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:
Nov. 15, 1994
Filed:
Nov. 13, 1992
Applicant:
Inventors:
Norimasa Baba, Nagoya, JP;
Ken Yamamoto, Obu, JP;
Michiyasu Yamamoto, Chiryu, JP;
Ryouichi Sanada, Obu, JP;
Eiichi Torigoe, Kariya, JP;
Mitsugu Nakamura, Kariya, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165153 ; 165173 ; 165178 ; 285188 ; 285222 ;
Abstract
An inner half cylinder and an outer half cylinder are brazed to each other to form a cylindrical header tank. Both ends of tubes are connected to the inner half cylinder. An opening of the outer half cylinder is communicated with an opening of a joint pipe. A tongue portion which is provided on the periphery of the opening of the outer half cylinder is inserted and curled in the opening of the joint pipe so as to fix the joint pipe on the outer half cylinder firmly.