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:
Jan. 03, 1995
Filed:
Jul. 29, 1993
Jean Dauvergne, Fosses, FR;
Valeo Thermique Habitacle, Le Mesnil-Saint-Denis, FR;
Abstract
Air to be introduced into the cabin of a motor vehicle passes over a measuring device, in which parameters such as temperature, humidity and pollution are measured. The measuring device comprises a housing having an air inlet, which is supplied with a fraction of the air stream, and an air outlet for evacuating this fraction. The housing has an internal chamber which communicates with both the air inlet and the air outlet, and air circulating means such as a pump are provided for setting up a differential pressure between the inlet and outlet so that the fraction of the air stream to be measured flows through the chamber in the housing. The sensor or sensors are arranged in this chamber, so that they are always ventilated by the air passing through the latter.