Patents in subclass Pumps/Bellows-Type Chamber
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07377756 | 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... |
05/27/2008 |
| 07374409 | 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 |
| 07284970 | 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 a pump inflow passage (5),... |
10/23/2007 |
| 07134850 | 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... |
11/14/2006 |
| 07070400 | 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), which... |
07/04/2006 |
| 07064472 | 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... |
06/20/2006 |
| 07013793 | 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... |
03/21/2006 |
| 06960068 | 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 (27), and a pocket (28)... |
11/01/2005 |
| 06945761 | 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... |
09/20/2005 |
| 06877965 | 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... |
04/12/2005 |
| 06691730 | 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... |
02/17/2004 |
| 06689503 | 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... |
02/10/2004 |
| 06685449 | 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... |
02/03/2004 |
| 06612818 | 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... |
09/02/2003 |
| 06604919 | 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... |
08/12/2003 |
| 06572347 | 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... |
06/03/2003 |
| 06547541 | 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... |
04/15/2003 |
| RE037983 | Air pump An air pump comprises a hollow pump body, at least one pulling member, an air inlet and an air outlet. The hollow pump body has air inside and consist of flexible sides and two opposite stiff ends. The air outlet is provided on the pump... |
02/11/2003 |
| 06493940 | 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... |
12/17/2002 |
| 06450784 | 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... |
09/17/2002 |
| 06435849 | 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)... |
08/20/2002 |
| 06345963 | 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... |
02/12/2002 |
| 06312411 | 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... |
11/06/2001 |
| 06287095 | 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,... |
09/11/2001 |
| 06251293 | 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... |
06/26/2001 |
| 06224343 | 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... |
05/01/2001 |
| 06197055 | 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... |
03/06/2001 |
| 6152194 | Method and an equipment for portioning liquid consignments This invention relates to a method and an equipment for portioning of liquid consignments of specific amounts and to the packaging of these small liquid consignments in mass production. The portioning is executed with a bellows, which... |
11/28/2000 |
| 6113366 | Blow-molded, one piece, two plastic apparatus for pressurizing a vessel An apparatus for pressurizing a vessel of a type including a one piece blow molded hollow member, a first end and a second end of the member being constructed of a first plastic material, the one end being adapted to be attached to and in... |
09/05/2000 |
| 6059539 | Sub-sea pumping system and associated method including pressure compensating arrangement for cooling and lubricating A pressure compensator for a sub-sea pumping system for pumping an effluent from a deep-sea wellhead comprising a topside module, a sub-sea module, and an umbilical connection between the topside and sub-sea modules. Hydraulic fluid is... |
05/09/2000 |
| 6024345 | Resin-made spring and a bellows type constant volume pump using the same The present invention relates to a resin-made spring which, although the spring is made of a resin only, has a strength similar to that of a metal-made spring, and in which the strength is hardly reduced with time and can be maintained to... |
02/15/2000 |
| 6004116 | Air pump for an inflatable body having a safety holding device An automatic air pump is built into an inflatable body. The automatic air pump includes a pump body, an air inlet and an air outlet. The pump body is automatically restorable and has an air chamber inside. The air outlet is provided on... |
12/21/1999 |
| 5975861 | Pumping assembly for use in ventilated footwear A pumping assembly for use in ventilating footwear includes a supporting plate having a first protrusion which is formed in a center portion of an upper surface thereof; front and rear check valves which are respectively formed forwardly... |
11/02/1999 |
| 5917515 | Ink jet printer having backup unit with any one or both of a pump mechanism and a nozzle cap mechanism A backup unit is provided with respect to a nozzle of a print head for printing by injecting ink, and sucks the ink from the nozzle, the backup unit including: a nozzle cap sealing the nozzle by making contiguous contact with the print... |
06/29/1999 |
| 5911884 | Contamination proof purified water dispenser and method of using same A coin-operated purified water dispensing machine has an exterior housing shaped like a kiosk for a mall. A state of the art water purification system is housed in the kiosk. A unique combination of an RO filter and a bladder type storage... |
06/15/1999 |
| 5827052 | Air pump An air pump comprises a hollow pump body, at least one pulling member, an air inlet and an air outlet. The hollow pump body has air inside and consists of flexible sides and two opposite stiff ends. The air outlet is provided on the pump... |
10/27/1998 |
| 5772413 | Bellows type pump A pump chamber for compressing a liquid such as engine fuel is formed inside a bellows, and the liquid is aspirated into the pump chamber from a suction check valve when the bellows elongates. After the liquid in the pump chamber is... |
06/30/1998 |
| 5762482 | Combined housing and air pump A combined housing and air pump has a barrel type outside vessel one end of which is closed and the other end of which is open, a barrel type inside vessel one end of which is closed and the other end of which is open, and an air suction... |
06/09/1998 |
| 5749665 | Knock-type liquid applicator An applicator includes a valve comprising a valve seat and a valve disc to cut off the outflow of a coating solution storage chamber, and disposed between the coating solution storage chamber and an application member at the front end... |
05/12/1998 |
| 5709536 | Hydro mechanical packingless pump and liquid spray system A liquid pumping, handling and spraying system for liquid compositions and especially those liquid coating compositions having a suspension of metal particulate therein which tends to settle out of suspension of metal particulate therein... |
01/20/1998 |
| 5638986 | Method and equipment for dosing small amounts of liquid quantitatively The invention relates to a method and equipment for quantitatively dosing small amounts of liquid, especially in clinical or other similar wet-chemical analyzers. The dosing employs a liquid space, the volume of which can be changed and... |
06/17/1997 |