Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Reexamination Certificate
2010-08-24
2011-12-13
Upton, Christopher (Department: 1778)
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
C210S527000, C210S541000, C198S621100, C198S622000, C198S747000
Reexamination Certificate
active
08074810
ABSTRACT:
Apparatus and methods provide individual blades driven by drives configured to reduce a tendency of sludge to be moved in an undesired return direction. Drive configurations apply “pull” and “pull” forces that only pull on tensile structures, avoiding a need in actual commercial practice for use of extra structural drive members having high resistance to both tension and compressive forces exerted parallel to a sludge movement direction. Each of two separate tensile structures carries one blade, or a separate set of blades, with blade(s) of one structure adjacent to, and alternating with, blade(s) of the other structure. Embodiments move sludge from a corner of a basin and across a floor of the basin. The reduced tendency of sludge movement in the return direction results from moving one tensile structure and blade(s) in the sludge movement direction as the other tensile structure and adjacent opposed blade(s) move in the return direction.
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Brauch Joseph Karl
Meurer Charles Lonnie
Meurer Research Inc.
Sheridan & Ross P.C.
Upton Christopher
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