Patent ID: 6350092
Filing Date: 2002-02-26
Classification: F16B,Y10T

Abstract:
A fastener for securely attaching a board perpendicularly to an edge of a composite board, said fastener comprising;a) a first portion for engaging in a blindbore in the edge of the composite board; and b) a Second portion engaging said first portion for extending in a countersunk-throughbore in the board; wherein said first portion comprises a dowel for fixedly engaging in the blind bore in the edge of the composite board; wherein said dowel is aluminum 6061 T6; wherein said dowel has a diameter that is adapted to be equal to the blindbore centrally in the edge of the composite board; wherein said first portion further comprises a washer that removably abuts against said dowel for removably abutting against the edge of the composite board for limiting travel of said dowel in the blindbore in the edge of the composite board; wherein said first portion further comprises glue that is disposed on said dowel and is for disposing in the blindbore in the edge of the composite board so as to fixedly engage said dowel in the blindbore in the edge of the composite board; wherein said first portion further comprises an installation screw that extends through said washer and threadably into said dowel, and when tightened, holds said first portion together as a unit, for installation into the blindbore in the edge of the composite board, and once said unit is installed, said glue maintaining said first portion in the blindbore in the edge of the composite board; wherein said dowel is cylindrically-shaped, and has: i) a first end that is closed for fixedly engaging in the blindbore in the edge of the composite board; ii) a second end that is open for fixedly aligning with the edge of the composite board; iii) an outer longitudinal surface for fixedly engaging the blindbore in the edge of the composite board; and iv) a blindbore that extends longitudinally centrally from said second end of said dowel to short of said first end of said dowel; and wherein said outer longitudinal surface of said dowel is etched with 50% HCl solution to give a thin black coating to improve pullout strength of said dowel, as opposed to at least one of knurls, truncated threads, and roughening which would decrease said pullout strength of said dowel.