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:
Jul. 14, 1992
Filed:
Feb. 20, 1991
Applicant:
Inventor:
Ronald A Howard, Brook Park, OH (US);
Assignee:
UCAR Carbon Technology Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428408 ; 428407 ; 428323 ; 4284111 ;
Abstract
An expandable seal of flexible graphite composed of a prestressed flexible graphite composition of a mixture of flexible graphite and a thermoplastic material having a preselected melting temperature corresponding to the temperature at which the seal is to commence expansion. The flexible graphite composition is prestressed under a compressive force and a temperature such that the thermoplastic material is in a plastic state.
Howard, Ronald. (1992). Flexible graphite expandable seal and method (U.S. Patent No. 5130199). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5130199
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile