US 4,883,590 AGranted

Adjustable floor drain apparatus

OwnerDavid J. Pappinventor

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Abstract

An adjustable floor drain apparatus having an outer cylindrically shaped body with threads on the inside thereof attached to the top of a drain pipe. A cylindrical member is disposed inside of the outer body so that concrete can be poured around the cylindrical member and the concrete will not enter the outer body. An inner cylindrically shaped body having threads on the exterior thereof is provided for mating with the inside threads on the outer body whereby the inner body can be threaded into the outer body and whereby the top thereof can be adjusted up or down to conform to the height of the finished floor. A ring is adapted to engage the top of the inner body and the ring has a partially spherical surface around the lower periphery thereof which contacts the top of the inner body which also has a complementary shaped partial spherical surface thereon for providing a mating slideable joint between the ring and the inner body. The ring is adjustably attached to the inner body. A grate is disposed in a recess on the ring and an optional basket strainer can be installed under the grate.

Claims5

Dependent claims

An adjustable floor drain apparatus comprising:

an outer cylindrically shaped body having an interior portion having threads disposed on the inside thereof, and having a predetermined inner diameter;
means for attaching said outer body to a top portion of a drain pipe having an outer diameter smaller than said predetermined inner diameter of outer body;
means for forming a seal between the top of said pipe and the bottom of said outer body;
a stepped shoulder removable cylindrical member having an enlarged upper outer diameter and a reduced dimension lower outer diameter wherein the lower outer diameter is smaller than the diameter of said inner portion of said outer body whereby at least the lower outer diameter of said cylindrical member is slideable relative to the inside of said outer body so that concrete poured around said cylindrical member will not come into contact with a substantial portion of the threads on the outer body and whereby said cylindrical member is removable from said outer body after the concrete has cured;
an inner cylindrically shaped body having thread means on the exterior thereof for mating with the inside thread means on said outer body whereby said inner body is threadable into said outer body in a space vacated by said cylindrical member;
ring means adapted to engage the top of said inner body, said ring means having a partially spherical surface around the lower outer periphery thereof and the top of said inner body having a complementary shaped partial spherical surface thereon for providing a mating slidable joint between said ring means and said inner body;
means for adjustably attaching said ring means to said inner body;
a grate having openings therethrough;
and
recess means for receivably holding said grate on top of said ring means.

7 more elements

Dependencies are inferred from the claim text.