Cylinder lock assembly

Details Cylinder lock assembly Cylinder lock assembly

2008-04-22

2008-04-22

Engle, Patricia (Department: 3673)

Locks

Operating mechanism

Key

C070S350000, C070S352000, C070S377000

Reexamination Certificate

active

11348020

ABSTRACT:
The cylinder lock assembly includes a cylindrical lock housing having an inner core extending between first and second ends. The inner core defines a core axis extending through the first and second ends. A lock cylinder is received in the inner core for rotational and axial movement in the inner core. The lock cylinder includes an axially extending key slot for receiving a key therein and a radially extending slot extending through the lock cylinder and intersecting the key slot. A rotation plate assembly is received in the radially extending slot and blocks at least a portion of the key slot. The rotation plate includes first and second rotation plate members which are movable relative to each other. A first biasing member engaging the first and second rotation plate members urges the second rotation plate member radially away from the first rotation plate member. The first and second rotation plate members define a space therebetween having a variable radial dimension for receiving therethrough the key received in the key slot, wherein upon insertion of the key through the space and into the key hole, the key engages the first rotation plate member to urge the first rotation plate member radially toward the second plate member against the urging of the first biasing member to allow the key to enter the key slot through the space.

REFERENCES:
patent: 2123940 (1938-07-01), Gray
patent: 2766611 (1956-10-01), Hagel
patent: 3707863 (1973-01-01), Schwab et al.
patent: 3735614 (1973-05-01), Keller-Volper
patent: 3969915 (1976-07-01), Droske
patent: 4074548 (1978-02-01), Milton
patent: 4326396 (1982-04-01), Steinbach
patent: 4601184 (1986-07-01), Doinel
patent: 4682484 (1987-07-01), Yeh
patent: 5174141 (1992-12-01), Ohyabu
patent: 5355703 (1994-10-01), Elinski et al.
patent: 5704234 (1998-01-01), Resch
patent: 5848540 (1998-12-01), Pieper
patent: 6098434 (2000-08-01), Liou
patent: 6201317 (2001-03-01), Kemmann et al.
patent: 6236121 (2001-05-01), Kemmann et al.
patent: 6523382 (2003-02-01), Dimig et al.
patent: 20 56 690 (1972-05-01), None
patent: 0 571 172 (1993-11-01), None
patent: 02279882 (1990-11-01), None

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