| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 417321000 |
MOTOR DRIVEN
| 2571 |
| 417437000 |
EXPANSIBLE CHAMBER TYPE
| 930 |
| 417001000 |
CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR
| 851 |
| 417053000 |
PROCESSES
| 838 |
| 417212000 |
CONDITION RESPONSIVE CONTROL OF DRIVE TRANSMISSION OR PUMP DISPLACEMENT
| 202 |
| 417065000 |
ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER
| 179 |
| 417279000 |
WITH CONDITION RESPONSIVE PUMPED FLUID CONTROL
| 171 |
| 417269000 |
THREE OR MORE CYLINDERS ARRANGED IN PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS
| 143 |
| 417244000 |
SUCCESSIVE STAGES
| 96 |
| 417313000 |
COMBINED
| 93 |
| 417063000 |
WITH SIGNAL, INDICATOR, OR INSPECTION MEANS
| 93 |
| 417312000 |
WITH MUFFLER ACTING ON PUMP FLUID
| 90 |
| 417048000 |
ELECTRICAL OR GETTER TYPE
| 81 |
| 417234000 |
AMBULANT, BODY SUPPORTED, OR WITH CARRYING HANDLE
| 51 |
| 417199100 |
DIVERSE PUMPS
| 39 |
| 417319000 |
INCLUDING DISENGAGEABLE ROTARY OR FRANGIBLE DRIVE CONNECTION
| 30 |
| 417228000 |
WITH CONDITION RESPONSIVE CONTROL OF COOLANT OR LUBRICANT
| 28 |
| 417229000 |
OPERATED BY ART DEVICE
| 17 |
| 417243000 |
WITH INTERCOOLER
| 13 |
| 417572000 |
MISCELLANEOUS
| 13 |
| 417062000 |
ALTERNATE SERIES OR PARALLEL OPERATION OF PLURAL PUMPS
| 12 |
| 417207000 |
BY HEATING OF PUMPED FLUID
| 11 |
| 417064000 |
GAS PRESSURE EXCHANGE USING ROTARY CELLULAR CONVEYOR
| 8 |
| 417061000 |
BUOYANTLY SUPPORTED
| 8 |
| 417435000 |
INCLUDING SEPARATE PORT ON NONCYCLIC VALVE FOR VENTING OR FILLING PUMP PORTION
| 7 |
| 417434000 |
INCLUDING SEPARATE PORT ON NONCYCLIC VALVE FOR DRAINING PUMP PORTION
| 7 |
| 417274000 |
CONDITION RESPONSIVE VARIABLE VOLUMETRIC CAPACITY EXPANSIBLE CHAMBER PUMP (I.E., CLEARANCE CONTROL)
| 6 |
| 417426000 |
PLURAL PUMPS WITH INDIVIDUAL OR RELATIVE CONTROL
| 6 |
| 417056000 |
DRILLED WELL FREE PISTON-TYPE PUMP
| 6 |
| 417316000 |
CORRELATED PUMP AND MOTOR OR CLUTCH CONTROL | 5 |
| 20090208350 | TUBE 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 |
| 20110236230 | WATER 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 |
| 20110236231 | WATER 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 |
| 20140322041 | FRICTION CLUTCH ASSEMBLIES - A friction clutch assembly, preferably for a hybrid cooling pump. The friction clutch assembly includes a friction lining carrier member, a friction lining member, a compression spring member, a clutch carrier member and a flux plate member. A solenoid can be utilized to control the compression of the spring member. The friction clutch assembly has a preferred use in a hybrid coolant pump with two modes of operation, an electric motor operation, and a mechanical pulley-driven operation. The friction clutch assembly can be positioned inside a motor housing. The softening compression spring can minimize parasitic clutch power consumption. | 10-30-2014 |
| 20150023813 | GAS COMPRESSOR - A gas compressor includes a housing configured to house a compressor main body including a rotation shaft, and an electromagnetic clutch including an electromagnetic coil formed annularly around the rotation shaft, wherein a seating surface is formed on the housing and abuts against one end surface of the electromagnetic coil, and at least a portion of the seating surface is formed to extend to an outside of a center radius of the electromagnetic coil in a radial direction. | 01-22-2015 |
| 417278000 |
EXTERNAL CONDITION RESPONSIVE PUMPED FLUID CONTROL | 5 |
| 20080286126 | Utility 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 |
| 20100068077 | VACUUM 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 |
| 20110182755 | SYSTEM 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 |
| 20160040584 | ELECTRO-MECHANICAL DRIVE MECHANISM FOR AN IMPELLER SHROUD OF A VARIABLE WATER PUMP - An external actuator for a variable water pump is provided having a housing and variable flow impeller located therein that is connected to a drive shaft. The actuator includes a housing and a drive ring rotatably mounted therein, with the drive ring having external teeth and an internal thread. A drive gear is engaged with the external teeth of the drive ring, with the drive gear being rotatably mounted in the housing. A drive nut having external threads is located within the drive ring with the external threads engaging the internal threads of the drive ring. Rotation of the drive ring causes an axial displacement of the drive nut. At least one actuator pin is connected to the drive nut and extends into the water pump housing to the variable flow impeller. A motor is connected to the drive gear for rotation of the drive gear to vary an output. | 02-11-2016 |
| 20160201665 | GAS CONTROL DEVICE | 07-14-2016 |
| 417315000 |
REVERSE FLOW WITH UNIDIRECTIONAL DRIVE OR UNIDIRECTIONAL FLOW WITH REVERSE DRIVE | 5 |
| 20080232982 | Single 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 |
| 20080286129 | Helical Screw Compressor - The invention relates to a helical screw compressor which comprises two rotors ( | 11-20-2008 |
| 20100014993 | ELECTRICAL 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 |
| 20130336815 | HYDRAULIC AXIAL PISTON PUMP ABLE TO OPERATE IN BOTH DIRECTIONS - A hydraulic pump rotates in both directions of rotation, and includes a casing, a common drive shaft mounted so as to be able to rotate relative to the casing, two swashplates borne by the common drive shaft, these two swashplates being symmetric and opposite each other and each including one supply crescent, a respective hollow piston pressing against each swashplate via the intermediary of a slipper shoe and designed to slide in a respective cylinder connected to the casing, the crescent of the swashplate being in each case arranged so as to pass over the hollow piston during a suction phase of the hollow piston, each cylinder being fitted with a check valve on the discharge side, such that only one of the two swashplates provides an output when the drive shaft rotates in one direction, the other swashplate providing an output when the shaft rotates in the other direction. | 12-19-2013 |
| 20150308454 | PUSH-BUTTON AIR PUMP - A push-button air pump includes a casing, a blower device, and a push button device. A top panel of the casing is formed with a first inflation opening and a first deflation opening. The push button device includes an inflation button and a deflation button. The lower portion of the casing is formed with a second inflation opening and a second deflation opening. The inflation button and the deflation button are adapted to control inflation and deflation. This simplifies the complicated structure of the traditional turn-knob control. The size of the product becomes smaller. The way for inflation and deflation is simple, and the operation is convenient. | 10-29-2015 |
| 417236000 |
CONVERTIBLE TO APPARATUS OF A DIFFERENT CLASS | 3 |
| 20100322790 | RECIPROCATING 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 |
| 20150078926 | REGENERATIVE HYDRAULIC LIFT SYSTEM - A hydraulic cylinder assembly for a fluid pump including a cylinder, a bearing attached to an approximate first end of the cylinder, a rod slideably mounted within the bearing, and a piston located about an end of the rod in the cylinder opposite the bearing. A central axis of the rod is offset from, and parallel to, a centerline of the cylinder to impede a rotation of the piston about the rod. The hydraulic cylinder assembly further including a hydraulic pump fluidly connected to the cylinder, the pump configured to provide a hydraulic pressure to the cylinder during an up-stroke of the piston and rod and the pump further configured to generate electricity on the down-stroke of the piston and rod. | 03-19-2015 |
| 20090116973 | Pump 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 |
| 417211000 |
INERTIA-TYPE PUMPING MEMBER OR DRIVE MEANS | 3 |
| 20090290995 | Kinetic 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 |
| 20140105761 | RECIPROCATING COMPRESSOR - A reciprocating compressor is provided that may include a cylinder having a compression space; a piston inserted into the compression space of the cylinder and making a relative reciprocating movement with respect to the cylinder; and a plurality of resonance springs that supports both sides of a member that makes a reciprocating movement, among the cylinder and the piston, in a movement direction. The plurality of resonance springs may be compression coil springs, and at least one of the plurality of resonance springs may be arranged in a direction such that a direction of a side force of the spring does not correspond to a gravitational direction. Since the side force and a force based on self-weight may become zero, sagging of a vibrator due to self-weight may be prevented. | 04-17-2014 |
| 20150337812 | Centripetal Compressor - Dual-action pistons positioned in cylinders that describe a translational movement in space are responsible for starting operation of the compressor. The advantage of this system is that the centripetal force is the only force responsible for the gas compression work, thereby resulting in a reduction in the power consumed as compared with conventional compressors. | 11-26-2015 |
| 417238000 |
CHANGEABLE BY ASSEMBLY OR DISASSEMBLY | 3 |
| 20100247337 | AIR 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 |
| 20130336813 | GAS COMPRESSOR - A high-pressure piston compressor ( | 12-19-2013 |
| 20130343921 | PRESSURE-REGULATING RECIPROCATING-PISTON PUMP HAVING A MAGNET DRIVE - The invention relates to a reciprocating piston pump having a magnet drive and a first displacement chamber and a second displacement chamber, which are separated from each other by a piston , wherein both displacement chambers are connected to each other by a fluid-conducting channel. An overflow valve is arranged in the channel and allows a preferred flow from the first displacement chamber to the second displacement chamber, wherein an additional return valve is arranged either in a transition region between an inlet and the first displacement chamber or in a transition region between the second displacement chamber and an outlet, an armature of the magnet drive being firmly connected to the piston. | 12-26-2013 |
| 417225000 |
INTENSIFIER | 2 |
| 20140178214 | HYDROPNEUMATIC DEVICE AND ASSEMBLY KIT - A hydropneumatic device having pressure a working part with a working piston guided in the working part and an intensifier part with an intensifier piston guided in the intensifier part. A connecting section for a hydraulic connection of the working part and of the intensifier part provides a connecting line for passage of hydraulic fluid between the working part and the intensifier part. The connecting section includes an adapter component which can be mounted on the working part and the intensifier part, and in the interior of which the connecting line is formed. In the mounted state of the adapter component, an opening, which is provided at the side on the working part, of a hydraulic chamber of the working part is connected, via the connecting line, to an opening, which is provided at the side on the intensifier part, of a hydraulic chamber of the intensifier part. | 06-26-2014 |
| 20120009072 | HIGH 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 |
| 417052000 |
EXPANSION AND CONTRACTION OF PUMP FLUID | 2 |
| 20150369231 | MAGNETOCALORIC DRIVING DEVICES - A magnetocaloric driving device is disclosed herein. The driving device comprises a magnet, an effective amount of a magnetocaloric material, and a counterpoise mechanism. The driving device generates useful mechanical energy by alternately cooling and heating the magnetocaloric material using an ambient heat sink proximate to a heat source. Useful heat sources include hot production fluids, such as hot water produced from a geothermal well. Useful heat sinks include cold production fluids, and cold ambient environments. | 12-24-2015 |
| 20160131122 | Convection pump and method of operation - This disclosure provides systems, methods, and apparatus related to a convection pump. In one aspect, an apparatus includes a chamber, the chamber having an inlet at a first end of the chamber and an outlet at a second end of the chamber. The chamber further has a first surface and a second surface, the first surface being opposite to the second surface. A baffle having a substantially helical shape is disposed inside the chamber. A heating device is configured to heat the first surface of the chamber. A cooling device is configured to cool the second surface of the chamber. | 05-12-2016 |
| 417432000 |
INCLUDING APPLICATION OF SEPARATE FLUID TO PUMP VALVE | 1 |
| 20150078940 | ELECTRIC PUMP AND CLEANING DEVICE FOR ON-VEHICLE OPTICAL SENSOR - An electric pump includes a cylinder, a piston, a motor, and a discharge valve. The cylinder includes a valve port and a discharge port, which is in communication with the valve port. The discharge valve opens and closes the valve port. When the piston is moved forth to narrow a void in the cylinder, air is compressed in the cylinder. The discharge valve opens when operated by the piston that moves forth. The discharge valve opens and discharges compressed air from the valve port so that fluid including air is discharged from the discharge port. | 03-19-2015 |
| 417240000 |
INERTIA LIQUID PISTON (E.G., MOMENTUM, ETC.) | 1 |
| 20110171043 | Fluid 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 |
| 417211500 |
LIQUID LEVEL RESPONSIVE CONTROL OF DISPLACEMENT, VOLUMETRIC CAPACITY, OR DRIVE TRANSMISSION | 1 |
| 20080267791 | System for the Suction of a Fluid, Having the Additional Function of Sucking Another Fluid - A suction system comprising a suction pump ( | 10-30-2008 |
| 417436000 |
TRANSVERSELY MOVABLE IMPELLING MEMBER (E.G., PADDLE) | 1 |
| 20130028767 | MOLECULAR-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 |
| 417430000 |
INCLUDING MEANS TO (1) AGITATE PUMP FLUID, OR (2) PREVENT FOREIGN MATERIAL SETTLING FROM PUMP FLUID | 1 |
| 20110200470 | COMPRESSOR - 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 |
