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:
Dec. 12, 2006
Filed:
Aug. 24, 2001
Lennart Selin, Kristinehamn, SE;
Reijo Vesa, Karlskoga, SE;
Lennart Selin, Kristinehamn, SE;
Reijo Vesa, Karlskoga, SE;
BAE Systems Bofors AB, Karlskoga, SE;
Abstract
The invention relates to a canard fin unit intended for guiding artillery projectiles () fired on ballistic trajectories, which comprises a number of identical canard fins, deployable from a first passive, retracted position into a second active position once the projectile () associated with the fin unit has been launched from the barrel from which it is intended to be fired, the canard fins () in the active position being individually controllable. The invention resides in the fact that each canard fin () is individually supported and controlled in its own swivel arm (), extending in the longitudinal direction of the projectile, which arm is in turn pivoted about its own swivel shaft () arranged transversely to the direction of flight of the projectile, the swivel arms () of all canard fins () being moved together from the retracted to the deployed position by one and the same operating element (), displaceable in the longitudinal direction of the projectile. In an especially preferred embodiment of the canard fin unit according to the invention the said fins () are each coupled to their respective control elements (),),) only when they reach their respective deployed positions.