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. 27, 1993
Filed:
Nov. 22, 1991
Applicant:
Inventor:
Hideyuki Morikawa, Tokyo, JP;
Assignee:
Uniflows Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55158 ; 55160 ; 55189 ;
Abstract
A degassing apparatus in which a tube made of permeable film is laid in a vacuum chamber which is decompressed and controlled by a vacuum pump, and a liquid flowing in the tube is degassed by causing gas to permeate through the wall of the tube. The degassing apparatus comprises a valve for opening the vacuum chamber toward the atmosphere and/or a permeable film which is placed between the vacuum chamber and the atmosphere and/or a valve for opening the vacuum pump to the atmosphere which is disposed between the primary valve and the primary cylinder of the vacuum pump. This degassing apparatus can be very small in size and can operate stably.