Overcenter door control device

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Checks and closers – Spring and lever

Patent

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Details

16 80, E05F 100

Patent

active

041411048

ABSTRACT:
An overcenter door control device is disclosed for resiliently holding a door in a predetermined open position after being moved past dead center in one direction, and resiliently holding the door closed after being moved past dead center in the opposite direction.

REFERENCES:
patent: 201500 (1878-03-01), Cobb
patent: 724152 (1903-03-01), Anderson
patent: 1057929 (1913-04-01), Burdett
patent: 2220766 (1940-11-01), Hubbs
patent: 2506284 (1950-05-01), Tharp
patent: 2569806 (1951-10-01), Dunlap

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