| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 417472000 | Bellows-type chamber | 74 |
| 20080199335 | VACUUM STORAGE CONTAINER WITH INTEGRATED PUMP - An application for a container with integrated vacuum pump including a non-porous sealable enclosure with walls and an aperture in a first of the walls. A vacuum pump is affixed to the first of the walls of the non-porous sealable enclosure. The vacuum pump has an inflow port that is interfaced to the aperture so that the vacuum pump is adapted to evacuate air from the non-porous sealable enclosure through the aperture. | 08-21-2008 |
| 20080199336 | Outdoor Equipment - A lightweight, collapsible foot pump made of a lightweight, collapsible material and filled with a foam like material which features large open cells to contain a large volume of air. The foam acting as a return spring for the pump. | 08-21-2008 |
| 20080253910 | Pressure Wave Generator - A pressure wave generator ( | 10-16-2008 |
| 20080304987 | Bladder-Inflating Structure - A bladder-inflating structure including a resilient air chamber having a receiving space which can be reciprocally compressed and released. After released, the resilient air chamber itself can resiliently restore to its original state. An inflatable bladder is connected to one side of the resilient air chamber. An intake valve is disposed on the resilient air chamber. When the resilient air chamber is compressed and released, the intake valve only permits external air to one-way flow into the receiving space. A one-way membrane nozzle is disposed on one side of the resilient air chamber between the receiving space and the bladder. The one-way membrane nozzle is composed of two soft thin membranes. The peripheries of the soft thin membranes are partially fused with each other to define a fluid passage. The fluid passage has an inlet end extending into the receiving space and an outlet end extending into the bladder. The one-way membrane nozzle only permits the fluid to one-way flow from the receiving space of the resilient air chamber into the bladder to inflate the bladder. | 12-11-2008 |
| 20090110576 | System of bellows and co-acting part - The invention relates to a system of bellows and co-acting part, comprising a co-acting part which comprises a stiff outer wall, and a bellows co-acting therewith which comprises a flexible wall of a predetermined shape and thickness, wherein the flexible wall of the bellows is movable along the stiff outer wall of the co-acting part, wherein the bellows comprises at least two separately deformable flexible wall parts' which each co-act with a different part of the stiff outer wall of the co-acting part. | 04-30-2009 |
| 20090136370 | Fluid Dispenser Comprising a Bellows - Apparatus ( | 05-28-2009 |
| 20090304537 | PNEUMATIC CHEMICAL PUMP - A pneumatic chemical pump includes a pump body having a base and a cover, and a bellows-type container. The base defines an inner receiving space, and is provided with two opposite one-way valves communicating with the receiving space. The bellows-type container is located in the receiving space in the pump body with a lower open end communicating with the two one-way valves. Multiple internal and external annular channels are alternately formed on a peripheral wall of the bellows-type container. Each of the internal annular channels has a lower surface radially inward and downward inclined toward to the lower open end. When the bellows-type container works to pump out a working fluid therein, the working fluid follows the inclined lower surfaces of the internal annular channels to completely flow out of the container without the risk of forming crystals to adversely affect the usable life of the bellows-type container. | 12-10-2009 |
| 20100021326 | Method fo pumping agglomerative liquid and method of producing recording medium - A method of pumping an agglomerative liquid includes providing a diaphragm pump defined herein and pumping the agglomerative liquid using the diaphragm pump, the diaphragm has an annular thickened portion in the peripheral portion thereof as defined herein, the pump head has at least one channel communicating the inner peripheral edge of the clamping surface and the pump chamber, the diaphragm is reciprocally movable in opposite directions perpendicular to the diaphragm plane to increase and decrease the volume of the pump chamber so as to pump the liquid, the thickened portion of the diaphragm, the holding member, and the pump head are configured to satisfy the relation A | 01-28-2010 |
| 20100086419 | Membrane Suction Pump Unit - A membrane suction pump unit has a dimensionally stable membrane frame ( | 04-08-2010 |
| 20100119392 | RECIPROCATING PUMP - The structure is improved so that a bearing is disposed in a place other than pump shafts, thereby improving the smoothness of the slide movement of a moving body which is a large structure, and the durability of slide supporting means (bearings or the like) for it. In a reciprocating pump having: a pump body | 05-13-2010 |
| 20100178182 | HELICAL BELLOWS, PUMP INCLUDING SAME AND METHOD OF BELLOWS FABRICATION - A helical pump system includes at least one pressure chamber at least partially defined by a helical bellows plunger comprised of a tubular body, a closed front portion, an open rear portion, and at least one contour extending continuously as a helix, longitudinally from proximate the front portion to proximate the rear portion. Methods for forming a helical bellows plunger include molding the helical bellows plunger using a mold core comprising a helically extending exterior contour and a cooperatively associated mold cavity comprising a helically extending interior contour of substantially a same pitch and configured to align with the helically extending exterior contour of the mold core, introducing a molding material therebetween, curing the molding material, and unscrewing the cured molding material from the mold core. | 07-15-2010 |
| 20100178183 | PUMP MOUNTING | 07-15-2010 |
| 20100178184 | BELLOWS PLUNGERS HAVING ONE OR MORE HELICALLY EXTENDING FEATURES, PUMPS INCLUDING SUCH BELLOWS PLUNGERS, AND RELATED METHODS - A pump system includes at least one pressure chamber at least partially defined by a helical bellows plunger comprised of a tubular body, a closed front portion, an open rear portion, and at least one contour extending continuously as a helix, longitudinally from proximate the front portion to proximate the rear portion. Methods for forming a helical bellows plunger include molding the helical bellows plunger using a mold core comprising a helically extending exterior contour and a cooperatively associated mold cavity comprising a helically extending interior contour of substantially a same pitch and configured to align with the helically extending exterior contour of the mold core, introducing a molding material therebetween, curing the molding material, and unscrewing the cured molding material from the mold core. Various configurations of helical bellows plungers are also disclosed. | 07-15-2010 |
| 20100260632 | Foam pump with bellows spring - A spring member extending from a first end to a second end about a longitudinal axis, the spring having an inherent bias to assume an extended position with a first end spaced from the second end along the axis, the spring assuming compressed positions when compressed by forces applied parallel to the axis, in the compressed positions the spring resiliently urges its first and second ends axially away from each other toward the extended position, the spring member having a wall in the shape of a solid of revolution rotated about the axis and defining a central cavity therein open at the first end of the spring and substantially closed at the second end of the spring, the wall when in the unbiased extended position having a greatest diameter at the first end and a least diameter at the second end, a plurality of openings through the wall, the openings disposed symmetrically both circumferentially and axially relative to each other. | 10-14-2010 |
| 20100266432 | MICRO VALVE, METHOD FOR PRODUCING A MICRO VALVE, AS WELL AS MICRO PUMP - A micro valve includes a first valve chamber and a second valve chamber as well as a closing element, which is adjustable between an opening position, in which the valve chambers are connected to each other, and a closing position in which the valve chambers are separated from each other. A reference chamber is provided, which is delimited by the closing element. | 10-21-2010 |
| 20100296954 | FLEXIBLE CHAMBER - The invention is concerned with a chamber amending its volume by displacement free of leakage of a surface element constituting one of the end surfaces of the chamber. The side walls of the chamber comprise a selected number of sleeves which are connected free of leakage by means of elastic seal. The chamber according to the invention is characterized in that the volume of the chamber is amended when small differences occur in the balance between the forces effecting said surface element and that this property is effected very little of the difference between the internal and the external pressure of the chamber. The chamber according to the invention may be used to increase the efficiency of different products such as high pressure valves, pulsation dampener, piston pumps and such. | 11-25-2010 |
| 20110097227 | Structure of Preventing Water From Leakage for the Pressurized Pump of Diaphragm Type - The present invention is to provide a structure of preventing water from leakage for the pressurized pump of diaphragm type with steps orderly comprises: corresponding to the threaded hole on each wobble plate, a hollow cylinder is first contrived on the top surface of each piston acting region of the diaphragm sheet; after sleeving the ladder hole of the piston head pushing chunk on the diaphragm sheet onto the peripheral of said hollow cylinder, drive the fixing screw via the center hole of said hollow cylinder into the threaded hole on each wobble plate of the pressurized pump of diaphragm type; and in the beginning of driving said fixing screw, the upper portion of said hollow cylinder will expand first; after thoroughly and tightly driving said fixing screw into the threaded hole on each wobble plate, the upper portion of said hollow cylinder will expanding deform and fill up the space between the bottom surface of the head of said fixing screw and the top surface of said ladder hole of said piston head pushing chunk; Thus, the function of said hollow cylinder becomes a blocking contrivance in preventing the water from leaking and seeping into the motor and avoiding the damage of pressurized pump of diaphragm type due to electric short circuit of the motor. | 04-28-2011 |
| 20110103984 | VALVE AND DIAPHRAGM FOR A PUMP - A diaphragm pump ( | 05-05-2011 |
| 20110135522 | VALVE BODY FOR PUMPS - A valve body for pumps has a compressed air-filled chamber in the center thereof and a compressed air supply port through which compressed air is supplied into the compressed air-filled chamber. The outer surface of the valve body is provided with an annular groove-shaped air supply chamber that communicates between the compressed air-filled chamber and a pump-side air chamber. Compressed air supplied into the compressed air-filled chamber through the compressed air supply port is supplied into the pump-side air chamber through the air supply chamber. | 06-09-2011 |
| 20110293452 | Micro-ejector and method for manufacturing the same - There are provided a micro-ejector and a method for manufacturing the same. The micro-ejector according to the present invention includes a passage plate including a barrier rib portion disposed in an upper space in a chamber and a protruding portion disposed in a lower space in the chamber and forming a passage in the same direction as a fluid discharging direction together with the barrier rib portion; and an actuator formed on the upper portion of the passage plate to correspond to the chamber and providing a driving force of discharging the fluid to the nozzle from the chamber. | 12-01-2011 |
| 20110318207 | BELLOWS PUMP - A bellows pump which is further improved so that, without causing performance reduction and increases of the installation place and the cost, shock vibration which is generated in the timing of switching between suction and discharge can be suppressed is provided. | 12-29-2011 |
| 20120014824 | PUMP DEVICE AND METHODS FOR MAKING THE SAME - Bellow actuated pump devices for dispensing a product from a container may include a bellow and a base or a bellow, a base, and a valve wherein actuation of the bellow dispenses a product and the de-actuation of the bellow refills the pump for the next actuation. | 01-19-2012 |
| 20120034116 | COMPRESSOR - A compressor for providing pressurized air at a predetermined pressure and at a predetermined volume. The compressor has a motor with a shaft to which an eccentric is attached which moves a crank rod upwardly and downwardly and to which is attached a flexible diaphragm. The reciprocal movement of the diaphragm draws air into a chamber while an inlet flapper valve opens and expels air from the chamber through an outlet flapper valve. The flapper valves are made from spring steel and act in a cantilever movement to open and close the inlet and outlet passageways. O-rings are provided to deaden the sound of the flappers. A counterweight is attached to the eccentric to provide an opposed force to the force generated by rotation of the eccentric. An air bleeder allowing air movement between the inlet and outlet passageways may be provided to adjust the air pressure emanating from the compressor. | 02-09-2012 |
| 20120070325 | MULTI-LAYER PRIMER APPARATUS AND METHODS - Primer Apparatus and methods are described herein. An example primer apparatus includes a flexible body defining an internal chamber to be fluidly coupled to a fuel system. The body includes a first layer material having a low permeation characteristic to substantially prevent diurnal emissions from escaping the fuel system and a second layer material adjacent the first layer material having a relatively high resiliency compared to the first layer material to enable the body to return to an uncompressed shape when the body is deflected and released by a user. | 03-22-2012 |
| 20130094983 | DIAPHRAGM FOAM PUMP FOR FOAM DISPENSERS AND REFILL UNITS - A refill unit for a foam dispenser including a liquid container and a diaphragm foam pump connected to the liquid container and diaphragm foam pumps. The diaphragm foam pump includes an elastomeric diaphragm having an air piston bore and a bellows. The air piston bore forms at least a portion of an air chamber. A reservoir is located at least partially within the bellows that includes a liquid inlet. The diaphragm foam pump includes a piston that forms a portion of the air chamber wherein the piston bore may be moved relative to the piston. Movement in a first direction causes air in an air chamber to be compressed and draws liquid into the reservoir and further movement in the same direction causes compressed air to flow into the reservoir where it mixes with the liquid and is expelled as a foam. | 04-18-2013 |
| 20130202467 | Pump and Valve Combination for an Article of Footwear Incorporating an Inflatable Bladder - An article of footwear having a pump and valve combination for inflating an inflatable bladder. In one embodiment the pump and valve combination has a pumping area formed between top and bottom polymeric films with a foam insert located therein and an air intake hole leading into the pumping area. A conduit leads from the pumping area to an inflatable bladder and a flow restrictor is located in a pathway of the conduit. In a second embodiment the pump and valve combination has a pumping area formed between top and bottom polymeric films and a grommet. An air intake is located in the pumping area. The grommet has an exhaust hole and a flexible band arranged around the grommet, including the exhaust hole. | 08-08-2013 |
| 20130272909 | DIAPHRAGM WITH PASSIVE FLOW RATE CONTROL FOR COMPRESSION STAGE - A diaphragm for the compression stage of a compressor comprises a set of at least one through passage ( | 10-17-2013 |
| 20130336824 | PUMP DEVICES AND METHODS FOR USING THE SAME - A simplified pump system may include a bellow having a suction valve, a stem, and a fluid lock wherein the product flow into and out of a pump chamber formed by the bellow and stem is controlled by the suction valve and fluid lock. | 12-19-2013 |
| 20130336825 | PUMP DEVICE - The pump device has a driving member with one end connected to a diaphragm and another end connected to a driving mechanism. The driving mechanism side end repeats reciprocating motion along first axial direction and oscillation in second axial direction. The diaphragm side end performs the reciprocating motion in the first axial direction, and a problem is that the diaphragm easily deteriorates to be cut in a direction in which the diaphragm can be easily stretched, for example, in the second axial direction for performing oscillation. By embedding the base fabric having the fiber which extends in the second axial direction into the diaphragm, the strength in the second axial direction and the durability can be improved. By providing the index part to indicate the second axial direction, the extending direction of the fiber of the base fabric embedded within the diaphragm becomes distinguishable. In assembling the pump device, it becomes easy to place the diaphragm in a desired direction to the main body of the pump. | 12-19-2013 |
| 20140003983 | RESTRAINED, UNATTACHED, ULTRAPURE PUMP DIAPHRAGM | 01-02-2014 |
| 20140010689 | BELLOWS PUMP - A bellows pump which is provided with a case member that forms an axial space therein, closed-bottomed cylindrical bellows that are arranged in the space in an axially extendable/contractable manner and axially separate the space into a pump chamber and an operation chamber, suction valves that are provided on a suction side of the pump chamber and guide a fluid to be transferred to the pump chamber, and discharge valves that are provided on a discharge side of the pump chamber and discharge the fluid to be transferred from the pump chamber, and which extends/contracts the bellows by introducing a working fluid into the operation chamber to discharge the working fluid from the operation chamber, wherein each of the bellows is configured by alternately forming mountain portions and valley portions along the axial direction and having, on a predetermined position in the axial direction, annular ring portion integrally formed therewith. | 01-09-2014 |
| 20140072465 | Bellows Pump - A bellows pump including in its pump case ( | 03-13-2014 |
| 20140147318 | IMPROVED BELLOWS FOR A PUMP DEVICE - Improved bellows and bellows and base attachments for pumps facilitate smaller actuation forces for pumps having a base and unitary valve member. | 05-29-2014 |
| 20140219842 | HIGH PRESSURE BELLOWS ASSEMBLY - A high pressure bellows assembly is disclosed herein. The high pressure bellows assembly includes a first bellows being reversibly expandable. The high pressure bellows assembly also includes a second bellows being reversibly expandable. The high pressure bellows assembly also includes a chamber including a first portion encircling the first bellows, a second portion including an interior of the second bellows, and a third portion placing the first and second portion in fluid communication. | 08-07-2014 |
| 20140241922 | STRUCTURE OF SIMPLIFIED INFLATION VALVE - A simplified inflation valve includes a base forming centrally a bore. The bore has a bottom to which a PU membrane is attached. The membrane includes at least one aperture in a location outboard the bore. An outer circumference of the membrane is fixed to the base through ultrasonic technique or die pressing. A squeezer is mounted on the base and has elasticity for elastically resuming shape after being pressed and has an interior space forming an air chamber. The air chamber has a top forming at least one through hole. The squeezer has a bottom including an outer circumferential portion forming a sealing rim, which is fixed, through ultrasonic technique or die pressing, to the base so as to form an inflation valve. The inflation valve can be connected to an air bladder, whereby through pressing the inflation valve, the air bladder can be inflated. | 08-28-2014 |
| 20140248170 | MICRODIAPHRAGM PUMP - A microdiaphragm pump having a diaphragm chamber in contact with one side of an intake valve and one side of a discharge valve. The microdiaphragm includes two valve plate sheets | 09-04-2014 |
| 20140255228 | Quick Release Pump Clamp - A diaphragm pump includes a first plate, a second plate and a diaphragm having first and second side surfaces. A fluid chamber is defined by the first plate and the first side of the diaphragm, a fluid inlet fluidly connected to the fluid chamber and a fluid outlet fluidly connected to the fluid chamber. An air chamber is defined by the second plate and the second side of the diaphragm, such that the diaphragm is retained between the first plate and the second plate. A clamp moves between a first position in which the first plate is fixedly connected to the second plate and the diaphragm, and a second position in which the first plate is disconnected from the second plate and the diaphragm to permit disassembly of the first plate, the second plate and the diaphragm. | 09-11-2014 |
| 20140334956 | PUMP FOR VEHICLE SUSPENSION SYSTEM - A pump includes a housing defining an interior volume, a diaphragm partitioning the interior volume into a pumping chamber and an actuating chamber, a diaphragm support associated with the actuating chamber and configured to limit movement of the diaphragm, and a dispersion element coupled to the housing. The dispersion element includes a network of channels that is configured to distribute a fluid within the pump. | 11-13-2014 |
| 20150050171 | DIAPHRAGM PUMP GUARANTEED WITH OPERATIONAL RELIABILITY - Provided is a diaphragm pump guaranteed with operational reliability that enables a fluid to be continuously sucked and discharged by causing a volume change of an working chamber through a diaphragm pulsating according to the flow of compressed air controlled by movement of a spool constituting an air control valve, and smoothly can pump a fluid by reliably controlling the flow of compressed air using an up-and-down motion of a spool performed by pressure of the compressed air, and thus completely resolving an inoperative situation caused by a delay in motion of the spool. The diaphragm pump includes: a pump body ( | 02-19-2015 |
| 20150056089 | SEALING DIAPHRAGM AND METHODS OF MANUFACTURING SAID DIAPHRAGM - Described is a method for manufacturing a diaphragm assembly through the use of injection molding. The method can avoid the use of PTFE as a chemically resistant coating. Further, the method can increase overall adherence of a polymer diaphragm to an insert through the use of an interference surface on at least the surface of a head of the insert. | 02-26-2015 |
| 20150071801 | VENTING PUMP DEVICE - A simplified pump system including a bellow ( | 03-12-2015 |
| 20150147209 | DOWNHOLE RADIALLY ACTUATED LONGITUDINAL DIAPHRAGM PUMP - A diaphragm pump and pump system including a pump housing defined along a longitudinal axis and having defined therein one or more pumping chambers and one or more driving chambers. At least two check valves communicating with each of the one or more pumping chambers for conducting a production fluid into and out of the pumping chamber. One or more flexible axially elongated diaphragms are mounted in the pump housing and sealingly separate the one or more pumping and driving chambers. At least one cam mechanism is disposed in the pump housing and coaxially therewith the pump housing longitudinal axis. The at least one cam mechanism is configured for rotational movement to provide for radial deflection of the one or more flexible axially elongated diaphragms into the one or more pumping chambers to effect pumping of a production fluid therethrough the diaphragm pump. | 05-28-2015 |
| 20150300344 | CRYOGEN PUMP - A cryogen pump, including: a pump section that includes: a bellow with an inlet opening at a first end and an exit opening, the inlet opening in direct fluid communication with a volume of a cryogen, the exit opening at least in fluid communication with a second end of the bellow opposing the first end, a pair of plugs configured to sealingly close the opposing ends of the bellow, the pair of plugs cooperating so that when one plug sealingly closes one of the ends, the other end of the bellow is open; and a drive section configured to drive the pump section in a reciprocating manner so as to move the plugs. | 10-22-2015 |
| 20150316425 | PUMP PROVIDED WITH AN ASSEMBLY FOR MEASURING THE TEMPERATURE OR FLOW RATE OF A FLUID - A pump including a first substrate in a plane with a side having a cavity formed therein. There are intake and discharge channels in the side for admitting and discharging a fluid. There is a second substrate having a side joined to the first substrate, to close the channels and form tubes in which pumped fluid flows. The second substrate also has a membrane to close the cavity to form a leak-tight chamber. The membrane is deformable: in order to expel the fluid out of the chamber via the discharge channel, and to suck the fluid into the chamber via the intake channel. There is actuator capable of converting the energy into movement of the membrane and an assembly for measuring the temperature/flow rate of the fluid. There is a temperature probe placed on the exterior side of the insulating material to insulate thermally the probe from the substrate. | 11-05-2015 |
| 20150330383 | MEMBRANE PUMP - A pump comprising a pump body defining a circulation space for circulation of fluid according to a direction of circulation from an entry orifice of the circulation space to an output orifice of the circulation space; a membrane retained in the circulation space substantially parallel to the direction of circulation; and an actuating device adapted to vibrate the membrane in a direction substantially perpendicular to the direction of circulation, wherein the membrane comprises a material or a protective coating having a polymer organic matrix with a Young's modulus in a range of between 100 MPa and 10 GPa. | 11-19-2015 |
| 20150337826 | Compressing diaphragm pump with multiple effects - A compressing diaphragm pump with multiple effects includes an eccentric roundel mount with three cylindrical eccentric roundels, a pump head body with three operating holes, and a diaphragm membrane with three annular positioning protrusions. A basic curved groove or other positioning structure is circumferentially disposed around each operating hole while a basic curved protrusion or other mating positioning structure is provided in the diaphragm membrane for suitably coupling with the corresponding groove or positioning structure in the pump head body upon assembly, resulting in a shortened length of moment arm from the basic curved protrusions or other positioning structures and an annular positioning protrusion, and a reduction in vibration-caused noise and resonant shaking in comparison with a conventional compressing diaphragm pump. The cylindrical eccentric roundels each includes a sloped top ring extending between an annular positioning groove and a vertical or inverted frustoconical flank of the eccentric roundel mount resulting in an extended service lifespan of the compressing diaphragm pump. | 11-26-2015 |
| 20150337832 | Vibration-reducing structure for four-compression-chamber diaphragm pump - A vibration-reducing structure for compressing diaphragm pump features a pump head body and a diaphragm membrane. The pump head body includes four operating holes, a first curved vibration-reducing positioning structure circumferentially disposed around the upper side of each operating hole, and or a linked four-curve positioning structure that collectively extends around all of the operating holes. The diaphragm membrane includes four equivalent piston acting zones and second curved vibration-reducing position structures situated at positions corresponding to the positions of the first curved vibration-reducing positioning structures. The first positioning structures in the pump head body, which may be grooves, slots, perforations, or protrusions, mate with the corresponding second positioning structures in the diaphragm membrane to reduce the moment arm generated during pumping by movement of the diaphragm membrane, which may be protrusions, grooves, slots, or perforations, thereby generating less torque to decrease the strength of vibrations and vibration noise. | 11-26-2015 |
| 20150369234 | METERING PUMP - The present invention relates to a metering pump for continuously feeding a predetermined amount of a fluid. The present invention uses a used tire as a compression member | 12-24-2015 |
| 20160003228 | PUMP DEVICE AND PUMP SYSTEM - To provide a pump device capable of limiting discharge of a fluid when the operation is stopped. A pump device ( | 01-07-2016 |
| 20160047375 | DIAPHRAGM PUMP INTEGRALLY INCLUDING QUICK DISCHARGE VALVE UNIT - A diaphragm pump includes a quick discharge valve unit that comprises a vessel including a supply passage, a check valve seat, a delivery passage and a discharge passage, and an elastic member configured to partition an internal space of the vessel into an input-side space connected to the supply passage and an output-side space connected to the delivery passage and the discharge passage. The elastic member includes a check valve body to prevent an inflow of air from the output-side space to the input-side space, and a discharge port valve body configured to close the discharge passage when air is supplied to the input-side space through the supply passage. The vessel includes a connecting path having a sectional area smaller than an area of a section of the supply passage, and configured to release pressurized air in the input-side space to an outside. | 02-18-2016 |
| 20160053756 | VALVE AND VALVE SEAT FOR A DIAPHRAGM PUMP - A valve assembly for a diaphragm pump reduces leakage while providing good flow-through by including shaping of the seat and/or the valve that increases the elastic tension between the valve and seat in outer regions of the valve assembly, thereby providing a more optimal tension over the entire valve. In embodiments, outer regions of the seat are more steeply sloped upward than inner regions while the valve is substantially uniform in slope. In other embodiments, valve outer regions are less steeply sloped upward, or more steeply sloped downward, than its inner regions, and the seat is substantially uniform in slope. A vertical cross section of the seat and/or valve can include continuous curvature and/or discrete changes in linear slope. In some embodiments, two linear slopes are included in the vertical cross section of the seat or valve. The pump can be a multi-chamber pump. | 02-25-2016 |
| 20160069341 | Diaphragm Pump Having Position Control - The invention relates to a diaphragm pump, comprising a pumping chamber, a suction connection and a pressure connection, which are both connected to the pumping chamber, a working chamber, which is filled with a hydraulic fluid, a device for applying an oscillating pressure pi to the hydraulic fluid, a diaphragm, which separates the pumping chamber and the working chamber from each other and can be moved back and forth between a pressure stroke position and a suction stroke position, wherein the volume of the pumping chamber is smaller in the pressure stroke position of the diaphragm than in the suction stroke position of the diaphragm, and a storage chamber for accommodating hydraulic fluid at the pressure p | 03-10-2016 |
| 20160076529 | MEMBRANE PUMP - The invention relates to a diaphragm pump ( | 03-17-2016 |
| 20160115850 | EXHAUST GAS ANALYZING SYSTEM AND PUMPING DEVICE - Disclosed is an exhaust gas analyzing system which includes a main flow passage provided with a PM collection filter, a diluted exhaust gas sampling flow passage connected upstream of the PM collection filter of the main flow passage for sampling a part of diluted exhaust gas, a diluted exhaust gas flow rate adjusting mechanism connected downstream of the PM collection filter of the main flow passage, and control equipment altering a setting flow rate of the diluted exhaust gas flow rate adjusting mechanism depending on a flow rate of sampling diluted exhaust gas flowing through the diluted exhaust gas sampling flow passage. | 04-28-2016 |
| 20160115952 | PUMP, PUMP DEVICE, AND LIQUID SUPPLY SYSTEM - A stay of a liquid can be suppressed. A pump | 04-28-2016 |
| 20160123315 | RAPID-DISCHARGE-VALVE STRUCTURAL BODY AND DIAPHRAGM PUMP - A rapid-discharge-valve structural body ( | 05-05-2016 |
| 20160169218 | Metallic Sandwich Diaphragm Pump Mechanism | 06-16-2016 |
| 20160175505 | PUMPING CASSETTE | 06-23-2016 |
| 20160195085 | MICROFLUIDIC DEVICE WITH VALVE | 07-07-2016 |
| 20160377071 | FLUID APPARATUS - A fluid apparatus includes a bellows that is configured to be extendable and contractible in an axial direction in order to suck a fluid from a suction flow passage and eject the fluid to an ejection flow passage. The bellows has peak portions and valley portions, which are alternately formed in the axial direction, and annular side surface portions, which are located between the peak portions and the valley portions and connect the peak and valley portions to each other. A ratio B/A of the thickness B of the axial middle part of each of the peak portions in a direction which is perpendicular to the axial direction, to the thickness A of each of the side surface portions in the axial direction is set within a range of 1.3 to 1.8. | 12-29-2016 |
| 417473000 | Plural bellows | 14 |
| 20080267800 | Reciprocating Pump | 10-30-2008 |
| 20090035163 | Reciprocating Diaphragm Pump - A reciprocating pump ( | 02-05-2009 |
| 20100166583 | AIR COMPRESSOR - An air compressor includes a chassis that supports thereon a motor, a transmission set, and a plurality of extendible barrels. The transmission set includes a clutch that is operatively coupled to the motor through a belt. Two eccentric rotation members are respectively arranged on opposite sides of and coupled to the clutch. Each eccentric rotation member is coupled to a crank arm, which has a moving end connected to the extendible barrel. The extendible barrel is provided with an air inlet port and an air outlet port. When the motor is set in operation, the transmission set drives the extendible barrels to move carry out reciprocal and axial compression to delivery compressed air. The present invention features easy maintenance and can carry out a noise-free operation. | 07-01-2010 |
| 20100183462 | DIAPHRAGM PUMP - A diaphragm pump ( | 07-22-2010 |
| 20120100022 | DIAPHRAGM MACHINE - The present invention concerns a multi-cylinder diaphragm machine having at least two hydraulically driven diaphragms includes: a drive unit for producing at least two pulsating hydraulic fluid flows for driving the diaphragms and a delivery unit for delivering a delivery medium and having at least two pump chambers, the volumes of which can be varied by the movement of a respective diaphragm, wherein each delivery chamber is connected by way of a pressure valve to a pressure line and by way of a suction valve to a suction line. To provide a multi-cylinder diaphragm machine which avoids or at least alleviates the specified disadvantages and which is extremely compact and thus saves on space and material, has a high energy efficiency and a high degree of flexibility in adaptation to the conditions at the installation location and with which it is at the same time ensured that mounting and dismantling of the individual diaphragms and valves are easily possible, in accordance with the invention it is proposed that the delivery unit includes a diaphragm body in which the pressure and suction lines are arranged and at least two hydraulic bodies, wherein each hydraulic body is connected to the drive unit, wherein formed between each hydraulic body and the diaphragm body is a cavity in which one of the diaphragms is arranged so that by production of the pulsating hydraulic fluid flows the diaphragms are moved within the cavities and a delivery medium is periodically transferred from the suction line into the pressure line. | 04-26-2012 |
| 20120237377 | PUMP DEVICE FOR A CONTAINER FOR LIQUID, PASTY OR FOAMABLE CLEANSING AND SKIN CARE PREPARATIONS - The subject matter of the invention is a pump device for a container for liquid, pasty or foamable skin care preparations, e.g. for liquid soaps, disinfectants, skin protection pastes or creams, wherein the pump device comprises a conically tapering bellows, wherein the bellows exhibits several bellows elements each having a different diameter, wherein at least one smaller bellows element can be pushed into an adjacent larger bellows element. | 09-20-2012 |
| 20140271292 | ROTARY NEEDLE AND EXPANDING BELLOWS PRESSURE INDICATOR - A fluid pressure indicating device is disclosed. The fluid pressure indicating device includes a base defining an aperture therethrough, a plate separated from the base by a variable distance, the plate defining a hole therethrough, a shaft including a helical surface disposed within the hole of the plate, a first bellows extending between the base and the plate, and a second bellows extending between the base and the plate, the second bellows disposed around the first bellows, the first bellows and the second bellows defining a first chamber therebetween. The first bellows and the second bellows expand or contract in response to a difference between a pressure inside the first chamber and a pressure outside the first chamber. The variable distance between the base and the plate varies upon expansion or contraction of the first bellows and the second bellows, such that the shaft rotates relative to the plate. | 09-18-2014 |
| 20150300350 | HIGH-EFFICIENCY DOUBLE-INTAKE AIR PUMP - Disclosed is a high-efficiency double-intake air pump, comprising a motor, a connector, a housing and a power assembly, and a lower horseshoe-shaped diaphragm, a lower case of a piston chamber, an upper case of a piston chamber, an upper horseshoe-shaped diaphragm, a disk-shaped air nozzle and an air nozzle protection disk, which are provided in the front end of the housing and are connected in series successively and cooperatively in an axial direction, wherein the front end of the motor is arranged in the rear end of the housing via the connector, the air nozzle protection disk is fixedly connected to the end face of the housing, and the power assembly comprises wave-shaped cam and couples of double-ended pistons. The air pump has an artful and compact design structure, high operation efficiency, and a low noise. | 10-22-2015 |
| 20150359203 | FLUID DELIVERY SYSTEM OF AN IN OVO INJECTION APPARATUS - A fluid delivery system implemented within an in ovo injection apparatus is disclosed, wherein the fluid delivery system includes a plurality of membrane valves. In particular, the fluid delivery system includes a diaphragm valve that is used to meter out a precise volume of a treatment substance liquid. Further, the diaphragm valve includes certain standoff features on the surface thereof for reducing or entirely preventing the adhesion of the diaphragm to adjacent surfaces when left idle for an extended period of time, as well as an arrangement of fluid channels in the surface thereof for reducing or entirely preventing the trapping of liquid between the diaphragm and adjacent surfaces. The fluid delivery system includes features contributing to optimized flow characteristics. | 12-17-2015 |
| 20150359956 | FLUID PUMPING APPARATUS FOR USE WITH A REMOVABLE FLUID PUMPING CARTRIDGE - The present invention involves, in some embodiments apparatus, such as dialysis apparatus, and methods for pumping fluid. Certain embodiments comprise a housing enclosing a pump drive assembly for actuating at least one pump on a removable fluid pumping cassette. The housing may comprise a door connected to the housing for enclosing an installed cassette in the housing upon closure of the door. The pump drive assembly may comprise a mating block configured for operative association with an installed cassette and may be configured to permit a sealing engagement with an installed cassette upon closure of the door. To facilitate sealing, certain embodiments of the door include a movable compression plate configured to exert a compressive force on an installed cassette against the mating block when the door is in a closed position. | 12-17-2015 |
| 20160017882 | DIAPHRAGM PUMP UTILIZING DUCKBILL VALVES, MULTI-DIRECTIONAL PORTS AND FLEXIBLE ELECTRICAL CONNECTIVITY - Diaphragm pump features upper/lower diaphragm pumping assemblies (U/LDPAs) for pumping fluid and a manifold assembly arranged therebetween. The manifold assembly include a manifold body having an inlet with dual inlet ports and an inlet chamber to receive the fluid from a source; an inlet check valve assembly channel having an inlet duckbill check valve assembly (DCVA) arranged therein to receive the fluid from the dual inlet ports; U/LDPAs orifices having the U/LDPA arranged therein to receive the fluid from the inlet DCVA via first upper/lower manifold conduits and provide the fluid from the U/LDPAs via second upper/lower manifold conduits; an outlet check valve assembly channel having an outlet DCVA arranged therein to receive the fluid from the U/LDPAs; and an outlet having dual outlet ports and an outlet chamber to receive the fluid from the U/LDPAs and provide the fluid from the pump to a outlet source. | 01-21-2016 |
| 20160040664 | VALVE CLACK AND AIR PUMP HAVING SAME - A valve clack and an air pump having the same are provided. The valve clack includes a mounting column; a plurality of blades surrounding the mounting column and distributed in a circumferential direction of the mounting column, each blade defining a radial inner end connected with the mounting column and elastically swingable with respect to the mounting column, adjacent blades being spaced apart from each other by a rib, the rib defining an end connected with the mounting column, a buffer structure configured to provide a buffer space for deformation of the blade being provided in the blade adjacent to a position at which the blade is connected with the rib. | 02-11-2016 |
| 20160106906 | BLOOD PUMP - The present invention defines a blood pump comprising a cartridge, the cartridge comprising a first recess therein, said first recess having a surface, and a flexible diaphragm closing said first recess, the first recess and the flexible diaphragm defining a first pump chamber, said first pump chamber having an inlet and an outlet wherein the flexible diaphragm of the first pump chamber is movable between a first position, separated in use from the surface of the first recess, wherein in said first position said first pump chamber has a maximum volume, and a second position, substantially adjacent to the surface of the first recess, wherein in said second position said first pump chamber has a minimum volume, a pump driver arranged to interface with the cartridge, said pump driver operable to move the flexible diaphragm of the first pump chamber in a first direction into said first recess to, in use, pump blood from the chamber and to move the flexible diaphragm of the first pump chamber in a second direction away from the first recess to, in use, draw blood into said first pump chamber, wherein, the cartridge further comprises one or more sensor cavities defined by respective recesses in the cartridge, the, or each, recess being closed by a flexible diaphragm. | 04-21-2016 |
| 20160121351 | DOUBLE ACTING BLADDER PUMP - An exemplary refill unit includes a container and a pump secured to the container. The pump includes a liquid inlet, a first chamber, a second chamber, a liquid inlet valve, a liquid outlet valve; and an outlet. The liquid inlet valve has a first sealing member that allows fluid to flow into the first chamber and a second sealing member that allows fluid to flow into the second chamber and prevents fluid from flowing out of the first chamber back into the container. The liquid outlet valve has a first sealing member that allows fluid to flow out of the first chamber and through the liquid outlet and a second sealing member that allows fluid to flow out of the second chamber and through the liquid outlet. | 05-05-2016 |
