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:
May. 16, 1989
Filed:
Aug. 25, 1987
Toshihiro Kajiura, Osaka, JP;
Norio Oita, Kobe, JP;
Junnosuke Abe, Osaka, JP;
Seiji Sugiyama, Kadoma, JP;
Kanebo Ltd., Tokyo, JP;
Abstract
A granule inspection apparatus comprising a pair of transparent rotating body installed in parallel at prescribed spacing, a granule falling passage being formed between mutually opposing surfaces of the rotating bodies, granules are fallen through this passage, falling granules are lighted by the reflection light source arranged on the side of one transparent rotating body and by the transmission light source arranged on the side of the other transparent rotating body, an image sensor is picked up the images of the lighted granules, presence of defectives is detected from image signals, a selector is driven to select non-defectives from defectives.