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Class Information
Number: 406/27
Name: Conveyors: fluid current > With means to control conveying fluid or movement of load in response to sensed condition > Control of conveying fluid > Responsive to movement of gate to initiate or terminate fluid current > To closure of intake gate to initiate fluid current
Description: Subject matter wherein the sensor detects movement of a gate at the inlet* to its closed position and activates the controller to start the conveying fluid current.

Patents under this class:

Patent Number Title Of Patent Date Issued
7591613 Method and apparatus for transporting a substrate using non-newtonian fluid Sep. 22, 2009
7416370 Method and apparatus for transporting a substrate using non-Newtonian fluid Aug. 26, 2008
6715638 Pneumatic mail delivery system Apr. 6, 2004
6474912 Pneumatic mail delivery system Nov. 5, 2002
6447216 Fluid pumping system for particulate material Sep. 10, 2002
4697962 Control system for a continuous process venturi accelerated pneumatic pump Oct. 6, 1987
4462721 Visual customer terminal construction for pneumatic tube banking system Jul. 31, 1984
4352603 Pneumatic tube system teller terminal construction Oct. 5, 1982
4343574 Pneumatic tube system customer terminal construction Aug. 10, 1982
4049321 Waste collection systems Sep. 20, 1977
3941426 Apparatus for handling flowable material Mar. 2, 1976

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