Sludge collector flight
AssigneeFMC Corporation
InventorStephen B. Wilcher
Life of this patent
Estimating the term…
Abstract
A sludge collector mechanism for scraping settled sludge off the bottom of a settling tank is disclosed wherein a sludge collector flight comprises a high strength "H"-shaped cross section and inwardly projecting lips for engaging the outwardly projecting clips of a wear shoe to thereby secure the wear shoe to the sludge collector flight.
Claims9
A sludge collector mechanism for scraping settled sludge off the bottom of a settling tank, the sludge collector mechanism including a sludge collector flight comprising:
- an "H"-shaped cross section having a substantially flat front face, a substantially flat rear face and a transverse stem joining the front and rear faces;
- a first lip extending transversely from proximate an end of the front face;
- and
- a second lip extending transversely from proximate a corresponding end of the rear face;
- wherein said "H" shape comprises an open-ended region between said first and second lips.
A sludge collector mechanism for scraping settled sludge off the bottom of a settling tank, the sludge collector mechanism comprising:
- a sludge collector flight which comprises an "H"-shaped cross section having a substantially flat front face, a substantially flat rear face, a first lip extending transversely from proximate an end of the front face toward the rear face, and a second lip extending transversely from proximate a corresponding end of the rear face toward the front face;
- a wear shoe which comprises a base having a substantially flat wearing surface, a stem extending transversely from the base, a first clip extending transversely outwardly from a first side of the stem, and a second clip extending transversely outwardly from a second side of the stem;
- wherein the first and second clips are engageable with the first and second lips to thereby secure the wear shoe to the sludge collector flight.
Dependencies are inferred from the claim text.