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:
Sep. 09, 2008
Filed:
Jun. 08, 2005
Applicants:
Patrick J. Hood, Bellbrook, OH (US);
David E. Havens, Bellbrook, OH (US);
Matthew C. Everhart, Fairborn, OH (US);
Inventors:
Patrick J. Hood, Bellbrook, OH (US);
David E. Havens, Bellbrook, OH (US);
Matthew C. Everhart, Fairborn, OH (US);
Assignee:
Cornerstone REsearch Group, Inc., Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 33/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of fabricating and using a removable, inflatable mandrel of shape memory polymer for use in manufacturing composite parts including the steps of providing a processed pre-form of shape memory polymer, replicating a mold with the shape memory polymer, using the mold as a mandrel in the creation of composite parts, and removing the shape memory mandrel quickly and easily from the part without damage to the finished part.