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:
Aug. 15, 2000
Filed:
Dec. 18, 1997
Applicant:
Inventors:
Donald Lee Knaresboro, San Jose, CA (US);
Forrest Ray Goodson, San Jose, CA (US);
Frank Stephen Inman, Morgan Hill, CA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06D / ;
U.S. Cl.
CPC ...
102291 ; 102287 ; 102288 ; 102325 ; 264-31 ;
Abstract
A method for manufacturing solid rocket motors comprises placing a mandrel having at least one collapsible solid slot former positioned thereon substantially centrally along the axis of a rocket case, casting uncured solid rocket propellant about the mandrel and the collapsible solid slot former, curing the solid propellant, removing the mandrel and pressurizing the propellant and slot former, causing the slot former to collapse, and easily removed from the cured propellant.