Locks – Operating mechanism – Key
Patent
1998-02-10
1999-04-13
Barrett, Suzanne Dino
Locks
Operating mechanism
Key
70358, 70495, E05B 2700
Patent
active
058932852
ABSTRACT:
A lock cylinder, operable by a key having key contours which include coded key contours. A cylindrical rotor is rotatably mounted within a stator. A keyway extends longitudinally into the rotor. A plurality of primary pinways extend transverse to the keyway, between the keyway and stator bore. The primary pinways meet the stator bore at a stator plane. A primary pin extends in each of the primary pinways, each primary pin having a contact end and a clearing end. Each primary pin has a coded length which corresponds with one of the coded key contours. At least one cam supports each primary pin in an interfering position where it interferes with rotation of the rotor within the stator when the key is not inserted into the keyway. When the key is inserted in the keyway, the primary pin is allowed to fall and follow the key contours. When the primary pin falls into its corresponding coded key contour, the clearing end of said pin is even with the stator plane, thus allowing the rotor to rotate, and unlocking the lock.
REFERENCES:
patent: 2149733 (1939-03-01), Hagendorn
patent: 2754673 (1956-07-01), Schachinger
patent: 3303677 (1967-02-01), Bauer
patent: 3479849 (1969-11-01), Check
patent: 4103526 (1978-08-01), Surko, Jr.
patent: 4196604 (1980-04-01), Vorob
patent: 4221121 (1980-09-01), Tietz
patent: 4612787 (1986-09-01), Prunbauer et al.
patent: 5016455 (1991-05-01), Hennessy
patent: 5050412 (1991-09-01), Errani
patent: 5222383 (1993-06-01), Fann et al.
patent: 5475998 (1995-12-01), Raskevicius et al.
patent: 5485735 (1996-01-01), Laabs et al.
patent: 5553473 (1996-09-01), Keller
patent: 5617750 (1997-04-01), Preddey
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