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. 01, 1991
Filed:
Oct. 26, 1989
Applicant:
Inventor:
Arthur Evans, Sherburne, NY (US);
Assignee:
Carrier Corporation, Syracuse, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21F / ; B21F / ;
U.S. Cl.
CPC ...
72134 ; 72137 ; 140 715 ;
Abstract
A method and apparatus for forming an electric resistance heating coil of desired resistance that involves forming a straight end or pigtail at the ends of the coil whereby electrical connectors can be connected to the aligned pigtails and end insulators can separate the electrical connectors.