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. 16, 1986
Filed:
Jul. 22, 1982
Applicant:
Inventor:
Marsha L Langhorst, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 16 ; 55 30 ; 55 35 ; 55158 ; 55275 ; 55387 ;
Abstract
A device for separating water vapor from a sample of air has been developed. The device utilizes a water permeable membrane to separate the water vapor from an air stream containing other vapors, for example, organic vapors. The device is applicable, for example, in industrial hygiene applications to reduce or change humidity in an air stream prior to collection of organics on a sorbent tube.