Closure fasteners – Bolts – Sliding
Patent
1974-02-11
1977-08-09
Moore, Richard E.
Closure fasteners
Bolts
Sliding
292170, 292DIG37, E05C 106
Patent
active
040406520
ABSTRACT:
A door lock having a press button operable to retract the door bolt from its engaged to its released position, and a separate operating means to positively lock the bolt whereby the press button is raised or lowered from its normal position so as to serve as a visual signal indicating whether the bolt is locked or is free for normal retraction.
REFERENCES:
patent: 408552 (1889-08-01), Towne
patent: 2803481 (1957-08-01), Williams et al.
patent: 2804330 (1957-08-01), Ogley
patent: 3685036 (1972-08-01), Torok
Arfelt Soren Christian Schoubye
Clausen Ib Christian
Fischer Jean Arnold
Fynbo Knud Hansen
Jensen Johannes
Daempa A/S
Moore Richard E.
O'Brien Anthony A.
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