Spring Or Weight Motor Patents (Class 417/328)
  • Patent number: 9205440
    Abstract: The Dispenser for sucking back contents is provided, which makes it possible to prevent over consumption of contents in such a way to suck back the contents remaining at an end portion of a nozzle of a button of a dispenser after the contents are discharged and used, and also makes it possible to prevent a container body from being contaminated by contents.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 8, 2015
    Assignee: YONWOO CO., LTD.
    Inventor: Young-Moo Bae
  • Patent number: 9197722
    Abstract: A heat dissipating apparatus includes a rear cove, a fan rotatably attached to the rear cover, a slave gear secured to the fan, and a driving gear rotatably attached to the rear cover. The rear cover defines a plurality of air ventilation holes. The fan is aligned with the plurality of air ventilation holes. The driving gear meshes with the driven gear. A resilient member is secured to the driving member. The driving gear is rotatable in a first direction to deform the resilient member. The resilient member is released to rotate the driving gear in a second direction that is opposite to the first direction, and the slave gear and the fan are together rotatable in the second direction by the driving gear.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: November 24, 2015
    Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chih-Hao Yang, Xiang-Kun Zeng, Bao-Quan Shi
  • Publication number: 20150147201
    Abstract: A pumping device is used with a pneumatic tire mounted on a tire rim to keep the pneumatic tire from becoming underinflated. The device includes a pumping device attached to the tire rim, a dynamic mass mechanically confined to rotational movement relative to the pumping device and the tire rim, the dynamic mass moving in response to a minimum angular acceleration and a minimum angular velocity of the tire rim and pumping ambient air into the pumping device, an intake port for ambient air to enter the pumping device, and an exhaust port for forcing pressurized air into a tire cavity of the pneumatic tire for restoring air loss from an inflation volume within the tire cavity, the dynamic mass and the pumping device both being weighted equally on each side of a centerline of the tire rim.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventor: Jean-Claude Patrice Philippe Griffoin
  • Publication number: 20150147199
    Abstract: A pumping device is used with a pneumatic tire mounted on a tire rim to keep the pneumatic tire from becoming underinflated. The pumping device includes a housing attached to the tire rim, a dynamic mass mechanically confined to linear movement relative to the housing and the tire rim, the dynamic mass moving in response to shock loads transferred from the tire rim to the dynamic mass and pumping ambient air into the housing, an intake port for ambient air to enter the housing, and an exhaust port for forcing pressurized air into a tire cavity of the pneumatic tire for restoring air loss from an inflation volume within the tire cavity.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Surendra Kumar Chawla, Shawn William Dellinger, William Eugene Rabbitt, James Edward Szpak, Jeffrey Silver Taggart, Marc Louis Vitantonio
  • Publication number: 20150147198
    Abstract: A pumping device is used with a pneumatic tire mounted on a tire rim to keep the pneumatic tire from becoming underinflated. The pumping device includes a housing attached to the tire rim, a dynamic mass mechanically confined to radial movement relative to the housing and the tire rim, an intake port for ambient to enter the housing, and an exhaust port for forcing air into a tire cavity of the pneumatic tire for restoring air loss from an inflation volume within the tire cavity.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Surendra Kumar Chawla, Shawn William Dellinger, William Eugene Rabbitt, James Edward Szpak, Jeffrey Silver Taggart, Marc Louis Vitantonio
  • Publication number: 20150147200
    Abstract: A pumping device is used with a pneumatic tire mounted on a tire rim to keep the pneumatic tire from becoming underinflated. The pumping device includes a housing attached to the tire rim, a dynamic mass mechanically confined to rotational movement relative to the housing and the tire rim, the dynamic mass moving in response to a minimum angular velocity of the tire rim and pumping ambient air into the housing, an intake port for ambient air to enter the housing, and an exhaust port for forcing pressurized air into a tire cavity of the pneumatic tire for restoring air loss from an inflation volume within the tire cavity.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Surendra Kumar Chawla, Shawn William Dellinger, William Eugene Rabbitt, James Edward Szpak, Jeffrey Silver Taggart, Marc Louis Vitantonio
  • Patent number: 8920135
    Abstract: A multipurpose gravity air compressor employs a piston (40) traveling down a cylinder (129) by the force of gravity compressing compressible fluid (140) in one or more compressible fluid chambers (137). Compressed fluid is emptied out of compressible fluid chambers (137) through compressible fluid exit (118) for use locally or downstream. A transporter such as transporter assembly 50 grabs piston (40) and recovers it back to opening (124) at predetermined intervals and deposits piston (40) into cylinder (129) to start another cycle. Multipurpose gravity air compressor through the generation of heat through compressing compressible fluid (140) also enjoys being a heat source. Air compressor 200 can provide a means for producing energy through compressing compressible fluid (140) and a source of heat for generating steam to produce electricity on-site or downstream. Water (condensation), possibly thousands of gallons a year, could be another rainfall-independent water source advantage enjoyed.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 30, 2014
    Inventor: Dennis Eugene Daily
  • Publication number: 20140241911
    Abstract: The present invention relates to compressor leaf springs, in particular, linear compressor leaf springs; the leaf springs comprising at least one spacer (3) disposed between at least a pair of flat springs (2), each flat spring (2) being comprised by at least one outer ring (21), at least one inner ring (22) and at least one connection extension (23) which connects an outer rim (21) to an inner ring (22); According to the present invention, it is defined at least one section of physical contact between at least a pair of outer rims (21) defined by at least one spacer (3), at least one section of physical contact between at least a pair of inner rims (22) defined by at least one spacer (3), and at least one free section of physical contact between at least two connection extensions (23) adjacently arranged.
    Type: Application
    Filed: June 21, 2012
    Publication date: August 28, 2014
    Applicant: WHIRLPOOL S.A.
    Inventors: Alisson Luiz Roman, Celso Kenzo Takemori, Ingwald Vollrath, Paulo Rogerio Carrara Couto
  • Publication number: 20140003969
    Abstract: An energy extraction system for a rotational surface including a drive mechanism having a rotational axis and configured to rotatably couple to the rotational surface and an energy extraction mechanism coupled to the drive mechanism. The drive mechanism includes a cam rotatable about the rotational axis and an eccentric mass coupled to the cam that offsets a center of mass of the drive mechanism from the rotational axis, the eccentric mass cooperatively formed by a first and a second section, the eccentric mass operable between a connected mode wherein the first and second sections are adjacent and a disconnected mode wherein the first and second sections are separated. The energy extraction mechanism is connected to the cam and is statically coupled to the rotating surface, wherein the energy extraction mechanism configured to extract energy from relative rotation between the energy extraction mechanism and the cam.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 2, 2014
    Applicant: Aperia Technologies
    Inventor: Brandon Richardson
  • Patent number: 8272845
    Abstract: Systems and methods for asymmetrical pumping in low speed, low volume fluid recovery. According to the system and method, fluid is recovered from a well using an asymmetrical recovery motion. A walking beam is actuated about a first pivot point between an upstroke motion and a downstroke motion in response to rotation of a crank wheel. The crank wheel rotates more than 180 degrees during the upstroke and rotates less than 180 degrees during the downstroke. Further, the walking beam and the crank wheel are in communication with one another by an arm extending there between, wherein the arm is positioned on an opposite side of the first pivot point from the well.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 25, 2012
    Inventor: Jerry L. Watson
  • Publication number: 20120230847
    Abstract: The invention relates to a vibrating armature pump having a pump housing, which comprises a cylinder for receiving a substantially linearly displaceable pump piston unit (10). The pump piston unit (10) comprises at least one pump element (11) for pumping the pumping fluid and a drive element (12) for driving the pump element (11). Both elements are designed separately and arranged loosely one behind the other.
    Type: Application
    Filed: September 8, 2010
    Publication date: September 13, 2012
    Applicant: Vermietungsgesellschaft Harald Schrott & Sysko AG GbR
    Inventor: Rudolf Lonski
  • Publication number: 20110200463
    Abstract: The invention relates to a pump, particularly a high-pressure fuel pump, having a housing, a drive shaft that is rotationally driven and has at least one drive section, and at least one pump piston, which is guided in a cylinder bore of a housing part of the pump in a sealed manner and which is driven by the drive section of the drive shaft at least indirectly in a lifting motion. The at least one pump piston is acted on by a spring element at least indirectly toward the drive section of the drive shaft. The spring element is disposed on the side of the drive shaft opposite the pump piston, and via a coupling device extending past the drive shaft it engages at least indirectly on the pump piston.
    Type: Application
    Filed: August 1, 2008
    Publication date: August 18, 2011
    Inventor: Friedrich Boecking
  • Patent number: 7963750
    Abstract: A hydraulic pump comprises a moving pressing member to compress a lower reservoir to move downward, and to move upward according to the change of buoyancy by the supply and discharge of the water into an inner space of the moving pressing member. A pumping pipe transports water in the lower reservoir outside of the pump.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: June 21, 2011
    Inventor: Tuyoshi Yasoshima
  • Patent number: 7942652
    Abstract: A reciprocating liquid or gas pump is driven by bi-directional force. A prime mover causes eccentric weights to rotate, which in turn cause pistons to be driven in linear paths under bi-directional force. This bi-directional force then drives opposing sets of pistons to pump a fluid. The pressurized fluid can then be used for, e.g., driving a hydraulic motor.
    Type: Grant
    Filed: November 29, 2009
    Date of Patent: May 17, 2011
    Inventor: Lawrence D. Murray
  • Patent number: 7832989
    Abstract: The pump comprises a pump body, a control member, an elastic member, and blades. The pump body has a holding space, one or more pump inlets, and one or more pump outlets. The holding space, the pump inlets, and the pump outlets communicate with each other. The pump outlets communicate with a fuel outlet of the fuel storage device; while the pump inlets communicate with a fuel reservoir of the fuel storage device. The control member passes through the fuel storage device and is rotatably set in the holding space. The elastic member is set fixed on the pump body and connects with the control member. The blades are set in the holding space and connect with the control member. Thereby, no extra energy is needed for the pump to transport the fuel from the fuel reservoir to the fuel cell.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: November 16, 2010
    Assignee: Wistron Corporation
    Inventors: Shung-Huei Chang, Shu-Hao Liang
  • Patent number: 7458786
    Abstract: An improved oil well pumping unit and method thereof configured for use on new or existing oil wells. The present invention is for mechanical operation of the subsurface pump and replaces existing mechanical pumping units. The present invention multiplies input purchased energy through mechanical links, pressurized fluid and/or gas, moving weights and counterweights and a control system in order to pump produced fluid through a new or existing conventional reciprocating oil well pump.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: December 2, 2008
    Inventor: Robert George Mac Donald
  • Patent number: 7406887
    Abstract: A pumping unit system having vertical sampson post, a walking beam pivotally supported at the upper end of the sampson post and a horsehead affixed at a forward end thereof that supports a reciprocated sucker rod string, including a gear reducer mounted at selectable positions on the walking beam and having a horizontally extending drive shaft, a crank arm affixed to the drive shaft the spacing between a selectable length pitman rod having a first end secured to said crank arm and a second end having a pitman bearing that is selectably mountable to a plurality of pitman bearing locations and a prime mover connected to the gear reducer and wherein the characteristics of the pumping unit are determined by the selectable position of the gear reducer, the selectable length of the crank arm, the selectable length of the pitman rod, and the selectable pitman bearing location.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: August 5, 2008
    Inventor: James B. Jensen
  • Patent number: 7402028
    Abstract: A pressurization device is described mobilizing gravity to mobilize seawater and to employ a weight (56) for gravitionally applying a force to and thereby pressurizing an enclosed pocket (58) of seawater, resulting in low energy utilisation. Energy is further recovered from the flow of pressurized seawater that is supplied to the desalination system (20), resulting in a mechanically robust and energy efficient pressurization system.
    Type: Grant
    Filed: June 29, 2002
    Date of Patent: July 22, 2008
    Inventor: Shih Yi Wong
  • Patent number: 7198474
    Abstract: A pump having a linearly movable shaft, a rotatable hub operably connected to the shaft, and shape memory actuator operably connected to the rotatable hub, and a fuel cell system including the same.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: April 3, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alan R Arthur, Gary J. Watts
  • Publication number: 20040247459
    Abstract: A device for converting gravitational force to energy. The device comprises a rotor. The rotor comprises an upper portion, a lower portion and a casing. A lower cavity and an upper cavity are provided in flow communication with each other. A piston is slidably received in the casing between the lower cavity and the upper cavity. When the piston slides in the casing towards the lower cavity displacement fluid exits the lower cavity and enters the upper cavity thereby causing the upper portion to be heavier than the lower portion. A pivot is provided wherein the rotor can rotate such that the upper portion becomes lower than the lower portion. A shaft is provided which is parallel to the pivot and capable of rotating with the rotor. A generator is coupled.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Inventor: Steven W. Elliott
  • Patent number: 6701908
    Abstract: Apparatus for storing and discharging gas includes a housing having an inlet and an outlet. A floating differential piston is mounted to reciprocate in the housing and divide the housing into a storage chamber adjacent the housing inlet and a discharge chamber adjacent the housing outlet. A check valve in the housing inlet admits gas to the storage chamber. A conduit extends through the piston from the storage chamber to the discharge chamber. A pressure relief valve in the conduit is set to maintain a higher pressure in the storage chamber than in the discharge chamber. A first sliding seal is disposed between the housing and an end of the piston adjacent the housing inlet. A second sliding seal is disposed between the housing and an end of the piston adjacent the housing outlet.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: March 9, 2004
    Inventor: Alfred F. Nibecker, Jr.
  • Patent number: 6655224
    Abstract: A downward offset barbell type walking beam compositively balance oil pump, in which at the rear end of the walking beam is mounted a downward offset barbell type balancing device consisting of a shoe plate, a cross shaft and balancing pieces, retains most of the structure of the conventional walking beam oil pump, and has a compact structure, a wide range of moment change, an advantage of saving electricity to a degree of more than 40 percent, and is safe and reliable for operation. The present invention can be applied to the renovation of variety of conventional walking beam oil pumps, used in oil fields, outphase crankshaft oil pumps and walking beam compositively balance oil pumps for the purpose of energy-saving or of promotion of the capacity for oil extraction of the above-mentioned oil pumps.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: December 2, 2003
    Assignee: No. 3 Machine Tool Plant of the Xinjiang
    Inventors: Xiangyun Ji, Shengeun Yu, Renquan Luo, Weidong Zhao, Yuzhen Wei, Wuanjiany Zhang
  • Publication number: 20030198558
    Abstract: Apparatuses and methods for pumping fluid are disclosed. An exemplary apparatus is a miniature pump that includes a shape memory wire that obtains a plastic condition below a transformation temperature and has a memorized shape such that the shape memory wire produces a work stroke by returning to the memorize shape at least at the transformation temperature. A spring biased against the shape memory wire is deflected by the work stroke to deform the shape memory wire from the memorized shape below the transformation temperature. A fluid pump is coupled to the shape memory wire and driven by the biased spring and shape memory wire to produce a fluid flow. The miniature pump can be incorporated into a self-contained infusion device in the form of a compact self-adhesive patch including a fluid reservoir, control electronics and power supply that is place directly at the infusion site of a user.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 23, 2003
    Inventors: Clyde K. Nason, William H. Stutz, Darren Y. Yap
  • Patent number: 6631787
    Abstract: A lubrication system for a vibratory apparatus such as a hydraulic striking device. The system includes a lubricant pump for pumping lubricant to one or more points of lubrication on the device and a drive for the pump powered in response to vibration of the device. The system includes a base for attachment to the device for vibration therewith, and a lubricant pump for pumping lubricant from a supply. The pump includes a cylinder and a plunger reciprocable in the cylinder through a stroke between a retracted position for intake of lubricant into the cylinder and a forward position for delivery of the intake from the cylinder. A weight is mounted on the base for oscillation in response to the vibration of the device, oscillation of the weight effecting reciprocation of the plunger through a stroke.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: October 14, 2003
    Assignee: Lincoln Industrial Corporation
    Inventors: Paul G. Conley, Thomas M. Arens, Zdravko Paluncic, Andreas Schoenfeld
  • Patent number: 6506030
    Abstract: A reciprocating pump includes a cylinder with a closed interior compartment; a piston assembly which is moveably mounted within the compartment for reciprocating movement; a linear magnetic drive generates a linearly moving magnetic field for moving the piston assembly; a sealing member between the cylinder and the piston assembly to divide the interior compartment of the cylinder into a dispensing chamber and a reservoir chamber; and an energy storage and release media. In certain preferred embodiments, the pumps are hermetic and the energy storage and release media includes a gaseous substance in the reservoir chamber.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: January 14, 2003
    Assignee: Air Products and Chemicals, Inc.
    Inventor: William Curtis Kottke
  • Patent number: 6386322
    Abstract: A walking beam pumping system is disclosed wherein the pumping system's prime mover is gravity. In one embodiment, the system comprises a walking beam pivotally coupled to a support structure at a pivot point substantially central along the length of the walking beam. A counterbalance weight is disposed along the length of the walking beam. A position device is provided for moving the counterbalance weight along at least a portion of the length of the walking beam. As the counterbalance weight moves along the length of the walking beam, the beam's center of gravity is modulated. By modulating the position of the counterbalance weight in an appropriate manner, the walking beam is caused to pivot back and forth with respect to the support structure. A pumping assembly, for example a sucker rod string, is attached to one end of the walking beam, such that as the walking beam pivots back and forth, the pumping system is actuated to pump fluid out of, for example, an oil well bore.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 14, 2002
    Assignee: Baldor Electric Company
    Inventor: James McCormick
  • Patent number: 6203288
    Abstract: A reciprocating pump includes a cylinder with a closed interior compartment. A piston assembly has a dispensing end and an opposed end and is moveably mounted within the compartment for reciprocating movement in opposed linear directions between opposed ends of the closed interior compartment. A linear magnetic drive generates a linearly moving magnetic field for moving the piston assembly in opposed linear directions through a swept volume in each of said opposed linear directions, one of said linear directions being a dispensing stroke and the other of said linear directions being a suction stroke. A sealing member is provided between the cylinder and the piston assembly to divide the interior compartment of the cylinder into a dispensing chamber and a reservoir chamber.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: March 20, 2001
    Assignee: Air Products and Chemicals, Inc.
    Inventor: William Curtis Kottke
  • Patent number: 6076516
    Abstract: A air circulator for an oven includes a housing having inlet and outlet walls with openings in each wall for permitting air to pass through the housing. The air circulator further includes a fan assembly within the housing having a rotatable fan element and a plurality of fan blades attached radially about the fan element for drawing air through the housing upon rotation of the fan element. A spring motor assembly is positioned within the housing and coupled with the fan assembly for rotating the fan element. The air circulator further includes a heat sensitive switch formed of a combination of metals which contracts upon an increase in the ambient air temperature of the oven for activating the spring motor.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: June 20, 2000
    Inventor: Iler D. Tucker
  • Patent number: 5988991
    Abstract: Disclosed is a simplified energy transforming structure which utilizes the weight of water stored at high position to pull up a heavy piston in a hydraulic cylinder, so that the piston can thereafter descend due to gravity and forces water flowing into the hydraulic cylinder to pass a predetermined passage toward a functional device in the form of high pressure water full of kinetic energy, causing the functional device to operate and achieve a desired function.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: November 23, 1999
    Inventor: Jui-An Tsai
  • Patent number: 5941692
    Abstract: Disclosed is a tuned resonant oscillating mass pump, and particularly a pump structure and assembly which can be conveniently and readily mounted inside automotive tires for the purposes of maintaining optimum tire pressure and generating of electrical power from the movement of the tuned oscillating mass in such pumps. The oscillating mass can be a pendulum or a freely moving weight or a ball rolling within an arcuate chamber.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: August 24, 1999
    Assignee: Hughes Electronics Corporation
    Inventors: Ross D. Olney, William S. Griffin, Donald K. Murphy
  • Patent number: 5934882
    Abstract: A tuned resonant oscillating mass pump is shown, and particularly a pump structure and assembly which can be conveniently and readily mounted inside automotive tires for the purposes of maintaining optimum tire pressure and generating of electrical power from the movement of the tuned oscillating mass in such pumps. The oscillating mass can be a pendulum or a freely moving weight or a ball rolling within an arcuate chamber.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: August 10, 1999
    Assignee: Hughes Electronics Corporation
    Inventors: Ross D. Olney, William S. Griffin, Donald K. Murphy
  • Patent number: 5707215
    Abstract: Disclosed is a tuned resonant oscillating mass pump, and particularly a pump structure and assembly which can be conveniently and readily mounted inside automotive tires for the purposes of maintaining optimum tire pressure and generating of electrical power from the movement of the tuned oscillating mass in such pumps. The oscillating mass can be a pendulum or a freely moving weight or a ball rolling within an arcuate chamber.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: January 13, 1998
    Assignee: Hughes Aircraft Company
    Inventors: Ross D. Olney, William S. Griffin, Donald K. Murphy
  • Patent number: 5645056
    Abstract: A pump that can be adjusted to vary the volumetric output of the pump. The pump has a flexible housing that defines an inner pump chamber. The flexible housing can be collapsed by the user to discharge the contents of the inner chamber. Integral with the housing is an outer spring that returns the pump to the original extended position when the housing is released by the user. The pump further includes one-way valves that allow air to flow into and out of the inner chamber. Wrapped around the housing is a belt that controls the extended volume of the inner chamber and the corresponding volumetric output of the pump. The belt can be adjusted to vary the size of the inner chamber and the volumetric output of the pump. The belt may have different settings that define the amount of air provided by the pump. When used as part of a resuscitator unit, the belt can be adjusted to match the volumetric output of the pump with the lung capacity of the patient.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: July 8, 1997
    Assignee: Survival Resources, Inc.
    Inventor: Paul E. Pomeroy
  • Patent number: 5484268
    Abstract: A positive displacement centrifugal pump comprises (a) a pressure generating mass rotatable about a first axis and radially movable relative to it upon rotation of the mass, (b) a pumping unit, and (c) a flexible, non-elastic tensioning element operatively connected to the mass and operable in the course of rotation of the mass to cause the mass to move radially inwardly toward the axis so as to effect intake and/or exhaust of fluid within the pump.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: January 16, 1996
    Assignee: Impact MST Incorporated
    Inventor: Robert P. Swank
  • Patent number: 5346369
    Abstract: A pump actuated by a reciprocal oscillating motion, the pump including a casing member enclosing an elongated substantially cylindrical chamber therewithin, a pair of flexible bellows disposed at the opposing distal ends of the chamber, each of the bellows, in a normal unflexed state, extending inward into the chamber, and each of the bellows enclosing a pumping chamber, each of the pumping-chambers having a one way intake port and a one way output port, a piston positioned within the chamber for reciprocation therewithin under the influence of gravity in response to the reciprocal oscillating motion, the piston including a substantially spheroid member, the piston having a reciprocal stroke such that, at the extremes of the reciprocal stroke, the piston alternately compresses each of the flexible bellows, thereby alternately decreasing the volume of each of the pumping, and a cap member disposed at each of the distal ends of the casing member, each of the cap members abutting one of the flexible bellows to t
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: September 13, 1994
    Inventor: William L. Miller, Jr.
  • Patent number: 5340283
    Abstract: A method and apparatus for producing compressed air includes sealing air in a container capable of reducing its volume by external hydraulic pressure. A weight having a larger specific gravity than water is attached to the container to sink the container deep under water. Compressed air is produced when the volume of the container is reduced by hydraulic pressure, and is transferred into a recovery vessel connected to the container via a check valve. The weight is then separated from the container use and cause the container to float on the water by the action of buoyancy. The compressed air can then be recovered from the recovery vessel.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: August 23, 1994
    Inventor: Tsugio Nagata
  • Patent number: 5297944
    Abstract: The disclosure relates to a collapsible flexible pump which includes an inflatable spring and framework. The inflatable spring framework is formed by attaching a layer of flexible material over selected exterior portions of the flexible material pumping chamber to form a passageway therebetween. Inflation of the inflatable spring framework via an inflation valve, results in the collapsed flexible pump distending into a three dimensional pumping chamber inscribed by the inflated spring framework. The pumping chamber includes appropriate inlet and discharge valves. By applying a compressive force to the pumping chamber, the volume of fluid within the pumping chamber is forced out through the discharge valve. The restoring tendency of the distended inflatable spring framework returns the pump chamber to the extended position on the returning intake stroke. A plurality of exemplary inflatable articles are disclosed.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: March 29, 1994
    Assignee: Survival Resources, Inc.
    Inventor: Paul E. Pomeroy
  • Patent number: 5205720
    Abstract: A method and apparatus for producing compressed air includes sealing air in a container capable of reducing its volume by external hydraulic pressure. A weight having a larger specific gravity than water is attached to the container to sink the container deep under water. Compressed air is produced when the volume of the container is reduced by hydraulic pressure, and is transferred into a recovery vessel connected to the container via a check valve. The weight is then separated from the container to cause the container to float on the water by the action of buoyancy. The compressed air can then be recovered from the recovery vessel.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: April 27, 1993
    Inventor: Tsugio Nagata
  • Patent number: 5201968
    Abstract: Apparatus for harnessing and utilizing, inter alia, cyclic forces generated at a location eccentric from the axis of rotation of a rolling wheel. The apparatus may include, for example, pumps that can be attached to the valve stem of an automobile wheel in order to pressurize under-inflated tires and maintain tire pressure at a preset value.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: April 13, 1993
    Assignee: Cycloid Company
    Inventor: Grant J. Renier
  • Patent number: 4990062
    Abstract: 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 within the interior of the pressure chamber or along the wall of the ring. At least one pumping unit having a pressure-responsive member is oscillated or rotated between the zones of differential pressure while the center of gravity of the pressure chamber or ring is maintained at a fixed distance from the first axis. In the course of moving into one zone having one pressure, the pressure-responsive member of the pumping unit is effective to intake a fluid such as air into the pumping unit. Air is discharged from the pumping unit by the pressure-responsive member in the course of moving from such one zone into another zone having a different pressure.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: February 5, 1991
    Assignee: Impact MST Incorporated
    Inventor: Robert P. Swank
  • Patent number: 4842495
    Abstract: A pump assembly (1) for an atomizing piston pump comprising a piston (16) slidably located in a cylinder (4), a variable volume fluid storage chamber (5) in communication with the cylinder on one side of the piston, means (18) for varying the volume of the chamber, resilient means (17) urging the varying means into a position corresponding to the minimum volume of the chamber, a fluid flow passageway (30, 31) through the piston, a resilient valve member (25) normally closing the passageway and deforming means (23) for deforming the valve member so as to open the passageway only after the piston has moved relative to the cylinder by a predetermined amount greater than zero. The pump assembly has application to dispensing metered doses of medicinal products and ensures that the dispensed dose is independent of finger pressure applied to the actuator.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: June 27, 1989
    Assignee: Bespak Plc
    Inventor: David J. Howlett
  • Patent number: 4799574
    Abstract: A device for supplying a lubricant to a mechanism, particularly a rolling bearing, comprising a container for holding a quantity of lubricant and having at its lower end a discharge channel for the lubricant, and expulsion means disposed within the container for expelling the lubricant through the discharge channel. The expulsion means includes a displacement pump having a rotary part mounted in the discharge channel, a shaft coupled to the rotary part, shaft drive means and intermittent means coupled to the shaft drive for intermittently permitting the shaft drive means to be coupled to the shaft so as to rotate said shaft.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: January 24, 1989
    Assignee: SKF Industrial Trading & Development Co. B.V.
    Inventor: Johan C. M. Bras
  • Patent number: 4679986
    Abstract: An energy-conserving refrigeration apparatus which employs a atmospheric pressure and vacuum-pressure actuated partial compressor for a refrigerant gas in combination with a conventional prime mover-driven compressor and also achieves lower compressor head pressure and increased condenser cooling of the refrigerant gas.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: July 14, 1987
    Inventor: Milburn E. Dupre
  • Patent number: 4595346
    Abstract: Two flanged sleeves, closed and valved at one end, and a bonnet with two gudgeons act as a cylinder-piston mechanism for pumping. The upper sleeve is movable and spring-loaded, accepts and is filled with liquid. When the bonnet is depressed, through its gudgeons, upper valve is closed, upper sleeve is pushed down, lower valve is constrained open, and the content is pumped into a discharge.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: June 17, 1986
    Inventor: Edward Bozoyan
  • Patent number: 4568011
    Abstract: A vacuum pump for a desoldering iron gun which comprises a cylinder closed at one end with a piston movable in the cylinder, and device including a valve connecting the closed end of the cylinder to the gun. A spring normally urges the piston away from the closed end of the cylinder, and drive linkage connects the piston to a motor for moving the piston toward the closed end of the cylinder against the urging of the spring. Latch device holds the piston in position adjacent the closed end of the cylinder. Trip device for releasing the latch is operated by the same motor. Operation is initiated by a switch on the gun that starts the motor, causing the trip mechanism to release the latch, and the spring to force the piston away from the closed end to produce a partial vacuum. The motor continues to run through its cycle, again compressing the spring and moving the piston back to its latched position.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: February 4, 1986
    Inventors: Clyde B. DeArmitt, Samuel F. Sims, Bjorn Westly
  • Patent number: 4557671
    Abstract: An improved arrangement for connecting a diaphragm and an actuator rod in a diaphragm-operated device, which is simple in construction and easy to assemble or disassemble. The arrangement includes a diaphragm of elastic material having a movable central portion and a connection boss formed at the movable portion. The connection boss has a blind bore in which is fitted an actuator rod for elastic engagement. A retainer is fitted over the outer periphery of the connection boss for restraining deformation of the connection boss. The retainer is urged against the diaphragm by means of a return spring which acts to resiliently urge the diaphragm in one direction.
    Type: Grant
    Filed: October 16, 1984
    Date of Patent: December 10, 1985
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kenichi Motoki, Nobuyasu Ushiroyama
  • Patent number: 4449363
    Abstract: A magnet attracts succeeding sites distributed about the periphery of a disk causing the disk to rotate. The resulting centrifugal force pulls radially outwards a plurality of piston-like weights mounted on the disk lowering the pressure within a housing for the weights and in a vacuum tank to which the housing is communicated via a check valve. When the weights are all the way out, they operate a trip which renders the magnet temporarily ineffective. Springs return the weights back toward the center of the disk. The vacuum tank is communicated to an opposed piston engine via timed valves which alternately communicate the engine cylinders to the vacuum, for oscillating the opposed pistons. A crank shaft connected to these pistons converts the reciprocating motion to rotary motion.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: May 22, 1984
    Inventor: Willard R. Custer
  • Patent number: 4449894
    Abstract: A centrifugal compressor (50) includes at least one pair of cylinders (56 and 58) arranged in coaxial alignment and supported for angular displacement about a common axis of rotation (84) normally bisecting a common longitudinal axis of symmetry for the cylinders. The cylinders are characterized by ported closures (64 and 66) located at the mutually remote ends thereof through which the cylinders are charged and discharged, and a pair of piston heads (68 and 70) seated within the cylinders and supported for floating displacement in compressive strokes in response to unidirectional angular displacement imparted to the cylinders.
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: May 22, 1984
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Walter H. Higa
  • Patent number: 4403539
    Abstract: An improved arrangement for connecting a diaphragm and an actuator rod in a diaphragm-operated device, which is simple in construction and easy to assemble or disassemble. The arrangement includes a diaphragm of elastic material having a movable central portion and a connection boss formed at the movable portion. The connection boss has a blind bore in which is fitted an actuator rod for elastic engagement. A retainer is fitted over the outer periphery of the connection boss for restraining deformation of the connection boss. The retainer is urged against the diaphragm by means of a return spring which acts to resiliently urge the diaphragm in one direction.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: September 13, 1983
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kenichi Motoki, Nobuyasu Ushiroyama
  • Patent number: 4379388
    Abstract: A system for generating electricity contained within an ocean raft. The raft has a series of raceways for heavy metal balls, and, as they roll back and forth, they engage levers which reciprocate back-to-back paired pistons in opposite directions. Each pressurizing movement of a piston discharges a jet of fluid to a common pressure tank from which the pressurized fluid drives a turbine.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: April 12, 1983
    Inventors: Byrl L. Williamson, Betty Williamson