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. 03, 1976
Filed:
Nov. 06, 1974
Applicant:
Inventor:
Alain Edouard Plegat, Asnieres, FR;
Assignee:
Societe Anonyme des Usines Chausson, Asnieres, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165178 ; 165153 ; 291574 ;
Abstract
Tube ends are engaged in passage openings of tube plates and protrude above collars surrounding said passage openings. The larger sides of the tube ends are folded back and rolled about said collars. Part of the tube walls under said passage openings is enlarged.