Pipe with an outer wrap
AssigneeAdvanced Drainage Systems, Inc.
InventorsBill Russell Vanhoose, Nicholas James Piazza, Ronald Robert Vitarelli, Owen Michael Atchison, Tyler James Frost
Life of this patent
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Abstract
This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.
Claims18
A pipe, comprising:
- an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests connected by corrugation valleys, the corrugation crests and valleys forming a continuous cross-section;
- an outer wrap applied to the corrugated outer wall, the outer wrap spanning the corrugation crests producing a smooth outer surface;
- wherein the corrugated outer wall comprises high density polyethylene (HDPE),
- wherein the outer wrap comprises polypropylene (PP), and
- wherein the outer wrap is secured to the corrugated outer wall by a tension of the outer wrap.
A pipe, comprising:
- an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests connected by corrugation valleys, the corrugation crests and valleys forming a continuous cross-section;
- an outer wrap applied to the outer wall, the outer wrap spanning the corrugation crests producing a smooth outer surface;
- a bell at a first end of the bore and integrally formed with the bore;
- and
- a spigot at a second end of the bore, and
- wherein the corrugated outer wall comprises high density polyethylene (HDPE),
- wherein the outer wrap comprises polypropylene (PP), and
- wherein the outer wrap is secured to the corrugated outer wall by a tension of the outer wrap.
Dependencies are inferred from the claim text.