Closure fasteners – Rings
Patent
1980-07-24
1981-09-29
Moore, Richard E.
Closure fasteners
Rings
E05C 1904
Patent
active
042919088
ABSTRACT:
A safety gate latch system having a gate tongue, first and second rings on opposite sides of the gate tongue and held in a frame in a manner such that when the rings are down, the gate tongue cannot move past either ring, a post-tongue, a second ring frame attached to the gate tongue and supporting primary and secondary safety rings disposed on opposite sides of the post-tongue whereby a gate using said system cannot be opened in a direction without the lifting of one of the first and second rings and also one of the safety rings.
REFERENCES:
patent: 2155808 (1939-04-01), Swetman
patent: 2609223 (1952-09-01), Adams
patent: 3523705 (1970-08-01), Gittins et al.
Moore Richard E.
Sturges Hiram A.
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