Lock core

Details Lock core Lock core

1988-02-11

1989-08-22

Gall, Lloyd A.

Locks

Operating mechanism

Key

E05B 2708

Patent

active

048584550

ABSTRACT:
The improved lock core comprises a cylindrical casing receiving a rotatable spindle formed with a co-rotatable outer ring through which upper plug followers extend, biased by lower plug followers received in a lower plug non-rotatably secured to the casing with a lock pin. A pair of protuberances are formed closely adjacent each other on an upper surface of an outer ring to receive a tenon of a valid key inserted through a key hole in the cylindrical casing. The protuberances enable the key to apply rotative torque to the outer ring while a front edge of the key depresses the upper plug followers a sufficient depth enabling the outer ring and spindle to rotate relative to the lower plug.

REFERENCES:
patent: 2089300 (1937-08-01), Schlitz
patent: 3339384 (1967-09-01), Greenwald
patent: 3486353 (1969-12-01), Pilvet
patent: 3648492 (1972-03-01), Walters et al.
patent: 4068510 (1978-01-01), Neary

Affiliated with

Also associated with

Rating

Lock core does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2412302