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:
May. 24, 1994
Filed:
Oct. 07, 1991
Applicant:
Inventors:
Masuji Sakaya, Narashino, JP;
Ryuichi Okiai, Yotsukaido, JP;
Masataka Mochizuki, Nagareyama, JP;
Kouichi Mashiko, Tokyo, JP;
Assignee:
Fujikura Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D / ;
U.S. Cl.
CPC ...
16510426 ; 165181 ; 165184 ; 29890032 ;
Abstract
A wick layer is attached and fixed to one surface of a metal tape without forming a gap with the metal surface, and thereafter, the tape is rolled to form a pipe, such that the surface having the wick layer serves as an inner surface of the pipe. Trapezoid-shaped projecting surface portions are formed on at least an outer surface portion of the pipe, and project in a predetermined direction.