Patent ID: 11898688
Assignee: ADVANCED DRAINAGE SYSTEMS, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 10:
11. 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,
wherein the spigot comprises a smaller outer diameter than an outer diameter of the bell,
wherein the outer wrap completely covers the bell and the spigot, and
wherein the outer wrap is an isotropic material that comprises a layer of fibers embedded in plastic.