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. 03, 1998
Filed:
Apr. 04, 1997
Applicant:
Inventor:
Robert C Henderson, Avondale, PA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 210656 ; 95 87 ; 96102 ;
Abstract
An oven for a chromatograph is shown in which an oven vent is located with respect to an oven fan assembly and an oven vent assembly. In certain operating conditions, the oven fan assembly and the oven vent assembly are controlled by a computer to cause an exchange of cavity air and ambient air to decrease the level of concentration of combustible gases present in the oven.