Liquid purification or separation – With movable support
Reexamination Certificate
2008-12-15
2010-12-07
Upton, Christopher (Department: 1797)
Liquid purification or separation
With movable support
C210S305000, C210S532100, C015S340100, C015S353000
Reexamination Certificate
active
07846331
ABSTRACT:
A vacuum truck has a cylindrical tank which can be pivoted to discharge through a rear door is arranged for transporting collected solids while liquid is extracted and returned. Two tank extraction outlets in the top wall at the front and rear are connected to the vacuum pump and each includes a float valve ball contained in a receptacle above the top wall as to allow the tank to be filled to the top wall. For separating the materials into liquid which is pumped away and solids for transportation, the tank includes a generally upstanding dividing wall across the tank having a bottom wall portion, which can pivot away as the tank is tilted, and has a top edge defining a weir over which liquid can flow into the liquid collection area, and an upper screening section defined by a support screen and a hanging chain curtain in front of the screen.
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Ade & Company
Battison Adrian D.
Upton Christopher
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