Treadle Operated Patents (Class 417/903)
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Patent number: 8851860Abstract: The disclosed invention provides intelligent adaptive control for optimization of production output, energy efficiency and safety of a linear reciprocating long stroke hydraulic lift system, for use at the surface of oil and gas wells to extract fluids or gas after free flowing stopped due to natural decline of reservoir pressure. The hydraulic pump and its adaptive control system introduced in this invention are capable of optimizing its production capacity by varying multiple operating parameters, including its stroking length and speed characteristics continuously and instantaneously at any point. Merits and benefits of this invention include significant increase in production efficiency, improved durability and longevity of the pumping equipment, significant power consumption savings and an ability to adapt effectively to changing well conditions.Type: GrantFiled: March 12, 2010Date of Patent: October 7, 2014Assignee: Tundra Process Solutions Ltd.Inventor: Jacob Mail
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Patent number: 8770954Abstract: A human-powered pump assembly includes a frame and a treadle pivot attached to the frame, such that the treadle pivot defines a horizontal rotational axis. The pump assembly includes a pair of treadles coupled to the treadle pivot and a rocker pivot attached to the frame, such that the rocker pivot defines a separate horizontal rotational axis. The pump assembly includes a reciprocating rocker coupled to the rocker pivot and to the pair of treadles to constrain the motion thereof, such that the rocker pivot axis is located below the treadle pivot axis.Type: GrantFiled: February 10, 2011Date of Patent: July 8, 2014Assignee: KickSmart International, Inc.Inventors: Alan Spybey, Martin J. Fisher, Simon M. Mugo, Alex M. Mucheru, Frederick Obudho
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Patent number: 8496449Abstract: A rotary air motor driven hydraulic pump has separate pressure and return actuators and first and second stage eccentric driven pistons 180 degrees out of phase and driven by the motor through a gear reduction unit. The pressure and return actuators are on/off/proportional valves and the pump has two pressure relief valves with one adjustable from outside of the pump for a user to set a pressure limit of the pump. Above a certain output pressure limit, a bypass valve shunts flow in excess of that needed to precharge the second stage compression chamber from the first stage piston to an elastic reservoir from which the hydraulic fluid pumped by the pump is drawn. To make the pump stall at a certain output pressure, a pressure limiting valve can be used that cuts off the air supply to the pump at the desired output pressure.Type: GrantFiled: November 21, 2007Date of Patent: July 30, 2013Assignee: Actuant CorporationInventors: Bruce E. Knuth, Kay Lap Gilbert Chan, Theo H. H. Den Ridder, Frantz D. Stanford, Roger R. Pili
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Patent number: 7396218Abstract: An irrigation device (FIG. 1) for pumping fluids, particularly water, which can be constructed for a minimal cost and operated using only human power and having a simple and efficient mechanism making it suitable for use in undeveloped areas. The device includes a handle, contoured footpad, rocker, dual-action piston, outlet valve, and a surge chamber.Type: GrantFiled: May 31, 2002Date of Patent: July 8, 2008Assignee: Kickstart International, Inc.Inventors: Robert Brandon Hyde, Abdlikadir Mohammed Musa, Mark Francis Butcher, Martin Fisher
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Publication number: 20040166005Abstract: An irrigation device (FIG. 1) for pumping fluids, particularly water, which can be constructed for a minimal cost and operated using only human power and having a simple and efficient mechanism making it suitable for use in undeveloped areas. The device includes a handle, contoured footpad, rocker, dual-action piston, outlet valve, and a surge chamber.Type: ApplicationFiled: April 27, 2004Publication date: August 26, 2004Inventors: Robert Brandon Hyde, Abdlikadir Mohammed Musa, Mark Francis Butcher, Martin Fisher
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Patent number: 5934888Abstract: An aspirator pump, especially for medical purposes, has a receptacle with two chambers arranged alongside each other, which are connected with a suction tube, and on each of which an element is arranged which is movable approximately parallel to the other, each partially enclosing a hollow space for generating a vacuum. The two movable elements are connected to each other by means of a lever, whose two end parts are attached at the upper area of the respective movable elements, and whose middle part is movably attached in a bearing positioned between the chambers. In the upper area of each movable element a one way valve is installed which opens when the pressure in the hollow space is higher than the surrounding air pressure. An easy operation and cleaning, as well as a reliable aspiration is obtained with the aspirator pump, owing to the fact that at all times a chamber and a movable element enclose a common, variable hollow space, wherein the movable element bounds the upper area of the hollow space.Type: GrantFiled: April 18, 1997Date of Patent: August 10, 1999Assignee: Heraeus Med GmbHInventors: Rudolf Marka, Stefan Maier, Matthias Peuker, Hans-Joachim Kuhn, Walter Scheller
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Patent number: 5911284Abstract: A downhole motor operated by circulating mud fluid in the wellbore is revealed. The motor has nested rotors and is geared to a bit drive. The motor is a dual-rotor pump that is operated as a motor with mud flow through the rotor housing on end connections. The structures of the rotor housing and the rotors can be made of the same material. An angular offset can be incorporated between the centerline of the output of the motor and the bit drive. In the preferred embodiment, the motor output is through a gear located within a bigger gear connected to the bit so as to provide a speed reducer. The drive between the rotors and the bit can accommodate angular offsets of a predetermined amount for directional drilling. The design is compact and can be used to drill wellbores as small as about 21/2" in diameter, or even smaller.Type: GrantFiled: June 30, 1997Date of Patent: June 15, 1999Assignee: Pegasus Drilling Technologies L.L.C.Inventor: Gunther von Gynz-Rekowski
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Patent number: 5807077Abstract: A foot operated pump guard assembly for a portable pump includes a pair of upwardly extending support legs connected at their lower ends to a pump. A foot guard substantially surrounds an operator's foot and is pivotally connected to the upwardly extending support legs. Springs react against one another to cause the guard to self return upon removal of the operator's foot from the guard assembly. The guard has a built-in locking device and a carrying means to enhance in its transportability.Type: GrantFiled: December 5, 1996Date of Patent: September 15, 1998Inventor: Joe Lamanna
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Patent number: 5145338Abstract: A low pressure air pump includes an outer flexible envelope which encloses an articulate frame. When the envelope is manually compressed against a smooth surface, an intake aperture on the bottom side of the envelope is sealed and air is forced out of the pump. When pressure is released from the pump, the frame returns the envelope to its uncompressed state and, in so doing, opens the intake aperture to take in more air.Type: GrantFiled: December 12, 1990Date of Patent: September 8, 1992Inventor: Robert H. Murray
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Patent number: 4862533Abstract: An inflatable air mattress in combination with a sleeping bag. The air mattress is slidably disposed with in a zipper controlled pocket with the sleeping bag. The air mattress includes an electric pump, a bellows member or the like, which when energized or operated expands the inflatable air mattress within the sleeping bag in order to provide a cushioning effect for the user of the sleeping bag.Type: GrantFiled: September 18, 1987Date of Patent: September 5, 1989Inventor: Mark H. Adams, III
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Patent number: 4722263Abstract: A combination hydraulic pump and integral container apparatus comprising a container including generally symmetrical first and second members coupled to each other for relative pivotal movement between a closed position wherein the members define a generally enclosed cavity and an open position wherein the members are angularly spaced, a hydraulic fluid reservoir contained within the cavity, and a pump for pumping fluid from the reservoir in response to movement of the members between the open and closed positions.Type: GrantFiled: April 11, 1986Date of Patent: February 2, 1988Inventor: Ingo Valentin
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Patent number: 4289458Abstract: A foot pump comprises a base member and an operating member pivotally connected to the base member. A piston-and-cylinder assembly is connected between the members. In use the user depresses the operating member with his or her foot, thereby causing air to be compressed in and expelled from said assembly. A return spring returns the operating member to its raised position. The base and operating members have complementary pivot pin and hook means which are hooked together to form the pivotal connection between the members. The members are preferably made as unitary plastics mouldings, the pivot pin and hook means being resiliently clipped together.Type: GrantFiled: May 12, 1978Date of Patent: September 15, 1981Assignee: E. J. Price (Developments) LimitedInventor: Ernest J. Price
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Patent number: 4242060Abstract: A foot pump comprises a base member and an operating member pivotally connected to the base member. A piston-and-cylinder assembly is connected between the members. In use the user depresses the operating member with his or her foot, thereby causing air to be compressed in and expelled from said assembly. A return spring incorporated in said assembly returns the operating member to its raised position. The assembly can be disconnected from the base member and connected to the base member again, at will, and the whole is so arranged that when the assembly is disconnected from the base member the pump can assume a storage position in which the operating member is in a depressed position and the return spring is not loaded, or at least not significantly loaded.Type: GrantFiled: May 12, 1978Date of Patent: December 30, 1980Assignee: E. J. Price (Developments) LimitedInventor: Ernest J. Price
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Patent number: 4173431Abstract: A road vehicle-actuated air compressor and a system are disclosed for utilizing compressed air to operate an electrical generator to generate electricity. The road vehicle-actuated air compressor includes an actuator, a cylinder, and a piston in the cylinder reciprocatable in response to actuation of the actuator by a vehicle for compressing air in the cylinder. The cylinder is provided with a first vent means for introducing air into the cylinder behind the piston during a forward stroke of the piston, a valve-controlled second vent means for introducing air into the cylinder on the other side of the piston during the reverse stroke thereof, and outlet means for supplying air compressed by the piston during the forward stroke thereof to a utilization device.Type: GrantFiled: January 16, 1978Date of Patent: November 6, 1979Assignee: Nu-Watt, Inc.Inventor: Roland L. Smith
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Patent number: 4115034Abstract: A vehicle-actuated air compressor and a system are disclosed for utilizing compressed air to operate an electrical generator to generate electricity. The vehicle-actuated air compressor includes an actuator, a cylinder, and a piston in the cylinder reciprocatable in response to actuation of the actuator by a vehicle for compressing air in the cylinder. The cylinder is provided with a first vent means for introducing air into the cylinder behind the piston during a forward stroke of the piston, a valve-controlled second vent means for introducing air into the cylinder on the other side of the piston during the reverse stroke thereof, and outlet means for supplying air compressed by the piston during the forward stroke thereof to a utilization device.Type: GrantFiled: July 11, 1977Date of Patent: September 19, 1978Inventor: Roland L. Smith
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Patent number: 4048800Abstract: Presented is a hydraulic jack structure having a pump assembly in connection with which is rotatably mounted a pump handle assembly which may be rotated in a horizontal plane through about 320.degree. to permit selective positioning of the handle during a pumping operation.Type: GrantFiled: July 14, 1975Date of Patent: September 20, 1977Inventor: Philip S. Cancilla