Double-acting locking device for joint control

Details Double-acting locking device for joint control Double-acting locking device for joint control

1986-11-05

1987-11-10

Wolfe, Robert L.

Locks

Operating mechanism

Key

70338, 70339, 70363, E05B 2708, E05B 3508

Patent

active

047048840

ABSTRACT:
A double-acting locking device of the axial pin tumbler type for joint control. A rotary plug, a control plug, a master plug and a stationary plug fit in contact with each other within a cylinder. Connections and disconnections between those plugs are effected by the actions of top pins, master pins and bottom pins, all of which fit into axial pin holes formed in those plugs and are spring-biased forward. The selection of the connections and disconnections of the plugs is effected by a first key, a second key, and a master key. The rotational directions and angles of the actuating shaft set by the first and second keys are controlled by the actions of front and rear face projections on the control plug, a rear face recess of the rotary plug, and a front face recess of the master plug.

REFERENCES:
patent: 1141463 (1915-06-01), Hurd
patent: 3149321 (1964-09-01), Ward
patent: 3264632 (1966-08-01), Ward
patent: 3729964 (1973-05-01), Hsu
patent: 3738136 (1973-06-01), Falk
patent: 3916657 (1975-11-01), Steinbach

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