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. 12, 1989
Filed:
Sep. 29, 1988
Kyoichi Deki, Kakogawa, JP;
Shinji Sugioka, Kakogawa, JP;
Masaki Yoshioka, Izumi, JP;
Hiroshige Hata, Himeji, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A metal vapor laser device which prevents a possible discharge between an electrode and a pressure detector thereof and can generate a laser beam in a stabilized condition. The metal vapor laser device comprises a metal vapor laser tube, a carrier gas supplier, and a pressure detector. The carrier gas supplier communicates with a discharge spacing within the laser tube by way of a communicating hole formed at an end portion thereof. The pressure detector includes a tube defining a pressure detecting chamber therein and communicating with the inside of the carrier gas supplier, and an energizable detecting element provided in the inside of the pressure detecting chamber. A discharge preventing thin tube is provided in the inside of the carrier gas supplier and has an end connected to the end portion of the carrier gas supplier in such a manner as to surround the communicating hole of the carrier gas supplier. The discharge preventing thin tube extends toward the other end portion of the carrier gas supplier farther than a connecting portion of the carrier gas supplier to the pressure detector, and the other end thereof is opened within the carrier gas supplier.