Class 417/434 - INCLUDING SEPARATE PORT ON NONCYCLIC VALVE FOR DRAINING PUMP PORTION

Subclass of Class 417 - Pumps
Definition: Apparatus in which the pump fluid is liquid, the pump including
No. of patents: 40
Last issue date: 08/12/2008

Number	Title	Issue Date
7410348	Multi-speed compressor/pump apparatus A pumping/compressing apparatus for use in a fluid handling system transferring a fluid from one location, e.g., a tank, to another location or to an end use is provided. The apparatus basically includes a motor and a multistage, e.g., two stage, device including at...	08/12/2008
7264317	Hydraulic unit A hydraulic unit for a hydraulic regulation device, in particular for slip-controlled motor vehicle brake systems, includes several hydraulic, mechanical and/or electrically operable functional elements arranged at an accommodating member, such as accumulation eleme...	09/04/2007
7144232	Water well pump The present invention contains a one-way standing valve holder and a one-way traveling valve holder. Contained within a shell of the standing valve holder are a nipple at the upper end and an intake tube at the lower end. A piston rod extends down from the earth's s...	12/05/2006
7097435	Device for draining and recharging a hermetic compressor with oil A method of draining and recharging a hermetic compressor with oil using a drainage assembly mounted in the compressor housing. The assembly includes a tube having a valve mounted at one end thereof with the second end of the tube located in the oil sump of the hous...	08/29/2006
7086473	Submersible pumping system with sealing device A submersible pumping system includes a pump assembly that is connected to a motor assembly. The pump assembly includes a pump intake having an intake hole, a pump housing connected to the pump intake and a pump discharge head connected to the pump housing. An intak...	08/08/2006
7017212	Support pillow with flaps and methods A support pillow comprises a pillow body having a medial region and two opposing arms a pillow body having a medial region and two opposing arms that define an outer periphery and an inner periphery, wherein the inner periphery defines a generally open well. At leas...	03/28/2006
6527520	Ribbon drive pumping with centrifugal contaminant removal A ribbon drive pumping apparatus and method for liquids is disclosed wherein the inherent centrifugal separation that occurs adjacent the pump inlet is used to remove contaminants. The pump has an extended tube having an intake at a first end and an outle...	03/04/2003
6520755	Fluid-moving device with integrated valve A fluid-moving device with an integrated valve is disclosed. The device includes a housing defining a suction chamber and at least one internal passageway formed inside the housing. A first end of the internal passageway opens to the suction chamber and a...	02/18/2003
6422835	Compact, portable combination dust blowing and swabbing apparatus A combination dust blowing and swabbing apparatus is provided having a cylindrical housing having an outer surface and a fan exit nozzle and a fan housed within the fan exit nozzle. A fan inlet nozzle formed by and penetrating the outer surface of the hou...	07/23/2002
6386836	Dual gerotor pump for use with automatic transmission A dual gerotor pump is used for an automatic transmission. A dual gerotor pump which is driven by a central drive mechanism has a first chamber which continuously provides transmission fluid to the automatic transmission. The pump also has a second pumpin...	05/14/2002
6113364	Pump unit for a slip-controlled, hydraulic brake system of motor vehicles A pump housing, including a pump unit having a collection chamber that receives leaking brake fluid. In the installed position of the pump unit, an outflow bore leads downward from the collection chamber to the ambient air. A body which in one direction a...	09/05/2000
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 the fluid flow th...	09/05/2000
6059548	Hand pump system for a traction device A hand pump system for pressurizing and de-pressurizing a pneumatic cylinder on a traction device. The hand pump system includes a hand pump having a pump head with a vent hole. A flow control assembly has a stem portion extending into the pump head. The ...	05/09/2000
5699859	Well water recirculation valve and method of manufacturing thereof A well water recirculation valve comprising an in-line check valve and a calibrated orifice through the body of the check valve. The orifice communicates through the body of the check valve into an unchecked end thereof. In use in a water well having a su...	12/23/1997
5607288	Scroll machine with reverse rotation protection A scroll machine has an intermediate pressure cavity which is operable to open and close a leakage path between the discharge zone and the suction zone of the scroll machine. The leakage path is closed when intermediate pressurized fluid is supplied to th...	03/04/1997
5591014	Scroll machine with reverse rotation protection A scroll machine has an intermediate pressure cavity which is operable to open and close a leakage path between the discharge zone and the suction zone of the scroll machine. The leakage path is closed when intermediate pressurized fluid is supplied to th...	01/07/1997
5569025	Leak-proof ABS/TCS pump assembly with non-return valve A pump assembly for a controlled brake system diverts pressure fluid entrained by the pistons which collects in the space around the eccentric to prevent it from becoming pressurized by the moving pistons. A non-return valve inserted into an exit duct is ...	10/29/1996
5478213	Fuel injection pump A fuel injection pumping apparatus has a cam (9) actuated reciprocable plunger (13) housed in a bore (11) into which fuel flows from a fuel supply (7,14). An outlet (12) extends from a pumping chamber (13A) defined by the plunger and bore. A spill passage...	12/26/1995
5431229	Method and apparatus for utilizing the pressure of a fluid column generated by a pump to assist in reciprocating the pump plunger The apparatus provides both a novel reciprocating pump for pumping fluid from a source by forming and moving a fluid column within a tubing and a method of using the pump. The pump, which is particularly suited for oil wells, uses the pressure generated b...	07/11/1995
4960369	Rotatably driven positive displacement pump A rotatably driven positive displacement pump including a tubular conduit with a barrel communicating therewith, the barrel having a plurality of pairs of spaced apart fluid inlet and fluid outlet ports, each port being controlled by a unidirectional valv...	10/02/1990
4934914	Portable motor pump A portable motor pump of the type in which a pump section driven by a motor is installed inside a liquid chamber, with a discharge port of the pump section being opened into the liquid chamber, and in which water which is to be pumped is led from the outs...	06/19/1990
4871303	Fuel drain safety system for fuel pumps and the like A fuel drain system for use in a fuel pump for an aircraft fuel tank or the like which includes a housing and a pump cartridge positionable in the housing for removal therefrom. A drain plug is removably mounted on and projects from the pump cartridge for...	10/03/1989
4807699	Tubing sleeve A tube shaped sleeve apparatus which includes two cylindrical components adapted to be connected to each other and sections of tubing string by cooperating threads formed at the ends thereof. At spaced intervals in the periphery of the sleeve are a plural...	02/28/1989
4685865	Liquid ring compressor having openings in housing for emptying liquid during stoppage The invention relates to a liquid ring compressor in which only one central emptying opening is provided to the outside per compressor stage. It is ensured by means of appropriate connections of the chambers pertaining to each compressor stage that the en...	08/11/1987
4595061	Deep well pipe water release valve A hollow T-shaped fitting is provided including a vertically straight first leg open at its upper and lower ends and a second horizontal lateral leg opening into and outwardly away from an intermediate height portion of the first leg. The outer end of the...	06/17/1986
4522569	Venting fuel valve for diesel engine fuel supply system A diesel engine fuel supply system having an injector pump, a fuel tank, a fuel inlet conduit between the fuel tank and the injector pump and a fuel return conduit between the injector pump and the fuel tank, a venting fuel valve including a valve body, a...	06/11/1985
4465428	Pipe fitting and method for draining a hydrotherapy pump A pipe fitting for attachment to a hydrotherapy pump has an inlet and outlet having parallel offset axes, with a separate small hollow nipple extending from and communicating with the inlet. The nipple attaches to the pump at a location normally occupied ...	08/14/1984
4362478	Bypass valve for sucker rod pumps A pipe section with an exteriorally secured valve body is arranged to be inserted in a lower portion of a well pipe string containing sucker rods and a lower pump, the pipe section and valve body being disposed slightly above the pump itself. A lateral pi...	12/07/1982
4298314	Hermetic compressor having a valve to drain liquid accumulations from its cylinder head A hermetic compressor having an upper portion 12 and a lower portion 16 is provided with a motor 20 in its upper portion with a vertical crankshaft 22 extending down into the lower portion and driving a plurality of pistons 28, 30 in cylinders 24, 26 arra...	11/03/1981
4293288	Submersible pump housing A housing of a single material of construction for a submersible pump adapted to integrally contain the usual diffuser stack and a mounting bracket for the pump motor. The housing is provided upwardly of the lower end thereof with a multiplicity of circum...	10/06/1981
4284371	Material handling system A centrifugal pump driven by a tractor draws material, as liquid manure, through a suction hose and discharges the material into one of two discharge hoses. A first discharge hose directs the material back into the source of material to agitate and mix th...	08/18/1981
4273520	Deep well pump A pump barrel open at its lower end is coupled at its upper end by a tubular adapter assembly to the lower end of a pump tubing string, this assembly presenting an internal bevelled sealing-latching annulus, an axially bored pump head being radially expan...	06/16/1981
4166715	Oil well pumping tube drain device A specially designed valve is incorporated in the pumping tube of an oil well pump secured to the lower end of an oil well pipe string. In pumping the well, oil is drawn up through the pumping tube and oil pipe string to the surface. The check valve is ar...	09/04/1979
4157117	Oil well tube draining method and means A simplified means for draining oil well tubing to equalize the hydrostatic pressure of oil pumped up through the tubing with the oil in the annulus defined between the exterior of the tubing and the well casing is provided. Essentially, the pump barrel i...	06/05/1979
4103739	Sand release apparatus for a pump In oil wells which utilize a reciprocating pump installed in a tubing string, an apparatus is disclosed which has the preferred form of a pair of telescoped tubular members threaded into the pump just above the lower end where sanding locks the pump. The ...	08/01/1978
4050857	Incoming gated relief valve A gate valve is threadedly attached to an influent port of a motorized pump of a vehicular fire engine at all times. Thus it is not necessary to stop the pump, remove a cap and connect a water supply hose to the influent port. Instead the supply hose is c...	09/27/1977
4047853	Hydraulic unloading and circulating device The hydraulic unloading and circulating device is adapted to be inserted in a threaded joint of a well tool connected to sucker rods and including a pumping tube surrounding said tool and supported on the end of a pipe string through which said sucker rod...	09/13/1977
3994338	Hydrostatic pressure release for bottom hole oil well pumps A subjoint, having a wall port normally closed by a frangible disk, is connected with the depending end of a bottom hole oil well pump below the standing valve for draining fluid out of the tubing when the frangible disk is ruptured....	11/30/1976
3990509	Tool for servicing wells A tool for use in wells having a first assembly with an internal fluid passage and a port interconnecting the exterior of the first assembly and the passage; a mechanism borne by the first assembly for releasably securing the first assembly in a well in a...	11/09/1976
3975119	Diaphragm pump having auxiliary chamber An improved diaphragm pump including motor driven reciprocating means secured at its outboard end to a flexible diaphragm spanning a pump cavity defined by a pump head including an integrally formed auxiliary chamber provided with valve means adapted to d...	08/17/1976

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Class 417/434 - INCLUDING SEPARATE PORT ON NONCYCLIC VALVE FOR DRAINING PUMP PORTION