Flexible or portable closure – partition – or panel – With nonrigid frame or border elements
Patent
1975-12-24
1977-12-27
Kannan, Philip C.
Flexible or portable closure, partition, or panel
With nonrigid frame or border elements
49 9, 49482, 49488, 49368, 52499, A47H 2300
Patent
active
040649245
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 traffic 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. Both the vertical and horizontal frame sections include a hollow rail having longitudinal recesses in opposite edges. The door panels are secured within the inner recesses of the rails by wedge-shaped strips, while channel members are secured in the outer recesses and carry a pair of weather strips which engage the jamb and header of the doorway. The outer vertical edge of each door panel is clamped within an edge seal strip which includes an outer flexible hinge section and a pair of arms having teeth or serrations which are clamped to opposite faces of the respective panel. Each edge seal strip has cooperating male and female locking elements with ratchet type teeth which maintain the arms of the strip in locking engagement with the panel.
REFERENCES:
patent: 2642164 (1953-06-01), McLean
patent: 2688164 (1954-09-01), Nelson
patent: 3038217 (1962-06-01), Harris
patent: 3112817 (1963-12-01), Critchfield
patent: 3295589 (1967-01-01), Pfleger et al.
patent: 3391723 (1968-07-01), Kirby
patent: 3455080 (1969-07-01), Meadows
patent: 3468064 (1969-09-01), Fraleigh et al.
patent: 3652380 (1972-03-01), Strack
patent: 3662493 (1972-05-01), Foltz
patent: 3854246 (1974-12-01), McAllister
patent: 3858357 (1975-01-01), McGuire
Kannan Philip C.
Kelley Company Inc.
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