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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.:

US 5578158 B1

PDFFull Text
Date of Patent:
Nov. 26, 1996

Filed:

Mar. 01, 1994

Method and system for forming a composite product from a thermoformable

Applicant:
Inventors:

Timothy G Gutowski, Newton, MA (US);

Gregory P Dillon, Somerville, MA (US);

Haorong Li, Cambridge, MA (US);

Sukyoung Chey, Cambridge, MA (US);

Assignee:

Massachusetts Institute of Technology, Cambridge, MA (US);

Attorneys:

Engellenner; Thomas J.

Laurentano; Anthony A.

Primary Examiner:

Michele K Yoder

Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
156285 ; 156222 ; 156286 ; 156382 ; 1565833 ; 264510 ; 264511 ; 264258 ; 425388 ; 425389 ;
Abstract

A system and method for reducing the occurrence of undesirable deformations (e.g., wrinkling) in a reinforced thermoformable workpiece. The reduction in undesirable deformations is achieved by increasing the buckling resistance of the workpiece by employing a supplemental reinforcing structure. The reinforcement, in combination with a pair of shaping diaphragms, increase the effective buckling resistance applied to the workpiece during the fabrication of a composite product. The method includes forming a workpiece from a plurality of layers of a thermoformable material, and applying to at least one side of the material an external reinforcing structure to form a reinforced workpiece having a top side and a bottom side. At least one of the top or bottom sides of the reinforced workpiece is placed in contact vith a diaphragm, thus forming a shaping assembly. The shaping assembly is then urged into contact with a shaping surface of a work tool to form a composite product, having a shape complementary to the shape of the tool. The composite product is then removed from the tool.

Find Patent Forward Citations

Gutowski, Timothy. (1996). Method and system for forming a composite product from a thermoformable (U.S. Patent No. 5578158). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5578158

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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