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:
Jun. 20, 1989
Filed:
May. 12, 1988
Takao Takeda, Chigasaki, JP;
Hitoshi Yamazaki, Yokohama, JP;
Yoshiteru Taniguchi, Kamakura, JP;
Norihiko Tanaka, Kawasaki, JP;
Hiroshi Ito, Tokyo, JP;
Minoru Uchida, Yokosuka, JP;
Jun Imai, Hiratsuka, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A process is disclosed which prepares a low pressure mercury vapor discharge lamp having a bulb and an end plate connected to the bottom of the bulb. The steps involve the application of an adhesive on one surface of the end plate, and the subsequent insertion of an exhaust tube into the end plate in such a way that an enlarged diameter portion of the exhust tube has an adhesive formed on this portion. As a result of the location and the structure of the steps, it is possible to provide a single step method of heating which functions to perform the essential bonding of all parts.