51
Michael D Stepp: Sheet-metal insulated register box with adjustable elbow fitting. M & M Manufacturing Co, Dennis T Griggs, September 28, 1999: US05957506 (24 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 ...


52
Patrick J Crawford: Mobile device for handling material. Wicks & Nemer, April 27, 1982: US04326571 (24 worldwide citation)

A mobile device for handling material of various types including a frame having an endless track mounted on each side thereof for providing mobility to the frame. A source of power in the form of an internal combustion engine is mounted directly on the frame. A turntable is rotatably mounted on the ...


53
James C Seal: Spreader/grader. Harvey B Jacobson, March 23, 1982: US04320988 (24 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 ...


54
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 ...


55
Sannipoli Alfred L: Tank fabrication system. Lyco Manufacturing, May 22, 1973: US3734387 (24 worldwide citation)

A system and method of fabricating tanks comprising a plurality of carriages mounted on tracks and supporting tank sections and a chain drive mechanism for forcing the tanks into contacting relationship. Also included is a hydraulic ram for applying further contacting pressure so that intimate conta ...


56
Donald R May: Apparatus for lifting structures. Sandra L May, Hovey Williams Timmons & Collins, August 8, 1989: US04854782 (24 worldwide citation)

An apparatus for lifting structure is provided which includes a pier and a shoe attached to the base of a structure. A sleeve, which acts as a means to guide the shoe and support the shoe on the pier, is placed on the pier and is adapted to mate with the shoe. In order to lift the structure, a lift ...


57
Clark Julius: Apparatus for aligning pipe ends. Young & Thompson, November 18, 1975: US3920232 (24 worldwide citation)

A pipe end line-up clamp encircles adjacent pipe ends and presses on them at selected points to bring them into alignment so they can be welded together. A frame can be positioned at any selected location about the clamp and pivotally supports the outer end of a hydraulic ram whose inner end carries ...


58
Mark Hutchins: Lifting apparatus. Gray Cary Ware & Freidenrich, August 20, 2002: US06435804 (24 worldwide citation)

The disabled person lifting apparatus permits an object, such as a wheelchair user, to be moved between a first position and a second position in which the first and second positions are at different vertical distances. For a vehicle wheelchair lifting apparatus, the first position may a ground leve ...


59
Henning Baatz, Dieter Rittscher, Hans Joachim Lur: Method and apparatus for the packaging of radioactive wastes. GNS Gesellschaft fur Nuklear Service mbH, Karl F Ross, Herbert Dubno, May 20, 1986: US04590000 (23 worldwide citation)

A method of and an apparatus for the packaging of radioactive waste wherein a steel container is placed in a horizontal hydraulic press chamber with the open end of the container turned toward a hydraulic ram, radioactive waste is accumulated ahead of the open end of this container, the ram is advan ...


60
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 ...



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