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:
Mar. 05, 2002
Filed:
Jun. 17, 1999
Applicant:
Inventor:
John F. Foss, Okemos, MI (US);
Assignee:
Michigan State University, Board of Trustees Operating Michigan State University, East Lansing, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60H 1/26 ;
U.S. Cl.
CPC ...
B60H 1/26 ;
Abstract
An apparatus and method for measuring the infiltration flow rate into the passenger compartment of a moving motor vehicle includes a controlled source of a distinct, miscible gas such as carbon dioxide (CO ) a plurality of sensors disposed about the compartment to continuously monitor the concentration of such miscible gas over time and a multi-channel data storage device which discretely stores the concentration data from such plurality of sensors for later analysis and computation. The decay rate of the miscible gas concentration is a function of the infiltration/exfiltration rate.