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:
Jul. 23, 1991
Filed:
Jan. 04, 1990
Nobuyoshi Kaiga, Nakano, JP;
Osamu Takase, Hachioji, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An ozone generator includes a feed gas chamber for receiving a feed gas, an ozone gas chamber for receiving a produced ozone gas, a tubular electrode for connecting the two chambers, a discharge tube inserted in the tubular electrode, and a power source unit for applying a voltage having a frequency higher than a frequency of commercial power between a metal film and the tubular electrode to generate a discharge having a frequency higher than the frequency of commercial power. The discharge tube is constituted by a glass tube and the metal film coated on the inner surface of the glass tube. The metal film is made of stainless steel in order to improve an ozone resistance and a nitric acid resistance and is formed to have a thickness of 2,0000 .ANG. to 5,000 .ANG. in order to prevent generation of sparks and to enhance a thermal shock resistance.