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:
Nov. 08, 1994
Filed:
Apr. 29, 1993
Applicant:
Inventor:
Jon A Ylvisaker, Zumbro Falls, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 38 ;
Abstract
The present invention is directed to a novel apparatus for measuring the transmission or permeation of gases, flavors, aromas and volatile substances through films and membranes. The instrument of the present invention also provides the capability of high rate testing in order to allow the expedient analysis of multiple film samples within a reasonable amount of time. This invention also provides an instrument and method for extremely high sampling rate of permeant gas with little or no background noise, whereby detection sensitivity is greatly enhanced relative to conventional testing instruments.