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:
Feb. 24, 1998
Filed:
Dec. 24, 1996
Kazuo Kometani, Toyota, JP;
Toshiaki Nakayama, Nishikamo-gun, JP;
Satoshi Inukai, Chita-gun, JP;
Takanari Takagaki, Nagoya, JP;
Hideo Kamo, Chiryu, JP;
Minoru Honda, Kariya, JP;
Denso Corporation, Kariya, JP;
Toyoda Boshoku Corporation, Kariya, JP;
Abstract
A filter element made of nonwoven filter fabric includes a plurality of pleated portions and a flange portion formed integrally with the filter portion. The flange portion is formed by a pair of press-forming dies to have a thin and compressed connecting portion formed along the outer periphery of the filter portion, a thick and uncompressed seal portion formed along the outer periphery of the connecting portion and a thin and compressed protecting portion formed along the outer periphery of the seal portion.