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US 9,429,267 B2Granted
Pipe systems
OwnerDonald C. Dunninventor
Life of this patent
Estimating the term…
Abstract
A system relating to ceramic/rubberized lined steel pipes adapted to carry crushed rock and other highly abrasive materials.
Claims18
A system, relating to providing interior wear-resisting surfaces inside abrasive-material-handling pipes, comprising:
- a) at least one abrasive-material-handling pipe structured and arranged to internally handle at least one flow of abrasive material;
- b) at least one interior-wear resister structured and arranged to resist wear of the inside surface of said at least one abrasive-material-handling pipe;
- c) at least one force-change absorber structured and arranged to absorb force-changes occurring inside of said at least one abrasive-material-handling pipe while handling at least one flow of abrasive material;
- and
- d) at least one bond structured and arranged to bond said at least one interior-wear resister inside said at least one abrasive-material-handling pipe;
- e) wherein said at least one force-change absorber comprises at least one elastic layer of vulcanized rubber.
3 more elements
A system, relating to providing interior wear-resisting surfaces inside abrasive-material-handling pipes, comprising:
- a) at least one abrasive-material-handling pipe structured and arranged to internally handle at least one flow of abrasive material;
- b) at least one interior-wear resister structured and arranged to resist wear of the inside surface of said at least one abrasive-material-handling pipe;
- c) at least one force-change absorber structured and arranged to absorb force-changes occurring inside of said at least one abrasive-material-handling pipe while handling at least one flow of abrasive material;
- and
- d) at least one bond structured and arranged to bond said at least one interior-wear resister inside said at least one abrasive-material-handling pipe;
- e) wherein said at least one interior-wear resister comprises at least one layer of ceramic;
- f) wherein said layer of ceramic comprises a cylinder of ceramic;
- g) wherein said at least one force-change absorber comprises at least one elastic layer of vulcanized rubber;
- and
- h) wherein said at least one bond comprises at least one vulcanized bond.
7 more elements
A system, relating to providing interior wear resisting surfaces inside abrasive-handling pipes, comprising:
- a) at least one abrasive-material-handling pipe structured and arranged to internally handle at least one flow of abrasive material;
- b) at least one interior-wear resister structured and arranged to resist wear of the inside surface of said at least one abrasive-material-handling pipe;
- c) at least one force-change absorber structured and arranged to absorb force-changes occurring inside of said at least one abrasive-material-handling pipe while handling at least one flow of abrasive material;
- d) at least one bond structured and arranged to bond said at least one interior-wear resister inside said at least one abrasive-material-handling pipe;
- e) wherein said at least one interior-wear resister comprises at least one layer of ceramic;
- f) wherein said layer of ceramic comprises a cylinder of ceramic;
- and
- g) wherein said ceramic comprises at least 90% alumina.
5 more elements
Dependencies are inferred from the claim text.