초록 ▼

The conduit includes a top wall (A) and a base (B). The top wall A has an apex area (10) which is connected with a first corrugated side wall (12) and a second corrugated side wall (32). The side walls having alternating peaks (22, 42) and valleys (24, 44). The peaks have apex ends (26, 46) which ar

The conduit includes a top wall (A) and a base (B). The top wall A has an apex area (10) which is connected with a first corrugated side wall (12) and a second corrugated side wall (32). The side walls having alternating peaks (22, 42) and valleys (24, 44). The peaks have apex ends (26, 46) which are disposed closely adjacent each other at the apex area to define a hinge region therebetween. Disposed along the apex area and on the side wall peaks are a plurality of outward projecting dimples (70, 72, 74) which are severable by a tangentially disposed knife blade to form a plurality of apertures (50, 52, 54). The base B is a flexible sheet of plastic mesh material.

대표청구항 ▼

A multi-layered corrugated plastic conduit comprising: at least a first longitudinally extending side wall, the side wall comprising an inner layer of a first plastic material and an outer layer of a second material, the side wall having a plurality of transversely extending alternating peaks and va

A multi-layered corrugated plastic conduit comprising: at least a first longitudinally extending side wall, the side wall comprising an inner layer of a first plastic material and an outer layer of a second material, the side wall having a plurality of transversely extending alternating peaks and valleys; the side wall defining a plurality of apertures therein, each aperture being defined by an opening in the outer layer which has a peripheral ring of the first material extending therethrough, the aperture being defined in and surrounded completely by the first material.