Double action barrel lock

Details Double action barrel lock Double action barrel lock

1981-02-23

1983-07-26

Wolfe, Robert L.

Locks

Portable

Padlocks

70386, 70395, E05B 6736

Patent

active

043948200

ABSTRACT:
A lock of the type having an elongated housing open at the rear end with internal operating mechanism to release locking means, in which the mechanism comprises a collar which is spring biased forwardly and a locking stem mounted in the collar and spring biased rearwardly in relation thereto. The insertion of an operating tool causes movement of the stem forwardly a predetermined amount, allowing the tool to engage the collar. However, the insertion of a picking tool into the collar forces the stem forwardly in relation to the collar, a greater distance increasing the overall length of the mechanism to an extent that even when the collar is moved rearwardly as far as possible, the forward end of the stem does not move rearwardly far enough to release the locking means. In one embodiment of the invention, the end of the stem protrudes far enough that operating tools normally used for this type of lock cannot be used to open the lock.

REFERENCES:
patent: 3186196 (1965-06-01), Moberg
patent: 3835674 (1974-09-01), Hoyt
patent: 4063434 (1977-12-01), Moberg
patent: 4155232 (1979-05-01), Haus

Affiliated with

Also associated with

Rating

Double action barrel lock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double action barrel lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double action barrel lock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2217457