Tamper-proof axial tumbler type lock

Locks – Operating mechanism – Key

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

70404, 70421, E05B 1514, E05B 1902, E05B 2708

Patent

active

041128206

ABSTRACT:
An axial tumbler type lock having a split cylinder within a stationary lock casing contains a set of regular spring-urged split tumblers which bridge the shear line to render the lock active and which are depressed to the shear line by a tubular key to allow turning of the lock to a release position. A modified split tumbler with a reduced forward pin extension also bridges the shear line of the lock and responds only to a special key having a forward pin extension for depressing the special split tumbler to the shear line. Additionally, the lock possesses one or more hidden tumblers in the non-rotational lock cylinder section which are spring-urged and have the capability of moving forwardly into the pocket for the special tumbler or into the pockets of any of the regular tumblers if the proper key is not employed to depress the special tumbler to the shear line, or if the rotational section of the lock cylinder is somehow turned without the proper key in place. Simplicity of construction and adaptability of the invention to a well-known "Ace" lock are featured.

REFERENCES:
patent: 3813906 (1974-06-01), Kerr
patent: 3916657 (1975-11-01), Steinbach
patent: 4006615 (1977-02-01), Szova

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Tamper-proof axial tumbler type 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 Tamper-proof axial tumbler type lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper-proof axial tumbler type lock will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2378681

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.