U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Bullet having sections separable upon impact

Patent 4947755 Issued on August 14, 1990. Estimated Expiration Date: Icon_subject December 1, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

90732

219840

Inertial penetrator projectile
Patent #: 4716834
Issued on: 01/05/1988
Inventor: Wallow ,   et al.

Bullet having sections separable upon impact and method of fabrication Patent #: 4836110
Issued on: 06/06/1989
Inventor: Burczynski

Inventor

Application

No. 444394 filed on 12/01/1989

US Classes:

102/506, Fragmenting102/501, PROJECTILES102/507, Dumdum or mushrooming102/508With cavity

Examiners

Primary: Jordan, Charles T.
Assistant: Lieberman, Rochelle

Attorney, Agent or Firm

Foreign Patent References

  • 7915 GB 02/13/1893

International Class

F42B 012/34

Abstract

A rifle or handgun bullet having a cylindrical base and a leading end of ogival shape extending for a portion of its length is divided into a plurality of sections by parting lines extending radially inwardly from the outer periphery of the body towards the central axis and terminating along lines spaced from the central axis of the bullet. The parting lines extend longitudinally the full axial length of the body of the bullet and, upon impact with a lubricious target, the bullet separates into individual sections which travel separately and create a plurality of impinging pressure zones within the target. The bullet is disclosed in embodiments with and without a frusto-conical cavity extending into the forward, blunt end, terminating in a plane through the juncture of the base and leading end. In the embodiment having the cavity, the radial parting lines terminate outwardly of the cavity wall.

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