Material dispensing system
First Claim
Patent Images
1. A material dispenser adapted to receive a pressurized stream of material, having a variable flow rate and to apply several separate portions of said received material to an object, said dispenser comprising:
- applicator means, having a material reception orifice adapted to receive said stream of said material and to output said received material through an outlet orifice of variable size, for applying said separate portions of said received material to the surface of said object; and
control means, coupled to said applicator means and under stored program control, for forcing said flow rate to be substantially equal to a first flow rate value and for measuring a first pressure of said stream of material when said stream is made to flow at a rate substantially equal to said first flow rate value and for selectively changing said flow rate of said stream of material to a second flow rate value and for varying said size of said material outlet orifice in order to ensure that the pressure of said stream of material, flowing at a rate substantially equal to said second flow rate value, is substantially equal to said first pressure whereby, each of said applied material portions are made to be substantially similar.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus 10 are disclosed for applying a bead or strip of material 16 upon an object 18, such that the bead 16 has a desired cross-sectional area. Moreover, system 10 includes a source 30, controller 38, a dispensing apparatus 28, and a gun 14. In operation, controller 38, by controlling gun 14, ensures that a constant pressure of material is output from unit 28 to gun 14, for a variety of material flow rates from unit 28.
-
Citations
4 Claims
-
1. A material dispenser adapted to receive a pressurized stream of material, having a variable flow rate and to apply several separate portions of said received material to an object, said dispenser comprising:
-
applicator means, having a material reception orifice adapted to receive said stream of said material and to output said received material through an outlet orifice of variable size, for applying said separate portions of said received material to the surface of said object; and control means, coupled to said applicator means and under stored program control, for forcing said flow rate to be substantially equal to a first flow rate value and for measuring a first pressure of said stream of material when said stream is made to flow at a rate substantially equal to said first flow rate value and for selectively changing said flow rate of said stream of material to a second flow rate value and for varying said size of said material outlet orifice in order to ensure that the pressure of said stream of material, flowing at a rate substantially equal to said second flow rate value, is substantially equal to said first pressure whereby, each of said applied material portions are made to be substantially similar.
-
-
2. A material dispensing system comprising:
-
dispensing means for receiving a quantity of material and for outputting a stream of said received material, at a certain selectable flow rate therefrom; application means for receiving said stream of material at a certain pressure and for applying certain portions of said material to an object; robot means, coupled to said application means, for moving said application means in a predetermined pattern, in close proximity to said object, effective to allow said application means to apply said certain portions of said material to said object and for outputting a signal representing a selected flow rate of said stream of material; control means, coupled to said robot means, to said application means, and to said dispensing means, for receiving said selected flow rate signal and for forcing said dispensing means to output said stream of material at said selected flow rate and for causing said certain pressure to remain constant whereby, each of said applied portions are made to be substantially similar. - View Dependent Claims (3, 4)
-
Specification