Classifying – separating – and assorting solids – Sifting – Elements
Reexamination Certificate
2011-03-22
2011-03-22
Matthews, Terrell H (Department: 3653)
Classifying, separating, and assorting solids
Sifting
Elements
C209S393000, C209S395000, C209S403000
Reexamination Certificate
active
07909172
ABSTRACT:
A shaker screen including a screen frame and an inflatable sealing element integrally formed with the screen frame is disclosed. A screen sealing system including a plurality of shaker screens, each shaker screen having a screen frame and an inflatable sealing element integrally formed with the screen frame, wherein the inflatable sealing elements of each shaker screen are in fluid communication is also disclosed. A method of sealing a composite screen including assembling at least one shaker screen within a shale shaker and inflating at least one inflatable sealing element disposed along at least a portion of a perimeter of the screen frame, the portions selected from a group consisting of a top surface, a bottom surface, and an outer surface is disclosed.
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M-I L.L.C.
Matthews Terrell H
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