Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Including barrier mounted at landing
Reexamination Certificate
2007-12-18
2007-12-18
Mackey, Patrick (Department: 3653)
Elevator, industrial lift truck, or stationary lift for vehicle
With barrier for regulating access to load support
Including barrier mounted at landing
C187S324000, C187S333000, C187S334000, C049S351000, C160S084090
Reexamination Certificate
active
11033091
ABSTRACT:
A door panel position control mechanism for a multiple panel horizontal sliding door assembly of a freight elevator landing. The mechanism comprises a multiple node scissors linkage that is configured to be easily installed and initially adjusted and which has its parts symmetrically balanced about a vertical plane such that excessive eccentric loading on the components is reduced and a long service life is obtained with reduced wear and a reduced need for periodic adjustment.
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Patent Abstract of Japan, vol. 016, No. 464 (M-1316), Sep. 28, 1992 & JP 04 164797 A (Toshiba Corp.) Jun. 10, 1992.
Mackey Patrick
Matthews Terrell
Pearne & Gordon LLP
The Peelle Company Ltd.
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