Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1991-09-23
1993-03-23
Olszewski, Robert P.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187 68, B66B 1104
Patent
active
051956144
ABSTRACT:
A mechanism is placed between a plunger and an elevator car to damp the effects of stick-slip encountered during elevator start-up and to minimize the probability of damage to a plunger/cylinder assembly if the elevator car is stopped in an emergency. The mechanism comprises a self-leveling hydraulic shock absorber that operates independently of any stick-slip between the plunger and cylinder.
REFERENCES:
patent: 5556 (1873-08-01), Hope
patent: 952097 (1910-03-01), Brown
patent: 3043401 (1962-07-01), Hallene et al.
Bialy Louis
Hornyack John
Mistry Rajendra V.
Doigan Lloyd D.
Noland Kenneth
Olszewski Robert P.
Otis Elevator Company
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