Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning...http://www.google.ca/patents/US7762088?utm_source=gb-gplus-sharePatent US7762088 - Apparatus and method for dispensing discrete amounts of viscous material