Locks – Special application – For control and machine elements
Patent
1988-10-14
1989-06-27
Wolfe, Robert L.
Locks
Special application
For control and machine elements
70417, F16B 4100
Patent
active
048417564
ABSTRACT:
A locking device for use with a standard padlock of the type having a lock base and a generally U-shaped shackle, one leg of which is pivotally mounted in the base, the device comprising a body having an opening therein and a socket in the body for receiving the padlock, the socket intersecting the opening so that a portion of a padlock received in the socket protrudes into the opening. An engaging member is disposed in the socket for engaging the shackle of the padlock when the padlock is locked to retain the padlock in the socket, while allowing the padlock to be freely inserted and removed from the socket when the padlock is unlocked. The device preferably has a first camming surface on the engaging member for engaging the shackle of a padlock in the socket and adapted for pivoting the shackle of an unlocked padlock to clear the engaging member to permit withdrawal of an unlocked padlock from the socket; a second camming surface on the engaging member for pivoting the shackle of an unlocked padlock to clear the engaging member to permit the unlocked padlock to be inserted into the socket; and a third camming surface at the bottom of the socket for pivoting the shackle of an unlocked lock urged against it to bring the shackle back into locking orientation with the lock base and into position to engage the retaining means after the shackle has cleared the retaining means.
REFERENCES:
patent: 2641124 (1953-06-01), Gallagher
patent: 3415085 (1968-12-01), Eble
patent: 4620718 (1986-11-01), Mickelsa
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