Device for retaining a door in open position

Details Device for retaining a door in open position Device for retaining a door in open position

1985-12-09

1987-08-04

Wolfe, Robert L.

Closure fasteners

Bolts

Double acting

16354, 49383, 49394, 292341, 292DIG16, 292DIG38, E05C 1902

Patent

active

046841580

ABSTRACT:
This invention relates to a device for retaining a door in open position, comprising two toothed elements of resilient material, positively connected to the door post and the door leaf, respectively, and adapted to mesh with one another during the opening of the door leaf so as to retain the same in open position at a desired opening angle.

REFERENCES:
patent: 143585 (1873-10-01), Morris
patent: 328192 (1885-10-01), Coultaus
patent: 498564 (1893-05-01), Morris
patent: 575683 (1897-01-01), Ansell
patent: 1698136 (1929-01-01), Lawrence
patent: 2201594 (1940-05-01), Sitts
patent: 2446141 (1948-07-01), Parsons
patent: 2743127 (1956-04-01), Amy
patent: 2979355 (1961-04-01), Brown
patent: 2996325 (1961-08-01), Chenel
patent: 4064652 (1977-12-01), Johnston

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