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:
Sep. 19, 1995
Filed:
Jun. 14, 1994
Applicant:
Inventor:
John J Toben, Cedar Rapids, IA (US);
Assignee:
Met-Coil Systems Corporation, Cedar Rapids, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138109 ; 138155 ; 138D / ; 285424 ;
Abstract
A cornerless slip-on flange system for duct connections. The system utilizes flange pieces to form a frame at the end of a duct section without the use of connectors at the corners of the flanges, the frames of two sections being used to join the two ducts sections together. The flange pieces each have a male end and a female end with the male end of one flange piece being inserted into the female end of the adjacent flange piece at each corner to form the frame. The frames can then be installed on the ends of the ducts to be joined and fastened together by inserting suitable fasteners through preformed openings in the flange pieces.