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. 11, 1981
Filed:
Jan. 02, 1980
Applicant:
Inventor:
Kenji Nakajima, Nagayoshi-deto, Hirano-ku, Osaka-shi, Osaka-fu, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285405 ; 285424 ;
Abstract
A flange for coupling one duct with another. The flange has four flange pieces, each of which has two walls connected so as to form an L-shaped section. One of the two walls has at one end thereof an extension. At the other end of the flange piece, the other of the two walls is provided with a hook.