Dispensing – Automatic control – Motor control
Patent
1989-08-24
1990-05-01
Shaver, Kevin P.
Dispensing
Automatic control
Motor control
222639, 222319, 222333, 222409, B67D 526
Patent
active
049211331
ABSTRACT:
A pump/dispenser, ratioing/mixer dispenser apparatus and a method and apparatus for precision vacuum degassed dispensing of work liquids are presented. The pump/dispenser is a positive displacement high precision piston/cylinder constant flush type with piston smaller than chamber. The piston is advanced along its stroke in tiny repeatable adjustably programmable steps, the infinitely adjustable precision ratioing programmable mixing being provided when two such pumps are used. The vacuum degassed work liquids dispensing system features the creation and maintenance of a positive absolute pressure on the work liquid(s) when exiting the degassing chamber(s) to the dispensing outlet(s) whether moved along the flow path through the precision dispensing pump(s) or other types of pump(s). Available softwear and adjustable programmable precision hardwear of the system may be provided by a widely available personal computer. Further degassing is provided by dispensing in a vacuum.
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Robotics, Inc., Sales Literature published at least as early as Mar. 3, 1987.
Huson Gregory L.
Minnesota Mining and Manufacturing Company
Shaver Kevin P.
Silver Robert D.
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