Plural component mixing system
First Claim
Patent Images
1. A plural-component mixing system, comprising:
- a reservoir containing a first liquid component;
a reservoir containing a second liquid component;
a mixing assembly for mixing and applying the first and second liquid components;
a supply system for supplying the liquid components from the reservoirs to the mixing assembly;
a programmable logic controller connected to the supply system to control the supply system and record information about use of the systema first bleed valve associated with the first liquid component;
a second bleed valve associated with the second liquid component;
a first pressure sensor for sensing a pressure of the first component, the first pressure sensor being in communication with the programmable logic controller;
a second pressure sensor for sensing a pressure of the second component, the second pressure sensor being in communication with the programmable logic controller; and
wherein the programmable logic controller is programmed to compare the pressure at the first pressure sensor with the pressure at the second pressure sensor and to open the first bleed valve if the pressure at the first pressure sensor exceeds the pressure at the second pressure sensor by at least a specified amount and to open the second bleed valve if the pressure at the second pressure sensor exceeds the pressure at the first pressure sensor by at least the specified amount.
1 Assignment
0 Petitions
Accused Products
Abstract
A plural component mixing system includes an automatic balance feature to balance the pressure of two or more components as they are mixed. The pressures or flow rates of the two components are monitored. If there is a difference in pressure or flow rate greater than a specified amount, a bleed valve is opened for a short period of time to balance the flows. A computer with a touch screen is used to set the pressure and flow rate differences that trigger the bleed, and to set the time period for the bleed.
-
Citations
27 Claims
-
1. A plural-component mixing system, comprising:
-
a reservoir containing a first liquid component; a reservoir containing a second liquid component; a mixing assembly for mixing and applying the first and second liquid components; a supply system for supplying the liquid components from the reservoirs to the mixing assembly; a programmable logic controller connected to the supply system to control the supply system and record information about use of the system a first bleed valve associated with the first liquid component; a second bleed valve associated with the second liquid component; a first pressure sensor for sensing a pressure of the first component, the first pressure sensor being in communication with the programmable logic controller; a second pressure sensor for sensing a pressure of the second component, the second pressure sensor being in communication with the programmable logic controller; and wherein the programmable logic controller is programmed to compare the pressure at the first pressure sensor with the pressure at the second pressure sensor and to open the first bleed valve if the pressure at the first pressure sensor exceeds the pressure at the second pressure sensor by at least a specified amount and to open the second bleed valve if the pressure at the second pressure sensor exceeds the pressure at the first pressure sensor by at least the specified amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A plural-component mixing system, comprising:
-
a reservoir containing a first liquid component; a reservoir containing a second liquid component; a mixing assembly for mixing and applying the first and second liquid components; a supply system for supplying the liquid components from the reservoirs to the mixing assembly, the supply system including a first bleed valve associated with the first liquid component and a second bleed valve associated with the second liquid component; a programmable logic controller connected to the supply system to control the supply system and record information about use of the system; and wherein the programmable logic controller is programmed to open the first bleed valve for a first specified period of time each time the first bleed valve is opened, and wherein the programmable logic controller is programmed to open the second bleed valve for a second specified period of time each time the second bleed valve is opened. - View Dependent Claims (15, 16, 17, 18, 19)
-
-
20. A plural-component mixing system, comprising:
-
a reservoir containing a first liquid component; a reservoir containing a second liquid component; a mixing assembly for mixing and applying the first and second liquid components; a supply system for supplying the liquid components from the reservoirs to the mixing assembly; a programmable logic controller connected to the supply system to control the supply system and record information about use of the system; a proportioner pump; and an internal-combustion engine that provides power to the proportioner pump, wherein the internal combustion engine drives an air compressor, and pressurized air generated by the air compressor drives the proportioner pump. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
-
Specification