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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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RE34957 |
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...
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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...
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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...
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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...
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3905724 |
Pneumatic pump
A pneumatic pump comprising a vessel with inlet and outlet liquid ports. With a gas exhaust port open, the vessel is filled with the liquid in which it is immersed and a rising float operates a...
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3402614 |
Snap action toggle assemblies
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3242873 |
Automatic bilge pump
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