Roll stop for a lift

Details Roll stop for a lift Roll stop for a lift

2008-04-11

2011-10-25

Mansen, Michael (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Stairway assist for individual or minor barrier lift for...

C187S240000, C414S546000, C414S921000

Reexamination Certificate

active

08042655

ABSTRACT:
A roll stop system for a lift includes a roll stop member that is movable between a raised position and a lowered position, a driving mechanism for moving the roll stop member between the raised position and the lowered position, and a spring member acting as a buffer between the driving mechanism and the roll stop member, and preferably the spring member protects the driving mechanism from damage due to abnormal operations of the roll stop member.

REFERENCES:
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patent: 5975830 (1999-11-01), Goodrich et al.
patent: 6305897 (2001-10-01), Budd et al.
patent: 6398479 (2002-06-01), Dupuy et al.
patent: 6692217 (2004-02-01), Pierrou
patent: 6705824 (2004-03-01), Ablabutyan et al.
patent: 2003/0091418 (2003-05-01), Ranken et al.
patent: 2005/0238471 (2005-10-01), Ablabutyan et al.
patent: 2005/0238472 (2005-10-01), Sobota et al.
patent: 2006/0263183 (2006-11-01), Goodrich
patent: 2007/0071569 (2007-03-01), Sobota et al.

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