Calibrated taper crimp die

Ammunition and explosive-charge making – Ammunition loading – Crimping

Reexamination Certificate

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Details

C086S039000

Reexamination Certificate

active

07854188

ABSTRACT:
An ammunition case reloading die assembly, and method of use, that provides calibrated adjustment of taper imposed on the mouth of an ammunition case. A calibrating ring or cap bears indicia in the form of polygonal faces, splines or radially-directed markings. The ring or cap rotates with an upper portion of the die for threaded adjustment of the position of the die within the frame of a reloading press. The die has a longitudinal bore, a lower portion whereof is tapered for imposing a tapered crimp upon the mouth of the case. The taper of the longitudinal bore is preferably chosen to make each partial rotation of the calibrating ring or cap through one indicium correspond to increasing the taper imposed on the mouth by one thousandth of an inch per case longitudinal inch.

REFERENCES:
patent: 1550284 (1925-08-01), Schmitt
patent: 1864880 (1932-06-01), Zimmerman
patent: 2700915 (1955-02-01), Pattison
patent: 3345904 (1967-10-01), Kleiss
patent: 3745875 (1973-07-01), Kennedy
patent: 4189980 (1980-02-01), Schaenzer
patent: 4336739 (1982-06-01), Alexander
patent: 4385546 (1983-05-01), Lee
patent: 4593598 (1986-06-01), Gunder
patent: 4637291 (1987-01-01), Alexander
patent: 4836078 (1989-06-01), Lee
patent: 4862567 (1989-09-01), Beebe
patent: 4869148 (1989-09-01), Tucker
patent: 5079986 (1992-01-01), Lee
patent: 5635661 (1997-06-01), Tuftee
patent: 5649465 (1997-07-01), Beebe
patent: 6397720 (2002-06-01), Fox et al.
patent: 7703369 (2010-04-01), Lee
patent: 2002/0157524 (2002-10-01), Tuftee
Lee Carbide Factory Crimp Die Instructions (one sheet); authored by Lee Precision, Inc., 4275 Highway U, Hartford, Wisconsin.
Catalog: “Lee Reloading 2010” by Lee Precision, Inc. (same address; see, in particular, p. 3: “Lee Carbide Factory Crimp Die.”

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