Elevator – industrial lift truck – or stationary lift for vehicle – Having specific force transmitting connection for... – Equalizes tension in – or length of – plural linking cables
Reexamination Certificate
2003-08-06
2011-11-01
Mansen, Michael (Department: 3654)
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific force transmitting connection for...
Equalizes tension in, or length of, plural linking cables
C187S411000
Reexamination Certificate
active
08047335
ABSTRACT:
A shock-absorbing hitch termination (40) includes a terminating member (52) that moves against a first bias (62) responsive to a first level of tension on a load bearing member (26) associated with a car (22) and counterweight (24) in an elevator system (20). A support member (60) moves with the terminating members (52) against a second, passive bias (70) responsive to increased tension on the load bearing member (26). In one example, the second bias is provided by mechanical springs (70). In another example the second bias is provided by air springs. In still another example the second bias is provided by pressurized actuators (82). The shock-absorbing hitch termination may be supported for movement with the car, counterweight or both. In another example, the shock-absorbing hitch termination is provided in a stationary structure (90) within the elevator system.
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Fargo Richard
Hollowell Richard L.
Carlson & Gaskey & Olds PC
Kruer Stefan
Mansen Michael
Otis Elevator Company
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