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| Number | Title | Issue Date |
| 8152479 | Liquid pressure-feed device A liquid pressure-feed device is provided wherein, even with a third shaft disposed between a pivot shaft and a second shaft, a sub-arm positioned between the pivot shaft and the second shaft does not obstruct movement of the third shaft. A snap mechanism has a pivo... | 04/10/2012 |
| 7704053 | Pivoting mechanism for use in a high temperature steam distribution system A pivoting mechanism for use in a high temperature steam distribution system includes an input member operative to move between a low level position and a high level position. A compression spring having a first end and a second end is also provided. The first end o... | 04/27/2010 |
| 7648345 | Liquid pump with multiple chambers and control apparatus Pumps for Steam Condensates and other Liquids, include receivers that may be connected firstly to the liquid source, and after filling are then pressurised to discharge the liquid to a transfer line, or to a vessel at a higher pressure than that of the source. The u... | 01/19/2010 |
| 7520731 | Gas pressure driven pump having dual pump mechanisms The present invention is directed to a gas pressure driven liquid pump having a pump body, liquid inlet, liquid outlet, a pair of pump mechanisms each including a float, and a baffle within the pump body creating two chambers within the pump body. A separate pump me... | 04/21/2009 |
| 7360545 | Dishwasher A dishwasher having an improved valve assembly is disclosed. The dishwasher includes a housing, a tub provided in the housing, an injector assembly for injecting water onto tableware positioned in the tub, and an inlet valve assembly. The inlet valve assembly includ... | 04/22/2008 |
| 7070394 | Gas pressure driven fluid pump having pilot valve controlling disc-type motive and exhaust valves A gas pressure driven fluid pump comprising a pump tank having a liquid inlet and a liquid outlet. A float, carried within the interior of the pump tank, is operable to move between a low level position and a high level position. A snap-acting valve is operatively c... | 07/04/2006 |
| 7048513 | Gas pressure driven fluid pump having compression spring pivot mechanism and damping system A gas pressure driven fluid pump having a pump tank with a liquid inlet and a liquid outlet. A float assembly is carried within the interior of the pump tank and is movable between a low level position and a high level position. A compression spring is connected bet... | 05/23/2006 |
| 7004728 | Gas pressure driven fluid pump having an electronic cycle counter and method A gas pressure driven fluid pump having an electronic cycle counter. The pump has a pump tank with a liquid inlet and a liquid outlet. A switching mechanism is operative within the pump tank for switching to exhaust porting when the fluid level within the pump tank ... | 02/28/2006 |
| 6946071 | Fuel feeding device and fuel filter used for the device The present device is a fuel supply device to pressurize and supply fuel F which is stored in a fuel tank 10, which comprises a fuel supply pipe 11 which forms a supply passage for the fuel F, a fuel filter 12 to filter the fuel F disposed at th... | 09/20/2005 |
| 6935844 | Gas pressure driven fluid pump having magnetic valve control mechanism and method A gas pressure driven fluid pump comprising a pump tank having a liquid inlet and a liquid outlet. A float, carried within the interior of the pump tank, is operable to move between a low level position and a high level position. A snap-acting valve control mechanis... | 08/30/2005 |
| 6602056 | Steam driven pump A pump has a housing including at least one fluid channel; a motive fluid inlet port; a suction fluid inlet port; and a discharge port. The pump also includes a venturi disposed in the fluid channel of the housing. The venturi is connected by way of the f... | 08/05/2003 |
| 6599096 | Steam driven pump A pump includes a valve mechanism having an opened position and a closed position. The pump further includes a spring assisted mechanism for selectively moving the valve mechanism between the opened position and the closed position, and a fluid detector f... | 07/29/2003 |
| 6572340 | Pressure motive pump assembly comprising a float, an over center linkage mechanism, and a pair of positive stop or abutment means for ensuring over center tripping action A motive pump assembly comprising a hollow housing having an inlet valve and outlet valve for a fluid to be pumped, an inlet valve for a motive fluid operatively between open and closed positions, a vent valve and means for simultaneously opening and clos... | 06/03/2003 |
| 6244828 | Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve A combination pump and trap is disclosed which includes a snap-over mechanism useful for small floats with little buoyancy. The snap-over mechanism has a geometry in which the distance between the float or compression arm pivot point and the pivot for the... | 06/12/2001 |
| 6244829 | Liquid forced-feed apparatus A liquid forced-feed apparatus has a built-in float in a hermetic vessel provided with a working fluid inlet port, a working fluid discharge port, a forced-feed liquid inlet port, and a forced-feed liquid discharge port. A snap mechanism which is actuated... | 06/12/2001 |
| 6227816 | Hydraulic delivery device The invention relates to a hydraulic delivery device with a displacement unit which delivers a medium from a suction connection under output pressure to a pressure connection, connectable with a consumer, and under consumer pressure, and a regulating devi... | 05/08/2001 |
| 6099260 | Pump trap assembly having multiple pivot axes A pump trap assembly with multiple pivot axes. The pump trap assembly includes a mounting bracket for mounting the trap assembly to a structure. A first pivot arm having a length is pivotally mounted to the mounting bracket about a first pivot axis. A sec... | 08/08/2000 |
| 6015267 | Liquid forced-feed apparatus having a working fluid dispersing device A cylindrical perforated member is mounted between a working fluid inlet port and a hermetic vessel that a working fluid supplied into the hermetic vessel at the working fluid inlet port will not directly contact the forced-feed liquid surface. At the wor... | 01/18/2000 |
| 5941691 | Overcenter mechanism for a pressure powered pump A pressure powered pump has valve members 18, 20 operated by a float acting through an overcenter mechanism 24. The overcenter mechanism has a valve actuating lever 36, on which are provided actuating pins 46, 48 for engagement with the respective valve m... | 08/24/1999 |
| 5938409 | Gas powered fluid pump with exhaust assist valve A gas powered pump tank is alternately filled with liquid such as water at low pressure, and then emptied by gas pressure such as from pressurized steam. An auxiliary exhaust assist valve opens at a threshold pressure after switching from the pumping phas... | 08/17/1999 |
| 5934881 | Snap action float valve assembly with reversible plate spring for liquid feeding device A liquid forced-feed apparatus, such as a steam trap or pump-trap combination, simplified in construction by decreasing the number of component parts, and capable of switching a change-over valve smoothly with reduced buoyancy. A float, a change-over valv... | 08/10/1999 |
| 5865603 | Multi-compression coil springs for a liquid pump A snap-over toggle linkage valve actuating mechanism for alternately opening and closing a gas inlet valve and a gas outlet valve utilizes a plurality of stiff compression coil springs of an axial length preferably less than four times the coil turn diame... | 02/02/1999 |
| 5755560 | Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve A combination pump and trap is disclosed which includes a snap-over mechanism useful for small floats with little buoyancy. The snap-over mechanism has a geometry in which the distance between the float or compression arm pivot point and the pivot for the... | 05/26/1998 |
| 5655888 | Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve A combination pump and trap is disclosed which includes a snap-over mechanism useful for small floats with little buoyancy. The snap-over mechanism has a geometry in which the distance between the float or compression arm pivot point and the pivot for the... | 08/12/1997 |
| 5641272 | Enhanced lever mechanism for controllerless pneumatic pump In float actuated pump having a rod and lever actuation from the float, an improved connect between the rod and lever is disclosed enabling valve opening substantially free of constraint by the rod and attached fittings. Such arrangement also enabling exh... | 06/24/1997 |
| 5445501 | Snap action float valve assembly for liquid feeding device A device for feeding liquid under pressure comprises a vessel having an operating fluid inlet, an operating fluid outlet, an inlet opening for the liquid to be fed under pressure and an outlet opening for the liquid to be fed under pressure; a float dispo... | 08/29/1995 |
| 5141404 | Pump apparatus A pump apparatus for pumping undergound fluids from a well. The pump includes inner and outer chambers, and a float slidable within the outer chamber. A source of compressed air is directed to a valve on the pump. The valve controls the flow of the compre... | 08/25/1992 |
| 5141405 | Leak proof, preloaded, high-biasing force float-operated over-center valve actuating mechanism A snap-over toggle linkage valve actuating mechanism for alternately opening and closing a gas inlet valve and a gas outlet valve, has a pair of spring preload arms pivotably mounted to a fixed mainframe within a sealed pressure vessel for pivoting about ... | 08/25/1992 |
| 4395200 | Downhole oil well pump An automatic gas operated downhole fluid pump having an elongated cylindrical chamber for receiving fluid and having a concentrically mounted cylindrical float which is connected to a valve having an actuator biased and retained in either an opened or clo... | 07/26/1983 |
| 3972650 | Sewage system A sewage system wherein a sewer line for delivering sewage to a discharge point and a compressed air line extend adjacent to each other. A pluraity of tanks at spaced points and serving to collect sewage from different sources are connected to the sewer l... | 08/03/1976 |
