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:
Jun. 26, 2007

Filed:

Sep. 27, 2001
Applicants:

Masatoshi Hotta, Kanagawa, JP;

Masakazu Oka, Kanagawa, JP;

Yoshio Furuse, Kanagawa, JP;

Hitoshi Atobe, Kanagawa, JP;

Shigehiro Chaen, Kanagawa, JP;

Inventors:

Masatoshi Hotta, Kanagawa, JP;

Masakazu Oka, Kanagawa, JP;

Yoshio Furuse, Kanagawa, JP;

Hitoshi Atobe, Kanagawa, JP;

Shigehiro Chaen, Kanagawa, JP;

Assignee:

Showa Denko K.K., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 16/00 (2006.01); B01D 46/00 (2006.01); B01J 8/00 (2006.01); C01B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a process and an apparatus for treating a waste anesthetic gas containing a volatile anesthetic and nitrous oxide discharged from an operating room by introducing the gas into an adsorbing cylinder filled with an adsorbent, where the volatile anesthetic contained in the waste anesthetic gas is adsorbed and thereby removed, and successively introducing the gas into a catalyst layer filled with a nitrous oxide decomposition catalyst, where nitrous oxide is decomposed into nitrogen and oxygen. By using the process and the apparatus for treating a waste anesthetic gas of the present invention, a volatile anesthetic having a possibility of destroying the ozone layer or nitrous oxide as a global warming gas can be made harmless while preventing the release into atmosphere.


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