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:
Mar. 24, 2020
Filed:
Nov. 17, 2017
Applicants:
Tpr Co., Ltd., Tokyo, JP;
Tpr Industry Co., Ltd., Sagae-shi, Yamagata, JP;
Inventors:
Akira Sayama, Sagae, JP;
Koichi Hatakeyama, Sagae, JP;
Akira Sato, Sagae, JP;
Kazuki Seino, Sagae, JP;
Katsuya Okuda, Sagae, JP;
Tomoki Takiguchi, Sagae, JP;
Assignees:
TPR CO., LTD., Tokyo, JP;
TPR INDUSTRY CO., LTD., Sagae-shi, Yamagata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 19/08 (2006.01); F02F 1/00 (2006.01); B22D 19/00 (2006.01); F16D 65/10 (2006.01); F16J 10/04 (2006.01);
U.S. Cl.
CPC ...
B22D 19/0009 (2013.01); B22D 19/08 (2013.01); F02F 1/004 (2013.01); F02F 2200/06 (2013.01); F16D 65/10 (2013.01); F16J 10/04 (2013.01);
Abstract
Provided is a cast-iron cylindrical member having projections (P) formed integrally with a casted surface (an outer peripheral surface), and a composite structure including the cast-iron cylindrical member and an outer periphery-side member. The cast-iron cylindrical member satisfies: