Patent ID: 8763861

Claim:
A dispensing device for dispensing a first and a second component of an adhesive, the dispensing device comprising: a first and a second manifold member, each manifold member having a distribution chamber therein, the second manifold member having an exterior surface thereon, a portion of the exterior surface of the second manifold member having a discharge area defined thereon; a set of conveying tubes each having a supply end and a discharge end, the conveying tubes being supported within the dispensing device such that the supply ends thereof are disposed in fluid communication with the first distribution chamber, the conveying tubes collectively presenting a predetermined total cross-sectional flow area to the first distribution chamber; an array of passages extending through the second manifold member, the passages being disposed in fluid communication with the second distribution chamber and with the discharge area; each conveying tube extending substantially concentrically through a respective passage thereby to define a substantially annular flow space within the passage, the annular flow spaces collectively presenting a predetermined total cross-sectional flow area to the second distribution chamber; wherein the total cross-sectional flow area presented to the first distribution chamber by the tubes is substantially equal to the total cross-sectional flow area presented to the second distribution chamber by the annular flow spaces; the passages being arranged over the discharge area such that first and second components that respectively emanate from the tubes and the flow spaces are able to intermix with each other on the discharge area of the second manifold member; wherein the first and second components of the adhesive are in a predetermined ratio with respect to each other, and wherein the ratio of the total cross-sectional flow area presented to the first distribution chamber by the tubes to the total cross-sectional flow area presented to the second distribution chamber by the annular flow spaces is substantially equal to the predetermined ratio of the components.