Two-section type pickproof lock assembly

Locks – Portable – Padlocks

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

70DIG37, 70358, 70419, 70403, 70375, E05B 6724

Patent

active

051486903

ABSTRACT:
A pickproof lock assembly has two lock sections which can be opened by a single key. The first lock section includes a key plug and a first set of tumbler members which engage radial pits provided on the key so as to disengage the key plug from the lock shell. The second lock section includes first and second movable plug halves disposed inside the lock shell and a second set of tumbler members. The key has axially extending curve protrusions on one end to move the first and second plug halves and align groove-free spaces on the surface of the first and second plug halves to form a continuous annular path. The second set of tumbler members contacts the first and second plug halves at the annular path to permit rotation of the key plug relative to the lock shell. When non-alignment of the groove-free space of the first and second plug halves occurs due to insertion of a wrong key, rotation of the key plug by the wrong key causes the second set of tumbler members to engage notches on the surface of the first and second plug halves and prevent further rotation of the key plug.

REFERENCES:
patent: 4006614 (1977-02-01), Decker
patent: 4098100 (1978-07-01), Wah
patent: 4193277 (1980-03-01), Lo
patent: 4838051 (1989-06-01), Yang

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

Two-section type pickproof lock assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-section type pickproof lock assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-section type pickproof lock assembly will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1060640

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