Pipe for conveying solids

Details Pipe for conveying solids Pipe for conveying solids

1996-02-07

1998-09-29

Brinson, Patrick F.

Pipes and tubular conduits

Combined

With end structure

138177, 138172, 285 55, 285416, F16L 904

Patent

active

058134379

ABSTRACT:
A pipe for conveying solids, particularly for conveying concrete, includes a cylindrical middle portion and a welding neck with a coupling ring flange. The welding neck has an inner layer and an outer layer, wherein the inner layer is of a material which has a greater resistance to wear than the outer layer. The inner layer and the outer layer have end faces which extend in a common transverse plane. The inner layer is of ceramic material or of cast material resistant to wear by impacts, such as, Ni-hard IV, and the entire surface of the inner layer is glued into an internal groove of the coupling ring flange.

REFERENCES:
patent: 3156489 (1964-11-01), Deringer
patent: 3419291 (1968-12-01), Tomb et al.
patent: 4234019 (1980-11-01), Hornor et al.
patent: 4361336 (1982-11-01), Reeh et al.
patent: 5044670 (1991-09-01), Esser
patent: 5275440 (1994-01-01), Esser
patent: 5379805 (1995-01-01), Klemm et al.

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