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:
Apr. 25, 2006
Filed:
Oct. 19, 2004
Seiji Irie, Tochigi-ken, JP;
Kenji Yageta, Tochigi-ken, JP;
Masao Suzuki, Yokosuka, JP;
Toshiyuki Nishida, Matsuzaka, JP;
Seiji Irie, Tochigi-ken, JP;
Kenji Yageta, Tochigi-ken, JP;
Masao Suzuki, Yokosuka, JP;
Toshiyuki Nishida, Matsuzaka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Aichi Machine Industry Co., Ltd., Nagoya, JP;
Abstract
A partition plate (cast-in object plate member) is preliminarily set in an intake-port forming sand core, by which an intake port of a cylinder head is molded, and cast in during cast molding of the cylinder head for partitioning the intake port. The partition plate has both distal ends, spaced apart in a longitudinal direction, one of which corresponds to an intake-side distal end at which an acute-angled end face is formed to induce core breaking in a port core at an area closer to the intake-side distal end.