Device for the installation and retention of a shutter plate for

Details Device for the installation and retention of a shutter plate for Device for the installation and retention of a shutter plate for

1986-08-11

1988-05-10

Moore, Richard E.

Closure fasteners

Clamps

Ring

E05C 2100

Patent

active

047430540

ABSTRACT:
This device for the installation and retention of a shutter plate (11) for an opening (7) comprises a carrier ring (21) provided with an inner channel (22) with an inclined face (23), positioned within which are clamping wedges (25) which bear upon the periphery of the shutter plate (11) and which, under the action of locking screws (27) which interact with the carrier ring (21) move individually within the said channel in a downward radial direction so as to exert a compressive force on the said shutter plate.

REFERENCES:
patent: 2837383 (1958-06-01), Skelly
patent: 2937782 (1960-05-01), Heimberger et al.
patent: 3429476 (1969-02-01), Hunter
patent: 4524729 (1985-06-01), Hill, Jr. et al.

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