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:
Apr. 04, 1989
Filed:
Jul. 20, 1987
Shunji Tanaka, Hiratsuka, JP;
Japan Pionics, Ltd., Tokyo, JP;
Abstract
A self-contained closed-circuit oxygen-generating breathing appratus is provided with a partition wall disposed in such a manner as to oppose at least the lower portion of the inner surface of a breathing bag. The partition wall partitions the central portion and peripheral portion of the interior of the breathing bag along the inner surface of the breathing bag, and the space or gap between the partition wall and the inner surface of the breathing bag acts as a passage for oxygen-enriched gas discharged from the outlet of a canister of an oxygen-generating agent into the interior of the breathing bag. The oxygen-enriched gas can flow through the passage while kept in good contact with the inner surface of the breathing bag, and thus can be cooled to a temperature suitable for inhalation by the user.