Closure fasteners – Knob-attaching devices
Patent
1992-07-08
1993-03-02
Moore, Richard E.
Closure fasteners
Knob-attaching devices
292357, E05B 300
Patent
active
051903270
ABSTRACT:
A tubular door lock for low safety comprising two knobs provided with a tubular shaft combined with a bearing plate, the tubular shaft having a hook and a projection to combine with an actuating plate, a square rod provided to fit in the actuating plates at both ends to enable the two knobs--the inner and the outer one--to move together at the same time.
REFERENCES:
patent: 3471190 (1969-10-01), Wansbrough et al.
patent: 3716261 (1973-02-01), Gerlach
patent: 4588221 (1986-05-01), Miller et al.
patent: 4784418 (1988-11-01), Pearson et al.
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