31
Arlen J Ostreng: Aluminum/steel can separator and baler. Williamson Bains Moore & Hansen, November 20, 1984: US04483248 (32 worldwide citation)

The recycling machine is provided with a baling chamber having a cyclable hydraulic ram. The ram cycles continuously, and each time it retracts, no more than a predetermined number of cans are admitted to the baling chamber for crushing and adding to the bale therein. A counting mechanism is provide ...


32
Mathew J Pacek, Thomas E Pomerville: Selectively-retractable elevated walkway extension. Magnum Construction Company, Barnes Kisselle Raisch Choate Whittemore & Hulbert, November 29, 1988: US04787111 (32 worldwide citation)

A selectively positionable extension for an elevated walkway includes a planar ramp mounted by rollers to a frame and coupled to the frame by a selectively extensible hydraulic ram. The frame itself is supported by a second ramp for controlled vertical positioning. A pair of handrail gates are pivot ...


33
Jeffrey T Bayorgeon, Dirk J Vandalen, Pierre N Legrand: Apparatus for reforming and straightening vehicles. Applied Power, Robert L Lindgren, Edward D Gilhooly, Davis Chin, October 25, 1977: US04055061 (32 worldwide citation)

An apparatus for reforming and straightening damaged bodies and frames of vehicles whereby corrective forces are applied to the vehicle through one or more elongated force transmission elements. A force is imposed on the elongated elements respectively by means of a uniquely mounted hydraulic ram wh ...


34
Michael D Stepp: Sheet-metal insulated register box with adjustable elbow fitting. M & M Manufacturing Co, Dennis T Griggs, September 28, 1999: US05957506 (31 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 ...


35
Daniel E Williams, Mark D Morris: Semi-active suspension system with energy saving. TRW, Tarolli Sundheim & Covell, March 24, 1992: US05098119 (31 worldwide citation)

A semi-active suspension system having a linear actuator operatively connected between a sprung mass and an unsprung mass of the vehicle for each corner of the vehicle. An accumulator connected to the actuator through an electrically controlled valve. An actuatable fluid RAM is in fluid communicatio ...


36
Mason Samuel Trevor: Quick-change fitting for load shifting implement. Mason Samuel Trevor, July 16, 1986: GB2169582-A (31 worldwide citation)

A quick-change fitting for attaching a load shifting implement, for example a bucket or fork-lift forks, to a vehicle, for example an earth-moving vehicle or a tractor, comprises two pins (16,25) which engage hooks (20,21) on the implement, one pin (25) being slidable in slots (26) by a hydraulic ra ...


37
Erven Tallman: Portable lifting jack. April 19, 1977: US04018421 (30 worldwide citation)

A hydraulic lifting jack has a base supported on wheels, an elevating linkage, a hydraulic ram operating with the linkage and a handle for pressurizing and releasing the hydraulic ram. An integral block of rugged rectangular configuration serves a multiple purpose of providing a reservoir for hydrau ...


38
Inflatable support appliance. Scales J T, December 19, 1973: GB1341325-A (30 worldwide citation)

1341325 Mattresses; adjustable beds J T SCALES 5 July 1972 [9 July 1971] 32461/71 Headings A4M, A4J A mattress, cushion or like support has an inlet for connection to a source of gas under pressure and has at least that part of its surface which is intended to make contact with the user formed from ...


39
Nestor Ruben Torres: Fluid flow regulating valve. Keck Mahin & Cate, May 3, 1994: US05308040 (28 worldwide citation)

A fluid flow regulating valve adapted to prevent the operation of the valve from violent pressure change, namely the hydraulic ram effect, in the fluid, particularly during closing and opening of the valve, the valve comprising a casing that houses a regulating plate slidably mounted within the casi ...


40
Nicholls Lawrence George: Motor-cycle suspensions. Girling, Scrivener Parker Scrivener and Clarke, December 17, 1974: US3854710 (28 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 ...