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:
Jan. 21, 1986
Filed:
Nov. 13, 1984
Applicant:
Inventor:
Richard A Perkins, Newark, OH (US);
Assignee:
Owens-Corning Fiberglas Corporation, Toledo, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65-2 ; 65-1 ; 65327 ;
Abstract
This invention relates to a method of retarding bushing degradation by glass batch containing iron oxide. The problem is solved by substantially eliminating the passage of current directly through the bushing for heating and employing a conductive heating means to an electrically insulated bushing.
Perkins, Richard. (1986). Protection device for basalt drain bushings (U.S. Patent No. 4565559). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4565559
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile