Lock mechanism with closed case changeovers

Details Lock mechanism with closed case changeovers Lock mechanism with closed case changeovers

1996-09-25

1998-09-29

Gall, LLoyd A.

Locks

Special application

For closures

70110, 70462, 70467, 292 34, 292 37, 292165, 29216915, E05B 5900

Patent

active

058132554

ABSTRACT:
The invention is a mortise lock constructed for very simple conversion between multiple functions and left and right hand openings. The lock can include or omit retraction of the latch bolt from either side with a key, permanent locking of either side's retractor, removal of the stopworks, simultaneous retraction of the latchbolt and deadbolt, or locking the retractor when the deadbolt is thrown. All of these conversions are accomplished without opening the case cover by the insertion or removal of screws or parts through holes in the cover or case, with the screws either stopping a part from moving or providing a catch upon which a part acts. The changeover between right and left handed openings is accomplished through the backplate with removal of only the armor plate, by removing, reversing, and reinstalling the latchbolt.

REFERENCES:
patent: 2638770 (1953-05-01), Gutman
patent: 3672714 (1972-06-01), Schultz
patent: 3769822 (1973-11-01), Yulkowski
patent: 3808849 (1974-05-01), Alexander
patent: 4572556 (1986-02-01), Foshee
patent: 4583382 (1986-04-01), Hull
patent: 4606203 (1986-08-01), Esser
patent: 4870841 (1989-10-01), Cudd
patent: 4950005 (1990-08-01), Cudd
patent: 4988133 (1991-01-01), Shih
patent: 5027625 (1991-07-01), Krachten
patent: 5201200 (1993-04-01), Hauber
patent: 5301525 (1994-04-01), Doring

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