Closure fasteners – Operators with knobs or handles
Patent
1991-07-29
1991-12-17
Moore, Richard E.
Closure fasteners
Operators with knobs or handles
292 92, 292244, 292172, E05C 1502
Patent
active
050729772
ABSTRACT:
A latch retraction device for narrow stile doors which may be hinged either on the left side or on the right side, and which utilizes a push or pull actuator for retracting the latch instead of utilizing a rotary knob for that purpose. The device utilizes inter-engaged toothed elements to provide linear to rotary motion in a novel configuration of parts which permits one set of parts to be utilized to provide either a push or a pull actuation for latch retraction with either a right hand or left hand door and thereby eliminating the necessity to manufacture and inventory a large number of parts to accommodate all four types of desired uses.
REFERENCES:
patent: 3561805 (1971-02-01), Shaw
patent: 3869159 (1975-03-01), Eads
patent: 4725085 (1988-02-01), Hu et al.
Korban Fouad F.
Millman Norman A.
Moore Richard E.
Trans-Atlantic Company
Udell Walter B.
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