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:
Jun. 11, 2013
Filed:
Dec. 10, 2010
Yutaka Yoshida, Gunma, JP;
Kazuo Kobayashi, Gumma, JP;
Tsuyoshi Toshida, Gunma, JP;
Yukio Uehara, Gunma, JP;
Yasuhiro Terakubo, Gunma, JP;
Hirotsugu Saitou, Gunma, JP;
Yutaka Yoshida, Gunma, JP;
Kazuo Kobayashi, Gumma, JP;
Tsuyoshi Toshida, Gunma, JP;
Yukio Uehara, Gunma, JP;
Yasuhiro Terakubo, Gunma, JP;
Hirotsugu Saitou, Gunma, JP;
Okamoto Machine Tool Works, Ltd., Annaka, JP;
Abstract
A compound chamfering device that manufactures prism-shaped ingot blocks of excellent surface smoothness is disclosed. The four-corner round surfaces and the four sides of a prism-shaped ingot obtained by using a pair of rotary blades of a slicer to perform four-side peeloff of a cylindrical ingot block are chamfered by rough grinding with a pair of cup wheel type rough grinding grindstones. A pair of cup wheel type finishing grinding grindstones are used to chamfering by finishing grinding the four-corner round surfaces and the four sides of the block.