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. 29, 2003
Filed:
Jan. 31, 2002
Hideo Ohkuma, Shiga-ken, JP;
Satoshi Maruyama, Shiga-ken, JP;
Kiyoshi Tomiki, Oumihachiman, JP;
Makoto Fujikawa, Oumihachiman, JP;
Tomohito Johnai, Moriyama, JP;
Yutaka Kunii, Ashikaga, JP;
Kazuhiko Toyoda, Ashikaga, JP;
Other;
Abstract
An abrading machine and abrading method are provided which permit a workpiece to be abraded without damage even in the case of heavy stock removal. A work holding member for mechanical abrasion includes a first holding member with a hole for receiving a workpiece and which transmits external drive force to the workpiece, and a second holding member placed on the first holding member and also having a hole for receiving the workpiece. The second holding member is removed after a predetermined volume of stock is abraded away; the workpiece is then abraded to a target thickness while being held by the first holding member alone. Thicknesses t and t of the first and second holding members are given by T >t +t and (½)T ≦t , where T and T represent the workpiece thickness before and after abrasion, respectively.