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:
Mar. 31, 1981
Filed:
May. 08, 1979
Applicant:
Inventor:
William L Black, China Lake, CA (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F42B / ;
U.S. Cl.
CPC ...
102 921 ; 102D / ;
Abstract
A spin-velocity actuated ball valve in a hollow-nose, hollow base projectile is positioned to selectively close or open a projectile. In the closed position normal propellant pressure or projectile carried propellant causes the projectile to achieve operational velocity. In the open position a conduit through the projectile reduces frontal area and tail drag caused by turbulence.