61
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 ...


62
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 ...


63
Michael D Stepp: Sheet-metal insulated register box with adjustable elbow fitting. M & M Manufacturing Co, Dennis T Griggs, September 28, 1999: US05957506 (22 worldwide citation)

A sheet-metal elbow is coupled by direct attachment to a flat sheet-metal air inlet panel of an air distribution boot or register box by roll-formed flange portions that are mated in interlocking, overlapping engagement with each other. The air inlet panel includes an outwardly flared coupling flang ...


64
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 ...


65
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 ...


66
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 ...


67
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 ...


68
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 ...


69
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 ...


70
Tommy M Warren, Warren J Winters, J Ford Brett: Method and apparatus for controlling the rotational torque of a drill bit. Amoco Corporation, Scott H Brown, Fred E Hook, April 28, 1987: US04660656 (22 worldwide citation)

A method and apparatus for controlling the rotational torque of a drill bit powered by a downhole motor. The downhole motor is suspended from a hydraulic ram at the lower end of a string of drill pipe. A torque sensor detects the reactive torque in the downhole motor during drilling. In response to ...



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