Closure fasteners – Bolts – Sliding and swinging
Patent
1979-12-03
1982-03-30
Moore, Richard E.
Closure fasteners
Bolts
Sliding and swinging
E05C 502
Patent
active
043221009
ABSTRACT:
Improvements in a doorstop mechanism include a swivel bar mounted on a doorjamb to swing between a position in the path of the door to block its opening and a position retracted out of the path of door-opening movement. The stop bar can be held in door-blocking position by engagement of a rib-and-groove latch. The stop bar can be moved into latch-engaged position by swinging of a keeper to move cooperating cylindrical or edgewise cams relatively which movement shifts the stop bar into latched position in opposition to the force of a latch-releasing spring. The improvements include strengthening the doorstop mechanism and adding members to make it more difficult to break down the door by force such as kicking it and modifications to permit parts to be reversed for use with doors which open to the right away from one (right-hand doors) and which open to the left away from one (left-hand doors).
REFERENCES:
patent: Re29162 (1977-03-01), McLennan
patent: 86658 (1869-02-01), Farmer
patent: 2166620 (1939-07-01), Bellah
Ganjo John W.
McLennan Lyall A.
Pomarolli Tom
Beach Robert W.
Brown Ward
McLennan Lyall A.
Moore Richard E.
Winters Douglas E.
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