发明名称 Force immune door latch
摘要 An improved force immune door knob/latch is provided which, by use of resiliently-biased ratcheting means, is rendered immune to force resulting from the application of excess torque to the door knob. These resiliently-biased ratcheting means are such that their biasing force is oriented in a direction perpendicular to the longitudinal axis of the door latch shaft.
申请公布号 US4679420(A) 申请公布日期 1987.07.14
申请号 US19850688338 申请日期 1985.01.02
申请人 YANG, TAI-HER 发明人 YANG, TAI-HER
分类号 E05B17/00;(IPC1-7):E05B13/10 主分类号 E05B17/00
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