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.

Date of Patent:
Jul. 24, 1990

Filed:

Jan. 26, 1989
Applicant:
Inventors:

Takao Terada, Higashiosaka, JP;

Toshiyuki Kobayashi, Kameoka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; A61M / ; A61M / ;
U.S. Cl.
CPC ...
12820316 ; 12820317 ; 12820326 ; 12820021 ; 239136 ; 239370 ;
Abstract

An improved steam inhaler for producing steam from water and aspirating inhalation liquid having a certain medical efficacy with the steam, comprising: a water supply tank, a first conduit, a first heating chamber, a second conduit, a second heating chamber, and a steam nozzle, along the path the water conveyed. The first and second heating chambers are provided with heating elements, and a one-way valve is provided in the first conduit. Therefore, the water boiled in the first chamber is conducted into the second heating chamber and prevented from returning to the water tank by the one-way valve. The water is completely vaporized in the second heating chamber. Since the water is thus metered from the water tank into the first heating chamber substantially upon demand, the steam inhaler can be activated immediately after the power is turned on, and can be deactivated immediately after the power is turned off. Thereby, the convenience of the steam inhaler is improved, and the waste of the inhalation liquid may be prevented.


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