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:
Apr. 01, 1997
Filed:
Mar. 03, 1995
Mansour Ashtiani-Zarandi, Birmingham, MI (US);
David G Hlavaty, Northville, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A structural prototype of the component part is made by first creating a model of the part which is of cured resin and has a network of interconnected supporting members defining the shape of the part and leaving channels between the supporting members to drain away uncured resin from the model. A hardenable structural material is infiltrated into the channels of the model and cured so that the resin model has become reinforced to provide a structural model of the component part. The hardenable structural material may be a mixture of powdered graphite and resin which is cured by heat. The heat may be sufficient to both cure the hardenable structure material and burn away the cured resin of the model so that the component part is then comprised of the hardened structural material having a network of channels therein where the cured resin of the model has been burned away. The model can then be further strengthened by filling the network of channels with a suitable hardenable material. The method can also be used to make a mold to be used in making a molded component.