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:
Aug. 11, 1987
Filed:
Sep. 05, 1985
Toshiaki Tanaka, Toyota, JP;
Hitoshi Niwa, Kariya, JP;
Hirokatsu Mukai, Kariya, JP;
Naoto Miwa, Kariya, JP;
Akio Nara, Kariya, JP;
Etsuji Nomura, Kariya, JP;
Makoto Hori, Kariya, JP;
Koichi Hasegawa, Toyota, JP;
Hiroshi Noguchi, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Nippondenso Kabushiki Kaisha, Kariya, JP;
Abstract
An air heater for heating intake air for an internal combustion engine only in cold start or further warming up operation, having a frame which defines an opening for passing air therethrough, and at least one heater element in the shape of a perforated plate such as a lattice or honeycomb plate supported by the frame so as to traverse only a part of the opening area of the air passage opening, while leaving a substantial part of the opening area free as untraversed by the heater element.