US 5,294,155 AGranted

Cored hole waterproofing apparatus

OwnerRobert Southwickinventor

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Abstract

A waterproofing apparatus for sealing cored holes from water while supporting the riser clamp and weight of the riser. The apparatus is comprised of a cylindrically shaped sleeve constructed preferably from plastic having a body and a sealing flange and cylindrically shaped support ring constructed preferably from metal. The sleeve is elongated with the sealing flange located towards the center of the body. The body of the sleeve fits into the cored hole such that the flange rests upon the flooring through which the hole was cored and the upper end of the body extends above the flooring. The support ring fits over the outside diameter of the sleeve such that the ring rests on the flange member and extends above the upper end of the sleeve. Upon installation, the riser clamp is placed on the riser such that the riser's weight forces the clamp against the upper end of the support ring and supports the riser. The steel construction of the ring allows it to support the heavy weight of the riser in lieu of the plastic sleeve.

Claims12

Dependent claims

In a waterproofing system for waterproofing a cored hole formed through flooring through which a riser passes, comprising:

(a) a substantially cylindrically shaped and substantially vertically extending sleeve, said sleeve comprised of a body portion and a sealing flange, said body portion having an outside diameter slightly smaller than the diameter of said cored hole and adapted for fitting in said cored hole and extending above said flooring, said sealing flange being connected to said body portion, said sealing flange extending horizontally outward from the periphery of said body portion and having an outside diameter larger than said outside diameter of said body portion and larger than the diameter of said hole, said sealing flange being adapted for placement against said flooring for sealing of said cored hole from water;
and
(b) a substantially cylindrically shaped support ring for supporting the weight of a riser, said ring being constructed from a material which is more durable than said sleeve and having an inside diameter slightly larger than said outside diameter of said body portion and being adapted for placement around said body portion, said inside diameter of said ring being smaller than said outside diameter of said sealing flange, the lower end of said support ring being adapted for engagement with said sealing flange and the upper end of said support ring extending above the upper end of said sleeve, said support ring being formed from a material capable of withstanding the weight of said riser.

In a waterproofing system for sealing a cored hole formed through a building floor through which a riser passes, a cylindrically shaped sleeve having a body portion adapted for extending within said hole and having an upper end extending above said floor, said body portion having an outside diameter and an inside diameter;

a riser clamp located above said sleeve and attached to said riser for supporting said riser, wherein the improvement comprises:
(a) said sleeve having a horizontally extending sealing flange connected thereto, said sealing flange extending outwardly from the periphery of said body portion of said sleeve, said sealing flange having an outside diameter larger than said outside diameter of said body portion, said sealing flange adapted for overlying and being in contact with said floor for sealing of said hole from water;
and
(b) a substantially cylindrically shaped support ring for supporting said riser clamp, said ring having a lower end and an upper end and being formed from a material capable of withstanding the weight of said riser, said support ring having an inside diameter larger than said outside diameter of said body portion of said sleeve and adapted for placement around said body portion, said inside diameter of said support ring being smaller than said outside diameter of said sealing flange, the lower end of said support ring being adapted for engaging said sealing flange, the upper end of said support ring extending above the upper end of said sleeve.

1 more element

Dependencies are inferred from the claim text.