Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Reexamination Certificate
2008-11-21
2010-12-28
Marcelo, Emmanuel M (Department: 3654)
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
C254S332000, C254S325000
Reexamination Certificate
active
07857288
ABSTRACT:
The air conditioner compressor removal and installation apparatus includes an upper plate having multiple sets of leg sockets depending therefrom. The distal ends of legs installed within any given set of sockets subtend a circle corresponding to the diameter of the inner rim of an air conditioner, heat pump, or HVAC coil housing. The distal end of each leg includes an inverted, L-shaped shoe that rests upon the inner rim of the coil housing when the apparatus is placed thereon. The upper plate includes a winch having a winch cable extending through a hole in the plate. The compressor within the coil housing is disconnected from its attachment and electrical and refrigerant lines. The apparatus is placed atop the coil housing. The winch cable is connected to the compressor, and the winch is operated to lift the compressor from within the coil housing. The process is reversed for reinstallation.
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Website, http://www.beacontechnology.com/gantrycranes/tripodhoiststand/, tripod hoist with adjustable height legs, one sheet printed from the internet on May 6, 2008.
Website, http://www.hoistsdirect.com/wallace—tripod—crane.htm, tripod crane, two sheets printed from the internet on May 6, 2008.
Litman Richard C.
Marcelo Emmanuel M
LandOfFree
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