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. 30, 1980
Filed:
Mar. 19, 1975
Etsutaro Miyata, Yamatokoriyama, JP;
Toshiya Tonomura, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A length of a tubing is helically wound with a fin made of a heat-radiating strip and which is corrugated to provide a series of transverse crimps. A base is provided by flattening a portion of the crimps with the use of pressure rollers at one edge of the strip when the section of the fin is 'L' shaped, or at the middle of the strip when the section of the fin is 'U' shaped in order to cling closely to the tubing. The fin is bent at the boundary area between the flattened portion and the crimped portion when the fin is helically wound around the tubing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile