Valves and valve actuation – Relatively movable valve elements form single port closure
Reexamination Certificate
2006-03-14
2006-03-14
Yu, Justine R. (Department: 3751)
Valves and valve actuation
Relatively movable valve elements form single port closure
C251S304000, C137S601110
Reexamination Certificate
active
07011292
ABSTRACT:
Bi-leaved valve apparatus for controlling bulk material flow from a bulk material metering apparatus. A bi-leaved valve apparatus comprises a cylindrical flow tube defining an axial material passageway, an outlet and a flow tube actuation surface. A valve support is mounted about the flow tube adjacent the flow tube outlet such that the valve support and flow tube are relatively rotatable. A pair of leaves are attached to the valve support and are sized to seal the flow tube outlet. The leaves are movable between open and closed orientations and have a valve actuation surface adjacent the flow tube actuation surface. An actuator causes relative rotational movement of the flow tube and valve support such that rotation to a first relative position causes the flow tube and valve actuation surfaces to open the leaves and rotation to a further relative position causes the leaves to close. The valve apparatus may be used with bulk material metering machines such as vertical form/fill/seal packaging machines.
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Author Name Redacted, Valve Drawings, Undated, 2 pages.
Auger Manufacturing Specialists brochure—2 pages—undated.
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Robert Bosch GmbH “Usage and mounting of auger filler FVS on the package makers PMC, PKR, PKD and on bag form fill and seal machines” —2pages—undated.
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Jansson, Shupe, Munger & Antaramian, Ltd.
Rost Andrew J.
Spee-Dee Packaging Machinery Inc.
Yu Justine R.
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