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. 01, 2020
Filed:
Mar. 26, 2018
U.s. Government As Represented BY the Secretary of the Army, Dover, NJ (US);
Thomas Recchia, Succasunna, NJ (US);
Yin Chen, West Milford, NJ (US);
Mitchell Stolk, Kearny, NJ (US);
David Hosier, Lafayette, NJ (US);
Sarah Hunt, Mount Arlington, NJ (US);
The United States of America as Represented by the Secretary of the Army, Washington, DC (US);
Abstract
Pressure relief holes are sized and positioned on each fin of a projectile to allow high pressure from one side of the fin due to canard and fin interaction to bleed to a low pressure area on the opposite side of the fin. The location of the pressure relief holes target pressure differences due to canard roll control downwash while not affecting pressure differences due to projectile attitude. The fin planform area remains small enough to meet packaging and fire requirements for this type of munition and large enough to aerodynamically stabilize the airframe thereby enabling a more robust pitch and yaw autopilot design.