Sink and drain for sink
AssigneeElkay Manufacturing Company
InventorsDaniel Keating Childs, Shawn Daly, Jonathan Chee Yeen Chong, Erik Lynch, Robert Zudic, Christopher Waas
Life of this patent
Estimating the term…
Abstract
Sinks and drains for sinks permitting the attachment of the drain to the sink such that the drain is substantially disposed below the top surface of the sink basin, and such that there is no discernable separation between the base of the sink basin and the drain when viewed from above the sink. A method of making a sink such that there is no discernable separation between the base of the sink basin and the drain when viewed from above the sink.
Claims7
1-20. (canceled)
A sink and drain assembly comprising:
- a sink basin having a sidewall and a base, the base having an opening;
- a drain entry disposed at the opening and having a first end welded to the base at the opening, the weld being smooth to appear integrally formed with the base when viewing into the sink basin, and a second end forming a drain opening, the drain entry including a substantially cylindrical section extending away from the base, the cylindrical section having a first diameter;
- a drain pipe with a second diameter that is less than the first diameter of the cylindrical section, the drain pipe disposed at the drain opening of the drain entry;
- a strainer disposed within the drain pipe;
- and
- a removable drain basket that includes a stopper, the stopper being selectively placeable between a lowered position in which the stopper covers the strainer to plug the drain opening, and a raised position, in which water flowing through the drain entry flows around the stopper and through the drain opening to the drain pipe.
The sink and drain assembly of claim 1, wherein the drain entry does not extend above the base through the opening.
The sink and drain assembly of claim 1, wherein the drain opening is integrally connected to the drain pipe.
The sink and drain assembly of claim 1, wherein the drain pipe has a threaded exterior surface.
A drain for a sink, the sink having a basin that includes a base having a drain opening, the drain comprising:
- a drain entry having a generally cylindrical shape that extends along a centerline, the drain entry having a first end portion welded to the base at the drain opening along a weld, the weld being smooth to appear integrally formed with the base on one side, and a second end portion disposed opposite the first end portion and defining an outer edge portion;
- a drain pipe having an inner edge portion, the drain pipe having a generally cylindrical shape and extending along the centerline such that the inner edge portion is disposed proximal the outer edge portion;
- the drain entry having a flange portion extending generally transversely to the centerline between the outer edge portion and the inner edge portion;
- and a strainer disposed along the drain pipe.
A drain for a sink, the sink having a basin that includes a base having a drain opening, the drain comprising:
- a drain entry portion having a generally cylindrical shape that extends along a centerline, the centerline defining a longitudinal axis, the drain entry portion having a first end portion welded to the base at the drain opening along a weld, the weld being smooth to appear integrally formed with the base on one side, and a second end portion disposed opposite the first end portion along the longitudinal axis and defining an outer edge portion, the outer edge portion being concentrically disposed around the longitudinal axis and being planar and disposed transversely to the longitudinal axis;
- a drain pipe having an inner edge portion, the drain pipe having a generally cylindrical shape and extending along the longitudinal axis, the inner edge portion being planar and disposed transversely to the longitudinal axis proximal to the outer edge portion;
- a radial portion extending between the outer edge portion and the inner edge portion;
- and a strainer disposed along the drain pipe.
Dependencies are inferred from the claim text.