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:
Aug. 14, 1984
Filed:
Jul. 12, 1982
Applicant:
Inventor:
Peter Pospisil, Uberlingen, DE;
Assignee:
Bodenseewerk Perkin-Elmer & Co., GmbH, Uberlingen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
7386421 ; 7386423 ; 7386481 ;
Abstract
According to the head space method, samples are supplied from sealed sample vessels by means of a needle. A change-over valve, an optionally higher or reduced carrier gas pressure is applied to a carrier gas conduit comprising a shut-off valve and terminating between the needle and entrance of the separating column. This enables a defined sample feeding and analysis by an optimum carrier gas pressure even with volatile samples.