Movable or removable closures – Impact absorbing flexible barricade
Patent
1981-02-25
1983-09-06
Downey, Kenneth
Movable or removable closures
Impact absorbing flexible barricade
49 34, 160327, E01F 1300
Patent
active
044021593
ABSTRACT:
A traffic door biased to the closed position and adapted to be swung to the open position when pushed manually or engaged by material handling equipment. The door includes an inverted L-shaped frame and a spring loaded cam mechanism is associated with the upper horizontal frame section of the frame and acts to bias the door to the closed position. The door is pre-hung on a vertical rail which is offset from the plane of the door. At the time of installation, the rail is plumbed and secured to the doorway jamb. The pre-assembled unit facilitates proper installation of the door, and the offset rail eliminates the need for rubber flaps to seal the gap between the door and the jamb. The traffic door assembly also includes an upper trim panel attached to the horizontal frame section which can be trimmed to size to fit the doorway.
REFERENCES:
patent: 2642164 (1953-06-01), McLean
patent: 3295589 (1967-01-01), Pfleger et al.
patent: 4064924 (1977-12-01), Catlett
Downey Kenneth
Kelley Company Inc.
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