发明名称 Magnetic captive key switch lock
摘要 A cylinder and plug type lock mechanism drivingly connects an authorized key to the actuator of a switch device and captivates the key when turning the switch on. A magnetic latch activated in the captive position of the key, prevents return of the key to its release position. A magnetic release element is positioned on the key against the lock mechanism to disengage the magnetic latch.
申请公布号 US3941954(A) 申请公布日期 1976.03.02
申请号 US19740504760 申请日期 1974.09.10
申请人 WINTRINGHAM, ROBERT E. 发明人 WINTRINGHAM, ROBERT E.
分类号 E05B47/00;H01H21/18;(IPC1-7):H01H27/08;E05B35/08 主分类号 E05B47/00
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