Chain lock for sliding door

Details Chain lock for sliding door Chain lock for sliding door

1989-04-28

1991-05-14

Moore, Richard E.

Closure fasteners

Extension link

Swinging catch

49325, 49264, 292DIG46, E05C 1704

Patent

active

050150227

ABSTRACT:
A lock for a sliding panel such as a sliding glass door includes a chain which bends in only one direction. The chain, when latched, forms an incompressible column between the openward edge of the panel and the door frame. Unlatching allows the chain to bend in its allowed direction and fall vertically along side the door frame, thus allowing the panel to open.

REFERENCES:
patent: Re27161 (1971-08-01), Raymon
patent: 1572635 (1926-02-01), Bostwick
patent: 2620214 (1952-12-01), Caccetti
patent: 2832590 (1958-04-01), Youngberg
patent: 3352586 (1967-11-01), Hakanson
patent: 4014136 (1977-03-01), Hemens et al.
patent: 4429912 (1984-02-01), Smith, Jr.
patent: 4580820 (1986-04-01), Bober

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