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:
Oct. 19, 1993
Filed:
Dec. 20, 1989
Applicant:
Inventors:
Thomas B Downes, Ayrshire, GB;
John D Pearson, Ayrshire, GB;
Assignee:
Royal Ordnance plc, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06B / ;
U.S. Cl.
CPC ...
149 194 ; 149198 ; 149 96 ; 149 98 ; 149100 ;
Abstract
Nitrocellulose propellant compositions are provided comprising zinc oxide as ballistic modifier, advantageously in conjunction with one or more conventional ballistic modifiers for example, lead or copper compounds such as lead stearate, lead acetophthalate, lead B-resorcylate and basic copper salicylate. The propellant compositions exhibit good quality plateau burning over a useful pressure range for a wide range of burning rates.