Class 417/343 - Including mechanical interconnection to cause relative motion

Subclass of Class 417 - Pumps
Definition: Apparatus in which there is provided mechanical motion constraining
No. of patents: 26
Last issue date: 09/20/2005

Number	Title	Issue Date
6946751	Wind power generation system A wind power generation system capable of outputting generated power at high efficiency with a smoothed output power includes a wind power generator and a laser aerovane mounted on the wind power generator or located near the wind power generator. Direction and velo...	09/20/2005
5707217	Pressure transfer modules The invention comprises an improved pressure transfer module having, in one embodiment, two double-diaphragm pumps each having its diaphragms connected to one another by a respective drive shaft for reciprocating motion. Spool valve assemblies are mounted...	01/13/1998
5152675	Piston pump with anti-leakage control A single acting, piston type pump comprises a pair of cylinders, and a pair of pistons mounted in respective cylinders for reciprocal movement within the cylinders. The pistons are interconnected with one another so that while one piston is moving upward ...	10/06/1992
5127806	Thick matter pump with downstream shutoff device A thick matter pump has two feed cylinders, each including an opening coupled in fluid communication with a material feed tank containing matter to be pumped. A tube switch is adapted to be alternately coupled on its intake side to the openings of the fee...	07/07/1992
5088898	Reciprocating pump A reciprocating pump comprises a plurality of pump sections, each pump section having a suction inlet and a discharge outlet, the inlets all connecting with a common passageway through which the pumped fluid is supplied and the outlets all connecting with...	02/18/1992
4838770	Pumping device A pumping mechanism comprising a flat base having a central vertical post and a pair of reciprocal pumping elements mounted on the flat base and situated on either side of the central post. Each of the pumping elements comprises an upper moveable assembly...	06/13/1989
4806079	Apparatus for simultaneously pumping a plurality of liquids Apparatus for simultaneously pumping two or more different liquids to a spraying device has a pair of discrete diaphragm pumps for each liquid. The pumps of each pair are connected in parallel and operate alternatingly so that one pump delivers a metered ...	02/21/1989
4776304	Movement converter for use in an engine and the like A movement converter for use in a combustion engine or as an air compressor wherein reciprocating motion of a piston is converted to rotational motion of an output shaft or a rotational motion of an input shaft is converted to a reciprocating motion of th...	10/11/1988
4752192	Rotating drum pump having a plurality of fluid driven pistons A rotating drum pump having a plurality of fluid driven pistons includes a pump housing with an enclosed rotating drum, and connection openings for a supplied and discharged driving fluid and for a supplied and discharged pump flow located in end walls of...	06/21/1988
4729720	Apparatus for continuously generating hydraulic pressure An apparatus for generating high hydraulic pressure with reduced pulsations, comprising a valve case attached to a motor main body and having a plurality of pneumatic cylinder units arranged therearound, a rotary valve rotatably fitted in the valve case, ...	03/08/1988
4676311	Multiwell pumping device A pumping device and an efficient method of pumping petroleum from two or more low pressure wells of close proximity. The device consists of a motor that rotates a drive sprocket in a clockwise direction and a counter clockwise direction. The sprocket has...	06/30/1987
4515296	Variable ratio liquid metering dispenser A variable speed ratio system for the controlled dispensing of a plurality of non-compressible fluids at high pressure, principally for use in reaction injection molding processes. Each of the pistons in two or more displacement cylinders that contain the...	05/07/1985
4432876	Reverse osmosis apparatus and method incorporating external fluid exchange Reverse osmosis pump using a fluid volume exchange structure interconnecting pumping and expansion chambers of feed cylinder externally of feed cylinder. This structure permits exchange of volume between pumping and expansion chambers following initiation...	02/21/1984
4373873	Hydrostatic and oil well pump A pump (10) is provided for pumping a fluid (14) from a borehole (12). The pump includes first and second pumping strings (20, 22) extending into the borehole and a return string (50) extending out of the borehole and to a storage tank (18). An upstroke c...	02/15/1983
4344286	Energy converter machine An energy convertor machine generally includes an elongated member and at least two sets of one or more elastomeric bag members, each elastomeric bag member having a liquid with a low vaporization temperature disposed therein, wherein heating means and a ...	08/17/1982
4344742	Engine apparatus This invention relates to internal combustion engines, the energy output of which is produced as hydraulic pressure, and in one embodiment comprises two, two-cycle internal combustion engines which face each other, the piston rods of each of which are axi...	08/17/1982
4281257	Wave powered generator A machine that includes a tank in which air is compressed so the air is used to drive an electricity generating mechanism that includes an air grinder or air turbine powering an alternator in an electric circuit, and the air compressor being driven by nat...	07/28/1981
4174788	Batching plant for lime concrete A batching pump for lime concrete comprising a base, a longitudinal displacement feeder attached to said base, at least one evacuator conduit attached to said base, at least one cylinder for receiving at one end thereof lime concrete and pumping lime conc...	11/20/1979
4147477	Pumping apparatus particularly for oil wells A pair of pumps which are joined by a flexible connection passing over spaced rotatable devices positioned for rotation in a substantially vertical plane. The rotatable devices are driven alternately in clockwise and counterclockwise directions whereby th...	04/03/1979
4140440	Internal combustion piston engine-driven piston pump with hydraulic pressure return of combustion piston from BDC This invention relates to internal combustion engines, the energy output of which is produced as hydraulic pressure, and in one embodiment comprises two, two-cycle internal combustion engines which face each other, the piston rods of each of which are axi...	02/20/1979
4118799	Apparatus for transferring metered quantities of material from one location to another Apparatus is provided for moving controlled quantities of a material from one location to another and increasing the pressure thereof. The apparatus includes at least two cylinders having rams reciprocable therein. The rams are driven by a rocker arm whic...	10/03/1978
4093405	Fuel-operated device Apparatus having fuel combustion cylinders for urging the rods of pistons operating therein through power strokes, and fluid pressure pistons, also operating in cooperating cylinders, which are correspondingly urged during said power strokes through movem...	06/06/1978
4063825	Pumping apparatus particularly for oil wells A pair of pumps which are joined by a flexible connection passing over a rotatable device positioned for rotation in a substantially vertical plane. The rotatable means is driven alternately in clockwise and counterclockwise directions whereby the lifting...	12/20/1977
4030860	Variable proportional metering apparatus A fluid metering apparatus having paired cylinders, pistons and piston rods. The piston rods are connected to a lever or walking beam which, when pivoted at its center equidistant between the rod connections provides controlled equal travel distance and r...	06/21/1977
4011842	Piston machine Reciprocating piston machine having a pair of spaced, parallel, double-ended cylinders straddling a crankshaft with a single crankpin. First and second double-ended pistons reciprocate within respective cylinders and are connected to crankshaft by T-shape...	03/15/1977
3958898	Pump control systems A compact pumping system especially useful in liquid chromatography wherein comprising a liquid path which is fully flushed on each stroke of a pump, a pump which provides substantially pulse-free flow, a pressure-sensor integrated into said flow path and...	05/25/1976

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Class 417/343 - Including mechanical interconnection to cause relative motion