Dispensing device for multiple components

Abstract

A dispensing device which includes two chambers, one for holding a resin and another for a hardener. Each chamber has an exit port formed in a neck which contains passageways leading to each of the chambers. The neck is equipped with external threads which mate with internal threads on a nozzle adjusting nut. A nozzle, which is carried by the nut can be moved from an open position to a closed position in which a portion of the nozzle's base closes the ports. A divider or tab projects from the neck at a location near and between the ports, and the nozzle has a slot to receive the divider. The divider serves to prevent mixing of the components until well after they exit the ports. The divider/slot arrangement further prevents mixing of the components by preventing relative rotation between the nozzle and the neck. Three separate sealing surfaces are formed on the base of the nozzle. One is cylindrical and seals against an O-ring carried by the neck. Two others are laterally disposed and are generally perpendicular to the axis of the device. The lateral sealing surfaces are on opposite sides of the slot and move into and out of sealing engagement with the ports. The nut operates as a valve to open and close the ports, and the nut acts as a retainer to non-rotatably hold the nozzle on the neck.

Dependencies are inferred from the claim text.