Sink and drain for sink

Patent metadata

Field	Value
Publication number	US-10519637-B2
Application number	US-201715700928-A
Country	US
Kind code	B2
Filing date	Sep 11, 2017
Priority date	Mar 25, 2011
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

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.

First claim

What is claimed is:

1. A sink comprising:
a sink basin having a sidewall and a base in a bottom portion thereof, the base having a drain opening;
a first drain entry portion integrally formed from the base and extending from the bottom portion at the drain opening to form an extension, the extension having external threads; and
a second drain entry portion including a first end portion with an internal thread extending between first and second axial locations, the first end portion configured to be received on the external threads of the extension and a radially inwardly extending flange positioned at the second axial location of the internal thread and disposed to be drawn towards the extension of the first drain entry portion when the second drain entry portion is threaded onto the first drain entry portion.

2. The sink of claim 1 , further comprising at least one drain element, wherein the second drain entry portion is sized and shaped to house the at least one drain element.

3. The sink of claim 2 , wherein the at least one drain element is a strainer.

4. The sink of claim 3 , further comprising a removable drain basket that includes a stopper, the stopper being selectively placeable between a lowered portion, in which the stopper covers the strainer to plug the drain opening, and a raised position, in which water from the drain entry portion flows around the stopper through the drain opening.

Assignees

• Elkay Mfg Co

Inventors

• Childs Daniel Keating
• Daly Shawn
• Chong Jonathan Chee Yeen
• Lynch Erik
• Zudic Robert
• Waas Christopher

Classifications

• E03C1/2306

  the plug being operated by hand contact · CPC title

• E03C1/264

  Separate sieves or similar object-catching inserts · CPC title

• E03C1/182 Primary

  connected to the waste-pipe · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• E03C1/262

  combined with outlet stoppers · CPC title