41
Normand Savard: Retractable side wing assembly. July 2, 2002: US06412200 (26 worldwide citation)

A retractable side wing assembly, adapted to be mounted on a side of a road vehicle for clearing snow off the same, includes a scraper having a frontward end pivotally secured to the side of the vehicle and a rearwardly and outwardly extending free end, a retracting member having a first end rotatab ...


42
Powell Jonathan S: Means for securing couplings to pipe. May 25, 1971: US3579794 (25 worldwide citation)

A means and method of constricting a coupling having internal teeth onto a pair of abutting pipe sections; the means comprising an assembly of split rings which may be secured around a pair of abutting pipe sections and a coupling having internal teeth initially slidable on the pipe sections, at lea ...


43
Steven D Gregory, Darin Willis: Apparatus and method for raising and supporting a building. Steven D Gregory, Warren B Kice, March 27, 1990: US04911580 (25 worldwide citation)

An apparatus and method for raising and supporting the foundation or slab of a building, in which a lifting arm assembly engages the lower surface of the foundation or slab and is secured thereto. A piling assembly is disposed in a support sleeve adjacent the lifting assembly and is engaged by a cla ...


44
Prahst Eugene D: Self-unloading vehicle. The Heil Co, Morsell Jr Arthur L, June 10, 1975: US3888366 (25 worldwide citation)

A flexible unloading belt normally covers the floor of a vehicle body such as a trailer body and extends back under a transverse roller at the rear of the trailer body. The rear end of the belt is deadended below the floor of the trailer. A drive roller set which is operated by an hydraulic ram is e ...


45
Robert M Carpenter: Hydraulic wheelchair lift. Target, Chapin Neal & Dempsey, October 24, 1978: US04121695 (25 worldwide citation)

Wheelchair lift for a van-type vehicle having a pivotable frame which may be swung from within to without the vehicle, a slide frame telescopically movable relative to the swing frame and a wheelchair supporting platform carried at the lower end of the slide frame. The platform is pivotable to and f ...


46
Thomas J Dosch, Rawley McCoy, Theodore W Steele: Mobile radar tower. Sierra Research Corporation, Dowell & Dowell, January 22, 1980: US04185288 (25 worldwide citation)

A mobile tower supporting a radar antenna system including a drive system and position resolvers, the antenna system being mounted at the top of a cylindrical telescopable mast which is hinge mounted on a tripod base and is erected to a vertical operative position by an hydraulic ram which also retr ...


47
Nicholls Lawrence George: Motor-cycle suspensions. Girling, Scrivener Parker Scrivener and Clarke, December 17, 1974: US3854710 (25 worldwide citation)

A suspension system for motorcycles including an air pressure operated hydraulic ram connected between the wheels and body of the motorcycle. Instead of applying air pressure from a separate source to counteract heavy loads on the motorcycle and then releasing this pressure to atmosphere after remov ...


48
Martin Walch, Joel Wilhelm, Bernard Wattron, Rino Ermacora, Alain Guesdon: Automatic adjusting for lightening a machine working unit: method, device and machine. Kuhn, Oblon Spivak McClelland Maier & Neustadt P C, July 11, 2000: US06085501 (24 worldwide citation)

A method and device for automatically adjusting the lightening of a working unit (U) of a machine by use of a hydraulic ram (57) associated with a hydropneumatic accumulator (67). Use is made of a second hydraulic ram (58) of which the piston (53), which can move as far as a predetermined position ( ...


49
James A Thorup: Dual-action pneumo-hydraulic crimping apparatus. Coherent, R Russel Austin, January 17, 1995: US05381686 (24 worldwide citation)

An apparatus for crimping a terminal onto a wire includes a hydraulic cylinder including a hydraulic ram, two normally open crimper jaws closeable by the hydraulic ram, and a hydraulic pressure supply for delivering hydraulic pressure to the hydraulic cylinder to operate the hydraulic ram and close ...


50
Charles S Smith: Three-point hitch attachment with hay mover. Jacobson Price Holman & Stern, January 12, 1993: US05178505 (24 worldwide citation)

An attachment for the three-point hitch of a farm tractor including a generally vertically disposed, inverted U-shaped frame having outwardly extending lower ends connected to a pair of lower lift arms forming part of the three-point hitch of the tractor. The top portion of the frame is pivotally an ...



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