Push button-operated flush type handle assembly

Closure fasteners – Operators with knobs or handles

Patent

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Details

292DIG31, 292DIG37, 292DIG65, 70208, E05B 300

Patent

active

055561454

ABSTRACT:
A push-button-operated flush type handle assembly is provided. The assembly enables a person trapped in a cabinet to unlock and open a cabinet door from inside even when push button 16 is locked from outside. In the assembly: handle 4 is pivoted to housing 2 of casing 1 and swingably urged by spring 20 in its projecting direction; projection 7 for rotatably driving lock plate 6 is formed in the handle; latch 29 is mounted in guide hole 3 of the casing and slidably urged by spring 22 toward pivot 5; locking projection 12 engaged with and disengaged from receiver projection 11 of the handle is formed in the latch; oblique cam surface 19 is formed in the latch which has operating projection 14 in its rear surface; escape hole 15 of bottom wall of the casing permits the projection 14 to pass therethrough; and, oblique cam surface 18 is formed in the push button or in push-button guide 17 fitted to the push button.

REFERENCES:
patent: 1558980 (1925-10-01), Halinka
patent: 2253547 (1941-08-01), Adams
patent: 2461393 (1949-02-01), Paxton
patent: 2486586 (1949-11-01), Brittain et al.
patent: 3044815 (1962-07-01), Soss
patent: 5457971 (1995-10-01), Yamada

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