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

Claim 0:
1. 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 is an isotropic material that comprises a layer of fibers embedded in plastic.