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:
Sep. 28, 1999
Filed:
Sep. 04, 1996
Applicant:
Inventors:
Masamichi Okada, Toyota, JP;
Tatsuhiko Sawamura, Tokyo, JP;
Norio Hayashi, Yokkaichi, JP;
Takayuki Ito, Hiratsuka, JP;
Assignees:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
164132 ; 164113 ; 164138 ; 164319 ; 164320 ; 164369 ; 249144 ; 249111 ; 249175 ;
Abstract
A casting method and apparatus using a resin core wherein a portion of a wall of the resin core that receives a greater heat and/or load than other portions of the wall of the resin core, is increased in thickness. As a result, even if the resin core receives more heat and/or load in places, a local deformation or breakage of the resin core is effectively prevented.