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:
Dec. 01, 1992
Filed:
Mar. 04, 1991
Applicant:
Inventors:
Kazutoshi Ikeda, Okazaki, JP;
Tetsumi Ichioka, Mie, JP;
Tetsuya Miyano, Inazawa, JP;
Yoshihiro Menjo, Chiryu, JP;
Assignee:
Toyoda Gosei Co. Ltd., Nishikasugai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60H / ;
U.S. Cl.
CPC ...
454164 ; 1375121 ; 454904 ;
Abstract
A ventilation system for ventilating the inside of a compartment such as the compartment of an automobile or the room of a building. The ventilation system prevents the contaminated outside air from flowing back into the inside of the compartment from an inside air outlet by magnetically attracting a mouth frame, which is composed of the inside air outlet and a peripheral edge, and a one-way valve for opening the inside air outlet only at the time of releasing the inside air of the compartment to the outside.