Claims
- 1. An apparatus for dispensing plural component materials having at least first and second components and a desired ratio between said components, said apparatus comprising:
first and second reciprocating pumps, each of said pumps having a stroke and being connected to one of said components; first and second reciprocating drivers, each driver being connected to drive one of said pumps and forming a driver-pump set; a position sensor attached to each said driver-pump set, each said position sensor outputting increments of resolution corresponding to a fixed volume being pumped by the driver-pump set to which it is connected; and a controller attached to said drivers and said position sensors to alternately move one of said driver-pump sets one said increment and the other of said driver-pump sets the product of one increment and said ratio.
- 2. The apparatus for dispensing plural component materials of claim 1 wherein said position sensors are magneto-restrictive.
- 3. The apparatus for dispensing plural component materials of claim 1 wherein said resolution increments are substantially less than said stroke.
RELATED APPLICATION
[0001] Provisional U.S. Application serial No. 60/186405, filed Mar. 2, 2000.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/US01/06904 |
3/2/2001 |
WO |
|