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:
Dec. 22, 1987
Filed:
May. 30, 1986
Applicant:
Inventor:
Richard Bennett, Long Beach, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72410 ; 72412 ; 292435 ; 81426 ;
Abstract
A tool is especialy adapted for use in fastening together sections of ducts used to conduit air for heating and air conditioning. The tool is comprised of a pair of tongs having opposing handles and jaws and hinged to rotate relative to each other about a transverse axis. The jaws are specially formed to facilitate insertion of angle shaped corner fasteners into the transverse, marginal flanges which project from the ends of conventional air conditioning duct sections and to bend over and collapse the peripheral lips on the marginal flanges of the duct sections back onto the legs of the reinforcement angles.