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. 24, 1981
Filed:
Mar. 31, 1980
Applicant:
Inventor:
Yoshihiro Takahashi, San Jose, CA (US);
Assignee:
Envirotech Corporation, Menlo Park, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 88 ; 422 94 ; 2323 / ; 73 23 ;
Abstract
A system and process for determining the concentration of nonmethane organic chemicals in a gaseous sample includes a separation system to receive the gaseous sample. In the separation system nonmethane organic chemicals including ethylene and ethane are reversibly retained on a packing material while methane and inert gases pass through the separation system and are vented. Thereafter a carrier gas is directed through the separation system, the nonmethane organic chemicals are released into the carrier gas, and the carrier gas containing the organic chemicals is conveyed to an analyzer for analysis of the organic chemicals.