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Pumps

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Class / Patent application numberDescriptionNumber of patent applications / Date published
417321000 MOTOR DRIVEN 1530
417437000 EXPANSIBLE CHAMBER TYPE 551
417001000 CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR 512
417053000 PROCESSES 408
417279000 WITH CONDITION RESPONSIVE PUMPED FLUID CONTROL 128
417212000 CONDITION RESPONSIVE CONTROL OF DRIVE TRANSMISSION OR PUMP DISPLACEMENT 111
417065000 ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER 103
417269000 THREE OR MORE CYLINDERS ARRANGED IN PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS 101
417244000 SUCCESSIVE STAGES 75
417313000 COMBINED 72
417312000 WITH MUFFLER ACTING ON PUMP FLUID 63
417048000 ELECTRICAL OR GETTER TYPE 53
417063000 WITH SIGNAL, INDICATOR, OR INSPECTION MEANS 50
417234000 AMBULANT, BODY SUPPORTED, OR WITH CARRYING HANDLE 40
417199100 DIVERSE PUMPS 32
417319000 INCLUDING DISENGAGEABLE ROTARY OR FRANGIBLE DRIVE CONNECTION 15
417228000 WITH CONDITION RESPONSIVE CONTROL OF COOLANT OR LUBRICANT 12
417572000 MISCELLANEOUS 11
417062000 ALTERNATE SERIES OR PARALLEL OPERATION OF PLURAL PUMPS 9
417229000 OPERATED BY ART DEVICE 8
417207000 BY HEATING OF PUMPED FLUID 7
417243000 WITH INTERCOOLER 7
417064000 GAS PRESSURE EXCHANGE USING ROTARY CELLULAR CONVEYOR 6
417435000 INCLUDING SEPARATE PORT ON NONCYCLIC VALVE FOR VENTING OR FILLING PUMP PORTION 4
20110194959OIL PUMP WITH AIR VENT STRUCTURE - In an oil pump for an automatic transmission, a suction port is adapted to be connected to a first suction passage. The first suction passage is arranged in parallel with a second suction passage connected to an auxiliary pump. The first and second suction passages branch from an upstream suction passage leading to an oil strainer. A discharge outlet is adapted to be connected to a first discharge passage. An air vent hole is disposed downstream of the suction port and upstream of the discharge outlet. A communication passage is connected to the air vent hole and adapted to reach a predetermined oil level in an oil pan so as to communicate the air vent hole with inside of oil in the oil pan.08-11-2011
20080213110Apparatus and Method for Compressing a Cryogenic Media - An apparatus and method for compressing a cryogenic media is disclosed. A compressor includes a compressor chamber surrounded by a cylinder wall in which a compressor piston is moved in a linear manner, a suction valve and a pressure valve, which are arranged in the region of the lower end position of the compressor piston, and a liquid chamber which at least partially surrounds the compressor chamber. The cylinder wall defines at least one opening, which corresponds to the liquid chamber, and at least one opening, via which the gaseous medium can be extracted from the compressor chamber, where the openings are located at points on the cylinder wall that are passed by the compressor piston.09-04-2008
20080213111SYSTEM FOR RELEASING GAS INTO MOLTEN METAL - A device for releasing gas into molten metal includes a base having a discharge. The discharge has a first section including a first cross-sectional area and a second section including a second cross-sectional area, wherein the first section is upstream of the second section and the first cross-sectional area is smaller than the second cross-sectional area. A gas-release opening is positioned so that it can release gas into one or more of the first section or the second section. As the molten metal moves from the first cross-sectional area to the second cross-sectional area gas is released into the molten metal and the molten metal flow helps to draw the gas into the flow, thereby lowering the pressure required to release gas into the molten metal. Metal-transfer conduits other than a discharge incorporated in a pump base are also disclosed, as are pumps including either a discharge or other metal-transfer conduit according to the invention.09-04-2008
20130189135AIR PUMP STRUCTURE - An air pump structure includes a main body. The main body has a central air chamber. The main body has two side air chambers at two sides thereof. The two side air chambers communicate with the central air chamber through an air inlet unit. The two side air chambers each have a passage at a lower end thereof to communicate with an air outlet. A one-way valve plate is coupled to the air outlet. Two air pump members are to seal the two side air chambers. The air pump members cooperate with a link member and an electromagnetic member to pump air. The present invention has a simple configuration and lowers the cost and is convenient for assembly to enhance its quality and prevent air leakage.07-25-2013
417426000 PLURAL PUMPS WITH INDIVIDUAL OR RELATIVE CONTROL 4
20110135521DEVICE FOR ADJUSTING THE FREE STROKE IN HYDRAULIC BRAKES OF BICYCLES OR MOTORCYCLES - A device for adjusting the free stroke for hydraulic brakes of bicycles or motorcycles of the type comprising a pump assembly (06-09-2011
20120107158SEALED COMPRESSOR WITH MULTIPLE COMPRESSOR UNIT - A sealed compressor has an outer housing and a separator plate received within the outer housing. The separator plate defines a suction chamber and a discharge pressure chamber within the outer housing. A locating plate is positioned within the suction pressure chamber. The locating plate has a plurality of positioning locations for receiving separate compressor housings. The separator plate has a plurality of positioning openings for receiving the separate compressors. A plurality of compressors are each received within their own housing, and include compressor pump units. The plurality of compressors extend between the openings in the locating plate and through the openings in the separator plate. The separate compressors deliver compressed refrigerant into the discharge pressure chamber.05-03-2012
20110243772FUEL SUPPLY INSTALLATION OF AN AIRCRAFT TURBOJET - Optimisation of components of a fuel supply installation for a turbojet.10-06-2011
20090175745Blower Unit for Vehicle - A blower unit for generating air for cooling a heat exchanger includes a plurality of blowers, a single motor, a driving shaft, gears, gear boxes and a joint. The blowers are arranged in parallel with each other with respect to a flow of air passing through the heat exchanger. The driving shaft extends from the motor and is connected to rotation shafts of the blowers through the gears. The gear boxes house the gears therein and support the driving shaft and the rotation shafts of the blowers to be rotatable. The driving shaft is divided into a plurality of shaft parts in a longitudinal direction thereof. The adjacent shaft parts are connected to each other through the joint.07-09-2009
417056000 DRILLED WELL FREE PISTON-TYPE PUMP 4
20090068026Downhole Pump - An apparatus for pumping fluids from a geologic formation comprising a submersible motor having a motor shaft, wherein said submersible motor is reversible and has a plurality of speed settings; a pump housing connected to said submersible motor by a motor mount, wherein said pump housing has a lubricant contained therein; and a tube connected to said pump housing having a pump barrel disposed therein, wherein said pump barrel has an upper barrel connector that is connected to a standing valve; whereby a reciprocating motion by a ball nut applies said lubricant on a ball screw, and associated method of use.03-12-2009
20090074591HIGH PRESSURE RADIAL PUMP03-19-2009
20110014064HYDRAULIC OIL WELL PUMPING APPARATUS - A hydraulic oil well pumping arrangement employs a compensating type hydraulic pump, a directional valving arrangement and a proportioning valving arrangement. When the directional valve is energized, oil is directed to the rod end of the hydraulic cylinder. The rod or piston part of the hydraulic cylinder will then elevate until a first limit switch is actuated which then will de-energize the directional valve and send a current signal to the proportional valve. This current signal to the proportional valve forces it to open to a point at which the cylinder rod would extend at the desired velocity until it reaches a second limit switch. The second limit switch is near the bottom (for example, 1 foot, or 0.30 meters) of travel of the rod or piston. The current signal to the proportional valve is then decreased, creating a choking arrangement that forces the cylinder rod to decelerate. The cylinder rod then reaches another limit switch. Upon reaching the third limit switch, the signal is removed from the proportional valve so that it closes. This halts a draining of fluid from the hydraulic cylinder. At the same time, a voltage signal is sent to the directional valve opening it so that pump flow again travels from the pump to the hydraulic cylinder and once again elevates the rod and the connected pumping string or sucker rod.01-20-2011
20090246037SAFETY CLAMP FOR WALKING BEAM COMPRESSOR - Various methods and devices are provided for securing a walking beam compressor to a walking beam. In general, the walking beam compressor is a gas compressor unit that can be disposed around a piston rod extending from a walking beam of an oil well. The piston rod can be coupled to the walking beam by a securing mechanism that engages both the piston rod and the walking beam to prevent the piston rod from disengaging from the walking beam during rocking movement of the walking beam.10-01-2009
417316000 CORRELATED PUMP AND MOTOR OR CLUTCH CONTROL 3
20110236230WATER PUMP FOR VEHICLE - A water pump for a vehicle includes a power transmitting member, a driven shaft rotated independently from the power transmitting member, an impeller, a biasing member for pressing an inner circumferential surface of the power transmitting member and for rotating in order to transmit a rotation of the power transmitting member to the driven shaft when the biasing member contacts the inner circumferential surface, and a control member for allowing the power transmitting member and the biasing member to come in contact with each other or to come out of contact from each other and for controlling a contacting state between the power transmitting member and the biasing member.09-29-2011
20090208350TUBE UNIT, CONTROL UNIT, AND MICROPUMP - A micropump includes: a tube unit including a tube which has elasticity, and one portion of which is disposed in an arc shape, a plurality of fingers, which are disposed radiating from a direction of a center of the arc shape of the tube, and a guide frame, which holds the tube and the plurality of fingers; and a control unit including a cam, which sequentially presses the plurality of fingers in a direction in which a liquid flows, a drive force transmission mechanism, which transmits a torque to the cam, and a control circuitry, which carries out a control of a motor which drives the drive force transmission mechanism, wherein the tube unit and the control unit are attached stacked one on the other, and are detachable.08-20-2009
20110236231WATER PUMP FOR VEHICLE - A water pump for a vehicle includes a power transmission member driven and rotated by an external power, a driven shaft driven to be rotatable independently from the power transmission member, an impeller, an arm member which includes a pressing portion pressing the power transmission member and which is contactable to the power transmission member for transmitting a rotation of the power transmission member to the driven shaft, a control member controlling the arm member so that the arm member and the power transmission member come in contact with each other or come out of contact from each other and so that a contact state between the arm member and the power transmission member is variable, and a biasing member biasing the arm member toward the power transmission member.09-29-2011
417278000 EXTERNAL CONDITION RESPONSIVE PUMPED FLUID CONTROL 3
20080286126Utility pump - A lightweight, inexpensive, corrosion proof, utility pump having a flexible member forming a sliding interference fit with a pump rod with the flexible member confined between a pump rod bushing and an end cap to prevent leakage and a method of converting an inexpensive utility pump from a leaking condition to a non leaking condition without having to modify the existing components of the utility pump.11-20-2008
20100068077VACUUM PUMP WITH COMBINED DEBRIS CATCHER AND PRESSURE RELIEF VALVE - A combined debris catcher and pressure relief valve positionable between first and second ports of an inlet arrangement that is upstream of the main body of a vacuum pump. The debris catcher includes an open ended tube that is spring biased upwardly and in normal operation forms a seal with the inlet arrangement. In the raised or sealed position, incoming fluid from the system to be evacuated travels along a closed flow path through the first port of the inlet arrangement, through the debris catcher, and out through the second port of the inlet arrangement into the main body of the vacuum pump. If the inlet arrangement is hooked up initially or at any time to a system that is above atmospheric pressure, the above atmospheric pressure will overcome the upward force of the spring on the tube and cause the tube to move to an open position spaced from the inlet arrangement harmlessly venting the high pressure fluid to ambient air and avoiding potential damage or contamination to the pump.03-18-2010
20110182755SYSTEM FOR RAISING WATER FROM AN UNDERGROUND SOURCE - A system for raising water from an underground source of water to an aboveground tank includes a plurality of capillary tubes for raising water from the underground source to a first water level, a pipe for raising water from the first water level to an above ground tank, the aboveground tank is painted black to absorb the sun's rays and is tilted with an elevated proximal end so that water in the tank runs down to its distal end. A tap is provided in the distal end for drawing water out of the tank. The tank also includes two one way valves, one in an upper portion of the distal end for allowing heated air to escape and one in a lower portion of the distal end to allow water to be drawn up into the tank as heated air cools. A solar powered rechargeable battery can be used to power a positive displacement pump.07-28-2011
417315000 REVERSE FLOW WITH UNIDIRECTIONAL DRIVE OR UNIDIRECTIONAL FLOW WITH REVERSE DRIVE 3
20080232982Single Direction Air Pump Assembly with Dual Flowpaths - A pump assembly for an inflatable structure comprises a blower unit disposed in a housing configured to move air in a single direction from an inlet in the housing to an outlet in the housing. A connector is in communication with the housing outlet. The connector is adapted to connect the pump assembly to an inflatable structure to allow inflation and deflation of the inflatable structure. A base is provided with first and second valve bodies positionable in the base for selective movement between inflate and deflate positions. The first valve body aligns the housing outlet in communication with the connector and the second valve body aligns the housing inlet with atmosphere in the inflate position. The second valve body aligns the connector in communication with the housing inlet and the first valve body aligns the housing outlet in communication with atmosphere in the deflate position.09-25-2008
20100014993ELECTRICAL AIR PUMP ASSEMBLY AND INFLATABLE PRODUCT HAVING THE SAME - An inflatable product includes an inflatable body having an exterior wall defining at least one air chamber therein, at least one electrical air pump unit, an electrical switch connected electrically to the electrical air pump unit, and at least one controller. The controller is operable manually to activate the electrical air pump unit so as to perform a selected one of inflation, full deflation, and partial deflation of the air chamber in the inflatable body.01-21-2010
20080286129Helical Screw Compressor - The invention relates to a helical screw compressor which comprises two rotors (11-20-2008
417236000 CONVERTIBLE TO APPARATUS OF A DIFFERENT CLASS 2
20100322790RECIPROCATING COMPRESSOR - The present invention relates to a reciprocating compressor. The reciprocating compressor includes a latching unit by which a piston is reciprocated by two times a total eccentric amount obtained by adding an eccentric amount of an eccentric portion to an eccentric amount of an eccentric sleeve in a power mode, while the piston is reciprocated by two times the eccentric amount of the eccentric portion in a saving mode, accordingly the piston can have an upper dead point same in the power mode and the saving mode, thereby reducing a dead volume between the piston and a discharge valve and increasing a variable ratio of a cooling capacity of the compressor in the saving mode.12-23-2010
20090116973Pump for Shock Absorbers - A pump for use in combination with shock absorbers comprises a joint having a first portion, a second portion and a channel extending therethrough. A tube receives the second portion of the joint. A collar includes a first end and a second end, with the first end pivotally receiving the first portion of the joint. An adapter is positioned above the first portion of the joint and includes a passage therein and an air anti-leak member for preventing air leak between the channel and the passage when pumping. A cap is engaged with the second end of the collar and including an opening into which a valve is adapted to insert and thereafter engages with the nozzle head.05-07-2009
417061000 BUOYANTLY SUPPORTED 2
20100054961APPARATUS AND METHOD FOR A SUBMERSIBLE PUMP SYSTEM AND LINEAR ELECTROFUSION - This invention relates generally to a high volume, buoyancy controlled submersible pump assembly designed to sit on the bottom of a body of water or other liquid substance and move a large volume of water or liquid substance. Alternatively, the submersible pump assembly is capable of achieving and maintaining neutral buoyancy or near neutral buoyancy in a particular body of water or liquid substance. The neutrally buoyant version includes the means to maintain the pump assembly at a given depth without requiring it to sit on the bottom of the body of water or other liquid substance. This invention also relates to linear electrofusion for thermoplastic components.03-04-2010
20110123357FLOATABLE PUMP UNIT - A pump assembly is buoyant and includes an electrical drive motor (05-26-2011
417240000 INERTIA LIQUID PISTON (E.G., MOMENTUM, ETC.) 1
20110171043Fluid Transfer Apparatus - The invention relates to an apparatus for transporting a fluid, an object to be transported, in the vertical or horizontal direction. More particularly, the apparatus of the present invention has a surface formed into a pattern recursively alternating in a fluid transfer direction such that the surface of the apparatus has a contact angle different from that of the fluid, and the transportation of the fluid is controlled by the hydrodynamic force generated by the difference of the contact angles.07-14-2011
417430000 INCLUDING MEANS TO (1) AGITATE PUMP FLUID, OR (2) PREVENT FOREIGN MATERIAL SETTLING FROM PUMP FLUID 1
20110200470COMPRESSOR - A compressor is disclosed, which has an inflow channel for guiding a compression medium into a compressor housing, a pressure chamber formed within the compressor housing, and a liner segment with nozzles that transport the compression medium from the pressure chamber to a rotor. The nozzles are formed in the liner segment as a plurality of nozzles arranged in a group in fan-like manner.08-18-2011
417225000 INTENSIFIER 1
20120009072HIGH PRESSURE INTENSIFIERS - A high pressure intensifier system comprises a high pressure intensifier configured to receive hydraulic fluid from an input and provide the fluid to an output at a higher pressure than at the input; a monitor configured to monitor the pressure of hydraulic fluid provided at the output; and a control configured to control the supply of hydraulic fluid from the input, and configured to maintain the pressure of hydraulic fluid provided at the output at substantially a predetermined value.01-12-2012
417436000 TRANSVERSELY MOVABLE IMPELLING MEMBER (E.G., PADDLE) 1
20130028767MOLECULAR-SCALE BEAM PUMP ASSEMBLIES AND USES THEREOF - Nanomechanical, nanoelectromechanical, and other molecular-scale pump assembly are described. In certain embodiments, the pump assembly includes a cavity. The cavity includes a plurality of nanofilaments, a surface proximate at least one of the nanofilaments, a fluid flow path, and an opening. Molecules of a fluid that flows from the opening through the cavity along the fluid flow path collide with the surface or one or more of the nanofilaments such that the molecules are accelerated along the fluid flow path. A molecular-scale pump assembly includes a plate defining a plurality of openings, and a plurality of cantilevered molecular-scale beams positioned over each opening. In certain embodiment, molecules of a fluid are accelerated through the opening by asymmetric oscillation.01-31-2013
417211500 LIQUID LEVEL RESPONSIVE CONTROL OF DISPLACEMENT, VOLUMETRIC CAPACITY, OR DRIVE TRANSMISSION 1
20080267791System for the Suction of a Fluid, Having the Additional Function of Sucking Another Fluid - A suction system comprising a suction pump (10-30-2008
417238000 CHANGEABLE BY ASSEMBLY OR DISASSEMBLY 1
20100247337AIR PUMP FOR AIR MATTRESS - An air pump for an air mattress has a housing, a first air vent and a second air vent respectively mounted on a top and a bottom of the housing, a chamber, a blower and an air direction switcher mounted in the chamber, an actuating mechanism, and an air valve. A slider in the air direction switcher is moved by operating the actuating mechanism being a solenoid valve or a knob gear and a follower. The air valve is propped up by a sloping partition of the slider to open the second air vent. Given the structure of the air pump, the first and second air vents are flexibly arranged and can be directly aligned with each other. Therefore, the air path is shortened to inflate and deflate more rapidly and more efficiently.09-30-2010
417274000 CONDITION RESPONSIVE VARIABLE VOLUMETRIC CAPACITY EXPANSIBLE CHAMBER PUMP (I.E., CLEARANCE CONTROL) 1
20120308409FLUID FLOW METER - A fluid flow meter comprising a fluid pump to displace fluid with pumping strokes of one or more pumping stroke types wherein each of the one or more stroke types displaces a known volume of fluid, a sensor functionally associated with a fluid reservoir and adapted to generate a signal indicative of a fluid pumping condition within the fluid reservoir, which fluid reservoir is integral or functionally associated with the pump, and circuitry to trigger one or a sequence of strokes of the pump in response to a signal from the sensor.12-06-2012
417211000 INERTIA-TYPE PUMPING MEMBER OR DRIVE MEANS 1
20090290995Kinetic Energy Impact Pump (KEIP) - Dropping weights in series, keeping constant spin on shaft transferring mechanical energy to electrical energy or impacting objects to store energy into pressure system is important in the field of energy. A matter exchange must happen to implement the Double Gravity Energy Process of draining water into open environment. By cycling water back into the water system that it is expelled allows for no water flow into column of water or medium chosen. This allows for the Double Gravity Energy Process to be placed anywhere, within a gravity field or possible centrifugal force structure or situation until density equalization is reached. Non-polluting power plants extracting energy from the gravity field are possible with many designs viable. The KEIP is one viable way to exchange matter using the Double Gravity Energy Process.11-26-2009

Patent applications in class Pumps

Patent applications in all subclasses Pumps