Patent ID: 7264431
Filing Date: 2007-09-04
Classification: E03C,F16B,F16L,Y10T

Abstract:
1. A rigid fastener for securing to one another adjacent portions of a cover member made of resiliently yieldable material, said fastener being of generally cylindrical form and having opposite end portions, at least one of said end portions being a double-effect engagement portion comprised of an axially outward end section, having a first inside diameter and a first effective outside diameter, and an axially adjacent inward section having a second inside diameter and a second effective outside diameter, wherein said second effective outside diameter is substantially larger than said first effective outside diameter, each of said sections of said engagement portion being comprised of a plurality of circumferentially extending, mutually adjacent retaining elements engageable in mating recess sections formed into a portion of a resiliently yieldable cover member, said retaining elements of said outward end section of said engagement portion being of said first effective outside diameter and said retaining elements of said inward section being of said second effective outside diameter, wherein said first inside diameter and said second inside diameter are substantially the same, and wherein crests of at least some of said retaining elements of said outward section are rounded for easy disengagement of said outward section from the cover member.