Boots – shoes – and leggings
Patent
1987-12-18
1990-03-20
Lall, Parshotam S.
Boots, shoes, and leggings
36457101, 36457104, 417 22, 417 43, 417 53, 417300, F04B 4906, G01F 100
Patent
active
049106821
ABSTRACT:
A peristaltic pump controller provides control of a positive displacement pump as either an uncalibrated or calibrated flowmeter, or a calibrated dispenser. A calibration constant is calculated, after the pump is primed, to determine the amount of volume output produced by an increment of angular rotation of the pump. The constant is determined during a calibration operation where an arbitrary calibration volume is metered. The controller has a low flow and high flow mode where the low flow mode provides a higher resolution for dispensing. The flow mode of operation is determined by the value of the calibration constant and is automatically set when the constant is calculated. DUring a dispensing operation, the controller will meter fluid to within a predetermined amount of the final volume dependent upon the speed of the pump motor and then dribble in the remaining amount of a batch for precision.
REFERENCES:
patent: 3839911 (1974-10-01), Zimmerman et al.
patent: 3854038 (1974-12-01), McKinley
patent: 3965341 (1976-06-01), Honey et al.
patent: 4253156 (1981-02-01), Lisle et al.
patent: 4358821 (1982-11-01), Niemi
patent: 4581946 (1986-04-01), Kanayama
patent: 4715786 (1987-12-01), Wolff et al.
Adams Roman A.
McCauley Porter T.
Stiefel Paul
Takacs Gyoergy J.
Wolff Donald L.
Cole-Parmer Instrument Company
Lall Parshotam S.
Mattson Brian M.
LandOfFree
Method of calibrating and determining the rotational and fluid d does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of calibrating and determining the rotational and fluid d, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of calibrating and determining the rotational and fluid d will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-797189