Locks – Operating mechanism – Key
Patent
1994-04-04
1996-04-16
Meyers, Steven N.
Locks
Operating mechanism
Key
70373, E05B 2704
Patent
active
055071635
ABSTRACT:
An interchangeable lock core includes a main body, an operative ring, and a core body. The main body includes upper and lower sections, the upper section having two sides and a plurality of first holes each for receiving a driver and a spring therein, and the lower section having a first bore extending in a longitudinal axis thereof and a transverse reception hole in a mediate section thereof. The reception hole extends upwardly into the upper section and defines first and second operative edges respectively at two sides of the upper section. A blind hole is defined in the upper section and communicates with the reception hole for receiving a second spring and a ball therein. The operative ring is received in the reception hole of the lower section of the main body and includes a second bore in alignment with the first bore and an extension which projects outwardly from an outer periphery thereof and extends along an arc thereof. The extension has first and second catches at two sides thereof and a dimple defined in an upper face thereof. At least one second hole is defined in the extension, and aligns with an associated first hole in the upper section of the main body, and communicates with the second bore of the ring. The core body is received in the first bore of the main body and the second bore of the operative ring and includes a keyway and a plurality of third holes each aligning with an associated first hole.
REFERENCES:
patent: 1417132 (1922-05-01), Barker
patent: 2814941 (1957-12-01), Best
patent: 3464243 (1969-09-01), Hawkins
patent: 4386510 (1983-06-01), Best et al.
Meyers Steven N.
Pham Tuyet-Phiuong
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