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:
Mar. 04, 2014
Filed:
Feb. 20, 2012
Applicant:
Frank G. Mcnulty, Rochester Hills, MI (US);
Inventor:
Frank G. McNulty, Rochester Hills, MI (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 31/00 (2006.01); B21D 53/02 (2006.01); B21D 53/04 (2006.01); B21K 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Multi-port tube structures are fabricated in a process in which a web of metallic material has a pattern of features formed therein by a rotary die forming process carried out on a continuous basis. The web of material is cut into strips which are folded so as to define a closed tubular structure having internal features defining longitudinal fluid flow channels.