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:
Oct. 05, 1999
Filed:
Oct. 06, 1997
Yukio Kanno, Ootone-machi, JP;
Advantest Corp., Tokyo, JP;
Abstract
A pick and place apparatus for picking, transferring and placing an object which is capable of performing picking and placing operations with high stability and high speed without causing a jamming. The pick and place apparatus has a negative pressure source therein and includes a first pressure detector for detecting suction condition in a process for picking up an object by applying a negative pressure from the negative pressure source, a second pressure detector for detecting suction-release condition in a process for placing the object on a predetermined position by releasing the negative pressure, and a controller for controlling an overall operation of the pick and place apparatus to proceed to the next procedure upon receiving a suction detection signal from the first pressure detector or a suction-release detection signal from the second pressure detector.