Drain fitting

Claim 1

In a fitting for a drain floor having an opening toward which a drain pipe projects, the combination comprising a. a tubular body sized for reception in said opening and having an outwardly projecting top flange to overlie the floor extent bounding the opening, an external thread below said opening at the body exterior, and a nut threadably engaging the thread and rotatable relative to the body to effect clamping of said floor extent between the top flange and nut, said body, flange, thread and nut consisting of molded plastic material, b. and a plate having a flange overlying said top flange and a grille bounded by said flange, and the body defining a bore extending below the level of said grille and sized to receive said pipe with push fit interference, whereby the pipe and body may be rapidly made up and bond connected at said bore, c. the body defining a counterbore located inwardly of said flange and a support shoulder formed between the bore and counterbore, d. and the plate having an integral annular boss which bounds the grille in radially outwardly spaced relation thereto, the boss and said counterbore having interference engagement whereby the boss is deflected inwardly toward the grille upon assembly of the plate onto the body and the boss frictionally retains the plate and body in removably assembled relation, the boss terminal located proximate said support shoulder whereby the plate is supported via the boss and independently of the plate flange.