Grid drain
US6249920A · kind A · utility
11Cited by
15References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1998 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | May 7, 2018 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/232
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A grid drain for use in sinks without overflow drains comprising a solid cylindrical shell having an upper end and a lower end; the exterior side of the solid cylindrical shell has threads which thread from the lower end to the upper end; the upper end has an angulated flange arranged to seat in the drain opening in the sink; and the angulated flange has a top solid surface having a plurality of drain holes; wherein the size of the drain holes is large enough so that an air bubble will not form or will break immediately upon formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.