B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/2, 117/25, 32
B05B 7/16 (2006.01) B05B 12/08 (2006.01) B05C 11/10 (2006.01) B29B 7/72 (2006.01) C08J 9/30 (2006.01) G05D 7/00 (2006.01) G05D 11/13 (2006.01)
Patent
CA 2027384
A foam material dispensing system is provided with a control which measures the amount of high viscosity liquid material delivered to a mixer, determines the amount of pressurized gas required to be injected into the mixer in order to produce a foamable material with a desired gas concentration, measures the amount of gas actually delivered to the mixer, and generates a cumulative error signal representing the difference between the required amount of gas and the gas actually delivered. A control signal is generated to regulate the flow of gas to the mixer in relation to the magnitude of the error signal. A digital flow meter generates a pulse for each incremental amount of liquid material delivered to the mixer during an interval of time. During each successive interval, the pulses are counted and the count is multiplied by a preset gas-to-material ratio, from which the measured gas flow is subtracted and the difference added to the cumulative error term. The error term is combined with a term proportional to the amount of liquid material delivered over a predetermined number of successive time intervals to produce the control signal.
Leidy Jeanne M.
Rucki William M.
Corporation Nordson
Macrae & Co.
LandOfFree
Method and apparatus for controlling the gas content of foam... 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 and apparatus for controlling the gas content of foam..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling the gas content of foam... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1829739