B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
B67D 7/74 (2010.01) A47L 15/44 (2006.01) B01F 3/08 (2006.01) B01F 15/02 (2006.01) B01F 15/04 (2006.01) D06F 39/02 (2006.01) F16K 37/00 (2006.01) G01B 7/30 (2006.01)
Patent
CA 2211051
A dispensing system for dispensing chemical products to a plurality of utilization points utilizes a multi-port valve to selectively deliver use dilutions from a mixing apparatus to selected utilization points. The multi-port valve utilizes a position sensor to provide positive proof-of-delivery by detecting the angular position of a rotor relative to a stator in the valve. The position sensor includes opposing annular arrangements of detectable elements and proximity detectors which rotate relative to one another about a common axis in response to rotation of the rotor such that detectable elements are oriented in proximity to a unique combination of proximity detectors at each of a plurality of predetermined angular positions. As a result, unique codes are output from the proximity detectors to positively identify positioning of the rotor at the predetermined angular positions.
Brady Daniel F.
Hennemann Thomas L.
Ecolab Inc.
Robic
LandOfFree
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