Patent ID: 8348100

Claim:
An adhesive dispensing device comprising: a primary manifold including a closure element with a fluid inlet, a base member having a through channel, and a heat transfer member positioned between said closure element and said base member, said heat transfer member communicating with said fluid inlet and said through channel and including a plurality of heat transfer surfaces which are arranged in a parallel and spaced apart relationship with each other; a nozzle attached to and in fluid communication with said through channel of said base member, said nozzle adapted to discharge the adhesive; a control unit coupled to said base member and including a valve mechanism with a valve piston extending into said base member, said valve piston moveable to selectively block flow of adhesive from said through channel to said nozzle; and a heat transfer passage disposed through the heat transfer member and defining a flow path for the adhesive, said heat transfer passage having a cross-sectional area that varies along said flow path, wherein said heat transfer passage is defined by respective spaces between adjacent heat transfer surfaces, and the space between adjacent heat transfer surfaces decreases in a direction of flow along said flow path.