Pneumatic tube selector mechanism

Details Pneumatic tube selector mechanism Pneumatic tube selector mechanism

1989-03-13

1991-05-28

Rose, Robert A.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51273, 98 4206, 981151, B24C 900

Patent

active

050183192

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.

REFERENCES:
patent: Re22047 (1942-03-01), Grant, Jr.
patent: 2033466 (1936-03-01), Grant, Jr.
patent: 2912918 (1959-11-01), Mead
patent: 3863392 (1975-02-01), Haker

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