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
2011-01-25
2011-01-25
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
C254S279000, C254S281000, C254S286000, C254S324000, C254S326000
Reexamination Certificate
active
07874544
ABSTRACT:
A lifting device comprises at least two multi-stage masts and a cable mechanism. Each multi-stage mast comprises a first length and a second length that is longer than the first length. Each multi-stage mast further comprises a plurality of stages, such that at least one stage of a mast is vertically movable with respect to at least one other stage. The cable mechanism comprises a spool and at least one cable that is coupled to the spool and arranged with respect to the multi-stage masts so that when each cable is wound onto the spool, each mast simultaneously and in unison changes length in a direction from the first length to the second length, and when each cable is unwound off the spool, each mast changes length simultaneously and in unison in a direction from the second length to the first length.
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Genie Parts List, DPL Super Series, Part No. 40461, Rev C4, Nov. 2007, pp. 1-95.
Genie Aerial Work Platforms, 2007, pp. 1-20.
Curtin, L.L.C. Joseph P.
Marcelo Emmanuel M
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