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:
Jul. 23, 2002
Filed:
Apr. 27, 2001
Applicant:
Inventor:
Michael B. Schell, Santa Barbara, CA (US);
Assignee:
Edwards Systems Technology, Inc., Cheshire, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 1/710 ;
U.S. Cl.
CPC ...
G08B 1/710 ;
Abstract
A method for determining the presence of an occupant in an enclosure space, particularly a trunk compartment, based on a rate of change of carbon dioxide concentration in the space/compartment, is disclosed. The primary sources taken into consideration are customary and non-customary leakages of carbon dioxide into the space to be measured. A warning/control logic is preferably configured to identify a rate of change of carbon dioxide that is likely when one or more humans occupy the space/compartment.