Join
today

Boliven PRO is more than just patent search

  • Build and save lists using the powerful Lists feature
  • Analyze and download your search results
  • Share patent search results with your clients

Patents »

US4644866: Ammunition round

Share

Filing Information

Inventor(s) Leroy J. Sullivan ·
Assignee(s) Branscomb Corporation N.V. ·
Attorney/Agent(s) Needle & Rosenberg ·
Primary Examiner Harold J. Tudor ·
Application Number US6621735
Filing date 06/18/1984
Issue date 02/24/1987
Predicted expiration date 06/18/2004
U.S. Classifications 102/439  · 102/501  ·
International Classifications F42B 1100  ·
Kind CodeA
International Classifications 102430;433;434;436;439;501;517-523 ·
Foreign Priority EP83106054.6 - 06/22/1983 · EP84100331.2 - 01/13/1984 · EP84106760.6 - 01/13/1984 ·
19 Claims, No Drawings


Abstract

In an ammunition round a substantially full bore diameter bullet has a plurality of elongate grooves either helically formed or parallel with the longitudinal axis of the bullet and a sabot which has a body and fingers which engage with the grooves and seal the bullet in a casing, the sabot having a slightly larger diameter than the bullet so that the sabot is engraved by the refling slots in the barrel through which the round is to be fired, in order to rotate the bullet. In alternative constructions the grooves contain elongate elements or a plurality of spherical elements to prevent the conically tapered slug or bullet from tilting or cocking in the barrel after firing.

Independent Claims | See all claims (19)

  1. 1. An ammunition round comprising: a casing for containing a propelling charge; a full bore diameter bullet which has a plurality of full length grooves in its outer surface extending generally longitudinally of the bullet; and a homogeneous plastics sabot into which the bullet seats and which seals the bullet into the casing, the sabot comprising a body part with a diameter greater than the diameter of the bullet and a plurality of spaced apart fingers engaging respective ones of the grooves in the bullet to cause the bullet to spin as the sabot is rotated by engagement of said body part with rifling grooves in a barrel through which the round is fired.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US1218546 Gillis Mar 1917
US3164092 REMINGTON ARMS CO INC Reed et al. Jan 1965
US3916792 PULSEPOWER SYSTEMS Elmore et al. Nov 1975
US4056060 The Government of the United States, as represented by the Secretary of the Army Devine Nov 1977
US4063511 BULLARD JAMES M Bullard Dec 1977
US4083306 Olin Corporation Woodring Apr 1978
US4353302 A/S Raufoss Ammunisjonsfabrikker Strandli et al. Oct 1982
US4444114 Rheinmetall GmbH Bisping et al. Apr 1984

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
DE2583098Aug 1933
DE2831574EUROMETAAL NVFeb 1979
FR736690Nov 1932
FR799933EXPL DES BREVETS O MATTER S EJun 1936
FR861167ARMES DE GUERRE FAB NATFeb 1941
FR1124740Apr 1955
FR2420116HAUT RHIN SA MANUF MACHINESMar 1978
FR2365098RHEINMETALL GMBHApr 1978
GB107088Jun 1917