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:
Jan. 25, 2000
Filed:
Mar. 31, 1997
Manabu Kurotobi, Takarazuka, JP;
Mutsuo Uchida, Osaka, JP;
Takahiro Tanaka, Izumiotsu, JP;
Tsuneo Suzuki, Yachiyo, JP;
Yutaro Takahashi, Amagasaki, JP;
Kubota Corporation, Osaka, JP;
Abstract
A method of forming a ridge around the outer circumference of a spigot formed at an end of a pipe. A ring having a certain wall thickness in its radial direction and formed with a peripheral groove on its outer circumference is placed around the outer circumference of the spigot. Then molten metal is poured into the peripheral groove, so that the bottom of the peripheral groove and the surface of the spigot are melted, thus joining the ring and spigot together.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile