Patents in subclass Pumps/Ball Type
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07377757 | Fluid pump with enhanced seal The invention concerns a fluid pump with a cylinder, piston and check valve for compressing the fluid having a high-pressure seal for precluding leakage of pressurized fluid. Any leakage from the high-pressure seal feeds back into an... |
05/27/2008 |
| 07296981 | Pump having independently releasable ends In certain embodiments, a pump includes a first end section having a fluid inlet and a fluid intake valve, a second end section having a fluid outlet, and a midsection disposed between the first and second end sections, wherein the... |
11/20/2007 |
| 07025134 | Surface pulse system for injection wells The present invention relates to petroleum recovery operations, and more particularly, to the use of pulse technology to enhance the effectiveness of waterflooding operations. The systems of the present invention generally comprise an... |
04/11/2006 |
| 06843645 | Cooling system for a magnetic pump A magnet pump includes a synthetic resin casing, divided into a front casing and a rear casing and configured to internally form an impeller housing chamber and a magnet can housing chamber contiguous thereto, having an inlet and an... |
01/18/2005 |
| 06837694 | Hydraulic pump unit with orifice plate for vehicle brake control system A hydraulic pump unit for vehicle brake control system comprising a pump housing, a cylinder received in a receiving hole formed in the pump housing. The cylinder has a bottom portion and is provided at the bottom portion with an outlet... |
01/04/2005 |
| 06830441 | Valve for downhole pump A downhole pump having a barrel with a reciprocating plunger therein has at least one valve. The valve has a cage, a seat and a ball. The cage has a passageway extending between two ends, with the passage including a ball chamber. The... |
12/14/2004 |
| 06746222 | Bottom discharge valve A bottom discharge valve is located on the bottom of the pump barrel just above the standing valve. The externally threaded pin end of the standing valve threads into the lower internally threaded portion of the bottom discharge valve.... |
06/08/2004 |
| 06736618 | Pump for easy attachment to bicycle A pump includes a cylinder, a tube, a hollow piston, a nozzle, a hollow handle and an elastic element. The tube is partially and movably inserted in the cylinder. The hollow piston is in fluid communication with the tube and movably... |
05/18/2004 |
| 06652245 | Piston pump for hydraulic vehicle brake system The invention relates to a piston pump for a hydraulic, slip-controlled vehicle brake system. The piston pump has a piston, which is inserted with a part of its length into a sleeve. A tubular filter that encompasses the piston is... |
11/25/2003 |
| 06648614 | Piston pump The present invention relates to a piston pump, which is in particular appropriate for the pressure fluid delivery in electronically controlled brake systems, including a housing, a suction valve, a pressure valve, and a pump piston that... |
11/18/2003 |
| 06641375 | Pneumatically operated oil pump A pneumatically operated oil pump comprises an outer tube for extending into an oil tank and a sucking tube moveably arranged within the outer tube. The sucking tube includes one-way valve establishing an airtight arrangement with respect... |
11/04/2003 |
| 06558141 | Packing assembly and reciprocating plunger pump incorporating same A packing assembly for sealing a space between a pump plunger and a pump body of a reciprocating plunger pump with a plunger having a pumping end with an outer perimeter. At least one seal is disposed around the pumping end of the plunger... |
05/06/2003 |
| 06537042 | Positive-displacement pump A positive-displacement pump (lifting pump) comprises a pump housing with a pump chamber having an inlet and an outlet passage controlled by an outlet check valve; a displacement member which delimits the pump chamber in one direction of... |
03/25/2003 |
| 06514056 | Piston pump A piston pump for a slip-controlled, hydraulic brake system of a vehicle. A hollow piston is provided with an inner piston seal that has a sealing lip. During an upward reciprocating motion of the piston, fluid can flow past the sealing... |
02/04/2003 |
| 06497561 | Downstroke sucker rod pump and method of use A fluid pumping apparatus for pumping fluids from a well, through a production string comprising: a tubular pump plunger concentrically disposed in a sliding and sealing fit with a tubular pump barrel. A cylindrical polished rod, the... |
12/24/2002 |
| 06481987 | Travelling valve for a pumping apparatus An improved travelling valve has a ball which is positioned on a seal stem, so that the ball is reliably centered when seated on the valve seat, reducing damage to the ball and seat from improper seating and providing increased efficiency... |
11/19/2002 |
| 06474963 | Piston pump having a hollow piston The invention relates to a piston pump (10) for a hydraulic slip-controlled vehicle brake system. In order to reduce a structural length of the piston pump (10), the invention proposes embodying the piston (16) of the piston pump (10) as... |
11/05/2002 |
| 06471496 | Piston pump for a vehicle brake system To enable economical production of a piston for a piston pump, the piston is made from a tubular deformed part and a closure plug, which is press-fitted with a protrusion into the deformed part. The piston has the advantage that the... |
10/29/2002 |
| 06394770 | Piston pump The invention relates to a piston pump for a vehicle brake system, in particular an electrohydraulic vehicle brake system. To improve the aspiration performance of the piston pump when the brake fluid is viscous at low the invention... |
05/28/2002 |
| 06368084 | Downstroke sucker rod well pump Fluid pumping apparatus for pumping fluids from a well comprising a downhole pump disposed near the lower end of a production string and including a tubular pump barrel and a tubular pump plunger concentrically disposed in the pump barrel... |
04/09/2002 |
| 06361295 | Means for connecting a closure part to a bush of a piston pump for a brake system A piston pump for a hydraulic brake system of a vehicle with slip control. The piston pump has a piston which is received in a bush that is inserted into a cylinder bore of a pump housing that is closed in pressure-tight fashion by a... |
03/26/2002 |
| 06341950 | Piston pump The invention relates to a piston pump, which is intended for use as a return pump for a slip-controlled hydraulic vehicle brake system. To simplify the manufacture of a piston of the piston pump, the piston includes a thin sleeve. |
01/29/2002 |
| 06340295 | Piston pump for a vehicle brake system having radial play between a closure element and a bush A piston pump intended especially for use in a slip-controlled hydraulic vehicle brake system. The piston pump is inserted into a cylinder bore, the piston pump has a piston, a bush, and a closure element that tightly closes the cylinder... |
01/22/2002 |
| 6334760 | Pump and filter assembly for low viscosity fluids A hand operated pump and filter assembly for transferring low viscosity fluids, such as hydraulic oil, from a supply container to a machine requiring the fluid, and for filtering the fluid. The pump is a combination vacuum and... |
01/01/2002 |
| 06334760 | Pump and filter assembly for low viscosity fluids A hand operated pump and filter assembly for transferring low viscosity fluids, such as hydraulic oil, from a supply container to a machine requiring the fluid, and for filtering the fluid. The pump is a combination vacuum and... |
01/01/2002 |
| 06302663 | Piston pump The invention relates to a piston pump for a slip-controlled, hydraulic vehicle brake system. In order to be able to simply and inexpensively produce the piston pump as a stepped piston pump, the invention embodies a piston as a tubular... |
10/16/2001 |
| 06283148 | Standing valve with a curved fin A valve for use in a sucker rod actuated fluid pump including a traveling valve assembly and a standing valve assembly within which a vortex is believed to be created to draft the ball check valve from its seat during the stroke of the... |
09/04/2001 |
| 06273690 | Downhole pump with bypass around plunger The downhole pump has a barrel with a reciprocating plunger therein. The barrel has a first one-way valve, while the plunger has a second one-way valve. A barrel chamber is formed between the two one-way valves. The barrel chamber expands... |
08/14/2001 |
| 06224352 | Piston pump in a brake system of a vehicle A piston pump for a slip-controlled hydraulic brake system for a vehicle. A tubular filter is mounted on a bush of the piston pump; the filter has a filter ring that forms a guide ring and is spaced apart from the bush and axially guides... |
05/01/2001 |
| 06212997 | Reciprocating fluid pumps with chromium nitride coated components in contact with non-metallic packing and gasket materials for increased seal life Chromium nitride coating of machine components such as reciprocating pump plungers for continuous sliding contact with non-metallic packing and gasket materials greatly increases the performance life of fluid seals. In an air driven... |
04/10/2001 |
| 06212999 | Automatic throat packing torque clip A reciprocating piston pump is provided with an automatic throat positive packing torque clip thereby providing consistent and extended pump life. |
04/10/2001 |
| 06183225 | Angled flow ports for reciprocating piston pump A reciprocating piston pump is provided with angled flow ports to provide enhanced flow and reduced wear characteristics. |
02/06/2001 |
| 6113365 | Piston pump The invention relates to a piston pump for a slip-controlled hydraulic vehicle brake system. The piston pump has a piston which is driven to execute a stroke motion, and two check valves as an inlet valve and outlet valve for controlling... |
09/05/2000 |
| 6109896 | Piston pump A piston pump for pumping hydraulic fluid, especially for vehicle brake systems having a stepped piston axially displaceable in a pump space. The stepped piston in order to reduce the production costs comprises a cylinder of substantially... |
08/29/2000 |
| 6099274 | Pump to surface pump A reciprocating pump is provided for pumping subterranean fluids containing fine solids to surface. The pump comprises a pump barrel, piston and piston rod. The piston rod is suspended form reciprocating production tubing. The barrel is... |
08/08/2000 |
| 5992452 | Ball and seat valve assembly and downhole pump utilizing the valve assembly Disclosed is a system used to increase the wear life of ball and seat valves and of ball and seat valves utilizing a piston mechanism to unseat the ball from the seat, which during operation, create turbulent flow within the valve... |
11/30/1999 |
| 5993179 | Housing block with a piston pump for a brake system The invention relates to a housing block into which a piston pump is inserted. For sealing off and fixing a cylinder of the piston pump in the housing block, the cylinder is provided with a radially outward-protruding annular shoulder,... |
11/30/1999 |
| 5988997 | Piston pump having a hardened piston with a wavy profile A piston pump for delivering hydraulic fluid for ABS brake systems having at least one pump piston. The pump piston is driven to execute an axial stroke motion and which, with a sliding face embodied on its circumference, slides against... |
11/23/1999 |
| 5984646 | Hydraulic motor for use with airless paint sprayer system A reciprocating hydraulic motor and pump assembly includes a cylinder and a piston disposed for reciprocation in the cylinder. The piston includes a stem having a bore extending longitudinally in the stem and a piston head connected to... |
11/16/1999 |
| 5924353 | Durable oil well pump of fitting ceramics cylinder A durable oil well pump having fitted ceramic cylinders. Two metal retainers are fitted at two ends of the ceramic liner barrels. A cement or adhesive, which is resistant to pressure and temperature is placed in the annular clearance... |
07/20/1999 |
| 5915927 | Reciprocating pump for generating fluid pressure A plunger pump includes a piston which is driven for reciprocatory motion and associated with a check valve. A space within a cylinder is partitioned by a piston 1p into a first space A which communicates with a discharge port 1ep and a... |
06/29/1999 |
| 5897303 | Blind pore piston pump with internal valve and stroke limiting spring winding The invention relates to a piston pump, having a piston that has a longitudinal bore, that includes a valve seat face upon which a valve closing body is pressed by a valve spring. The valve spring is a helical compression spring, whose... |
04/27/1999 |
| 5893708 | Rotating piston for ball and seat valve assembly and downhole pump utilizing said valve assembly Disclosed is an assembly for unseating a seated traveling valve ball, and pumps utilizing such an assembly. The assembly generally includes a tubular member having therein a piston with an actuator for engaging the ball. Mechanical... |
04/13/1999 |
| 5752814 | Plunger and seal for well pump A plunger or traveling valve and seal for a well pump and an oil well pump in particular, which plunger includes a mandrel of selected length, at least one plastic sleeve fitted with at least one metal insert mounted on the mandrel for... |
05/19/1998 |
| 5743336 | Pump-packing device for down-hole well arrangements In a down-hole well arrangement, an insert pump having a pump barrel is provided, the pump barrel having a top end and a bottom end. Tubing for the down-hole well is also provided, the tubing including one or more tubing members, a... |
04/28/1998 |
| 5720600 | Sucker rod pump A sucker rod pump comprises a cylindrical housing (1) having a suction valve (3), a hollow plunger (2) with a discharge valve (18) capable of reciprocating along the cylindrical housing (1) and at least two stationary sealing devices (7)... |
02/24/1998 |
| 5647737 | Reciprocating pump with simplified seal replacement A reciprocating pump, comprising a reciprocating motor having a housing body which includes an open first end and a base at the first end, the base substantially closes the first end of the motor housing. The motor also includes a... |
07/15/1997 |
| 5642990 | Traveling valve ball displacing tool A downhole pump is reciprocated subsurface for the purpose of lifting fluid from an underground borehole to the surface or other suitable storage location. As the fluid being pumped may contain gas, the efficiency of the pump may decrease... |
07/01/1997 |
| 5636687 | Rod pull down tool In a well using a lift pump operated by a tension string from the surface, the down stroke of the pump is accelerated by providing a plunger element secured to the pump operating string. The plunger has an upper end exposed to the high... |
06/10/1997 |
| 5618169 | Water well pump cylinder components Water well pump plunger efficiency is improved by providing a pair of upwardly open outwardly flared wall cups surrounding a pump plunger and supported in superposed relation by a sleeve in the lowermost cup. A fluid passageway through... |
04/08/1997 |