1
Edward M Aten, Larry E Parkhurst: Controlled dispensing device. Cushman Darby & Cushman, June 23, 1987: US04674652 (347 worldwide citation)

A controllable dispensing device for use by a drug therapist for the unsupervised administration to a patient of a drug therapy regimen. A field unit is loaded with a plurality of medication containers in a predetermined sequence. Along with the medication, a program of dosing times is stored in an ...


2
Larry E Parkhurst, Edward M Aten: Article dispenser for monitoring dispensing times. Medical Microsystems, Beaton & Swanson, May 2, 1995: US05412372 (146 worldwide citation)

A portable medication dispenser aids and monitors regimen-conforming use of medications provided in standard as-marketed blister packages. A standard blister package and a separate, disposable sensor sheet are simply and easily loaded into a compact housing containing supervisory electronics, visual ...


3
Edward M Aten, Larry E Parkhurst: Multiple cartridge dispensing system. Medical Microsystems, Cushman Darby & Cushman, April 25, 1989: US04823982 (78 worldwide citation)

The invention provides a portable and positionally insensitive dispensing device and system for dispensing several types of articles, packaged on strips and loaded into separate cartridges, from a single device. Dispensing is controlled from more than one cartridge by means of special clutch mechani ...


4
Larry E Parkhurst, Michael R Meadows: Optic sensors. Dieterich Standard Corporation, Kerkam Stowell Kondracki & Clarke, December 23, 1986: US04631401 (6 worldwide citation)

An optic displacement sensor includes first and second optic circuits which optic circuits include bi-directional means for a light supply path to and a light return path from a light reflecting surface means. The first optic circuit is a reference signal circuit, and the second optic circuit is a m ...


5
Larry E Parkhurst, Michael R Meadows: Optic sensor with reference and detecting optic circuits. Dieterich Standard Corporation, Kerkam Stowell Kondracki & Clarke, September 15, 1987: US04694159 (1 worldwide citation)

An optic displacement sensor includes first and second optic circuits which optic circuits include di-directional means for a light supply path to and a light return path from a light reflecting surface means. The first optic circuit is a reference signal circuit, and the second optic circuit is a m ...