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Class Information
Number: 210/166
Name: Liquid purification or separation > Structural installation > Grated inlet surface drain > Concentric guard ring or rib
Description: Apparatus comprising a concentric ring or rib between the strainer and its associated surface wherein the ring or rib projects above the plane of the surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7442296 |
Disposable sink drain strainer |
Oct. 28, 2008 |
| 7300573 |
Catch basin filter |
Nov. 27, 2007 |
| 7132045 |
Sanitary, storm and catch basin trap with filter insert |
Nov. 7, 2006 |
| 7011746 |
Rainwater surface drain |
Mar. 14, 2006 |
| 7005061 |
Drain filter device |
Feb. 28, 2006 |
| 6994786 |
Phosphate beneficiation process using methyl or ethyl esters as float oils |
Feb. 7, 2006 |
| 6631588 |
Clog-free roof drain cover |
Oct. 14, 2003 |
| 6615817 |
Recycling system of wire saw abrasive grain slurry and centrifugal separators therefor |
Sep. 9, 2003 |
| 6428693 |
Temporary silt guard for sewer inlet |
Aug. 6, 2002 |
| 6416674 |
Silt-guard apparatus for use in a detention pond |
Jul. 9, 2002 |
| 6344137 |
Superimposed drain cover |
Feb. 5, 2002 |
| 6270662 |
Drain basin filter insert system |
Aug. 7, 2001 |
| 6261445 |
Temporary silt guard for sewer inlet |
Jul. 17, 2001 |
| 6217757 |
Storm drain filter with vertical screens |
Apr. 17, 2001 |
| 6202749 |
Well screen system |
Mar. 20, 2001 |
| 6093314 |
Drain insert for storm water sewer systems, and method of manufacture |
Jul. 25, 2000 |
| 6059964 |
Collapsible catch basin grate filter assembly |
May. 9, 2000 |
| 6004457 |
Temporary silt guard for sewer inlet |
Dec. 21, 1999 |
| 5843306 |
Temporary silt guard for storm water collection basin inlet |
Dec. 1, 1998 |
| 5800092 |
Method for delaying run-off of flash-storm water or ordinary rainwater from roofs and other surfaces with water-retention capability |
Sep. 1, 1998 |
| 5769566 |
Catch basin splash guard |
Jun. 23, 1998 |
| 5744048 |
Clog resistant storm drain filter |
Apr. 28, 1998 |
| 5733444 |
Debris catcher for manholes and catch basins |
Mar. 31, 1998 |
| 5702596 |
Roof water inlet |
Dec. 30, 1997 |
| 5650065 |
Skimmer cover for dry well in a catch basin |
Jul. 22, 1997 |
| 5632889 |
Filter cartridge for separating liquid hydrocarbons from water |
May. 27, 1997 |
| 5618416 |
Roof drain |
Apr. 8, 1997 |
| 5615526 |
Drains for single layer synthetic roofing and waterproofing membranes |
Apr. 1, 1997 |
| 5469670 |
Roof drain |
Nov. 28, 1995 |
| 5458769 |
Floor drain |
Oct. 17, 1995 |
| 5394657 |
Method and apparatus for free-standing water removal from roof and siphon head therefore |
Mar. 7, 1995 |
| 5378356 |
Roof drain structure |
Jan. 3, 1995 |
| 5376264 |
Drain trap |
Dec. 27, 1994 |
| 5372715 |
Siphonage floor drain and port protector |
Dec. 13, 1994 |
| 5341523 |
Anti-vortex drain |
Aug. 30, 1994 |
| 5337795 |
Apparatus for introducing filler material into containers |
Aug. 16, 1994 |
| 5285828 |
Apparatus for introducing filler material into containers |
Feb. 15, 1994 |
| 5102537 |
Piping outlet protector |
Apr. 7, 1992 |
| 5051175 |
Drain guard |
Sep. 24, 1991 |
| 4964180 |
Shower strainer mounting assembly |
Oct. 23, 1990 |
| 4961848 |
Drain grate with primary and secondary weirs |
Oct. 9, 1990 |
| 4658449 |
Proctective adapter for pool drain |
Apr. 21, 1987 |
| 4652365 |
Waste screen |
Mar. 24, 1987 |
| 4525273 |
Drain grate with adjustable weirs |
Jun. 25, 1985 |
| 4505814 |
Adjustably extensible roof drain receptacle |
Mar. 19, 1985 |
| 4475844 |
Method and apparatus for restricting local variations in ground level in the vicinity of surface water drains and manholes |
Oct. 9, 1984 |
| 4418432 |
Drain filter having filamentary surface irregularities to entangle hair and debris |
Dec. 6, 1983 |
| 4400272 |
Drain grate with adjustable weirs |
Aug. 23, 1983 |
| 4302126 |
Manhole cover support ring |
Nov. 24, 1981 |
| 4271929 |
Machine lubrication system |
Jun. 9, 1981 |
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