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:
May. 08, 2001
Filed:
Feb. 11, 2000
John Didomenico, Tucson, AZ (US);
Craig S. Rendahl, Tucson, AZ (US);
Envirotest Systems Corporation, East Granby, CT (US);
Abstract
A system and method for detecting running loss emissions is provided. A remote sensing device is used to detect vehicular exhaust emissions. The detected emissions are analyzed to determine a characteristic profile. The characteristic profile is processed to determine whether the profile is suspect or invalid. Invalid and suspect profiles are further analyzed to determine if running losses (e.g., leaky gas cap vapors, blow by emissions, etc.) are present. Profiles labeled as containing running losses may be further processed to generate statistical information, deliver notification to vehicle owners, or other actions.