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:
Jul. 28, 1992
Filed:
Jul. 15, 1988
Henning Schaake, Cologne, DE;
Jurgen Bocker, Oberhausen, DE;
Wilfried Becker, Olde, DE;
Jurgen Winkelmann, Meerbusch, DE;
Marc Berville, Bourges, FR;
Joel Leblond, Bourges, FR;
Patrick Montier, Bourges, FR;
Jean-Claude Sauvestre, Saint-Doulchard, FR;
Rheinmetall GmbH, Dusseldorf, DE;
L'Etat Francais represente per le Delegue Ministeriel pour L'Armement, , FR;
Abstract
A subcaliber projectile including a penetrator preferably made of tungsten eavy metal, and having a penetrator tip section and a section following thereafter and extending over the major portion of the penetrator length which is provided with an external thread (helical groove) or circumferential annular grooves to provide a form-locking connection with a discardable propelling cage sabot. To realize improved piercing power for the penetrator, the form-locking region is composed of annular grooves without a pitch, or of a fine metric thread having a thread valley, with a width of approximately one to three times the base width of the groove defining wall or of a thread peak. Preferably a more brittle material is employed in the front penetrator region than in the tail region, and a further indentation structure is incorporated in the first frontal thread turns or grooves of the form-locking region.