Patent ID: 9744544
Date: 2017-08-29
CPC Classifications: B05B,E04F

Claim:
1. A plural-component mixing system, comprising: a first reservoir containing a first liquid component, the first liquid component being supplied to a first manifold; a second reservoir containing a second liquid component, the second liquid component being supplied to a second manifold; a first pressure sensor for monitoring a pressure of the first liquid at the first manifold; a second pressure sensor for monitoring a pressure of the second liquid at the second manifold; a first bleed valve associated with the first manifold; a second bleed valve associated with the second manifold; and a programmable logic controller that receives signals from the pressure sensors and that is programmed to compare the pressure at the first sensor with the pressure at the second sensor and to open the first bleed valve if the pressure at the first sensor exceeds the pressure at the second sensor by a specified amount and to open the second bleed valve if the pressure at the second sensor exceeds the pressure at the first sensor by the specified amount; a spray gun in fluid communication with the manifolds to spray and mix the liquid components to form a sprayed foam insulation.