| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 092172000 |
PISTON
| 272 |
| 092169100 |
CYLINDER DETAIL
| 134 |
| 092061000 |
RELATIVELY MOVABLE WORKING MEMBERS
| 77 |
| 092120100 |
DISPLACEMENT CONTROL OF PLURAL CYLINDERS ARRANGED IN PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS
| 76 |
| 092165000 |
WITH GUIDE OR SEAL ON CYLINDER END PORTION FOR PISTON OR MEMBER MOVED BY PISTON
| 55 |
| 092005000 |
WITH (1) SIGNAL OR INDICATOR OR (2) INSPECTION WINDOW IN EXPANSIBLE CHAMBER WALL PORTION
| 45 |
| 092153000 |
WITH LUBRICATING MEANS
| 38 |
| 092089000 |
COLLAPSIBLE CHAMBER WALL PORTION (E.G., HINGED OR FLEXIBLE WALL)
| 37 |
| 092015000 |
WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF WORKING MEMBER
| 32 |
| 092140000 |
WITH LINKAGE OR TRANSMISSION HAVING RELATIVELY MOVABLE MEMBERS
| 26 |
| 092143000 |
WITH MOVEMENT DAMPING MEANS (E.G., FLUID FLOW RESTRICTOR)
| 19 |
| 092130000 |
WITH SEPARATE BIASING MEANS FOR WORKING MEMBER
| 18 |
| 092161000 |
WITH SUPPORT OR FRAME (146)
| 16 |
| 092120000 |
OSCILLATING WORKING MEMBER OR CYLINDER THEREFOR
| 16 |
| 092031000 |
RECTILINEARLY MOVING WORKING MEMBER AND COAXIAL OR PARALLEL ELEMENT SLIDABLY INTERENGAGED FOR RELATIVE ROTARY MOVEMENT
| 16 |
| 092163000 |
FLUID CONDUIT OR PORT IN FIXED WALL OF WORKING CHAMBER
| 15 |
| 092034000 |
BELLOWS TYPE EXPANSIBLE CHAMBER
| 13 |
| 092054000 |
ROTATING CYLINDER
| 12 |
| 092085000 |
WITH CUSHIONING MEANS EFFECTIVE OVER A PORTION ONLY OF STROKE
| 12 |
| 092145000 |
COMBINED
| 10 |
| 092146000 |
PLURAL UNITARILY MOUNTED CYLINDERS OR FRAME THEREFOR (161)
| 10 |
| 092082000 |
WITH MEANS TO CONTROL FLUID FLOW FROM NON-WORKING CHAMBER
| 9 |
| 092008000 |
WITH MEANS TO CONTROL FLOW OF NON-WORKING ARRESTING FLUID FOR WORKING MEMBER
| 8 |
| 092002000 |
ONE WORKING MEMBER RECIPROCATES AND ANOTHER ROTATES COMMON OUTPUT MEMBER
| 8 |
| 092109000 |
PISTON WITH RIGID AXIALLY EXTENDING HOLLOW STEM
| 8 |
| 092051000 |
MUTUALLY RELATIVELY MOVABLE CYLINDER OR SLEEVE, MEMBER SEALINGLY SLIDABLE THEREIN AND OUTER CYLINDER THEREFOR
| 7 |
| 092144000 |
WITH ENCOMPASSING HEAT EXCHANGE MODIFYING SPACE OR JACKET
| 7 |
| 092128000 |
WITH ASSEMBLY OR DISASSEMBLY FACILITATING MEANS
| 6 |
| 092048000 |
PLURAL FLEXIBLE WALL WORKING MEMBERS
| 6 |
| 092139000 |
WITH CYLINDER WALL CONTACTING GUIDE ARTICULATED TO PISTON | 5 |
| 20100242720 | Bimetallic Crosshead - A reciprocating pump assembly having a crankshaft rotatable by an attached motor and coupled by a connecting rod to a crosshead member. On a side opposite the connection to the connecting rod, the crosshead member connects to a plunger. The plunger is coaxially disposed in a cylinder provided in a cylinder block. Rotating the crankshaft reciprocates the crosshead member and attached plunger. In an embodiment the crosshead member includes an outer shell and a core portion within the shell formed from a material different from the shell material. | 09-30-2010 |
| 20100275772 | COMPRESSOR SYSTEM AND FRAME - A reciprocating compressor is provided. In one embodiment, a reciprocating compressor frame includes a central body and at least two crosshead guides extending from opposite sides of the central body. Additionally, the compressor frame crosshead guide support structures extending outwardly from the central body along a respective crosshead guide. Other embodiments of compression systems, devices, and frames of such systems are also provided. | 11-04-2010 |
| 20120152110 | COMPRESSOR SYSTEM AND FRAME - A reciprocating compressor is provided. In one embodiment, a reciprocating compressor frame includes a central body and at least two crosshead guides extending from opposite sides of the central body. Additionally, the compressor frame crosshead guide support structures extending outwardly from the central body along a respective crosshead guide. Other embodiments of compression systems, devices, and frames of such systems are also provided. | 06-21-2012 |
| 20130199364 | COUPLING DEVICE FOR CONNECTING A BRAKE INPUT ELEMENT TO A MAIN BRAKE CYLINDER AND METHOD FOR OPERATING SUCH A COUPLING DEVICE - A coupling apparatus has an input piston disposable on a braking input element and an output piston disposable on a brake master cylinder, to which a driver braking force is transferable via the input piston. In a first operating mode, the input piston displaced out of its initial position over a brake application distance less than a first minimum brake application distance, is spaced apart from the output piston. In a second operating mode, the input piston displaced out of its initial position over a brake application distance less than a second minimum brake application distance, is spaced apart from the output piston, and the driver braking force is transferable via the input piston to the output piston. | 08-08-2013 |
| 20160186743 | PUMP ROD AND DRIVING LINK WITH SIDE-LOAD REDUCING CONFIGURATION - A pump rod has a head extending from a neck, and the head is received within a drive slot of a drive link. The head includes a projection, and has an area smaller than an area of the head. The projection contacts an inner surface of the drive slot. The drive link may include a projection aligned with a centerline of the drive link. The drive link projection contacts a head of the pump rod. The projections provide a reduced contact area between the pump rod and the drive link, thereby reducing any side-loading on the pump rod and increasing a lifespan of the wear parts. | 06-30-2016 |
| 092136000 |
WITH TOOTHED GEAR, SPLINE OR THREAD RIGID WITH WORKING MEMBER | 5 |
| 20100018387 | ROTARY ACTUATOR - In cylinder chambers | 01-28-2010 |
| 20100192765 | FIELD ADJUSTABLE PISTON ACTUATORS - Field adjustable piston actuators are described. An example field adjustable piston actuator includes a housing having opposing openings and a chamber. Additionally, the example piston actuator includes a first plate coupled to the housing and adjacent one of the opposing openings. Further, the example piston actuator includes a second plate coupled to a yoke and the housing. The second plate is adjacent the other one of the opposing openings. Further still, the piston actuator includes a volume adjuster to provide field adjustment to change a volume of the chamber. | 08-05-2010 |
| 20130220112 | CRYOGENIC REFRIGERATOR - A cryogenic refrigerator includes a cylinder; a displacer configured to reciprocate in the cylinder; a driving unit configured to drive a rotational shaft having an axial direction oriented in a direction of reciprocating movement of the displacer; and a movement conversion unit configured to convert rotational movement of the rotational shaft into the reciprocating movement of the displacer. The movement conversion unit is a screw unit including a male thread and a female thread one of which is a part of the displacer. | 08-29-2013 |
| 20160061231 | ROTARY ACTUATOR - A rotary actuator is equipped with an end cover disposed on one end surface of a cylinder main body, a first plug that is engaged with a wall surface constituting an opening on another end side of a first cylinder hole, and a second plug that is engaged with a wall surface constituting an opening on another end side of a second cylinder hole. A first port communicating with a first front cylinder chamber and a second rear cylinder chamber, and a second port communicating with a second front cylinder chamber and a first rear cylinder chamber are formed in the end cover. | 03-03-2016 |
| 20160377099 | LINEAR ACTUATOR - A linear actuator for generating a linear actuating force, including a first drive unit having a first drive shaft designed as a hollow shaft, a first rotation-translation transmission driven by the first drive unit, having a first threaded spindle and a first threaded nut engaging with the threaded spindle, wherein the drive shaft of the first drive unit is designed as a first threaded spindle, a second drive unit arranged axially to the first drive unit and having a drive shaft, and a second rotation-translation transmission driven by the second drive unit, having a second threaded spindle and a threaded nut engaging with the second threaded spindle, wherein the drive shaft of the second drive unit is connected to the second threaded spindle; via the hollow shaft in a rotationally fixed manner. | 12-29-2016 |
| 092138000 |
WITH LINKAGE OR TRANSMISSION ENGAGING PORTION INTERMEDIATE SPACED WORKING MEMBER END FACES | 5 |
| 20080289489 | Composite Piston Unit and Automatic Vehicle Transmission - A composite piston unit ( | 11-27-2008 |
| 20110138995 | COMPRESSION SYSTEM HAVING SEAL WITH MAGNETIC COUPLING OF PISTONS - A system, in certain embodiments, includes a barrier with magnetic coupling between opposite sides of the barrier. For example, the system may include a first member with a first magnet that translates along with the first member, and a second member having a second magnet that translates along with the second member. The system also may include the barrier completely isolating the first member from the second member, wherein the first magnet magnetically couples with the second magnet through the barrier to impart translational motion from the first member to the second member. | 06-16-2011 |
| 20140069271 | COUPLING STRUCTURE FOR PISTON USED IN FLUID-PRESSURE CYLINDER, AND COUPLING METHOD THEREFOR - A coupling structure for a piston used in a fluid-pressure cylinder. The piston in the fluid-pressure cylinder includes a piston hole that runs through a central part of the piston in an axial direction thereof. One end of a piston rod and a coupling body coupled to the one end are inserted into the piston hole. The coupling body includes: a main part that contacts the one end of the piston rod; and an angled part formed around the main part and inclined at a prescribed angle with respect thereto. When the coupling body is subjected to pressure inside the piston hole, the diameter of the coupling body increases and a pointed edge of the angled part engages with an inner surface of the piston hole such that the coupling body couples the piston and the piston rod. | 03-13-2014 |
| 20150013535 | ALTERNATIVE CRANKSHAFT MECHANISM - The invention is an alternative to existing crankshafts in piston driven internal combustion engines, pumps and gas compressors. The invention comprises a cylinder having both a connection for a piston connecting rod and a shaft to provide for engine related powering applications or applying power to the shaft in piston type pumps and gas compressors. A support bearing is located on the outside diameter of the cylinder. Weight reduction, simple construction, less parts, and cost savings are some of the advantages of the invention. | 01-15-2015 |
| 20150075368 | LIGHTWEIGHT COMPRESSOR PISTON WITH CIRCUMFERENTIAL OPENING - A piston may be provided which includes a first piston body portion having an end wall extending radially about a central axis along which the piston reciprocates. The piston may also include a second piston body portion having an end wall extending radially about a central axis along which the piston reciprocates. The first piston body portion and the second piston body portion are axially opposed. The piston may further include a first piston rod bore disposed in the first piston body portion extending along the central axis and a second piston rod bore disposed in the second piston body portion extending along the central axis. The piston may also include a circumferential opening disposed between the mating of the first piston body portion with the second piston body portion. | 03-19-2015 |
| 092129000 |
ABUTMENT CONNECTION BETWEEN WORKING MEMBER AND POWER TRANSMISSION ELEMENT | 4 |
| 20100101408 | ROTARY ACTUATOR - An actuator having one or more pistons. The piston has a rack formed in a skirt of the piston, with the rack recessed within the skirt of the piston in a groove formed between a top lip and a bottom lip. The gear, also called a pinion, engages the rack between the top lip and the bottom lip. As the rack traverses the gear, the shaft that extends through the gear is rotated. The top lip and bottom lip, and the recessed rack that is present within the skirt of the piston adds strength to the piston where the piston engages the gear. The top lip and the bottom lip assist in maintaining alignment of the rack with the gear so that the rack and gear properly mesh. | 04-29-2010 |
| 20100300281 | RETAINING SEGMENT - The invention relates to a retaining segment ( | 12-02-2010 |
| 20110023704 | PUMP, IN PARTICULAR HIGH-PRESSURE FUEL PUMP - The invention relates to a pump, having at least one pump element, which has a pump piston driven in a lifting motion at least indirectly by a drive shaft. The pump piston is guided in a cylinder bore of a housing part of the pump, and the housing part has a cylindrical section surrounding the cylinder bore. A cup-shaped tappet is disposed between the pump piston and the drive shaft and has a bottom facing the drive shaft. A jacket of the tappet is guided on the cylindrical section of the housing part in a displaceable manner. A spring is provided, by means of which the tappet is pressurized toward the drive shaft. The pump piston abuts the bottom of the tappet with the front thereof facing the drive shaft. A disk is mounted on the pump piston in the end region thereof facing the base of the tappet has a greater outside diameter than the pump piston. The pump piston has the disk is secured in the tappet in the direction of the longitudinal axis of the pump piston by means of a safety element engaging in the disk. | 02-03-2011 |
| 20160084248 | POSITIVE DISPLACEMENT HYDRAULIC PUMPS - This invention presents several configuration of a new positive displacement pump with variable geometric volume for hydraulic drive and control system or else, this pump consists of one more pumping groups. When one pumping group is used an external energy storage system is to be utilized. This is not necessary in the case when the pump has two or more pumping groups. | 03-24-2016 |
| 092088000 |
SEALED OPENING IN LONGITUDINAL WALL OF CHAMBER FOR RECEIVING WORKING MEMBER PORTION | 4 |
| 20100031813 | RODLESS CYLINDER DEVICE - A rodless cylinder device includes a piston body integrated with the central top portion of a rolling diaphragm, a cylinder body which fixes the circumferential annular fixing portion of the rolling diaphragm and in which the piston body is fitted to be freely movable, a slit which is formed in the cylinder body to extend therethrough and elongated in an axial direction, an inner-to-outer connector fixed to the piston body and projecting outwardly through the slit, an external moving body positioned outside the cylinder body and fixed to the inner-to-outer connector, and a supply and exhaust mechanism, formed between the rolling diaphragm, the cylinder body and the piston body, the supply and exhaust mechanism supplying and exhausting a pressure fluid to and from a pressure chamber. | 02-11-2010 |
| 20100083823 | ROD-LESS CYLINDER DEVICE AND SYSTEM AND METHOD FOR OPERATING THEREOF - The disclosure provides a rod-less cylinder, device adapted to longitudinally displace loads, said device comprising a shaft, a nut confined to move longitudinally within the shaft, a slider circumscribing said shaft and coupled to said nut, a drive adapted to displace said nut within said shaft, and a sensing means adapted to affect a signal sent via wireless means towards said drive. | 04-08-2010 |
| 20120031264 | SOLVENT DELIVERY PUMP - A plunger seal and a backup ring are provided at a portion of a pump chamber through which a plunger is inserted. A back face of the backup ring is supported on a wall face of a cleaning chamber. The backup ring is a combined backup ring including two resin layers, i.e., a deformable resin layer and a non-deformable resin layer. A face of the backup ring in contact with the plunger seal is made up of a face of the deformable resin layer and an inner peripheral face is made up of a face of the non-deformable resin layer. The deformable resin layer is a resin layer having a higher elastic modulus than the plunger seal and having such an elastic modulus as to be able to absorb deformation of the plunger seal. The non-deformable resin layer is a resin layer having a higher elastic modulus than resin of the deformable resin layer. | 02-09-2012 |
| 20120266749 | Reciprocation Pump And A Dialysis Apparatus Equipped With The Reciprocation Pump - A reciprocation pump has a supply liquid-side sub-pumping chamber arranged adjacent to the supply liquid-side pumping chamber at an external side. A waste liquid-side sub-pumping chamber is arranged adjacent to the waste liquid-side pumping chamber at an external side. A rod extends through the supply liquid-side sub-pumping chamber, the supply liquid-side pumping chamber, the waste liquid-side pumping chamber and the waste liquid-side sub-pumping chamber. The rod is connected to the reciprocation mechanism and the driving source to transmit a driving force of the driving source to the reciprocation mechanism. Sealing members are arranged, respectively, in walls through which the rod extends to partition the supply liquid-side pumping chamber and the supply liquid-side sub-pumping chamber as well as the waste liquid-side pumping chamber and the waste liquid-side sub-pumping chamber. | 10-25-2012 |
| 092117000 |
MOVING CYLINDER | 4 |
| 20110100208 | Air pump producing high pressure - Manually operated air pump for multistage compression of ambient air comprises a multiple coaxial cylinder arrangement. The air inlet ( | 05-05-2011 |
| 20110179947 | REMANUFACTURING HYDRAULIC PUMPS - A hydraulic pump can be remanufactured to save the investment in its components that are not seriously worn or failed. Some of the worn components, such as the pump barrel and yoke, can be salvaged by replacing or rebuilding the worn features. In particular, a worn internal spline on the pump barrel can be replaced by a spline insert that is threaded to the pump barrel and includes a new internal spline. A worn actuation tab on a yoke for contacting an actuating piston can be replaced by adding a new tab wear button. | 07-28-2011 |
| 20130139680 | HYDRAULIC APPARATUS, HANDLE, AND METHOD OF PRIVIDING AN EXTENDABLE HANDLE - Handles, extendable handles, and linkage mechanisms are examples of apparatuses that include a body; a pivotably attached head; cylinder, actuator, or hydraulic actuator; a fluid passage or hose; and a valve, blocking means, or hydraulic control device. The valve, blocking means, or hydraulic control device may be normally open and may close only when held closed, and may be connected on one side to the fluid passage or hose and on another side to atmosphere. An operator may use a tool, such as a drywall flat box attached to the head, by holding the handle and controlling pivoting of the head by operating the valve. Methods include providing for an operator to control a tool on a handle, and include providing the handle and instructing the operator to actuate the blocking means to hold the tool in a constant orientation relative to the handle. | 06-06-2013 |
| 20160115975 | PISTON-CYLINDER UNIT - A piston-cylinder unit having a cylinder, the interior of the cylinder being divided into two working chambers by a displaceable piston, a piston rod being arranged at the piston and guided outward in a sealed manner through one of the working chambers. A first connection end is arranged at the end of the cylinder opposite the piston rod and a second connection end is arranged at the free end of the piston rod. The cylinder is enclosed by a first housing which is fastened by its one end region to the first connection end. | 04-28-2016 |
| 20110100208 | Air pump producing high pressure - Manually operated air pump for multistage compression of ambient air comprises a multiple coaxial cylinder arrangement. The air inlet ( | 05-05-2011 |
| 20110179947 | REMANUFACTURING HYDRAULIC PUMPS - A hydraulic pump can be remanufactured to save the investment in its components that are not seriously worn or failed. Some of the worn components, such as the pump barrel and yoke, can be salvaged by replacing or rebuilding the worn features. In particular, a worn internal spline on the pump barrel can be replaced by a spline insert that is threaded to the pump barrel and includes a new internal spline. A worn actuation tab on a yoke for contacting an actuating piston can be replaced by adding a new tab wear button. | 07-28-2011 |
| 20130139680 | HYDRAULIC APPARATUS, HANDLE, AND METHOD OF PRIVIDING AN EXTENDABLE HANDLE - Handles, extendable handles, and linkage mechanisms are examples of apparatuses that include a body; a pivotably attached head; cylinder, actuator, or hydraulic actuator; a fluid passage or hose; and a valve, blocking means, or hydraulic control device. The valve, blocking means, or hydraulic control device may be normally open and may close only when held closed, and may be connected on one side to the fluid passage or hose and on another side to atmosphere. An operator may use a tool, such as a drywall flat box attached to the head, by holding the handle and controlling pivoting of the head by operating the valve. Methods include providing for an operator to control a tool on a handle, and include providing the handle and instructing the operator to actuate the blocking means to hold the tool in a constant orientation relative to the handle. | 06-06-2013 |
| 20160115975 | PISTON-CYLINDER UNIT - A piston-cylinder unit having a cylinder, the interior of the cylinder being divided into two working chambers by a displaceable piston, a piston rod being arranged at the piston and guided outward in a sealed manner through one of the working chambers. A first connection end is arranged at the end of the cylinder opposite the piston rod and a second connection end is arranged at the free end of the piston rod. The cylinder is enclosed by a first housing which is fastened by its one end region to the first connection end. | 04-28-2016 |
| 092137000 |
WITH FLEXIBLE TRANSMISSION ELEMENT SECURED TO WORKING MEMBER | 4 |
| 20090064857 | Pump Plungers and Methods - Various embodiments of the invention provide pumps, plungers and plunger assemblies, as well as methods of using them. In accordance with some embodiments, a plunger may comprise a ceramic material and/or may have a facial profile that may allow for more efficient pumping operations. In particular embodiments, for example, a plunger may have a facial profile that allows for deformation of at least a portion of the plunger when the face of the plunger is in contact with a pressurized fluid. Other embodiments provide plunger assemblies, which may comprise a flexible coupling attachment. Yet other embodiments provide pumps comprising such plungers and/or plunger assemblies. | 03-12-2009 |
| 20140007765 | RESONANT MECHANISM FOR LINEAR COMPRESSORS - The present invention relates to a resonant mechanism for compressors which comprises a tubular body (1) containing at least two slot sets (12) that delimit an intermediate surface (13) which central portion has substantially ellipsoidal conformation (14) on which it is located a hole (15) through which the resonant spring will be affixed (2); a resounding spring (2) housed within the tubular body (1); at least two fastening sets (3) for fastening the resonant spring (2) to the tubular body (1), and leaf flat springs (4) alternately and successively mounted with spacers (not shown) along with the circular side faces (11) of the tubular body (1). The slot sets (12) have a specific configuration to allow rigidity and flexibility suitable for the mechanism operation in situations where the resulting axial force differs from zero. | 01-09-2014 |
| 20140283677 | AIR COMPRESSOR HAVING CHAMBERED PISTON HEAD - An air compressor assembly includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition having an air passage formed between the cylinder housing and the outlet receptacle, a piston slidably received in the cylinder housing and having a piston rod extended from a piston head for moving relative to the cylinder housing to generate a pressurized air, the piston head includes an upper surface, and includes a cavity formed in the piston head and defined by a bottom surface and an inner peripheral surface and opened upwardly through the upper surface of the piston head and faced and directed toward the partition of the cylinder housing for partially receiving the pressurized air. | 09-25-2014 |
| 20160069361 | ANTI-KINK SYSTEM FOR MOVEABLE ELEMENT - A system and method for improving reliability and decreasing costs of an air-actuator assembly. The assembly may incorporate one or more performance improvements such as integrated conduits and active elements, ribbed portions on all or portions of conduits (e.g., where sharp bends are pathed) or coupling of a conduit to an active element (e.g., at an inlet/outlet port of a fluid reservoir), and/or use of one or more strategic side seams to help position and secure a desired routing and bending of conduit portions. | 03-10-2016 |
| 092078000 |
WITH FLUID PURIFYING MEANS | 3 |
| 20090173222 | Fluid System - The invention relates to a fluid system for a pump circuit ( | 07-09-2009 |
| 20100018386 | COMPRESSOR - The compressor is provided with an oil separator for separating oil from refrigerant gas introduced into a separation chamber, an annular space for reserving oil separated from the refrigerant gas, and a reservoir chamber for reserving the thus separated oil. The oil separator is provided in a cylindrical hole formed in a discharge chamber from which the refrigerant gas is discharged and a lid for partitioning the cylindrical hole from the discharge chamber is provided in the cylindrical hole. The oil separator introduces the refrigerant gas from the discharge chamber to the separation chamber via the introduction passage. The annular space is provided around the lid and connected to the reservoir chamber via an oil passage. The reservoir chamber is connected to a crank chamber of a pressure lower than that in the discharge chamber. | 01-28-2010 |
| 20150300711 | Compressor - A compressor capable of reducing oil circulation rate with a simple structure is provided. A compressor | 10-22-2015 |
| 092084000 |
RESILIENT MEANS INTERPOSED BETWEEN WORKING MEMBER AND RELATIVELY MOVABLE POWER TRANSMISSION ELEMENT | 3 |
| 20110132187 | HYDRAULIC STORED-ENERGY SPRING MECHANISM - Exemplary embodiments are directed to a hydraulic stored-energy spring mechanism for a high voltage circuit breaker. The spring mechanism includes a working cylinder situated in a working cylinder housing, at least one spring and at least one compression piston. The compression piston is slidably displaceable in a storage cylinder. The at least one storage spring pressurizes fluid located in the storage piston via the compression piston. The storage spring is held in a form-fitting manner by a support tube unit in the preloaded state. | 06-09-2011 |
| 20130008304 | CYLINDER - A clamping cylinder is disclosed. The cylinder includes a cylinder block defining a receiving chamber and two vents communicating with the receiving chamber, the cylinder block further defining a through hole communicating with the receiving chamber at a side; a piston slidably mounted in the receiving chamber and defining a through groove corresponding to the through hole, the piston further comprising a resisting surface; and a pushrod assembly comprising a push block movably mounted in the through hole, and a resilient member mounted in the through groove, the resilient member is connected to the push block; wherein the resilient member is adapted to pull the push block towards the piston, and the resisting surface is configured to resist the push block so that the push block moves along the through hole when the piston slides along the receiving chamber. | 01-10-2013 |
| 20130047837 | Piston-Chamber Combination - A piston-combination comprising an elongate chamber bounded by an inner chamber wall, and comprising a piston sealingly movable in the chamber relative to the chamber wall at least between a first and a second longitudinal position of the chamber, said chamber having cross-sections of different cross-sectional areas at the first and second longitudinal positions, and at least substantially continuously differing cross-sectional areas at intermediate longitudinal positions between the first and second longitudinal positions, the cross-sectional area at said second longitudinal position being smaller than the cross-sectional area at the first longitudinal position, said piston changing dimensions and having different cross-sectional areas thereby adapting to different cross-sectional areas of the chamber during the relative movements of the piston between the first and second longitudinal positions through said intermediate longitudinal positions of the chamber, said combination engaging a rigid surface and being movable relative to said surface. | 02-28-2013 |
| 092086000 |
WITH REMOVAL CONDUIT FOR LIQUID SEEPAGE FROM EXPANSIBLE CHAMBER | 3 |
| 20090000468 | Procedure For The Loading Of A Working Cylinder, Control Module For It, Working Cylinder And Utilization Of The Same - The invention demonstrates how energy saving working cylinders are loaded with fluid under pressure in order, for example, to power devices for tensioning (toggle joint tensioning apparatus), and/or compressing and/or jointing and/or stamping and/or embossing and/or punching and/or welding, if necessary, under the interposition of gearing parts such as guides, parallelogram gears, toggle joint articulations or the like, with the fluid supply being controlled in such a way during the no-load stroke (idle stroke) of the piston ( | 01-01-2009 |
| 20160377042 | HIGH PRESSURE PUMP - A fuel pump unit includes a pump head provided with an axial blind bore within which is arranged a piston extending from an inner end, inside the bore, to an outer end, outside the head, the outer end cooperating with a cam follower and a cam of which rotations reciprocally displace the piston. The pump unit also includes a coil spring axially compressed between pump head and the cam follower and a tubular turret assembly extending toward the cam and provided with a through bore through which extends the piston, the final spirals of the spring being slipped around the outer surface of the turret. The turret is an added part, non-integral to the pump head and, arranged in abutment against an under face of the pump head, the blind bore being coaxial to the through bore arranged in the turret. | 12-29-2016 |
| 20160377070 | HYDRAULIC MACHINE ARRANGEMENT - A hydraulic machine arrangement ( | 12-29-2016 |
| 092087000 |
WITH NON-SEALING CLEANING MEANS | 3 |
| 20110219947 | HIGH-PRESSURE FUEL PUMP - A high-pressure fuel pump includes a housing and a swash plate which is mounted in the housing and is arranged in an oil space of the housing. A drive shaft is connected to the swash plate and passes through a housing opening, and with a seal for the drive shaft, which seal is mounted in the housing in the region of the housing opening. The high-pressure fuel pump has a plurality of pump elements for sucking up, compressing and ejecting fuel, which pump elements can be acted upon consecutively by the rotatable swash plate. In a pump of this type, the fuel pump has at least one magnet, the magnetic force field of which acts on the oil space of the housing. Premature wear of the pump, in particular premature wear of the seal, is avoided since the magnet separates off iron-containing dirt particles found in the oil. | 09-15-2011 |
| 20120160090 | AIR CYLINDER - An air cylinder that can prevent foreign substances from intruding inside in an environment where fine foreign substances such as dust are scattered. The air cylinder includes, in a through hole of a rod cover, an annular lubricator impregnated with a lubricant so as to supply the lubricant to the rod and a liquid-absorptive annular dust wiper not containing a lubricant and provided for preventing fine foreign substances such as powder stuck to the rod from intruding inside. The lubricator and the dust wiper are disposed air-tightly and slidably in contact with the rod, and the dust wiper is located closer to a leading end of the rod than the lubricator. | 06-28-2012 |
| 20130014638 | HYDRAULIC CYLINDER CONTAMINATION PREVENTION SYSTEM - A hydraulic cylinder contamination prevention system for preventing large and small contaminants from entering into a hydraulic cylinder, including a hydraulic cylinder rod cover for underwater use with at least one automatic valve for preventing water circulation between the outside environment and the enclosed environment of the cylinder rod cover when the cylinder is stationary, egress of water from the cylinder rod cover when the cylinder is retracted, and ingress of water into the cylinder rod cover when cylinder is extended, and an external and abrasive cylinder rod scrubber. | 01-17-2013 |
| 092580100 |
KNOCKDOWN OR FLOW CONDUIT STORAGE OR RETRIEVAL MEANS | 3 |
| 20110000364 | Pump with Pivoting Needle - A hand pump with a rotatable portion of the pump head. The needle or adapter for attaching the pump to an inflatable is associated with the rotatable portion of the pump head so that the needle may be positioned in a first position for use and a second position for storage. The needle is protected by a sleeve when in the second position. | 01-06-2011 |
| 20110252959 | Pump - A pump includes a barrel slideably receiving an end of a piston rod. A valve seat is mounted to the barrel and has an air passageway. An adapter is mounted to the valve seat and includes a channel in communication with the air passageway. An end of a hose is connected to the channel. A coupling seat is mounted to the other end of the hose. A connecting block is mounted around the coupling seat. The connecting block is positionable to a side of the barrel. Two rotary inflation nozzles of different specifications are mounted to two ends of another hose. Each rotary inflation nozzle has a coupling thread for engaging with an inner thread of the coupling seat. When not in use, one of the rotary inflation nozzles is inserted into the barrel, and the other rotary inflation nozzle is engaged with an end portion on the piston rod. | 10-20-2011 |
| 20140090553 | FOLDABLE HANDLE FOR HAND PUMP - A hand pump includes a piston slidably engaged in a housing and coupled to a piston rod, a handle having a compartment for receiving the piston rod at an inwardly folding position and having a guiding passage formed in one of the two end portions of the handle, a stud extended from a middle portion of the handle and having a slot communicating with the passage of the handle for allowing the piston rod to be rotated relative to handle between the inwardly folding position and an outwardly working position where the piston rod is engaged in the stud and perpendicular to the handle, and a control ferrule is attached onto the piston rod for anchoring the piston rod to the housing at the outwardly working position. | 04-03-2014 |
| 092261000 |
MISCELLANEOUS (E.G., CRANKCASE) | 3 |
| 20100242721 | LINEAR COMPRESSOR - The present invention provides a linear compressor, including: a cylinder having a compression space of refrigerant therein; a piston linearly reciprocated inside the cylinder to compress the refrigerant; a supporter connected to the back of the piston; a plurality of front and rear main springs for elastically supporting the supporter; a motor cover installed at the front of the supporter with a predetermined interval in an axis direction to support the front main springs, a pair of supporting ends being formed by partially cutting an inner portion of the motor cover and bent backward; and a rear cover installed at the back of the supporter with a predetermined interval in an axis direction to support the rear main springs, and fixedly welded to the supporting ends of the motor cover. Unnecessary parts of the motor cover can be welded to the rear cover to prevent a material loss, and a mass-production process can be simplified to improve productivity. | 09-30-2010 |
| 20130298760 | SYSTEMS AND METHODS FOR REDUCING DEAD VOLUME IN COMPRESSED-GAS ENERGY STORAGE SYSTEMS - In various embodiments, dead space and associated coupling losses are reduced in energy storage and recovery systems employing compressed air. | 11-14-2013 |
| 20140216248 | Linear Actuator and Method of Operation Thereof - A method of locking a linear output member in a retracted position within a linear actuator, where the linear output member is capable of axial motion within a housing of the linear actuator, includes rotating a generally tubular rotor disposed within a rotary lock assembly of the actuator to a first rotor position, and shifting a lock capable of radial displacement within the rotary lock assembly based on rotating the rotor to the first position. The lock engages a radial groove of the linear output member when the linear output member is in a retracted position. The rotary lock assembly is constrained from axial motion. The radial groove of the linear output member includes an axially angled, substantially planar surface. The lock is configured to include an axially angled surface shaped complimentary to the axially angled, substantially planar surface of the radial groove. | 08-07-2014 |
| 092006000 |
EFFECTIVE AREA OF WORKING MEMBER END FACE SELECTIVELY VARIABLE | 3 |
| 20090272262 | Piston-Chamber Combination - A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall, and comprising a piston means in said chamber to be sealingly movable relative to said chamber wall at least between a first and a second longitudinal position of the chamber, said chamber having cross-sections of different cross-sectional areas at the first and second longitudinal positions, and at least substantially continuously differing cross-sectional areas at intermediate longitudinal positions between the first and second longitudinal positions, the cross-sectional area at said second longitudinal position being smaller than the cross-sectional area at said first longitudinal position, said piston means can change dimensions thereby providing for different cross-sectional areas of the piston means adapting the same to said different cross-sectional areas of the chamber during the relative movements of the piston means between the first and second longitudinal positions through said intermediate longitudinal positions of the chamber, said combination engaging a rigid surface. Said combination is movable relative to said surface. | 11-05-2009 |
| 20100170391 | Combination of a chamber and a piston, a pump, a motor, a shock absorber and transducer incorporating the combination - A combination of a piston and a chamber, wherein the chamber defines an elongate chamber having a longitudinal axis, the chamber having, at a first longitudinal position thereof, a first cross-sectional area thereof and, at a second longitudinal position thereof, a second cross-sectional area, the second cross-sectional area being 95% or less of the first cross-sectional area, the change in cross-section of the chamber being at least substantially continuous between the first and second longitudinal positions, the piston being adapted to adapt itself to the cross-section of the chamber when moving from the first to the second longitudinal position of the chamber. The piston may comprise an umbrella-like support structure or a fibre enforced deformable container comprising a foam or a fluid. The combination may be used in a pump, a linear actuator, a motor, or a shock absorber. | 07-08-2010 |
| 20090120283 | COMBINATION OF A CHAMBER AND A PISTON, A PUMP, A MOTOR, A SHOCK ABSORBER AND A TRANSDUCER INCORPORATING THE COMBINATION - A piston-chamber combination has an elongate chamber with a piston movable therein between first and second positions. The chamber has cross-sections of different areas and different circumferential lengths at the two positions, and substantially continuously different cross-sectional areas and circumferential lengths at intermediate positions, area and circumferential length at the second position being smaller than that at the first. The piston is elastically deformable and has other features to adapt to the different cross-sectional areas and circumferential lengths of the chamber during movements of the piston. | 05-14-2009 |
| 20090272262 | Piston-Chamber Combination - A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall, and comprising a piston means in said chamber to be sealingly movable relative to said chamber wall at least between a first and a second longitudinal position of the chamber, said chamber having cross-sections of different cross-sectional areas at the first and second longitudinal positions, and at least substantially continuously differing cross-sectional areas at intermediate longitudinal positions between the first and second longitudinal positions, the cross-sectional area at said second longitudinal position being smaller than the cross-sectional area at said first longitudinal position, said piston means can change dimensions thereby providing for different cross-sectional areas of the piston means adapting the same to said different cross-sectional areas of the chamber during the relative movements of the piston means between the first and second longitudinal positions through said intermediate longitudinal positions of the chamber, said combination engaging a rigid surface. Said combination is movable relative to said surface. | 11-05-2009 |
| 20100170391 | Combination of a chamber and a piston, a pump, a motor, a shock absorber and transducer incorporating the combination - A combination of a piston and a chamber, wherein the chamber defines an elongate chamber having a longitudinal axis, the chamber having, at a first longitudinal position thereof, a first cross-sectional area thereof and, at a second longitudinal position thereof, a second cross-sectional area, the second cross-sectional area being 95% or less of the first cross-sectional area, the change in cross-section of the chamber being at least substantially continuous between the first and second longitudinal positions, the piston being adapted to adapt itself to the cross-section of the chamber when moving from the first to the second longitudinal position of the chamber. The piston may comprise an umbrella-like support structure or a fibre enforced deformable container comprising a foam or a fluid. The combination may be used in a pump, a linear actuator, a motor, or a shock absorber. | 07-08-2010 |
| 20090120283 | COMBINATION OF A CHAMBER AND A PISTON, A PUMP, A MOTOR, A SHOCK ABSORBER AND A TRANSDUCER INCORPORATING THE COMBINATION - A piston-chamber combination has an elongate chamber with a piston movable therein between first and second positions. The chamber has cross-sections of different areas and different circumferential lengths at the two positions, and substantially continuously different cross-sectional areas and circumferential lengths at intermediate positions, area and circumferential length at the second position being smaller than that at the first. The piston is elastically deformable and has other features to adapt to the different cross-sectional areas and circumferential lengths of the chamber during movements of the piston. | 05-14-2009 |
| 092014000 |
WORKING MEMBER MOVES LOAD AND LATCHING MEANS FOR LOAD | 3 |
| 20120152109 | FEEDER ARM SAFETY STAND - A safety stand for minimizing the effect of hydraulic failure in an agricultural harvester is disclosed. In one embodiment, a system for raising or lowering a pivotable safety stand is provided which may take the form of a remotely operated hydraulic safety stand. In another embodiment, the mechanical stop provides multiple stops along the length of travel of the piston to prevent the dramatic falling of the feeder arm under the force of gravity. In one embodiment, the safety stand is provided with a series of notches along a longitudinal edge of the safety stand which are designed to accept and received a protrusion affixed to a cylinder of a hydraulic cylinder which raises and lowers a feeder arm. When the feeder arm is raised, the hydraulic cylinder is in the full upright position, the safety stand can be lowered such that the protrusion enters and is held within a notch to prevent accidental downward movement of the feeder arm. If the notch fails, or the safety stand is not properly engaged, the longitudinal edge of the safety arm is allowed to follow the protrusion, until a subsequent notch is reached, which then engages the protrusion, safely stopping the downward path of the feeder arm. | 06-21-2012 |
| 20140338525 | Locking Mechanism For Pedestrian Hood Lifters - A hood lifting mechanism includes a housing and a piston rod movably mounted in the housing so as to be extendible from the housing in a first direction. A retainer is secured to an exterior of the housing so as to define a cavity between the housing and the retainer. A locking member is positioned in the cavity and structured to contact the piston rod so as to impede motion of the piston rod in a second direction opposite the first direction. | 11-20-2014 |
| 20150090111 | Pyrotechnic Actuator - A novel actuator contains a housing having a first end, a second end, and an inner wall. A piston rod assembly is contained within the housing, wherein the assembly contains a piston rod, a first end cap fixed at one end of the piston rod, and a second end cap fixed at an opposing end of the piston rod. An energy management device is constrained about an outer diameter of the first end cap, wherein upon actuation of the actuator, the energy management device may under predetermined conditions be deformed upon movement of said piston rod. | 04-02-2015 |
| 092126000 |
WITH DIFFERENTIAL RADIAL THRUST PRODUCING MEANS FOR WORKING MEMBER | 3 |
| 20090301293 | Compressor - Known compressors are equipped with gas bearings, in which the bearing nozzles are continuously supplied with a stream of gas. According to the invention, the gas bearing is a self-sufficient bearing, in which the supply pressure is independent of the delivery pressure. To achieve this, the compressor is equipped with a gas reservoir with a bearing supply pressure. | 12-10-2009 |
| 20140326128 | FLOW RESTRICTOR AND GAS COMPRESSOR - A flow restrictor ( | 11-06-2014 |
| 20100083824 | Lobe Design For Fuel Pump Actuation - A fuel system may include a fuel pump and a drive shaft. The fuel pump may include a reciprocating member and the drive shaft may include a lobe member engaged with the reciprocating member. The lobe member may linearly displace the reciprocating member and drive the fuel pump. The lobe member may include a first lobe having a first opening flank driving a first compression stroke of the fuel pump through engagement with the reciprocating member. The first lobe may have a profile providing a constant velocity for the linear displacement of the reciprocating member for a portion of the first compression stroke. | 04-08-2010 |
| 092142000 |
WITH RESERVOIR FOR NON-COMPRESSIBLE WORKING FLUID | 2 |
| 20110048225 | CYLINDER APPARATUS - On a protrusion-formation portion of a rod guide, there are provided a first annular protrusion for supporting a radially outer side of a lid body and a second annular protrusion for supporting a radially inner side of the lid body. Accordingly, when an upper end side of an outer cylinder is caulked, the first annular protrusion provided to the rod guide is allowed to sandwich and fix the radially outer side of the lid body between the first annular protrusion and the caulked portion. Further, although the lid body is strongly pressed to the rod guide with use of a presser at the time of caulking the upper end side of the outer cylinder, a pressing force acting onto the lid body can be received by the second annular protrusion. As a result, the lid body is prevented from being permanently deformed. With this structure, the lid body can be formed to have a small thickness dimension. | 03-03-2011 |
| 20130074687 | Control of Underwater Actuators Using Ambient Pressure - A device for controlling an underwater actuator by using an ambient pressure potential at the operating depth may include a chamber including a first cavity, a second cavity and a third cavity; the first cavity including a gas at a first pressure including one of at surface atmospheric pressure, lower than surface atmospheric pressure, or a vacuum; the second cavity including a first fluid at a second pressure including at least one of at underwater ambient pressure or higher then underwater ambient pressure and being connected to a underwater fluid supply; the third cavity including a second fluid at a third pressure including at least one of underwater ambient pressure or higher than the underwater ambient pressure and being connected to the actuator. | 03-28-2013 |
| 092003000 |
WITH DISENGAGEABLE ROTARY DRIVE FOR MOVING WORKING MEMBER | 2 |
| 20120017756 | PNEUMATO-MECHANICAL REGENERATIVE POWER SOURCE - A pneumato-mechanical regenerative power source converts mechanical rotational power at an input/output shaft to stored potential energy, and vice versa, by coupling the input/output shaft to a ball screw via a planetary gear system, which translates a ball nut in cooperation therewith, which in turn translates a piston that provides for either compressing or expanding an associated energy storage gas. A first roller-clutch mechanism provides for locking the carrier of the planetary gear system when storing energy, and releasing the carrier when releasing stored energy, wherein upon release, the ball screw is coupled to the input/output shaft via an one-wayoverrunning clutch, and the carrier may be locked to limit the release of stored energy. | 01-26-2012 |
| 20120111186 | DEVICE FOR THE DOSED ADMINISTRATION OF A FLUID PRODUCT, ADAPTED FOR THE REPLACEMENT OF A CONTAINER - A device for administering a fluid product, the device including a first housing part provided with a receiver for the product, a second housing part detachably connectable to the first housing part, a piston rod held such that it can be displaced for the exertion of an emptying movement, an actuatable or releasable drive element for the piston rod, a coupling element including a coupling input element that couples the drive element to the piston rod in a coupling engagement, transmits a driving force of the drive element to the piston rod, and triggers the emptying movement, and a decoupling element displaceably connected to the second housing part and coupled to the first housing part such that it is displaced, by a movement of the housing parts in relation to each other when the housing parts are separated into a decoupling position wherein the piston rod is decoupled from the coupling input element. | 05-10-2012 |
| 092060000 |
WITH FLEXIBLE OR RESILIENTLY BIASED NON-WORKING MEMBER MOVABLE WALL IN CONSTANT COMMUNICATION WITH WORKING CHAMBER | 2 |
| 20140157979 | PNEUMATIC PRESSURE BRAKE BOOSTER SYSTEM AND METHOD - A pneumatic pressure brake booster system includes an air pressure chamber; an ambient air chamber; a flexible diaphragm separating the air pressure chamber and the ambient air chamber; at least one air pressure source communicating with the air pressure chamber; a brake pedal shaft engaged by and movable with the diaphragm; and a brake master cylinder engaged by the brake pedal shaft. | 06-12-2014 |
| 20160177980 | FLEXIBLE PNEUMATIC ACTUATOR | 06-23-2016 |
| 092107000 |
ANNULAR WORKING MEMBER OR ANNULAR LINEARLY EXTENDING CHAMBER THEREFOR | 1 |
| 20110132188 | MULTI-PART PISTON CONSTRUCTION FOR A BRAKE CALIPER OF A DISK BRAKE - A multi-part piston for a brake saddle of a hydraulically and/or mechanically and/or electromechanically actuated disk brake is described herein. The piston is a pot open on one side and including a base and a wall attached thereto in one piece. The base can be impinged by brake pressure coming from the inside of the pot so that an outward-facing abutting surface of the base can be pressed against a brake lining. The inside of the pot receives at least one pressure piece associated with a parking brake mechanism. For simplified manufacture in the form of a modular piston system for use in various applications, it is proposed that the pressure piece and the base comprise conical surfaces facing one another for transferring braking pressure. | 06-09-2011 |
| 092077000 |
GROUND EMBEDDED EXPANSIBLE CHAMBER | 1 |
| 20130174725 | SYSTEM FOR STORING POTENTIAL ENERGY AND METHOD FOR PRODUCING SUCH A SYSTEM - A system for storing potential energy includes a hydraulic cylinder, a mass to be lifted, and a sealing ring at the edge of the mass to be lifted. The mass to be lifted is a solid rock mass in the form of a cut-out solid rock. The hydraulic cylinder is formed by the cavity between surrounding rocks and the cut-out solid rock. The cavity is sealed with respect to the surrounding rocks by the sealing ring. A method for producing such a system is also provided. | 07-11-2013 |
| 092081000 |
WORKING MEMBER FORMS RESERVOIR FOR NON-COMPRESSIBLE WORKING FLUID | 1 |
| 20120222546 | VARIABLE DISPLACEMENT PISTON-IN-PISTON HYDRAULIC UNIT - A piston-in-piston hydraulic unit is disclosed that utilises an elastic volume to store and release energy with each stroke by varying the hydraulic fluid volumes in and out of the hydraulic unit. | 09-06-2012 |
| 092860500 |
PASSAGE IN CYLINDER FOR APPLICATION OF SEPARATE FLUID TO CYLINDER AND PISTON SIDE WALL INTERFACE | 1 |
| 20150068395 | AXIAL PISTON DEVICE - A housing of an axial piston device is provided with a drain port for discharging the retained oil to the outside and a supply oil passage for guiding lubricating oil, which has been supplied from an oil source, toward a first hydraulic axial piston member. The drain port is arranged so as to bring about such a retained-oil level that a second hydraulic axial piston member, which is disposed below the first hydraulic axial piston member, is partially or entirely immersed in the retained oil while the first hydraulic axial piston member is not immersed in the retained oil. | 03-12-2015 |
| 092600500 |
SELECTIVE CLEARANCE CONTROL | 1 |
| 20140260951 | MECHANISM FOR MAINTAINING A CLEARANCE GAP - An element is provided to maintain a clearance gap between a piston and a cylinder wall. In some embodiments, an element is included that is capable of spatial change. In some embodiments, the element is a component such as a clearance ring, a surface bearing, or a segment of a clearance ring or surface bearing. A clearance gap may be maintained by inward and outward motion of the component with respect to a piston assembly and a cylinder wall, where the motion is determined by a balance of forces acting on the component. In some embodiments, an inward force generated by an external gas pressure source is balanced by an outward preload force generated by, for example, a pneumatic piston. In some embodiments, a clearance gap is maintained based on in part on the ratio of inner to outer surface areas of a clearance ring. | 09-18-2014 |
| 092162000 |
SPACED CYLINDER AND PISTON WALLS DEFINE PASSAGE BETWEEN OPPOSED PISTON SIDE WALL ENDS | 1 |
| 20160201660 | A FLUID CYLINDER | 07-14-2016 |
| 092001000 |
WITH TEMPERATURE COMPENSATION | 1 |
| 20130125743 | COMPRESSION OF MEDIA - A method and a device for compressing a gas-phase medium, particularly hydrogen or natural gas, in a single-stage or multistage process using at least one piston compressor, wherein the medium may have a water content up to total saturation with water. The medium to be compressed is heated before the compression at least to such point that the water is unable to condense out during the compression process, and the compressed medium undergoes a water separation process. | 05-23-2013 |
| 092080000 |
WITH FORCE EXERTING MEANS TO MOVE FLUID FROM NON-WORKING CHAMBER | 1 |
| 20150135944 | PISTON/CYLINDER UNIT - A piston-cylinder unit including a piston ( | 05-21-2015 |
