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:
Aug. 02, 1977
Filed:
Oct. 01, 1975
Applicant:
Inventor:
Sanborn F Philp, Pittsfield, MA (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336 60 ; 336 94 ; 361 35 ;
Abstract
An electrical coil comprised of sheet conductor is wound with dry film insulation between turns. The entire structure is maintained in a compressed gas environment, rendering harmless any small voids that may exist in the insulation. Cooling ducts of thin, cylindrical annuli are wound into the coil at intervals, and are completely sealed except for two places where they connect with inlet and outlet pipes.
Philp, Sanborn. (1977). Sheet-wound, high-voltage coils (U.S. Patent No. 4039990). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4039990
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile