The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2004
Filed:
Mar. 26, 2003
Stefan Thiesen, Willich, DE;
Dieter Jungbluth, Herschbach, DE;
Rheinmetall W & M GmbH, Unterluss, DE;
Abstract
A projectile body having a groove-shaped recess ( ), in which a guide band ( ) is disposed. To permit use of a relatively wide guide band ( ), while preventing the band from being destroyed as the projectile body ( ) passes through the gun barrel, and preventing significant copper-plating of the barrel, the guide band ( ) is assembled from two partial guide bands ( ), with the relatively narrow, first partial band ( ), which faces the base ( ) of the projectile, comprising copper or a copper alloy and providing a seal against the propellant gases acting on the projectile rear under high pressure. The second, considerably wider partial guide band ( ) essentially comprises plastic, and includes at least one hollow space ( ), which lends it adequate deformation reserves with respect to the high surface pressure acting on this partial guide band ( ) when the projectile body ( ) passes through the barrel.