192 clutches and power-stop control – Clutches – Torque responsive
Patent
1989-05-09
1991-08-20
Gall, Lloyd A.
192 clutches and power-stop control
Clutches
Torque responsive
70189, 70218, 70386, 70422, 70472, 192 71, 464 35, E05B 1310, F16D 43208
Patent
active
050406523
ABSTRACT:
A permutation lock chamber has a chamber shaft extending therethrough which is held against rotation when the chamber is in a locked condition and which is rotatable when the chamber is in an unlocked condition. The chamber shaft is connected to the shaft of an outer door handle through a clutch. When the chamber is in its unlock condition and the outer door handle is rotated, the clutch engages and the chamber shaft rotates with the outer door handle shaft. When the chamber is in its locked condition and the outer door handle is rotated, the clutch slips to permit rotation of the outer door handle shaft without rotation of the chamber shaft.
REFERENCES:
patent: 1611940 (1926-12-01), Ohmer
patent: 1671521 (1928-05-01), Fisher
patent: 1899996 (1933-03-01), Sullivan
patent: 1910125 (1933-05-01), Root
patent: 2366841 (1945-01-01), Dodge
patent: 2544809 (1951-03-01), Stanley
patent: 2885918 (1959-05-01), Allimann
patent: 3040556 (1962-06-01), Rosenhagen
patent: 4679420 (1987-07-01), Yang
patent: 4773240 (1988-09-01), Foshee
patent: 4786271 (1988-11-01), Menn
patent: 4854143 (1989-08-01), Corder et al.
patent: 4941697 (1990-07-01), Fan
Branover Alexander
Fish Aaron M.
Leszek Zgorzak
Gall Lloyd A.
Ilco Unican Inc.
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