Full length interlocking hinge for a folding door

Details Full length interlocking hinge for a folding door Full length interlocking hinge for a folding door

1985-12-09

1987-07-14

Silverberg, Fred

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Including toothed gear

16382, E05D 700

Patent

active

046792775

ABSTRACT:
A hinge is disclosed for folding doors appropriate for use in lavatories on airplanes where the highest degree of airtightness is required. It consists of a basic frame hollow in shape, and a pair of moving frames. The moving frames have longitudinal flanges to support the door panel and connect with the opening slit of the basic frame by way of the supporting pieces. Longitudinal cogs are provided on the end of the supporting piece, such that they engage one another to rotate and enable smooth operation of the hinge. Each cog has a semicircular interior surface which cooperates with supporting shafts of the basic frame for rotation therearound.

REFERENCES:
patent: 2583350 (1952-01-01), Witzgall
patent: 2804229 (1957-08-01), Bergh et al.
patent: 3402422 (1968-09-01), Baer
Military Standard MS20001 (2 pages).
Weber Aircraft Illustrated Parts Catalogue (25-40-06), pp. 76-80.

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