Door closer
United States Patent 3078499
US Patent References:
/1115305.html
- - 1115305

Automatic door closer
- - 1455691

Doorcheck
- - 1738123

Door operating mechanism
- - 1849417

Doorcheck
- - 1965805


Inventors:
Gray, Raymond K.
Wolniak, Stanley C.
Publication Date:
02/26/1963
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Assignee:
ILLINOIS LOCK CO
Primary Class:
16/52
Other Classes:
251/54, 188/289, 137/516.130
International Classes:
E05F3/10; E05F3/00
US Patent References:
1966445Elevator door control mechanism
2053053Aircraft landing gear
2416316Door check bracket
2441037Bathroom scale support
2681468Door check
2735132
2812533Door check
2866223Doorcloser and doorcheck
2942291Door closing and checking device
2949625Door closer
Foreign References:
FR1158223A
GB444046A