Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Including barrier mounted at landing
Reexamination Certificate
2005-12-07
2008-09-16
Cuomo, Peter M. (Department: 3654)
Elevator, industrial lift truck, or stationary lift for vehicle
With barrier for regulating access to load support
Including barrier mounted at landing
C187S334000, C049S125000, C049S409000, C049S425000
Reexamination Certificate
active
07424935
ABSTRACT:
A door assembly for an elevator having a cab having a cab entry, the elevator having an elevator shaft having upper and lower shaft entries, the assembly incorporating first, second, and third ladder frames having a plurality of roller carrying rungs and bolt and spacer sleeves spanning between the ladder frames' rungs, each ladder frame having proximal and distal ends, the first ladder frame overlying and extending outwardly from the elevator's cab entry, the second ladder frame overlying and extending inwardly from the elevator's upper entry, and the third ladder frame overlying and extending inwardly from the elevator's lower entry; the door assembly incorporating first, second, and third pluralities of rollable trolleys mounted upon the first, second, and third ladder frames' pluralities of roller carrying rungs; and the door assembly incorporating first, second, and third pluralities of door panels, suspending from the first, second, and third pluralities of rollable trolleys.
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Columbia Elevator Solutions, Inc.
Cuomo Peter M.
Davis & Jack, L.L.C.
Jack Kenneth H.
Kruer Stefan
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