The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2003
Filed:
Aug. 13, 2001
Russell T. Pagel, Rolla, MO (US);
Jeremy W. McCutcheon, Rolla, MO (US);
Jeffrey L. Kohne, Rolla, MO (US);
Brewer Science, Inc., Rolla, MO (US);
Abstract
A dispenser ( ) for flowable, viscous material ( ) includes a housing ( ) comprising a main body ( ) and door ( ), and a reservoir ( ) for the material ( ) with an elongated, synthetic resin deformable outlet tube ( ) presenting an outlet end ( ) coupled to the reservoir ( ). A flow-controlling assembly ( ) including a tube-engaging element ( ) and an actuator linkage assembly ( ); these components together with a pneumatically operated piston ( ) within reservoir ( ) allows precise on-off operation of the dispenser ( ). In the flow-permitting position, the element ( ) is adjacent the tube ( ). When it is desired to terminate material flow, the actuator linkage assembly ( ) is operated to cause the element ( ) to move into deforming engagement with the tube ( ) against a backing surface ( ); continued movement of the element ( ) along the length of the tube ( ) in a direction away from outlet end ( ) generates a suction force causing material ( ) adjacent the end ( ) to be drawn into the confines of the tube ( ), preventing air-drying of material ( ) at end ( ).