61
Philip L Lundman: Hydraulic jack and pump usable therewith. Michael Best & Friedrich, April 13, 1993: US05201494 (23 worldwide citation)

A hydraulic jack includes a linkage movable from a first position to a second position for engaging and elevating a load, a hydraulic ram coupled to the linkage for moving the same toward its second position upon the application of fluid pressure, and a pump coupled to the hydraulic ram for applying ...


62
Casey N Work: Brush clearing apparatus for a bulldozer blade. Huebner & Worrel, February 8, 1983: US04372063 (23 worldwide citation)

A brush clearing apparatus for a bulldozer blade having a rake pivotally mounted on the blade for movement about an axis along the upper edge of the blade between an operational position in which the rake engages the bulldozing face of the blade and a retracted position above the blade, a clamp pivo ...


63
Peter Gardella, Kevin L Wood: Refuse compactor and transfer chamber. Norwood Enterprises, March 8, 1988: US04729304 (23 worldwide citation)

A stationary chamber is located below an apron on which garbage and other refuse is dumped from collection trucks. An opening in the apron is aligned with an opening in the top of the chamber. The discharge end of the chamber is closed by a gate which slants rearward at an angle of 15.degree. to the ...


64
Patel Kishor J: Electro-hydraulic proportional servo actuator. Applied Power, Nilles James E, April 8, 1975: US3875849 (23 worldwide citation)

Two electro-hydraulic proportional servo actuators are disclosed and each comprises an electro magnetic device such as torque motor or proportional solenoid energizable to operate a three-way hydraulic servo valve which, in turn, effects proportional amplified linear movement of a spring centered hy ...


65
Carlson Robert Philip, Oelschlaeger George Frederick: Safety lock for a linear fluid pressure actuator. Deere & Company, May 16, 1972: US3662653 (23 worldwide citation)

A rigid, elongated spacer of generally U-shaped cross-section adapted to fit over the extended piston rod of a hydraulic ram and having opposite ends engageable with the cylinder body and outer end of the rod, respectively, to prevent retraction of the latter. The spacer is pivotally mounted on the ...


66
Julius F John: Fixed limit lifting jack. Norco, December 26, 1978: US04131263 (23 worldwide citation)

A lifting jack with its elevating linkage has an elongated base supported on wheels and a hydraulic ram horizontally disposed in the base. A block which is a structural part of the base incorporates a hydraulic reservoir, a pump, valving, and a lift-lower control. A single handle serves both to actu ...


67
Bishop Jerald W: Hydraulic utility lift for trucks. June 6, 1972: US3667631 (23 worldwide citation)

A hydraulic utility lift for pick-up trucks and other vehicles consisting of a frame adapted to be mounted under the rear portion of the truck bed and carrying a lift arm operable to lift a load disposed rearwardly of said truck as said arm is pivoted from a downwardly and rearwardly inclined positi ...


68
Gary H Dietzen: Oil and gas well cuttings disposal system. Garvey Smith Nehrbass & Doody L L C, December 1, 1998: US05842529 (22 worldwide citation)

A method of removing drill cuttings from an oil and gas well drilling platform includes the steps of separating the drill cuttings from the well drilling fluid on the drilling platform so that the drilling fluids can be recycled into the well bore during drilling operations. The cuttings are transmi ...


69
Ronald L Hooper: Power vise. Richard C Litman, November 13, 2007: US07293765 (22 worldwide citation)

A power vise in which a supplementary power source is used to open and close the jaws. The power vise may be actuated by a remote control, so the operator may have both hands free to hold the workpiece as it is placed in or removed from the vise and may also include a mechanism for regulating the pr ...


70
H Tracy Hall: Guided high pressure presses. Workman Nydegger & Seeley, April 28, 1998: US05744170 (22 worldwide citation)

High pressure presses for making diamonds and other hard, crystalline materials. The high pressure presses may contain varying numbers of moveable press members: e.g., a tetrahedral press will have four press members while a cubic press will have six press members. The high pressure presses are equi ...