Conveyors – chutes – skids – guides – and ways – Chutes – Switch
Reexamination Certificate
2011-07-12
2011-07-12
Dillion, Jr., Joe (Department: 3651)
Conveyors, chutes, skids, guides, and ways
Chutes
Switch
C406S183000
Reexamination Certificate
active
07975824
ABSTRACT:
A system and method for changing a flow direction of dry bulk material which comprises constructing a steel clad ceramic elbow or pipe or planar flip gate and placing the same in a location where a flow direction change is desired and where abrasion will occur. The inside of the pipe has a steel surface, as does the exterior of the pipe. The ceramic material is disposed in the gap between the steel exterior and interior. The interior steel pipe wears away in portions but the remaining non-worn away portion still provides valuable support for the uncovered ceramic portions.
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Applicant Admitted Prior Art—Abresist, The Wear Protection People, promotional literature entitled “Abrasion Resistant Pipes for Pneumatic and Hydraulic Systems”.
Applicant Admitted Prior Art—Abresist, The Wear Protection People, promotional literature entitled “Abrasion Resistant Linings for Production and Conveying Systems”.
Dillion, Jr. Joe
Simmons Perrine Moyer Bergman PLC
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