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:
Dec. 18, 1990
Filed:
Apr. 27, 1989
Applicant:
Inventor:
Craig Douglas, Lexington, MA (US);
Assignee:
University of Lowell, Lowell, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 71 ; 428 76 ; 428 99 ; 428913 ; 4285428 ; 52720 ; 52726 ; 52727 ;
Abstract
A self-deploying structural element formed of a core of temperature sensitive expanding foam, a load carrying component of advanced composite material, and an outer retaining jacket. A heat generating means such as resistance heating wires is included to initiate deployment of the structure. The heating of the structure causes the foam core to expand, unrolling or unfolding the structure. The heat also cures the advanced composite material to a rigid form. The retaining jacket is preferably a heat shrink jacket which contracts around the composite material.