Abrading – Abrading process – Razor – knife – or scissors sharpening
Reexamination Certificate
2007-05-01
2007-05-01
Eley, Timothy V. (Department: 3724)
Abrading
Abrading process
Razor, knife, or scissors sharpening
C076S110000, C409S081000, C451S125000, C451S237000, C451S452000
Reexamination Certificate
active
10373443
ABSTRACT:
A key duplication system employs a modular key duplication attachment in combination with a high-speed, rotary powered tool and a profiled abrasive cutter. The attachment comprises a base, a carriage assembly movable relative to the base, a profiled stylus secured to the carriage, a first clamping vise for retaining a specimen key at a fixed (i.e., stationary) position relative to the base and a second clamping vise for retaining a key blank at a fixed position relative to the base. When so-retained, a bottom flat surface of the specimen key and a bottom flat surface of the key blank rest in a common plane and the tip of each key is separated by a first distance. The cutter and stylus are aligned such that movement of the carriage, relative to the base, simultaneously brings them both into contact with appropriate surfaces of the key blank and the specimen key, respectively.
REFERENCES:
patent: 983787 (1911-02-01), Wakeland
patent: 1775921 (1930-09-01), Williams
patent: 3675536 (1972-07-01), Hungerford et al.
patent: 3807276 (1974-04-01), Oliver
patent: 3902382 (1975-09-01), Lieptz
patent: 4051748 (1977-10-01), Sherman
patent: 4657448 (1987-04-01), Alexander
Baker Edward
Parillo Michael
Dinicola Brian K.
Eley Timothy V.
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