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
2005-12-19
2008-01-15
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
Reexamination Certificate
active
07318579
ABSTRACT:
A hoist assembly for use with an elevating device, such as a ladder, comprises a base structured for mounting the hoist assembly to the ladder or other elevating device. The hoist assembly includes a spool which is disposed in a normally secured orientation relative to the base, and includes an elongated member, such as a rope, wire, line, etc. attached thereto and movable therewith. A release mechanism is provided to permit the spool to be at least temporarily released from its normally secured orientation, thereby allowing the spool and the elongated member affixed thereto to move relative to the base, for example, in a rotating manner. The release mechanism includes a cogwheel having one or more cogs structured to engage a release plate structured to retain the spool in its normally secured orientation relative to the base.
REFERENCES:
patent: 731708 (1903-06-01), Quinn
patent: 2405505 (1946-08-01), Kleidon
patent: 2459621 (1949-01-01), Cobb
patent: 3266746 (1966-08-01), Brown et al.
patent: 3910184 (1975-10-01), Springer
patent: 3977652 (1976-08-01), Mauch
patent: D260754 (1981-09-01), Gunnels
patent: 4390161 (1983-06-01), Nelson
patent: 4598795 (1986-07-01), Larson
patent: 4771988 (1988-09-01), Scroggins, Sr.
patent: 5310152 (1994-05-01), O'Neill
patent: 6098748 (2000-08-01), Harper et al.
patent: 6244381 (2001-06-01), Ruble
patent: 6494437 (2002-12-01), Boyer
patent: 6520723 (2003-02-01), Christensen
patent: 6607053 (2003-08-01), Warren
patent: 6652205 (2003-11-01), Christensen
patent: 1946797 (1970-04-01), None
Malloy & Malloy P.A.
Marcelo Emmanuel M
LandOfFree
Ladder hoist assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ladder hoist assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ladder hoist assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3963652