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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 7661937 | Axial piston machine and a control plate for an axial piston engine The invention relates to a control plate (20) for an axial piston engine (1). The inventive control plate (20) comprises a through hole (38) and a radial internal edge of said control plate (20) embodied in the form of a centering ... | 02/16/2010 |
| 7390176 | Multi-port suction reed valve with optimized tips A reed valve having a plurality of tips and associated recesses is provided as a compressor suction valve with each valve tip coacting with a suction port. The recesses are located in the housing structure defining the cylinder of the compressor and are spaced a dis... | 06/24/2008 |
| 7329105 | Multi-directional pump A multi-directional pump is disclosed generally comprising a housing with inlet and outlet ports, a pumping device disposed therein, a first chamber in fluid communication with the inlet port, and a second chamber in fluid communication with the first chamber. The f... | 02/12/2008 |
| 7318709 | Pump valve assembly A valve assembly is disclosed generally comprising first and second valve plates mounted between the housing for a pump mechanism and a cover, the first plate having flexing flaps corresponding to apertures in the second plate, and the second plate having flexing fl... | 01/15/2008 |
| 7313998 | Motor/pump unit, particularly for anti-skid vehicle brake systems The present invention relates to a motor-pump unit for slip-controlled vehicle brake systems, including an accommodating member for hydraulically active elements comprising at least one working piston, which is arranged and guided in the accommodating member so as t... | 01/01/2008 |
| 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 |
| 7056105 | Unit utilizing current to control reciprocation for pushing fluids A unit utilizing current to control reciprocation for pushing fluids, including a chamber, a magnet, a coil connected with a circuit, a first inlet, a first outlet, a second inlet, a second outlet, a first valve and a second valve. The magnet is slidably disposed in... | 06/06/2006 |
| 7033148 | Electromagnetic pump An electromagnetic micropump for pumping small volumes of liquids and gases comprises a magnetic actuator assembly, a flexible membrane and a housing defining a chamber and a plurality of valves. The magnetic actuator assembly comprises a coil and a permanent magnet... | 04/25/2006 |
| 6955531 | Pump for inflating and deflating an inflatable object with a rotatable nozzle assembly A pump is capable of inflating and deflating an inflatable object. The pump includes a cylinder, a piston and a nozzle. The cylinder defines an outlet through which air can only flow into the cylinder and an inlet through which air can only flow from the cylinder. T... | 10/18/2005 |
| 6739842 | Pump A pump includes a base, a tubular portion formed on the base and with an upper end and a lower end, a pressure gauge communicated with the tubular portion near the upper end, a cylinder communicated with the tubular portion near the lower end, a piston movably recei... | 05/25/2004 |
| 6736613 | Acceleration fuel pump having a resilient check valve member for a combustion engine carburetor An acceleration fuel pump for use with a combustion engine carburetor is an integral part of the carburetor body and provides an additional flow of fuel to the fuel-and-air mixing passage of the carburetor during acceleration of the engine. The acceleration fuel pum... | 05/18/2004 |
| 6705846 | Piston pump In a piston pump, in particular for pressure medium delivery in slip-controlled hydraulic brake systems, including a suction valve and a delivery valve, external preassembly and possibilities of external testing of the delivery and suction valves result from providi... | 03/16/2004 |
| 6626647 | Radial piston pump The radial piston pump possesses a pump body with a plurality of cylinder borings for the reception of pump pistons which can be driven by a cam. The cylinder borings are closed by valve plugs in which pressure passages are provided. In the pressure passa... | 09/30/2003 |
| 6497562 | Piston pump In a piston pump (1), in particular for pressure medium delivery in slip-controlled hydraulic brake systems, including a suction valve (82) and a delivery valve (81), external preassembly and possibilities of external testing of the delivery and suction v... | 12/24/2002 |
| 6419467 | Structure for suction valve of piston type compressor In the suction valve structure of the piston type compressor of the present invention, the primary suction valve 38 is a flexible deforming valve composed of a deforming section 381, which is supported and bent by a cantilever method, and a closing sectio... | 07/16/2002 |
| 6231315 | Compressor having a value plate and a gasket A compressor includes a cylinder block and a housing connected to the ends of the cylinder block. A suction chamber and a discharge chamber are defined in the housing, respectively, and the chambers are divided by a bulkhead, or wall. A valve plate, which... | 05/15/2001 |
| 6095775 | Single-acting manual pump for lubrication line, with deformable valve element A single-acting manual pump for feeding lubricant to metering units provided in a lubrication line, of the type comprising a body (10) housing a piston (1) movable within a chamber (2) against the action of elastic means (3), and unidirectional valve mean... | 08/01/2000 |
| 6022199 | Reciprocating compressor A reciprocating compressor is provided. Compression chambers are formed on at least one end of pistons slidably received within respective cylinder bores of a cylinder block. A cylinder head is secured to the cylinder block and has a high-pressure chamber... | 02/08/2000 |
| 5848881 | Liquid drug infusion pump A pump including a first portion (2) with a metering cylinder (3) containing a plunger (4), and a second portion (7) engaging the surface of the first portion (2) in which the outlet of the cylinder (3) is located, and comprising a recess (10) located opp... | 12/15/1998 |
| 5848880 | Axial valve arrangement for a high pressure plunger pump A high-pressure plunger pump assembly, in particular for working pressures above 2000 bar, includes a housing, a cylinder received in the housing and defining a working space which has an expanded area along a section thereof for receiving a sleeve therei... | 12/15/1998 |
| 5785508 | Pump with reduced clamping pressure effect on flap valve In a diaphragm pump flap valves accommodated in a pump head are provided which have a valve disk in which are situated valve flaps (14) circumscribed by partial ring-shaped recesses. These are respectively flexibly connected with the remaining valve disk ... | 07/28/1998 |
| 5709535 | Multi-cylinder reciprocating compressor having improved discharge valve stopper assembly A reciprocating compressor includes a cylinder block having a plurality of compression chambers formed therein and a cylinder head secured to the cylinder block and having a high-pressure chamber formed therein. A first member is arranged between the cyli... | 01/20/1998 |
| 5697770 | Pump using a single diaphragm having preformed oppositely directed bulges forming inlet and outlet valve closing bodies A pumping device including a common pumping diaphragm with two stop valves each of which are equipped with a valve closing member that alternately assumes an open position and a closed position during the pumping operation. The pumping device according to... | 12/16/1997 |
| 5632607 | Piston and valve arrangement for a wobble plate type pump A pump comprising a housing including first and second housing sections and a gasket between the first and second housing sections. The housing has a first pumping chamber, an inlet, an inlet passage in the housing leading from the inlet to the pumping ch... | 05/27/1997 |
| 5562122 | Fluid pressure biased fluid valve device A fluid valve device for on-off control of fluid flow through a passage extending between two fluid ports (12, 15) and including a valve seat (17A) comprises a hollow valve member (21) which is movable into and out of sealing engagement with the valve sea... | 10/08/1996 |
| 5503538 | Infusion pump for medicinal liquids An infusion pump includes at least one cylinder-and-piston intake device for a liquid in a container and for dispensing the liquid into a connection link to the patient. In a preferred embodiment, the pump includes at least one metering cylinder containin... | 04/02/1996 |
| 5411380 | High pressure homogenizing pump having removable check valve modules A homogenizer includes a homogenizing valve assembly mounted to a pump block. A set of one or more pump chambers is formed in the block and a plunger is positioned in each chamber. Each pump chamber is formed along a substantially horizontal pump axis and... | 05/02/1995 |
| 5059101 | Fluid end A fluid end assembly for a plunger pump of the type having a power end to which fluid end assemblies are attached, the fluid end assembly having a plurality of cylinders, a valve housing attachable to one end of the cylinders, clamps for clamping the cyli... | 10/22/1991 |
| 4776776 | Small pump valve plate assembly An improved valve plate assembly for use with a reciprocating piston fluid pump such as a low capacity air compressor. A resilient rubber valve molding is positioned over a plate defining inlet and outlet ports for forming a seal between the plate and a c... | 10/11/1988 |
| 4767291 | Single valve pump A down-hole pump adapted for operation in connection with a string of tubing and a string of reciprocating sucker rod. A pump includes a cylindrical housing connectable to the tubing and connected to a pump barrel; a piston rod connected to a piston dispo... | 08/30/1988 |
| 4646781 | Diaphragm valve for medication infusion pump A valve, suitable for use in small medical devices and which can readily be made of medical grade materials, comprises an elastic diaphragm stretched over a protruding surface, preferably of spherical or convex shape. The diaphragm has a ring of holes con... | 03/03/1987 |
| 4573888 | Fluid pump This invention relates to an improved fluid pump. The pump is of the type, wherein a reciprocating motor acts in concert with supply and exhaust valves to pump fluid from a source to its destination. In the preferred embodiment, the motor comprises a reci... | 03/04/1986 |
| 4545735 | Diaphragm pump having a valve sheet with inlet and outlet flaps and having antisiphoning capability during pump shutdown The pump has a pumping chamber with a deflectable diaphragm member and fluid inlet and outlet passages. A deflectable valve flap is disposed across the fluid inlet passage and another flexible valve flap is disposed across the fluid outlet passage. Moveme... | 10/08/1985 |
| 4489861 | Manual liquid dispensing device This invention relates to a manual liquid dispensing device for spraying liquid by squeezing the trigger thereof. An adapter is inserted into a cylinder bore forming a pressurizing chamber. A piston is slidably mounted within the adapter. This adapter has... | 12/25/1984 |
| 4468222 | Intravenous liquid pumping system and method Intravenous Fluid Pumping System having a controller and a pump controlled by the controller. The controller has a sealed chamber with a flexible membrane covering a portion thereof. An incompressible fluid is disposed in the chamber. A piston member is m... | 08/28/1984 |
| 4437490 | Reed valve assembly A reed valve assembly is provided with a reed sandwiched between two base members, e.g. a valve plate and a cylinder head of a compressor. The reed is clamped between the two members at a central part whereby both free ends of the reed can flex. The base ... | 03/20/1984 |
| 4379681 | Fluid pump with dual diaphragm check valves A fluid pump has an inlet, an outlet, a pumping chamber, pumping means, and inlet and outlet check valves. In one embodiment each check valve is formed by a flexible member positioned between a pair of relatively rigid members, the latter each having an o... | 04/12/1983 |
| 4370107 | Spring biased fluid pump A fluid pump having a fluid inlet, a fluid outlet, a pumping chamber, inlet and outlet check valves, and a pumping device that draws fluid into the pumping chamber and pumps fluid from the pumping chamber. The pumping device includes a pair of springs, a ... | 01/25/1983 |
| 4310107 | Manually operated, trigger actuated diaphragm pump dispenser A manually operated dispensing device for a container holding a quantity of liquid is disclosed. The device has an internal chamber and a flexible, elastomeric diaphragm-like cover on at least one side of the chamber in a component retaining body. Associa... | 01/12/1982 |
| 4305702 | Pump with expandable chamber A pump for pumping an incompressible liquid comprising a housing having an inlet and an outlet, a pumping chamber in said housing, and a positive displacement pumping member mounted for movement in the pumping chamber. The housing has an inlet passage whi... | 12/15/1981 |
