61
Ruffing Charles: Lift device for small equipment. February 4, 1975: US3863890 (23 worldwide citation)

A compact, inexpensive lift device, capable of elevating small equipment (such as a snowmobile) to a convenient working height for servicing or repair, includes a mobile base frame, a lift frame carrying an equipment support platform, a linkage arrangement pivotally connecting the lift frame to the ...


62
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 ...


63
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 ...


64
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 ...


65
Peter Gardella, Kevin L Wood: Refuse compactor and transfer chamber. Norwood Enterprises, March 8, 1988: US04729304 (22 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 ...


66
Christian H Thoma, George D M Arnold: Rotary hydrostatic machines or transmissions. Young & Thompson, July 4, 1989: US04843818 (22 worldwide citation)

A hydrostatic machine including a casing 1 containing a rotary member 12 having radial cylinders 20 each with a piston 21 engaging a track ring 23. Both input 6 and output shafts 7 are connected either hydraulically through the transmission rotary members 12 or mechanically through a bypass shaft 10 ...


67
James C Seal: Spreader/grader. Harvey B Jacobson, March 23, 1982: US04320988 (22 worldwide citation)

A spreader/grader is attachable to a three-point hitch associated with a tractor and includes a pair of curved cutting blades which are adjustable so as to control cutting depth. The cutting blades are mounted between a pair of side runners and include curved cutting edges to facilitate spreading or ...


68
Krause Herbert K: Self-unloading vehicle. August 8, 1972: US3682333 (22 worldwide citation)

An unloading apparatus for a spreader or the like includes a caliper arm mechanism one end of which is secured to the box and the other end of which is secured to a slidable bulkboard. A hydraulic ram spreads the arms of the caliper mechanism to slide the bulkboard rearwardly. A tailgate is mounted ...


69
Christopher A Hart, David N Cannan: Power tongs. Felsman Bradley Vaden Gunter & Dillon L, October 31, 2000: US06138776 (22 worldwide citation)

A pipe handling system comprises a rig floor supported frame adapted to be positioned above the rotary table and in alignment with the hole in the rotary table. It incorporates a centrally located bowl lined with the frame to enable a string of pipe to extend through the rotary table. Appropriate re ...


70
Oswalt Jr Harry L: Metal working machine. February 18, 1975: US3866522 (22 worldwide citation)

A machine for fabricating workpieces, provided with shears, punches, press brakes, a notcher or coper, and other accessories, such as forming, shaping, bending and cut-off tooling, has a power beam swingable vertically on a horizontal bed that is interposed between the beam and a hydraulic ram, as w ...



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