Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1991-03-21
1992-07-21
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
49416, B66B 1300
Patent
active
051315041
ABSTRACT:
A car door seal, comprising a brush, is utilized to seal the openings between a closed car door and an elevator car and to minimize backlash between the car doors and the car. By utilizing a brush, such uneven openings are effectively sealed because the brushes bend for narrower openings between the car door and the car. The brush also provides an effective damping and spring force between the door and the car. As a result, door rattle, caused by backlash and aerodynamically induced vibration loads during car travel, is minimized thereby minimizing vibration and noise within the interior of the car.
REFERENCES:
patent: 2218068 (1940-10-01), Klein
patent: 2668317 (1954-02-01), Le Bon, III
patent: 3420002 (1969-01-01), Kondolf
patent: 5083639 (1992-01-01), Kappeler
Salmon John K.
Worsley Keith
Yoo Young S.
Doigan Lloyd D.
Noland Kenneth
Olszewski Robert P.
Otis Elevator Company
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