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:
Mar. 03, 1992
Filed:
Jan. 19, 1990
Toshiharu Matsumiya, Shinnanyo, JP;
Tatsuhiko Kawaoka, Takatsuki, JP;
Kazuo Sakamoto, Shinnanyo, JP;
Hiroshi Ogawara, Ohtsu, JP;
Shozo Shiraishi, Osaka, JP;
Hiroshi Honda, Shinnanyo, JP;
Sekisui Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
A method of connecting plastic tubes by high-frequency heating comprising preparing an electrode block having at least two electrode members each having annular bores aligned with each other, the electrode block including at least one insulator interposed between the electrode members, the insulator having a bore aligned with those of the electrode members, inserting an end portion of one tube into the one electrode member and an end portion of the other tube into another electrode member so that both tube ends keep contact with each other in the bore of the insulator, and applying a high frequency voltage between the electrode members.