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:
Nov. 26, 2002
Filed:
Mar. 16, 2001
Applicant:
Inventors:
Assignee:
Advantest Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 1/904 ;
U.S. Cl.
CPC ...
B23P 1/904 ;
Abstract
A device holding apparatus comprising a base plate; a hollow pad guard provided on the base plate; a pad pin inserted to the pad guard movably in an axis direction and having a through hole; a pad provided at a tip of the pad pin and having a through hole connected to the through hole of the pad pin; and a bellows pad provided on the base plate, having a through hole connected to the through hole of the pad pin and being elastic in the axis direction; for holding by suction a device by the pad by applying a negative pressure to the through hole of the bellows pad, the through hole of the pad pin and the through hole of the pad.