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| Number | Title | Issue Date |
| 8033801 | Liquid chemical supply system and liquid chemical supply control device The occurrence of fluctuations in liquid chemical during the discharge and intake thereof in a device that employs a liquid chemical supply pump 10 that discharges liquid chemical taken in by means of a change in volume inside a pump chamber 16 that ac... | 10/11/2011 |
| 8007257 | Reduced pressure delivery system having a manually-activated pump for providing treatment to low-severity wounds A manually-activated reduced pressure treatment system includes a substantially rigid housing, and an end cap slidingly received by the housing. An inner chamber is disposed between the end cap and housing, and a volume of the inner chamber is variable in amount dep... | 08/30/2011 |
| 7883325 | Helically actuated positive-displacement pump and method First and second structures are connected by helical fibers. The orientation between the first and second structures are changed, and by doing so, the positions of the helical fibers are correspondingly changed. The position of change of the helical fibers can be us... | 02/08/2011 |
| 7434710 | Bellows pump mechanism A bellows-type pump includes a body portion with an inlet and an outlet. A bellows member is secured to the body portion and provides a dosage volume that communicates with both the inlet and outlet. Compressing the bellows member causes a sealing web thereof to con... | 10/14/2008 |
| 7377756 | Rapid exhausting mechanism in pump unit A diaphragm is provided in a pump case so as to define a pump chamber communicated with an external member having an air chamber. A motor actuates the diaphragm to introduce air to the air chamber. An exhaust valve exhausts air in the pump chamber to lower a pressur... | 05/27/2008 |
| 7374409 | Reciprocating pump A suction passage (1) and a discharge passage (2) for a to-be-transferred fluid are disposed in a pump body (3). A bottomed cylindrical bellows (6) is integrally coupled to the axial rear side of the pump body to form a closed space (7... | 05/20/2008 |
| 7346950 | Inflatable product provided with electric air pump An inflatable product includes a first chamber, a pack, and a fan and motor received in the pack. The pack has an air intake connected to the outside of the first chamber and a first air outlet connected to the inside of the first chamber. A first valve for opening ... | 03/25/2008 |
| 7331613 | Medical tubing connector assembly incorporating strain relief sleeve A connector assembly for interconnecting separate sections of tubing, e.g., medical tubing. Connector assemblies are a two-piece construction having a connector pin and a connector sleeve. The connector sleeve includes a first end, a second end, and a passageway ext... | 02/19/2008 |
| 7313837 | Inflatable product provided with electric air pump An inflatable product that includes a chamber and an electric air pump for inflating the chamber. The air pump has an air intake and an air outlet. The air intake is connected to the outside of the chamber and the air outlet is connected to the inside of the chamber... | 01/01/2008 |
| 7284970 | Fluid apparatus having a pump and an accumulator A pump liquid chamber (9) is formed inside a pump bellows (7). A suction port (18) and a discharge port (19) are formed in a wall face (4a) facing the liquid chamber (9). The suction port (18) communicates with... | 10/23/2007 |
| 7210912 | Reciprocating piston compressor having improved noise attenuation A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between the motor cap... | 05/01/2007 |
| 7207452 | Device for fastening a distribution component on a vessel neck A device is provided for fastening a distribution component on a vessel neck. The fastening device includes a retainer ring comprising a skirt defining an internal wall and an external wall, with the internal wall adapted to contact the external wall of the neck. Th... | 04/24/2007 |
| 7134850 | Fitted assembly bellows pump In a pump employing a bellows, individual members are formed from resins and pump components including a fitted assembly formed by fitting plural members with each other form a structure unit which is tightly inserted in an external cover and constrained on the oppo... | 11/14/2006 |
| 7120955 | Inflatable product provided with electric air pump An inflatable product that includes a chamber and an electric air pump for inflating the chamber. The air pump has an air intake and an air outlet. The air intake is connected to the outside of the chamber and the air outlet is connected to the inside of the chamber... | 10/17/2006 |
| 7070400 | Diaphragm pump with eliminated pump chamber dead space, and circular recesses on the reverse side of the diaphragm for improved diaphragm chamber wall adherence The diaphragm suction pump has a pump chamber (7) located in a base plate (6), the wall of said chamber extending in a conical manner from a central flat base section (7′) to the lateral edge (8). The elastic pump diaphragm (5), ... | 07/04/2006 |
| 7064472 | Electroactive polymer devices for moving fluid The invention describes devices for performing thermodynamic work on a fluid, such as pumps, compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may be transmitted to other devices, su... | 06/20/2006 |
| 7062937 | Product dispenser Embodiments of the present invention are directed to a dispensing apparatus for dispensing a flowable product. In one embodiment, the apparatus comprises a dispenser housing having a product outlet extending from the dispenser housing to dispense the flowable produc... | 06/20/2006 |
| 7039972 | Inflatable device with recessed fluid controller and modified adjustment device The application is related to inflatable devices, and, more specifically, to an inflatable device with a recessed fluid controller and improved adjustment device. In one embodiment, the application is directed to an inflatable device comprising a substantially fluid... | 05/09/2006 |
| 7029245 | Blood pumping unit, with a coplanar disk inlet valve and an annular outlet valve A unit for pumping fluid, particularly blood, is provided with an enclosure that has two half-shells and an elastic membrane fixed perimetrically to the enclosure in order to divide its space into two parts. One of the half-shells is provided with valves that are lo... | 04/18/2006 |
| 7025233 | Fluid discharge pump for discharging fluid stored inside fluid storing portion A liquid discharge pump possesses a resinous bellows material 6, a resinous inflow valve mechanism 4, a resinous outflow valve mechanism 5, a first pressing portion 11 which moves a valve portion in the outflow valve mechanism 5 to... | 04/11/2006 |
| 7013793 | Diaphragm mounting method for a diaphragm pump A diaphragm pump and method for making same, the pump having a diaphragm coupled to a wobble plate achieved using: a post (11) protruding from the wobble plate toward the diaphragm and at least partially surrounded by a collar (11a); and a pin (... | 03/21/2006 |
| 6960068 | Center valve sleeve retention system for an oscillating pump A pump (10) includes an impeller (12) positioned in a housing (11). A valve assembly (13) is positioned within a valve sleeve (25) which is carried by the impeller (12). The impeller (12) is carried by an armature ( | 11/01/2005 |
| 6945761 | Fluid apparatus having downwardly inclined lower lamella portion of a bellows A bellows that is extendingly and contractingly deformable in the axial direction is placed in a pump body and forms a liquid chamber inside the bellows. A suction portion and a discharge portion are formed in an inner bottom face of the pump body facing the liquid ... | 09/20/2005 |
| 6877965 | Mechanical bladder pump A mechanical bladder pump is provided for collecting fluid samples from a well. The pump includes an outer tubular member having a longitudinal bore, and an inner tubular member arranged within the bore of the outer tubular member. The inner and outer tubular member... | 04/12/2005 |
| 6691730 | Inflatable pad with a built-in pump The invention is an inflatable pad with a built-in pump, including an inflation unit with a laminated fringed chamber and an interior air pump assembly with an inflation and deflation channel. The pump chamber has two pieces of unidirectional membrane tub... | 02/17/2004 |
| 6689503 | Fuel cell with uniform compression device This invention is related to a fuel cell, comprising: a fuel cell stack; two end plates provided at the longitudinal, opposing ends of the cell stack; a plurality of tie rods, passing through a peripheral region of each end plate for positioning the cell ... | 02/10/2004 |
| 6685449 | Fluid apparatus including gravity induced check valves and downwardly inclined lower lamella portion of a bellows A bellows that is extendingly and contractingly deformable in the axial direction is placed in a pump body, and a liquid chamber is formed inside the bellows. A suction port and a discharge port are formed in an inner bottom face of the pump body facing t... | 02/03/2004 |
| 6612818 | Bellows type pump or accumulator It is an object of the invention to, even in the case where liquid containing a sedimenting material such as slurry is used, prevent sedimenting and aggregation from occurring in a pump. As means for attaining the object, a bellows 7 that is extendingly a... | 09/02/2003 |
| 6604919 | Fluid apparatus such as a pump or an accumulator A fluid device capable of preventing sediment from stagnating and accumulating in a liquid chamber of a pump when a transfer liquid containing sediment such as slurry is used, wherein a suction port (18) and a delivery port (19) and a diaphragm (7) are in... | 08/12/2003 |
| 6572347 | Fluid apparatus such as a pump or an accumulator The invention provides a fluid apparatus in which two or more kinds of chemical liquids can be rapidly stirred and mixed in a pump to a uniform concentration. A barrier membrane such as a bellows or a diaphragm that is reciprocally moved in the axial dire... | 06/03/2003 |
| 6547541 | Bellows type pump or accumulator It is an object of the invention to, even in the case where liquid containing a sedimenting material such as slurry is used, prevent sedimenting and aggregation from occurring in a pump. As means for attaining the object, a bellows 7 that is extendingly a... | 04/15/2003 |
| 6493940 | System and appliance for personal body care The system includes an appliance for personal body care, a pump and a holder. The appliance comprises a treatment device for carrying out a body-care treatment under the influence of a fluid. The fluid is held in the holder and can be pumped to an outlet ... | 12/17/2002 |
| 6450784 | Air-operated pumps with removable cartridges and improved manifold attachment mechanisms An air-operated pump for groundwater sampling and other applications includes a removable cartridge coupled to a manifold configured to receive air-inlet and fluid-discharge tubes from an above-ground location. The removable cartridge may be in the form o... | 09/17/2002 |
| 6435849 | Fluid pump A pump (10) comprises a pair of bladders (28,30) attached to respective opposite sides of a flexure plate (32) for pumping fluid by alternately compressing and expanding the bladders. Each bladder has at least one input connector (22, 34) with a one-way v... | 08/20/2002 |
| 6345963 | Pump with positive displacement A pump with positive displacement for pumping and entrainment of a fluid in piping (3), includes a cylinder (6) which contains deformable pumping bellows (12) which separate two pumping chambers, a driver (34, 29) which is associated with the pumping unit... | 02/12/2002 |
| 6312411 | Fluid supplying apparatus A fluid supplying apparatus having a rubber elastic film (11) with fluid contained therein, an upstream tube (30), an intermediate station (40) disposed at a distal end of the upstream tube (30) and a downstream tube (27) connected to the intermediate sta... | 11/06/2001 |
| 6287095 | Internal air pump for inflatables An internal air pump for charging inflatables with air and method therefore is disclosed which is directed to an air pump mounted internal to an inflatable device for injecting air therein. The inventive air pump is a thin-walled, lightweight, highly elas... | 09/11/2001 |
| 6251293 | Fluid dispensing system having independently operated pumps A fluid dispensing system is provided which has a first diaphragm pump, a filter connected to receive the discharge of said first pump, and an accumulator/second diaphragm pump connected to receive the discharge of said filter. Hydraulic fluids pumped by ... | 06/26/2001 |
| 6224343 | Automated, air-operated bellows pumps for groundwater sampling and other applications An air-operated pump for groundwater sampling features a corrugated bellows as opposed to the traditional bladder used for fluid collection. The preferred embodiment includes an air-supply line and a fluid-discharge line, each coupled to the pump body thr... | 05/01/2001 |
| 6197055 | Single chamber mechanical heart A single chamber mechanical heart has a movable vane journaled in the apex of the casing, an inlet port and an outlet port in each side wall of the chamber, and means for mechanically reciprocating the vane to pump blood on either side of the vane. The va... | 03/06/2001 |
