Key manufacturing method

Details Key manufacturing method Key manufacturing method

1990-06-15

1991-08-27

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Keys

76DIG3, B21K 1300

Patent

active

050423304

ABSTRACT:
A key manufacturing method, which includes a first procedure to produce key bodies through material shape molding, side-edge cutting process, thickness, curvature and length milling process, bitting forming process, and numbering and classification process according to shape of bitting; a second procedure to produce sheaths through copper rod planing process, conical front end milling process, groove lathing process and opposite inner wall trimming process; and a third procedure to fixedly fasten a key body in a sheath to form a unitary round key.

REFERENCES:
patent: 225227 (1880-03-01), Mathes
patent: 2301531 (1942-11-01), Flak
patent: 3464294 (1969-09-01), Kerr
patent: 4735069 (1988-04-01), Steinbach

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