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Document Title |
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5605446 |
High viscosity material pump having valved priming piston
A reciprocable liquid pump having a priming cylinder affixed beneath the lower valve housing, and a priming piston rod affixed to the lower end of the pump piston valve assembly. A priming piston...
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5358389 |
Two-stage compression vacuum pump having valved piston and power limiting valve
This invention relates to a vacuum pump. The pump includes a pump housing (10) having upper and lower cylindrical, partly liquid filled, compression chambers (11 and 12 respectively) which are...
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5188519 |
Saturated fluid pumping apparatus
A reciprocating pump which substantially eliminates cavitation problems without imposing capacity and flow limitations to maintain a net positive suction head. The pump comprises a cylinder having...
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5147188 |
Priming piston pump piston check valve
A reciprocating priming piston pump is provided with a piston check valve which provides improved performance by minimizing the pressure drop there through. A dog-bone shaped seat is slideably...
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4740141 |
Plunger with composite retention valve
A pump is disclosed comprising a piston plunger with a valve disposed in it. The ratio of the flow area on either side of the valve is optimized.
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4708597 |
Plunger with simple retention valve
A fluid pump is disclosed having a plunger reciprocating within a working cylinder and a standing intake retention valve. The plunger comprises a stem having affixed to it a plug and a stop, a body...
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4595346 |
Waterless urinal pumps
Two flanged sleeves, closed and valved at one end, and a bonnet with two gudgeons act as a cylinder-piston mechanism for pumping. The upper sleeve is movable and spring-loaded, accepts and is...
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4591316 |
Piston with simple retention valve
A positive displacement pump particularly useful in pumping viscous fluids which may or may not contain gases, including water vapor, and/or suspended solids in which the actual flow equals the...
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4591315 |
Piston with composite retention valve
A positive displacement pump particularly useful in pumping viscous fluids which may or may not contain gases, including water vapor, and/or suspended solids in which the actual flow equals the...
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4377180 |
Non-return valve for plastic injection molding
A non-return valve for use in plastic injection molding is disclosed comprising an elongated body having a threaded end for connection to one end of a reciprocating feed screw. A first removable...
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4349044 |
Non-return device at the screwhead of screw injection molding machines
In a screw injection molding machine comprising a non-return device at the screwhead, said device comprising a pressure ring which is displaceable on the screwhead between front and rear abutments,...
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4202251 |
Generator for flow rate of pressurized fluid
A power generator comprising: body means having three chambers separated from each other by fixed fluid-tight partitions and having a central bore. Shaft means are rotatably mounted in the central...
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3830264 |
POSITIVE DISPLACEMENT FILLING MACHINE
A multi-cylinder, positive displacement, turret type filler for containers includes cam lifted, gravity descending valve, plug and piston elements in each cylinder, in one embodiment the height to...
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3628896 |
HYDRAULIC PULSE GENERATOR
The pulse generator according to the invention comprises a piston pump with a suction space and a compression space, the piston comprising two movable portions, with limited movability relative one...
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3531224 |
HAND PUMP HAVING FREE FLOATING VALVE
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3500761 |
CONTROL VALVE FOR HAND PUMPS
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3500760 |
PUMP FOR AN ATOMIZER OR THE LIKE
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3489066 |
SWAB ASSEMBLY
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3451348 |
APPARATUS FOR DRAINING DEEP UNDERGROUND STRATA
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3289607 |
Pump apparatus
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3263622 |
Pump
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3237571 |
Dispenser
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3229855 |
Dispensing apparatus
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3186354 |
Oil well pump
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3119341 |
Relay apparatus and its application
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3106895 |
Mixers
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3090323 |
Liquid sample pump assembly
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3023710 |
Fluid pumps
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3020852 |
Plunger lift for wells
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3003562 |
Sand pump
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3002466 |
Swab cup support
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2997964 |
Swab assembly
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2933050 |
Oil well pump
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2919167 |
Disc swab
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2917352 |
Swab cup
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2855859 |
Liquid-oxygen pumps
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2810353 |
Deep well pump travelling valve
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2794344 |
Pipe line sampler
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2791970 |
Pumping unit for reciprocating type pump
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