3860055 is referenced by 57 patents and cites 8 patents.

A shutter device embodying a mechanism for raising and lowering the shutter, a feeler sensitive to external thermal and light radiation, the feeler being coupled with the raising and lowering mechanism and upon exceeding a predetermined radiation intensity triggering the mechanism for lowering the shutter.

Title
Shutter device
Application Number
05/366,711
Publication Number
3860055
Application Date
June 4, 1973
Publication Date
January 14, 1975
Inventor
Wild Ernst
Agent
Kleeman Werner W
Assignee
Stafa Control System
IPC
E05f 15/20
E06B 09/32
E06B 09/28
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