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:
May. 28, 1991
Filed:
Mar. 13, 1989
James J Allard, Vacaville, CA (US);
Pauli & Griffin, Vacaville, CA (US);
Abstract
A pneumatic tube selector mechanism is provided for use in conjunction with an abrasive sandblast media recovery system. The tube selector selectively couples a vacuum source to any particular one of a plurality of discrete media collection locations which may take the form of tube and hopper sections. The tube selector mechanism includes an intake manifold having a multiplicity of intake ducts. A selector plate is rotationally coupled to the inlet manifold. The selector plate has an opening that is coupled to a vacuum duct which in turn is coupled to the vacuum source. A drive motor rotates the selector plate relative to the intake manifold, while a positioning mechanism controls rotation of the selector plate to selectively couple the selector plate opening to any particular one of the intake ducts. A vent valve is provided for venting the vacuum duct while the selector plate is rotated.