Class 417/240 - INERTIA LIQUID PISTON (E.G., MOMENTUM, ETC.)

Subclass of Class 417 - Pumps
Definition: Apparatus in which the pumping is effected by a body of
No. of patents: 32
Last issue date: 08/07/2007

Number	Title	Issue Date
7252148	Plunger actuated pumping system Methods and apparatus for pumping fluids from a well utilizing a submersible pumping system. In one embodiment, the pump comprises a pump body operable to be disposed within tubing within a well. The pump body encloses a pump chamber having an inlet and an outlet. T...	08/07/2007
7204679	Flow control system A flow control system includes a substantially rigid vessel with a process fluid reservoir situated in the rigid vessel is in fluid communication with an outlet. A movable member and/or a working fluid is situated in the rigid vessel so as to selectively expel proce...	04/17/2007
7171810	Stirling engine with hydraulic output A heat engine has a region within which a working fluid travels and an hydraulic fluid provided in a reservoir and the output from the heat engine drives the movement of the hydraulic fluid. ...	02/06/2007
7061161	Small piezoelectric air pumps with unobstructed airflow A T-shaped blade, or one or more hollow tubes, are vibrationally excited by one or more piezoelectric elements to generate an airflow from a free end of the blade or tube(s). The airflow may be directed to, or drawn away from, an electronic component to cool the ele...	06/13/2006
6811385	Acoustic micro-pump A microfluidic device including a fluidic pumping system is provided. Some embodiments include a fluid-carrying channel, a plurality of acoustic pumping elements arranged along the fluid-carrying channel, wherein the acoustic pumping elements are configured to form ...	11/02/2004
6511305	Oscillatory pump-conveyor for transporting liquid-solid mixture with the employment of rotational and inertial forces A biphase conveyor of a mixture of fine solid components with pasty and liquid components based on the use of rotational and periodic inertial forces is described. In accordance with the present invention the conveyor comprises a mechanism which impresses...	01/28/2003
6361284	Vibrating membrane fluid circulator A vibrating membrane fluid circulator comprising an internal hydraulic circuit made up in succession of an admission orifice (1), a pump body (2), and a delivery orifice (3), the pump body (2) defining, in operation, a space (4, 18, 30) having rigid walls...	03/26/2002
6305917	Pump consisting of a mechanism transmitting to a tubular circuit system periodic rotational inertial forces developing in the liquid contained therein continuous pressure and flow The details necessary for embodying the present invention are: a supporting frame; two rotors; a system for the periodic alternating motion thereof with phases of 0° and 90°; two tubular 2-phase circuits (CB) consisting of two parallel identical tubes t...	10/23/2001
5961296	Vacuum-generating apparatus by applying torricelli's vacuum By applying balance between atmospheric pressure and gravity, Torricelli's vacuum is formed, and by utilizing the vacuum, power is generated. When an operating tube directs to nearly the right above, because of the weight of a liquid on the inside of the ...	10/05/1999
5263341	Compression-evaporation method using standing acoustic wave A compression-evaporation refrigeration system, wherein gaseous compression of the refrigerant is provided by a standing wave compressor. The standing wave compressor is modified so as to provide a separate subcooling system for the refrigerant, so that e...	11/23/1993
5228840	Positive displacement pumps A positive displacement pump comprises a mass such as a liquid filled pressure chamber or an annular ring which is rotated at high speed about a first axis so that centrifugal force acting on the liquid or ring creates zones of differential pressure withi...	07/20/1993
5174130	Refrigeration system having standing wave compressor A compression-evaporation refrigeration system, wherein gaseous compression of the refrigerant is provided by a standing wave compressor. The standing wave compressor is modified so as to provide a separate subcooling system for the refrigerant, so that e...	12/29/1992
5102303	Hydraulic ram A hydraulic ram includes a water inlet conduit, a draining conduit with a main clapper valve and a bell or cup valve. The bell or cup valve communicates with the chamber through a plurality of individual clapper arranged parallel to one another. Each of t...	04/07/1992
4687420	Sonic pressure wave pump with liquid heating and elevating mechanism A pump for heating high viscosity oil and elevating it to a ground level from a subterranean level. The pump, which is preferrably of the type which produces and is operated by sonic pressure waves of special character, includes a ground level generator f...	08/18/1987
4540344	Energy transfer device An energy transfer device comprising a tube coiled in the form of an open helix and anchored permitting bending of the tube about the axis of the helix. The tube is bent by being oscillated about the axis of the helix alternately increasing and decreasing...	09/10/1985
4488853	Fluid pressure ratio transformer system A fluid pressure ratio transformer which may be utilized to couple pressure variations in a working fluid operating at a given input pressure ratio to a fluid coupled load operating at a different required output pressure ratio. The device is self-modulat...	12/18/1984
4482346	Apparatus for infusing medication into the body An integral valve and pumping unit is provided for infusing medication into the body which employs only one moving part. This pumping unit is connected to the medication supply reservoir through a first flow restriction device which has no moving parts bu...	11/13/1984
4473339	Liquid pump A liquid pump comprises two flexible impulsion members disposed in series between inlet and outlet openings of the pump casing. The members are engageable with sealing means to form an intermediate chamber in the casing between the inlet and outlet. Both ...	09/25/1984
4460320	Sonic pressure wave surface operated pump with extensible pumping assembly A sonic pressure wave surface operated pump is provided with a mechanism for controlled movement of a flexible production tube and pumping assembly into and out of contact with a liquid to be pumped and is provided with a sonic pressure wave generator whi...	07/17/1984
4449892	Pump with rotary sonic pressure wave generator A sonic pressure wave operated pump is provided with a rotary sonic pressure wave generator which impactingly generates sonic pressure waves of special character in a column of liquid contained in the pump with the generated sonic pressure waves being tra...	05/22/1984
4407636	Self-cleaning submersible pump A pump for pumping liquids which may contain solid debris, comprising a conduit having an orifice at its lowest region for the ingress of liquid when the lowest region is submerged in the liquid, one end of the conduit being connected to a sources of puls...	10/04/1983
4398870	Variable volume sonic pressure wave surface operated pump A variable volume single tube surface operated pump including a piston reciprocally mounted in a cylinder for alternately opening and closing a liquid delivery port formed in the sidewall of the cylinder and for generating a sonic pressure wave by impacti...	08/16/1983
4381177	Sonic pressure wave surface operated pump A single tube surface operated pump including a piston reciprocally mounted in a cylinder for alternately opening and closing a liquid delivery port formed in the side of the cylinder and for generating a sonic pressure wave by impacting a column of liqui...	04/26/1983
4341505	Sonic pressure wave pump for low production wells A sonic pressure wave surface operated pump for use in pumping liquid from low production wells. The pump includes an aboveground generator which produces sonic pressure waves of special character in a liquid column. The sonic pressure waves are transmitt...	07/27/1982
4295799	Sonic pressure wave surface operated pump A single tube surface operated pump including a piston reciprocally mounted in a cylinder for alternately opening and closing a lateral fluid delivery port and for generating a sonic pressure wave by impacting a column of fluid in a metallic tube extendin...	10/20/1981
4293285	Pump A pump for raising liquids through a height exceeding the barometric height has adjacent to an outlet of the pump a pumping chamber whereof one end is defined by a reciprocable center portion and a rubber annulus which is in non-sliding engagement with th...	10/06/1981
4171852	Propulsion of slurry along a pipeline by ultrasonic sound waves Transmission of a slurry along a pipeline by ultrasonic sound waves introduced at an angle to the direction of flow of the slurry particles to intersect the moving particles with a forward and lifting component. Ultrasonic generators or transducers are pl...	10/23/1979
4121895	Kinetic energy type pumping system The present invention relates to improvements on an "inertia" type pumping system (actually using kinetic energy) including elimination of springs in the valves, include pressure dampening or cushioning means for dampening sharp liquid pressure rises inhe...	10/24/1978
4078871	Sea wave energy conversion A fixed structure encloses a vertically spaced plurality of superimposed channels that are open at one end of the sea to receive deep sea waves approaching a shoreline. Each of the channels has an entrance ramp that slopes upwardly shorewardly to induce b...	03/14/1978
3981624	Sonic or energy wave generator and modulator A sonic or energy wave generator to create and transmit sonic or energy waves of controllable and variable characteristics and which may be utilized to transport sensible heat at sonic velocities to sonic wave or heat reception locations. Self induced or ...	09/21/1976
3941515	Centrifugal fluid pump A centrifugal fluid pump comprising a driven rotary assembly having at least two pumping stages operatively associated therewith and rotatable therewith as said rotary assembly is driven, each stage including a plurality of circumferentially spaced hydrau...	03/02/1976
3937168	Bilge pump A wave-actuated bilge pump for pumping foul bilge gases from a boat. The pump includes a generally inverted U-shaped section of hollow tubing with generally downwardly directed legs having open ends. One of the ends is positioned to receive bilge gases fr...	02/10/1976

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Class 417/240 - INERTIA LIQUID PISTON (E.G., MOMENTUM, ETC.)