Closure fasteners – Bolts – Double acting
Patent
1978-02-21
1979-01-16
Schroeder, Werner H.
Closure fasteners
Bolts
Double acting
16 82, 292DIG19, 16DIG17, E05C 1906
Patent
active
041346084
ABSTRACT:
The invention relates to a combination door stop and catch in the form of a molded unit adapted for mounting to the wall surface behind a door in its open position, and adapted, not only to function as a stop for the door before the knob of the door can engage such wall, but to perform the additional function of a catch, to preclude self closing of the door. The catch offers limited though essential restraint for this purpose, but enables automatic release of the door in response to application of force to the door in the direction of closing.
REFERENCES:
patent: 355852 (1887-01-01), Armstrong
patent: 813343 (1906-02-01), Bartlett
patent: 1688221 (1928-10-01), Abbey
patent: 2541890 (1951-02-01), Schaperkotter et al.
patent: 2784443 (1957-03-01), Von Berg
Cohen Moshe I.
Schroeder Werner H.
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