Conveyors: fluid current – Endless fluid current path
Reexamination Certificate
2006-07-11
2006-07-11
Dillon, Jr., Joe (Department: 3651)
Conveyors: fluid current
Endless fluid current path
C406S183000
Reexamination Certificate
active
07073985
ABSTRACT:
A system for pneumatically conveying a bulk particulate material generally consisting of means for holding such material, having an inlet and an outlet; a first material transport line segment including a first conduit formed of a gas permeable material having an inlet communicating with the outlet of the holding means and an outlet, defining a material flow passageway, and a second conduit formed of a gas impermeable material spaced from and encompassing the first conduit, defining a plenum; a second material transport line segment including a first conduit formed of a gas permeable material having an inlet communicating with the outlet of the first conduit of the first segment, defining a continuation of the material flow passageway, and an outlet, and a second conduit section formed of a gas impermeable material spaced from and encompassing the first conduit thereof, defining a plenum; the second segment being displaceable relative to the first segment between a first position communicating the outlet of the first conduit of the second segment with a receptacle into which the material is to be conveyed, and a second position communicating the outlet of the first conduit of the second segment with the inlet of the material holding means; means for supplying gas under pressure to the plenums, causing such gas to penetrate the first conduits to fluidize material flowing in the passageways and means for inducing the flow of material in the passageways, causing material induced therein from the holding means to be impelled therethrough.
REFERENCES:
patent: 1335205 (1920-03-01), Smith
patent: 2688517 (1954-09-01), Riordan
patent: 4442865 (1984-04-01), Shigeo
patent: 6227769 (2001-05-01), Wilson et al.
Mothersbaugh James E.
Pfeiffer John W.
Dillon, Jr. Joe
Stevens Davis Miller & Mosher LLP
The Young Industries, Inc.
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