Elevator – industrial lift truck – or stationary lift for vehicle – Transportable elevator
Reexamination Certificate
2003-08-29
2008-08-05
Mackey, Patrick (Department: 3653)
Elevator, industrial lift truck, or stationary lift for vehicle
Transportable elevator
C187S241000, C187S242000, C248S327000, C212S179000
Reexamination Certificate
active
07407039
ABSTRACT:
A portable hoist lifting frame kit has a cross beam12that can support an electrically, mechanically, hydraulically or pneumatically operated hoist. The cross beam is secured to or supported by cantilever arms9which in turn locate into extension arms4. The cross beam can move laterally along the length of the cantilever arms. The extension arms locate into protrusion blocks which in turn locate into a wall mounted bracket support system designed to support the load to be raised. The bracket support system is of the mild steel channel type with return lip such as “unistrut”. The portable hoist lifting frame kit can be assembled in various configurations i.e. it can be used with or without the protrusion blocks and extension arms.
REFERENCES:
patent: 4706939 (1987-11-01), Gagne
patent: 4795136 (1989-01-01), Haefner
patent: 5310066 (1994-05-01), Konstant
patent: 5310152 (1994-05-01), O'Neill
patent: 6135300 (2000-10-01), Fox
patent: 6920963 (2005-07-01), Faller
patent: 2273090 (1994-06-01), None
patent: 2340102 (2000-02-01), None
patent: 8303820 (1996-11-01), None
patent: 200034837 (2000-02-01), None
Bailey Michael
Mackey Patrick
Matthews Terrell
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