1
William C Grimmell, Jim M Adams, Gilbert C Kaetzel, Robert P Fazzini, Edward F DeZabala: Method and apparatus for color recognition and defect detection of objects such as capsules. Hoffmann La Roche, Jon S Saxe, Bernard S Leon, Mark L Hopkins, March 13, 1979: US04143770 (37 worldwide citation)

Method and apparatus for high-speed automatic inspection and processing of large numbers of solid discrete particular objects such as multicolored capsule dose forms in regard to color and/or defect detection, in which virtually all unacceptable material is isolated and an accurate running and total ...


2
William C Grimmell, Gilbert C Kaetzel: Multichannel fiber optic light guide for capsule inspection. Hoffmann La Roche, Jon S Saxe, Bernard S Leon, George W Johnston, February 1, 1983: US04371783 (8 worldwide citation)

According to the broader aspects of the invention, there is provided an improved arrangement which reduces the effort required in aligning optical sensors in optical heads under which capsules are transported and which decreases the relative time variances among certain signals utilized in the evalu ...