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. 14, 1993
Filed:
Jul. 31, 1992
Applicant:
Inventors:
John R Mitchell, Salt Lake City, UT (US);
Joseph W Carter, Salt Lake City, UT (US);
Donald E Gregonis, Salt Lake City, UT (US);
Assignee:
BOC Health Care, Inc., New Providence, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ; G01N / ;
U.S. Cl.
CPC ...
356301 ; 356246 ;
Abstract
A gas analysis cell having a pressure control system eliminates pressure variations in the gas cell regardless of changes in restriction, gas viscosity and barometric pressure. Since optical alignment through the gas cell is sensitive to gas pressure, maintaining a constant pressure in the gas cell makes the system more stable.