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:
Jul. 27, 1993
Filed:
Aug. 02, 1978
Applicant:
Inventors:
Klaus Redecker, Nuremberg, DE;
Horst Penner, Furth, DE;
Assignee:
Dynamit Nobel Aktiengesellschaft, Troisdorg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06B / ; C06B / ;
U.S. Cl.
CPC ...
264-31 ; 149-2 ; 149 1992 ; 1491096 ; 102431 ;
Abstract
A method for producing porous propellant charges from a mixture containing a propellant and a filler is described wherein a propellant having a decomposition temperature above 200.degree. C. is employed with a thermally removable filler to provide the charge forming mixture. The mixture is molded into a charge body and is subsequently heated to remove the filler at a temperature that is at least 50.degree. C. below the decomposition temperature of the propellant. Due to the heating at the elevated temperature the filler is wholly or in part removed to form a cavity within the charge body.