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Class 198/639 - Condition responsive control


Subclass of Class 198 - Conveyors: power-driven
Definition: Apparatus having (1) means to sense a condition surrounding
No. of patents: 3
Last issue date: 06/26/2001


NumberTitleIssue Date
6250472Paper sorting system
The present invention includes devices and methods for handling and sorting paper. Devices for accelerating and spreading paper from a paper input to a sensor are disclosed. Operably thin layers of paper are passed through a sensor at cost effective feed ...
06/26/2001
4940131Material handling system and control valve thereof
A rotary valve for use in a particulate material handling system having an elevated device for holding a supply of the particulate material, a lower material receiving device and a remote control device. The rotary valve includes a housing having a rotor ...
07/10/1990
4516674Method and apparatus for conveying and metering solid material
A solid material pump or conveyance apparatus and method including a pump housing an inlet and an outlet with a passageway between them. The passageway is formed and defined by a friction drive wall which is movable relative the pump housing towards the o...
05/14/1985
 
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