Apparatus and method for low volume dispensing

Dispensing – Automatic control – Motor control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

222318, B67D 5377

Patent

active

044731736

ABSTRACT:
The apparatus includes a plurality of colorant reservoirs passing colorants and other ingredients through feed lines to a peristaltic pump which pumps the colorants into the input of three-way valves which are each movable between a dispensing mode and a recirculating made. In the recirculating mode the colorants pumped by the peristaltic pump will travel through the three-way valves and through return lines to the reservoirs from which the material originally emanated. If the three-way valve is in the dispensing mode the colorant will be discharged into a sample container for receiving the colorant mix. The peristaltic pump is driven by a drive motor such as a variable drive DC motor. The system is controlled by a system controller which receives input from a device such as a microprocessor which evaluates the required volume or weight of each particular colorant necessary to make a specific colorant mix. In order to carefully dispense such low volume of fluids the output curve of the peristaltic pump is divided into known segments and evaluated by the microprocessor input device and a segment of the output curve is utilized which positively displaces a known volume and is very repeatable. A position sensing device located adjacent to the pump emits a signal to the control whenever one of the rollers passes thereby. A counting device is positioned adjacent to the drive shaft of the drive motor and emits counts during rotation of the shaft.

REFERENCES:
patent: 315667 (1885-04-01), Serdinko
patent: 2913992 (1959-11-01), Blue et al.
patent: 3172367 (1965-03-01), Kling
patent: 3340817 (1967-09-01), Kemnitz
patent: 3403631 (1968-10-01), Tangeman
patent: 3502034 (1970-03-01), Pickup
patent: 3723030 (1973-03-01), Gelfand
patent: 3737251 (1973-06-01), Berman et al.
patent: 3739717 (1973-06-01), Brown et al.
patent: 3791777 (1974-02-01), Papoff et al.
patent: 3832096 (1974-08-01), Gelfand
patent: 4217993 (1980-08-01), Jess et al.
patent: 4289459 (1981-09-01), Neeley et al.
patent: 4331262 (1982-05-01), Snyder et al.
"Wiz" Smartpump Dispenser and Diluter (Article).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for low volume dispensing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for low volume dispensing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for low volume dispensing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1766820

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.