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. 31, 1984
Filed:
Oct. 19, 1981
Applicant:
Inventor:
Milton Hinden, Massapequa, NY (US);
Assignee:
Duro Dyne Corporation, Farmingdale, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 98 ; 373137 ;
Abstract
The present invention is directed to an improved resistance welding pin especially adapted for fastening of batts of insulating material to metallic air conduits, such as the ducts of air conditioning and heating systems. The pin is characterized by a novel corrugated shank portion extending between the head of the pin and the sharpened tip which functions, inter alia, to dissipate the heat generated in the shank during welding, with a plurality of attendant advantages.