초록 ▼

A pipe coupling for joining abutting sections of pipe particularly adapted for connecting corrugated plastic drain pipe to provide a strong yet flexible coupling having a relatively smooth external surface thereby avoiding entanglement of the coupling in the guide of a trencher for the subterranean

A pipe coupling for joining abutting sections of pipe particularly adapted for connecting corrugated plastic drain pipe to provide a strong yet flexible coupling having a relatively smooth external surface thereby avoiding entanglement of the coupling in the guide of a trencher for the subterranean laying of the pipe. The pipe coupling consists of a substantially flexible rectangular shaped sleeve having at least two rows of teeth disposed along the length of the sleeve and means for fastening the ends of the sleeve around two sections of pipe to allow each row of teeth to engage at least one corrugated groove disposed at or near the end of each section of pipe to provide a coupling having a wide range of applicability for connecting a variety of corrugated pipe configurations.

대표청구항 ▼

A one-piece pipe coupling for joining abutting sections of annularly corrugated non-metallic pipe having annular grooves and lips comprising: (a) a substantially rectangular non-metallic pipe coupling body having two ends and a resilient center portion radially deformable to form a sleeve member; (b

A one-piece pipe coupling for joining abutting sections of annularly corrugated non-metallic pipe having annular grooves and lips comprising: (a) a substantially rectangular non-metallic pipe coupling body having two ends and a resilient center portion radially deformable to form a sleeve member; (b) a first single row of ribs disposed along the length of said coupling body and adjacent to a first side of said coupling body; (c) a second single row of ribs disposed along the length of said coupling body and adjacent to a second side of said coupling body and substantially parallel to said first single row of ribs; (d) at least two strap projections integral with one end of said coupling body; (e) at least two strap engaging openings integral with the other end of said coupling body; and (f) independent tensioning and securing means provided in said strap projections and strap engaging openings cooperating with said first single row of ribs and said second single row of ribs and said resilient center portion to tension and secure said sleeve member around each abutting section of annularly corrugated pipe to the maximum extent permitted by the outside diameter and groove configuration of said pipe by forcing said first single row and second single row of ribs in securement with one corrugation of each abutting section of said pipe while providing a flexible joint by allowing cooperation between said first single row and second single row of ribs and said resilient center portion.