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:
Apr. 03, 1984
Filed:
Jan. 19, 1983
Applicant:
Inventor:
Stig Hallstrom, Karlskoga, SE;
Assignee:
Aktiebolaget Bofors, Bofors, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42B / ;
U.S. Cl.
CPC ...
244-328 ; 244-324 ; 244 49 ;
Abstract
In an ammunition unit in the form of a shell (1), projectile or the like which is fin-stabilized, an extendable fin is utilized which is intended to be retracted during firing in a barrel or the like and to be extended as soon as the shell or the like has left the barrel. The extendable fin is intended to increase the stability of the ammunition unit in the ballistic trajectory. The extendable fin consists of two fin parts (4' and 4') supported separately in relation to each other and which in their extended positions are joined together and form the fin.