Closure fasteners – Knobs
Patent
1987-02-09
1988-11-15
Wolfe, Robert L.
Closure fasteners
Knobs
292357, E05B 100
Patent
active
047844175
ABSTRACT:
A combination door latch and deadbolt assembly includes an improved latch mechanism and deadbolt mechanism designed for use with doors having a variety of standard size backset and cross bore dimensions. The latch and deadbolt mechanisms are carried by escutcheons havings breakaway tabs at varying diametric positions to fit securely within door cross bores of different standard sizes. The latch mechanism further includes an improved mounting arrangement for left- or right-hand mounting and positive centering of lever-type door handles, together with a simplified cam-actuated latch retractor. The deadbolt mechanism includes an improved bolt linkage which provides a desired bolt throw when a relatively small door backset and/or cross bore size is used. The deadbolt mechanism further includes an improved thumb turn rotatable through ninety degrees between orientations representative of deadbolt position.
REFERENCES:
patent: 24214 (1859-05-01), Howland
patent: 1215686 (1917-02-01), McKay
patent: 1546626 (1925-07-01), Crouch
patent: 1641537 (1927-09-01), Halpern
patent: 2175791 (1939-10-01), Brauning
patent: 2230096 (1941-01-01), Voight
patent: 2425239 (1947-08-01), George
patent: 2444819 (1948-07-01), Freysinger
patent: 2676827 (1954-04-01), Schlage
patent: 2677263 (1954-05-01), Smith
patent: 2800347 (1957-07-01), Wardwell
patent: 2961866 (1960-11-01), North
patent: 2978267 (1961-04-01), North
patent: 3018651 (1962-01-01), Morrison
patent: 3186747 (1965-06-01), Hamm
patent: 3220231 (1965-11-01), Wilson
patent: 3228218 (1966-01-01), Wilson
patent: 3232653 (1966-02-01), Wilson
patent: 3240040 (1966-03-01), Wilson
patent: 3253848 (1966-05-01), Wilson
patent: 3323824 (1967-06-01), James
patent: 3354676 (1967-11-01), Wilson
patent: 3363926 (1968-01-01), Wilson
patent: 3425247 (1969-02-01), Etter
patent: 3510161 (1970-05-01), Wilson
patent: 3699788 (1972-10-01), Gerlach
patent: 3790196 (1974-02-01), Sanders
patent: 3899907 (1975-08-01), Prahl
patent: 3910613 (1975-10-01), Nolin
patent: 3971239 (1976-07-01), Lavis
patent: 3990277 (1976-11-01), Mullich
patent: 4011741 (1977-03-01), Nolin
patent: 4012929 (1977-03-01), Soloviff
patent: 4109494 (1978-08-01), Allemann
patent: 4236396 (1980-12-01), Surko
patent: 4272974 (1981-06-01), Hennessy
patent: 4338806 (1982-07-01), Cox
patent: 4422677 (1983-12-01), Gater
patent: 4432576 (1984-02-01), Wantia
patent: 4446707 (1984-05-01), Mullich
patent: 4453753 (1984-06-01), Fayerman
patent: 4470278 (1984-09-01), Hale
patent: 4573334 (1986-03-01), Crepinsek
Fleming Paul D.
O'Day David L.
W & F Manufacturing Inc.
Wolfe Robert L.
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