| Entries |
| Document | Title | Date |
|---|
| 20080213105 | Reciprocating Piston Pump with Air Valve, Detent and Poppets - An air valving system for a reciprocating piston pump ( | 09-04-2008 |
| 20080260549 | CHEMICAL LIQUID SUPPLYING APPARATUS - A chemical liquid supplying apparatus which can discharge chemical liquid with high accuracy is provided. The apparatus is used to discharge the chemical liquid in a chemical liquid tank from an application nozzle. The apparatus has a combined member formed integrally with a pump case and a cylinder, and a flexible tube serving as a pump member is provided in the pump case, wherein its inside is a pump chamber and its outside is a pump-side driving chamber. A piston is assembled to the cylinder and when the piston is reciprocated by a motor, the pump chamber is expanded and contracted. A gap between the piston and the cylinder is covered with a diaphragm, and an interior of the diaphragm is a seal space. Therefore, an incompressible medium having leaked from the gap between the piston and the cylinder enters into the seal space and does not leak to the outside. | 10-23-2008 |
| 20080267794 | Hydraulic pump system with integrated distributor valve - The present invention is concerning a hydraulic pump system with integrated distributor valve, which is generally applied in a hydraulic circuit normally constituted of an oil deposit ( | 10-30-2008 |
| 20090004033 | Pumping Cassette - A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing pods. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet. | 01-01-2009 |
| 20090041596 | Downhole Electric Driven Pump Unit - A downhole electric driven pump unit for oil production comprises a submersible electric motor ( | 02-12-2009 |
| 20090047150 | Anti-jammed air pump - An anti-jammed air pump includes a shell, the shell has a motor, a diaphragm and an internal seat inside, an air chamber is formed between the diaphragm and the internal seat, the internal seat has inlets and outlets, the inlets or outlets have unidirectional disc respectively; diaphragm connects with the driving shaft of motor via a coupling device, an eccentric shaft and an eccentric gear, the shell has inlet coupling devices and outlet coupling devices which corresponding to the inlets and outlets in respective internal seats; a stress relief groove communicating the inside and outside of the air chamber is positioned in the edge of said internal seat which connects with the diaphragm. | 02-19-2009 |
| 20090142205 | CHEMICAL LIQUID SUPPLYING APPARATUS AND PUMP ASSEMBLY - A chemical liquid supplying apparatus, which can discharge chemical liquid with high precision, is provided. A pump assembly is detachably mounted in a pump case in which liquid inflow and discharge ports are formed. The pump assembly includes: a cylindrical body in which a piston is slidably incorporated axially; an elastically deformable bellows forming a pump chamber in the pump case and forming a drive chamber in which an indirect medium is enclosed; and an axially elastically-deformable bellows cover continuing with a sliding surface of the piston and forming a seal chamber in which the indirect medium is enclosed, and the pump assembly is unitized. The pump assembly is coupled to a drive shaft via a connecting member, and by axial-directional reciprocating movement of this drive shaft, the piston causes the bellows to perform a pump operation, whereby the chemical liquid is discharged from a liquid discharge portion. | 06-04-2009 |
| 20090169401 | TWO-STAGE AIR POWERED PUMP - A two-stage air powered hydraulic pump has a portion of the air pressure that operates the pump diverted directly to the reservoir. The air pressure on the reservoir presses hydraulic fluid in the reservoir out of the reservoir, through the pumping chamber and to the load to quickly advance the load under low load conditions and to pre-charge the pumping chamber. | 07-02-2009 |
| 20090185920 | System and Method for Pumping Fluid Using a Pump Cassette - A system and method for pumping fluid using a pump cassette. The system includes a control assembly for operating the pump cassette. A force assembly having a movable member is capable of applying force to the pump cassette to press the pump cassette against the control assembly. The movable member may be an expandable member, such as a bladder. | 07-23-2009 |
| 20090246045 | Device for Concentrating a Liquid, and Differential Piston Pump - Disclosed is a device (V) for concentrating a liquid (F) which is pumped through a concentrating apparatus ( | 10-01-2009 |
| 20090304533 | Rotary reciprocating intensified hydraulic actuator - This invention relates generally to a pneumatic, hydraulic or other media driver, rotating-reciprocating cylinder apparatus to be mounted on the proximal end of CNC lathe spindles, vertical or inverted machining centers, hydraulic machining work cells or rotary transfer machines to actuate work holding chucks, work holding fixtures, clamping apparatus or work supports on the distal end of said spindles. More specifically, this invention relates to an actuating system with the capability of boosting the input hydraulic pressure to the holding device by a pre-set multiple up to 5000 psi where the boost pump is integral to and rotates with the clamp cylinder assembly. | 12-10-2009 |
| 20100104456 | HYDRO-PNEUMATIC SYSTEM WITH PRESSURE LIMITING VALVE - A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted. | 04-29-2010 |
| 20100104457 | TURBOCHARGER - The turbocharger according to the invention has a rotor with a compressor wheel as well as a turbine wheel that is connected in a rotationally-fixed manner to the compressor wheel by means of a common shaft. The compressor wheel and the shaft are form-fittingly tensioned with one another, wherein respectively at least one or two torque-transmitting contact surfaces, which lie one atop the other, between components force-fittingly tensioned with one another, is provided with a friction-increasing coating. | 04-29-2010 |
| 20100183455 | Submersible Pump - The present invention relates to a submersible pump and a submersible pump system for pumping liquid to a marine structure, the pump being adapted to be located in a tube. The pump comprises an upper portion and a lower portion. The upper portion is adapted to be connected to means for suspending the pump in the tube. The pump has a vertical direction extending from the lower portion to the upper portion. The pump further comprises an inlet for allowing the liquid into the pump and an outlet for allowing the liquid out of the pump. The pump further comprises a sealing means located downstream of the inlet and the outlet in the vertical direction, the sealing means being adapted to seal against an inner surface of the tube. The invention further relates to an arrangement for hydraulic drive of the submersible pump and to a semi-submersible unit comprising the submersible pump system. | 07-22-2010 |
| 20100254832 | LIQUID SUPPLY DRIVE MECHANISM USING OSMOTIC PUMP AND MICROCHIP HAVING THE LIQUID SUPPLY DRIVE MECHANISM - Provided is a microchip having a liquid supply mechanism which can supply a solution in a micro flow path with a simple construction in which a drive source utilizing an osmotic pressure is arranged within the microchip and which controls the osmotic pressure by a control unit utilizing temperature or the like, whereby it is possible to effect drive control such as intermittent driving and continuous driving at a fixed velocity. The liquid supply mechanism using osmotic pressure includes an osmotic pump utilizing the osmotic pressure of a liquid filling chambers separated from each other by a semipermeable membrane, and a unit which varies the osmotic pressure by changing a condition of the solution in at least one of the chambers on the basis of a timing of a pumping operation. | 10-07-2010 |
| 20100260622 | ENERGY CONVERSION HYDRAULIC PLANT AND METHOD FOR CONTROLLING SUCH PLANT - The invention relates to a hydraulic plant (I) that defines a path ( | 10-14-2010 |
| 20100272587 | Submersible Pump Having A Two-Step Control Hydraulic Valve - A submersible pump includes a pump valve configured to switch the pump between first and second states in which a piston is respectively extended and retracted. The pump valve includes first and second components that reciprocate between corresponding first and second positions. The pump is in the first state when both components are in their corresponding first position. The pump is in the second state when both components are in their corresponding second position. Neither the valve nor the pump is hydraulically locked at any time during normal operation. | 10-28-2010 |
| 20100329902 | PNEUMATIC MOTORIZED MULTI-PUMP SYSTEM - Motorized single-machine multi-pump apparatus and closed-loop methodology interconnected with a gas pipeline at a natural gas production well, using pressurized gas flow and differential pressure to drive a pumping system regulated by pneumatic controls using self-generated clean, low-pressure instrument air. The apparatus is connected to the gas flow line and the outlet is connected back into the gas flow line at lower pressure, creating a differential pressure corresponding to the source of motive power for actuating a piston which is directly connected to a plurality of plungers. This plurality of plungers is alternately pushed into and pulled out of corresponding plunger-cylinders for creating an integral drive and pump system prerequisite for gas well site pumping operations. Instead of venting to the atmosphere, well gas is returned to the flow line whereupon only clean air from the self-generated instrument air circuit is vented into the atmosphere. | 12-30-2010 |
| 20110008188 | Pneumatically Operated Reciprocating Pump - The present invention relates to a pneumatically operated reciprocating pump comprising two opposed pumping chambers, in each one of which a respective flexible bellow slides between a compressed position and an expanded position, a slide of the two flexible bellows being controlled by shuttle means capable to alternatively let a gaseous fluid in one of the two chambers for expanding the respective flexible bellow, whereby when each one of the two flexible bellows assumes a threshold expanded position it interacts with mechanical means allowing the gaseous fluid to be discharged from the respective chamber, each one of the two flexible bellows having a front end in contact with a shaft that is alternatively pushed by one of the two flexible bellows thus compressing the other, each one of the two chambers being connected to at least one respective suction valve and to at least one respective delivery valve, wherein each delivery valve is provided with compensating elastic means capable to compensate variations of rate of fluid that is pumped by the respective chamber. | 01-13-2011 |
| 20110044829 | PUMPING SYSTEM - A pumping system comprising a membrane pump ( | 02-24-2011 |
| 20110070107 | Disposable Pump Head - The present invention provides a pump, comprising: a disposable pump head having an input port and an output port, and being configured to be frictionally engaged to a motor so as to pump fluid into the input port, through the disposable pump head, and out the output port; and a canister having a cover and a latching arrangement, and configured with an interior cavity dimensioned to receive the disposable pump head, the cover configured to close and frictionally engage the disposable pump head and the motor. The cover has a compressible member, like a pad, dimensioned so as to push a top surface of the disposable pump head so as to frictionally engage the disposable pump head and the motor. The cover may be arranged on a hinge. The latching arrangement may comprise a part for grabbing a lip of the cover. The disposable pump head may be diaphragm pump comprising an upper housing, a valve housing, reciprocating pistons, a diaphragm, an outer piston plate, a bearing housing and a cam for coupling to a shaft of the motor. | 03-24-2011 |
| 20110123369 | DISPLACEMENT TRANSDUCER - Provided is a displacement amplifying device which uses Pascal's principle and is insusceptible to temperature change. A main body ( | 05-26-2011 |
| 20110150675 | Viscous Fluid Pump And Related Methods - A viscous fluid pump is provided. The pump has a housing that has an inlet for receiving viscous fluid and an outlet for dispensing viscous fluid. A bushing within the housing has an opening proximate the inlet and which provides access into an inner chamber of the bushing. The opening extends beyond the inlet in a direction orthogonal to the longitudinal dimension of the pump. A piston is movable within the inner chamber, with the piston having a first position in which the inlet is in fluid communication with the inner chamber through the opening and a second position in which the inlet is not in fluid communication with the inner chamber. The housing may define an interior, with the interior of the housing being free of soft seals. | 06-23-2011 |
| 20120076677 | Drive System for a Pressure Wave Generator - A drive system for driving a diaphragm pressure wave generator comprising opposed first and second diaphragms ( | 03-29-2012 |
| 20120164008 | NEGATIVE-PRESSURE OXYGEN PROVIDING DEVICE - A negative-pressure oxygen providing device includes a base, a power unit, a first negative-pressure device, a second negative-pressure device, and a water suction member. The power unit is fixed on the base and includes a driving member with a driving shaft and a main shaft which communicates with the driving shaft. The driving member drives the driving shaft and the main shaft. The first negative-pressure device is connected to a lower end of the main shaft and includes multiple blades which are merged in the water. The water suction member is connected to the main shaft and includes multiple paths. Each path has a top portion located above the water and a bottom portion of each path is in the water. The second negative-pressure device is located above the water and fixed to the top of the driving shaft so as to suck air into the driving shaft. | 06-28-2012 |
| 20120308411 | Water-Powered Pump for Use in Irrigation and for Other Purposes - The present invention is directed to a water pump that may be easily constructed from inexpensive parts and materials and that is powered by the water source from which the water to be pumped is drawn. In a preferred embodiment, two pairs of lever arms located on opposite sides of the pump are alternately filled with water from the source and then emptied causing the lever arms to alternately ascend and descend. As the lever arms ascend and descend, they alternately fill and then compress a pair of pistons causing water to be pumped to an outlet of the pump. Water from the emptied lever arms may preferably be returned to the source, thus minimizing any impact of the pump on the environment and downstream users of the water source. | 12-06-2012 |
| 20120315163 | Air-driven hydraulic pump with pressure control - A hydraulically driven pump with driving pressure controlled within a predetermined range. The hydraulically driven pump has a driving-fluid port fluidly coupled to a compressed air source and ambient, a driven-fluid inlet port fluidly connected to a tank, and a driven-fluid outlet port. A pressure sensor is used for providing sensing values indicative to the driving pressure in the hydraulically driven pump, and the driving pressure is controlled in closed loop by releasing and filling air through the driving-fluid port. The hydraulically driven pump has a suction stroke, in which driven fluid is refilled into the pump, and a pressing stroke, in which driven fluid is pressed out. A hydraulic buffer is used to provide driving pressure during a suction stroke and two hydraulically driven pumps can work alternately in providing continuous pressure control. | 12-13-2012 |
| 20120328455 | Hydraulic Fan Assembly for an Engine Ventilation System - A fan for an engine ventilation system includes a housing defining an inlet and an outlet. A hydraulic motor is coupled to the fan housing and includes a motor housing, motor shaft, and shaft seal disposed between the motor housing and the motor shaft. An impeller assembly is disposed in the housing, as well as a stationary baffle that includes a baffle inner edge disposed axially between the impeller assembly and a second wall of the fan housing. A deflector disc is coupled to the impeller assembly and includes a deflector disc outer edge positioned axially rearward of the baffle inner edge. The deflector disc and baffle direct any hydraulic fluid leaking past the shaft seal away from the impeller assembly to a collection chamber. | 12-27-2012 |
| 20120328456 | REDUCTION OF PUMP NUISANCE | 12-27-2012 |
| 20120328457 | Unlimited Stroke Drive Oil Well Pumping System - An unlimited stroke drive method for pumping fluid from an oil well in which the well has a tubing string extending from the earth's surface down to a fluid producing formation. The method includes the steps of positioning a pump barrel within the tubing, an upper end of the pump barrel having communication through a standing valve with the interior of the tubing string, vertically reciprocating a length of flexible cable within the tubing string to vertically reciprocate a plunger within the pump barrel to allow a lower portion to quickly fill with fluid from the producing formation and then to a downward position in which fluid within the pump barrel lower portion is transferred through a traveling valve to an area within the pump barrel above the plunger to move formation fluid from within the pump barrel to the interior of the tubing and thence to the earth's surface. | 12-27-2012 |
| 20130022480 | Mechanical-Hydraulic Pumping System - Devices and methods for recovering production fluid from a subterranean formation using a mechanical-hydraulic production system. A mechanical-hydraulic production system is described that includes a power fluid pump, a production fluid pump and a hydraulically-actuated motor that is associated with the production fluid pump to actuate the production fluid pump. The power fluid pump is mechanically driven from the surface to fluid hydraulic power fluid to the motor, thereby driving the production fluid pump to pump production fluid. | 01-24-2013 |
| 20130078120 | Ejector-Less Vacuum Creation Pump Using Suction - Improvements in an ejector-less vacuum creation pump using suction from a low vibration and noise Eddy pump to create vacuum from the suction side of the pump volute where a liquid tornado effect feeds into an Eddy current effect located in the tornado center. Low heat is transferred to the fluid used to create the vacuum. The piping provides a fully open looped system, enabling self-priming of the pump where 2″ solid objects can pass thru the pump without clogging or plugging the pump. Fluid can be pumped in any direction with up to a 4 psi head pressure using the pump as a dedicated discharge pump and for quicker discharging of a VCHT tank at increased head pressures. This pump implement continuous vacuum creation, maintaining 18 Hg with a vacuum release valve to prevent build-up of urine crystals and other pipe clogging issues. | 03-28-2013 |
| 20130164155 | FORKLIFT - In a forklift, power is transmitted to a traveling pump and an operating machine pump through a PTO unit provided to an output shaft of an engine along front-rear direction of a vehicle body. The traveling pump is disposed to a first face of the PTO unit facing the hydraulic motor. An input shaft of the traveling pump is offset from the output shaft of the engine. The drive shaft of the hydraulic motor is offset from the output shaft of the engine and the input shaft of the traveling pump. The hydraulic motor is side by side with the traveling pump. The operating machine pump is mounted to a second face of the PTO unit mounted with the engine. An input shaft of the operating machine pump is offset from the traveling pump. The operating machine pump is under the engine to be side by side with the engine. | 06-27-2013 |
| 20130177456 | FLUID PRESSURE AMPLIFIER | 07-11-2013 |
| 20130202459 | WATER-POWERED PUMP ACTUATION SYSTEM - A water powered pump actuation system configured to power a reciprocating element of a pump. The pump actuation system may comprise a base, a wheel rotatably attached to the base, an attachment element fixed to the wheel and configured to fix the reciprocating element to the wheel. Rotation of the wheel in a first direction raises the reciprocating element and rotation of the wheel in a second direction lowers the reciprocating element. The actuation system may also comprise a cable attached to the wheel and a container attached to the cable, such that rotation of the wheel in the first direction lowers the container and rotation of the wheel in the second direction raises the container. Wheel rotation is controlled by water being cyclically pumped into and then emptied from the container via a pump in a reservoir below the container. | 08-08-2013 |
| 20130202460 | FLUIDICS PUMPING DEVICE - A fluidics pumping device including a body and a driving assembly is provided. The body has a chamber, a channel, an inlet and an outlet. The channel goes through the chamber and connects with the inlet and the outlet. The driving assembly is disposed in the chamber, and the driving assembly has a contact surface exposed in the channel. The contact surface is suitable for moving along an extension direction of the channel, for driving a fluid in the channel. | 08-08-2013 |
| 20130243620 | DUAL OUTLET PUMP - A dual outlet pressure pump includes a housing having first and second inlets as well as first and second outlets. A plurality of vanes are driven by a rotor. An asymmetric rotor cavity includes a first surface engaged by the vanes shaped to at least partially define a plurality of low pressure, high volume chambers. The cavity also includes a second surface engaged by the vanes shaped to at least partially define a plurality of high pressure, low volume chambers. Rotation of the rotor and vanes substantially simultaneously pumps a high volume of low pressure fluid between the first inlet and the first outlet and a low volume of high pressure fluid between the second inlet and the second outlet. | 09-19-2013 |
| 20130272905 | DEVICE FOR TRANSFERRING ENERGY BETWEEN TWO FLUIDS - Device for transferring energy between a driving fluid and a driven fluid without contacting or mixing with each other is provided. The device comprises: an elongate central body ( | 10-17-2013 |
| 20140023530 | PISTON PUMP FOR LIQUEFIED GAS - A fuel supply system for a vehicle uses a multi-piston LPG injunction pump which pumps fluid from a storage tank to an engine. The multi-piston pump uses the vehicle's pneumatic air system, wherein the pressurized air of this system alternatingly drives at least two pistons of the piston pump. Each piston moves through a pumping stroke and a return stroke wherein one piston moves through a pumping stroke, while the opposite piston moves through a return stroke. The pump includes barrier fluid chambers surrounding each of the pistons wherein during a pumping stroke of one piston, a first barrier fluid chamber associated with the one piston decreases in volume as the piston displaces through its pumping stroke. This reduction in volume of the barrier chamber drives the barrier fluid out of the first barrier fluid chamber into a second barrier fluid chamber associated with the second piston. By driving the barrier fluid into this second chamber, this pressurizes the second chamber and effects the displacing movement of the second piston through its return stroke as the barrier fluid chamber increases in volume through the movement of the second piston. | 01-23-2014 |
| 20140140869 | PNEUMATIC RECIPROCATING FLUID PUMP WITH REINFORCED SHAFT - Reciprocating fluid pumps include a reinforced shaft including an inner shaft and a protective cover. The protective cover at least substantially encapsulates the inner shaft. The inner shaft exhibits a greater resistance to mechanical deformation than the protective cover, and the protective cover exhibits a greater resistance to chemical corrosion by the subject fluid than the inner shaft. Methods of forming reciprocating fluid pump include forming a reinforced shaft and positioning the reinforced shaft within a subject fluid chamber and between two plungers. | 05-22-2014 |
| 20140199190 | Integrated Foot Pedal Control System for Hydraulic Power Take-Off Assembly for ATV - An integrated foot-operated pump control system for a variable-flow hydraulic power take-off assembly for use with an ATV. The integrated foot-operated pump control system simplifies installation, removal, and re-installation of the hydraulic power take-off assembly, eliminates hand fatigue, and enhances safety. The integrated foot-operated pump control system is embodied in a hydraulic power take-off unit having a variable-flow pump with a flow control mechanism and a foot-operated pump control system having a foot pedal and a control cable that remain attached to the hydraulic power take-off unit when it is disconnected from the ATV. | 07-17-2014 |
| 20140241913 | HYDRAULIC RELIEF AND SWITCHING LOGIC FOR CRYOGENIC PUMP SYSTEM - A cryogenic hydraulic reciprocating piston pump includes a casing which defines a piston chamber. The sidewall of the piston chamber includes a retraction spill port as well as a pumping spill port. At the end of a retraction stroke, a retraction spill passageway that extends through the piston becomes aligned with the retraction spill port and fluid is communicated from the pressurized side of the piston to the unpressurized side of the piston to stop the retraction stroke before the piston “bottoms out”. Similarly, at the end of a pumping stroke, a pumping spill passageway that extends through the piston becomes aligned with the pumping spill port which provides communication between the pressurized side of the piston and the unpressurized side of the piston thereby stopping movement of the piston before it “bottoms out”. | 08-28-2014 |
| 20150139829 | PUMPING ASSEMBLY - A pumping assembly includes a hydraulic pump having a hydraulic ram tied to a reciprocating annular piston having a central bore. When the annular piston moves in an upward direction, the hydraulic ram moves toward an extended position extending from the housing. When the annular piston moves in a downward direction, the hydraulic ram moves toward a retracted position retracted within the housing. A polish rod extends up through the central bore of the annular piston and is held in position by a polish rod clamp positioned on top of the hydraulic ram. The polish rod moves with the hydraulic ram. Other pumping systems, devices, and methods are also disclosed. | 05-21-2015 |
| 20150337816 | Eccentric roundel structure for compressing diaphragm pump with multiple effects - A cylindrical or inverted frustoconical eccentric roundel structure for a compressing diaphragm pump includes an annular positioning groove, a vertical or frustoconical flank and a sloped top ring extending between the annular positioning groove and the vertical or inverted frustoconical flank. By providing the sloped top ring, the oblique high frequency pulling and squeezing phenomenon that occurs in a conventional tubular eccentric roundel is completely eliminated. | 11-26-2015 |
| 20150337817 | Roundel structure for four-compression-chamber diaphragm pump with multiple effects - A cylindrical or inverted frustoconical eccentric roundel structure for a four-compression-chamber diaphragm pump includes an annular positioning groove, a vertical or inverted frustoconical flank, and a sloped top ring extending between the annular positioning groove and the vertical or inverted frustoconical flank. By providing the sloped top ring, the oblique high frequency pulling and squeezing phenomenon that occurs in a conventional tubular eccentric roundel is completely eliminated. | 11-26-2015 |
| 20150337818 | Vibration-reducing structure for five-compressing-chamber diaphragm pump - A vibration-reducing structure for five-compressing-chamber diaphragm pump features a pump head body and a diaphragm membrane. The pump head body includes five operating holes and a basic curved dent circum-disposed around the upper side of each operating hole. The diaphragm membrane includes five equivalent piston acting zones such that each of which has a acting zone hole with an annular positioning protrusion for each acting zone hole and a basic curved protrusion circum-disposed around each concentric annular positioning protrusion in corresponding position with each mating basic curved dent in the pump head body. Thereby, five basic curved protrusions completely insert into corresponding five basic curved dents with a short length of moment arm in generating less torque, which is obtained by length of moment arm multiplying a constant acting force and primarily causes adverse vibration. With less torque, the vibration strength of the five-compressing-chamber diaphragm pump is substantially reduced. | 11-26-2015 |
| 20150337819 | Roundel structure for five-compressing-chamber diaphragm pump - The present invention provides a roundel structure for five-compressing-chamber diaphragm pump. The eccentric roundel structure is a cylindrical eccentric roundel in an eccentric roundel mount. The cylindrical eccentric roundel basically comprises an annular positioning dent, a vertical flank and a sloped top ring created from the annular positioning dent to the vertical flank. By means of the sloped top ring, the oblique pull and squeezing phenomena of high frequency incurred in a conventional tubular eccentric roundel are completely eliminated. Thus, not only the durability of the five-compressing-chamber diaphragm pump for sustaining the pumping action of high frequency from the cylindrical eccentric roundels is mainly enhanced but also the service lifespan of the five-compressing-chamber diaphragm pump is exceedingly prolonged. | 11-26-2015 |
| 20150337820 | Five-compressing-chamber diaphragm pump with multiple effects - The present invention provides a five-compressing-chamber diaphragm pump with multiple effects, which comprises an eccentric roundel mount with five cylindrical eccentric roundels, a pump head body with five operating holes, and a diaphragm membrane with five annular positioning protrusions. A basic curved dent is circum-disposed around each operating hole while a basic curved protrusion is circum-disposed around each corresponding annular positioning protrusion for suitably coupling upon assembly. A short length of moment arm from the basic curved protrusions to the annular positioning protrusion is obtained. By the pump head body and diaphragm membrane, the present invention solves harassing noise and vibrating resonant shakes in the conventional five-compressing-chamber diaphragm pump. The cylindrical eccentric roundel comprises a sloped top ring created from an annular positioning dent to a vertical flank in the eccentric roundel mount. By cylindrical eccentric roundels, the service lifespan of the five-compressing-chamber diaphragm pump is extended. | 11-26-2015 |
| 20150354549 | HIGH-PRESSURE ROTATING SEALING COUPLING WITH CONTINUOUS EXPANDABLE RING - A high-pressure rotating sealing coupling with continuous expandable ring ( | 12-10-2015 |
| 20150360848 | PRESSURE-DRIVEN METERED MIXING DISPENSING PUMPS AND METHODS - An example pressure-driven metered mixing dispensing pump includes a housing, a fluid inlet, a piston disposed in the housing at least partially defining first, second and third chambers, the first and second chambers each in fluid communication with the third chamber, the piston to, in response to first fluid entering the first chamber via the fluid inlet, move in a first direction to decrease the volume of the second chamber thereby ejecting second fluid from the second chamber into the third chamber, a spring to move the piston in a second direction to decrease the volume of the first chamber thereby ejecting at least some of the first fluid from the first chamber into the third chamber thereby mixing the at least some of the first fluid and the second fluid to form a mixture, and an outlet to discharge the mixture from the third chamber. | 12-17-2015 |
| 20150377229 | PUMP ASSEMBLY FOR PUMPING A FLUID LUBRICANT - A pump assembly for pumping a fluid lubricant such as grease or oil, the pump assembly comprising: a pump mechanism configured for moving a fluid lubricant; a pneumatic cylinder configured for being powered by an air source, the pneumatic cylinder comprising: a movable member for operating the pump mechanism, wherein the pump assembly further comprises a switch for detecting a position of the movable member; a valve configured for shifting a position of the moveable member upon an activation of the valve; and a control unit operable connected to the switch and the valve. The control unit is configured for controlling the activation of the valve in response to a detection of the position of the movable member by the switch, such that a pumping effect of the pump mechanism can be controlled. The pump assembly can be integrated into a lubrication system. | 12-31-2015 |
| 20160102658 | Metering Pump and Metering System - The invention relates to a metering pump having a hydraulic drive ( | 04-14-2016 |
| 20160160849 | Systems and Method for Pump Protection with a Hydraulic Energy Transfer System - A system includes a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid. The first fluid is at a higher pressure than the second fluid. The system also includes a high pressure pump configured to increase a pressure of the second fluid. Additionally, the system includes a controller programmed to control one or more valves of the system to selectively route the second fluid to the hydraulic energy transfer system or to the high pressure pump based on an operating condition of the system. | 06-09-2016 |
| 20160161017 | HYDRAULIC MOTOR COMPARTMENT WITH HYDRAULIC MOTOR DRIVE - The present invention relates to an actuator for adjusting at least one actuating component in a motor vehicle comprising at least one linearly movable actuating element that can be brought into operative connection with the actuating component at least indirectly, wherein the actuating element can be activated by means of at least one hydraulic drive. | 06-09-2016 |
| 20190145395 | Method of Construction for High Cycle Fatigue Resistant Pressure Vessels in Hydrogen Service | 05-16-2019 |
