Shellcase for controlling reflections of primer shockwaves

Details Shellcase for controlling reflections of primer shockwaves Shellcase for controlling reflections of primer shockwaves

2009-10-23

2010-11-16

Chambers, Troy (Department: 3641)

Ammunition and explosives

Cartridges

Case

C102S430000, C086S019500

Reexamination Certificate

active

07832337

ABSTRACT:
A shellcase body for use as part of an ammunition cartridge, which includes a base portion at one end, a middle portion having a substantially straight sidewall and joined with the base portion, and a shoulder portion joined to and extending from the middle portion. A neck portion may be joined to and extend from the shoulder portion. The shoulder portion is typically annularly shaped and includes a semi-circular sidewall that extends between an aft end and a fore end. The semi-circular sidewall has a curvature that is defined by a circular arc having a predetermined radius and a center that is positioned a distance away from the shellcase body center longitudinal axis. The shoulder portion is joined with the straight sidewall at a secant point of the circular arc, i.e., the straight sidewall defines a secant line that intersects the circular arc at the aforementioned secant point.

REFERENCES:
patent: 5353779 (1994-10-01), Lyon
patent: 6393991 (2002-05-01), Funston et al.
patent: 6523475 (2003-02-01), Smalley et al.
patent: 6832556 (2004-12-01), Smalley, Jr.
patent: 7086336 (2006-08-01), Smalley et al.
patent: 2002/0121211 (2002-09-01), Smalley et al.
patent: 2003/0079639 (2003-05-01), Smalley et al.
patent: 2004/0237827 (2004-12-01), Smalley et al.

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