Material or article handling – Device for emptying portable receptacle – Nongravity type
Patent
1996-11-18
1999-05-25
Keenan, James W.
Material or article handling
Device for emptying portable receptacle
Nongravity type
414937, 414811, B65G 4907
Patent
active
059064692
ABSTRACT:
A substrate detecting apparatus includes: a light sensor unit having a light-emission element and a light-receiving element arranged to face each other across the cassette, and a vertical driving device for moving at least one of the light sensor unit and the cassette relative to each other in a vertical direction a substrate position detecter is also provided for detecting a vertical positional range of each substrate held in the cassette, based on a wave form of an output signal generated by the light sensor unit as the at least one of the light sensor unit and the cassette is vertically moving relative to each other. A substrate conveying apparatus includes a clearance measurement device for measuring a vertical clearance between a pair of substrates held in the cassette, and an arm driving device for inserting the conveyance arm between the pair of substrates while lifting up the conveyance arm along a slant locus when the vertical clearance is less than a predetermined critical value.
REFERENCES:
patent: 4770590 (1988-09-01), Hugues et al.
patent: 4803373 (1989-02-01), Imamura et al.
patent: 5044752 (1991-09-01), Thurfjell et al.
patent: 5239182 (1993-08-01), Tateyama et al.
patent: 5277539 (1994-01-01), Matsui et al.
patent: 5409348 (1995-04-01), Suzuki
patent: 5540098 (1996-07-01), Ohsawa
patent: 5563798 (1996-10-01), Berken et al.
patent: 5645391 (1997-07-01), Ohsawa et al.
Fukutomi Yoshiteru
Itaba Masayuki
Koyama Yasufumi
Oka Yoshiji
Yuge Toshiya
Dainippon Screen Mfg. Co,. Ltd.
Keenan James W.
LandOfFree
Apparatus and method for detecting and conveying substrates in c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for detecting and conveying substrates in c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting and conveying substrates in c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-398240