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Class Information
Number: 210/131
Name: Liquid purification or separation > Flow, fluid pressure or material level, responsive > Fluid pressure responsive by-pass > By movement of separation medium
Description: Apparatus in which the responsive means is a separating element or filter medium which provides a bypass by flexing or compression thereof or by movement in its entirety.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7384547 |
Replaceable filter element with integral annular trap |
Jun. 10, 2008 |
| 7238279 |
Impulse-responsive rotary actuator for storm drain barrier not disabled by immersion |
Jul. 3, 2007 |
| 7234894 |
Storm drain basin gate system |
Jun. 26, 2007 |
| 7011743 |
Water pollution trap with water flow baffles |
Mar. 14, 2006 |
| 6994783 |
Water pollution trap with inlet basket |
Feb. 7, 2006 |
| 6955756 |
Storm drain movable baffle |
Oct. 18, 2005 |
| 6951607 |
Mobile pollution trap and method |
Oct. 4, 2005 |
| 6939461 |
Water pollution trap with oil segregator/collector |
Sep. 6, 2005 |
| 6936163 |
Water pollution trap with clay collector |
Aug. 30, 2005 |
| 6869523 |
Curbside drain barrier for detaining solid trash during no or slow water flow |
Mar. 22, 2005 |
| 6824677 |
Curbside trap for pollutants and solid trash |
Nov. 30, 2004 |
| 6803022 |
Device and method for separating components of a fluid sample |
Oct. 12, 2004 |
| 6797161 |
Multi-stage water pollution trap |
Sep. 28, 2004 |
| 6733665 |
Storm drain system for preventing and filtering debris, trash and hydrocarbons with removable inserts |
May. 11, 2004 |
| 6685829 |
Fluid filter with a discharge dome that is fixed to the housing |
Feb. 3, 2004 |
| 6613221 |
Sieve filter for fluid conduits, especially for hydraulic pressure lines in internal combustion engines |
Sep. 2, 2003 |
| 6478954 |
Debris collecting apparatus |
Nov. 12, 2002 |
| 6475380 |
Hydraulic oil reservoir |
Nov. 5, 2002 |
| 6423215 |
Fluid filter unit with automatic clogged filter element bypass and ferrous indicator flag |
Jul. 23, 2002 |
| 6270660 |
Flow inverter for filters |
Aug. 7, 2001 |
| 6224753 |
Water catchment device floating at the surface of a basin and supplying a pumping system |
May. 1, 2001 |
| 6217756 |
Drain grate responsive to high flow rates of water |
Apr. 17, 2001 |
| 6165355 |
Fluid filter having a three way valve construction |
Dec. 26, 2000 |
| 6165354 |
Filter having a filter element adjustable to a bypass position |
Dec. 26, 2000 |
| 6015489 |
Plastic self-relieving curb inlet filter |
Jan. 18, 2000 |
| 5830349 |
Flow inverter for filters |
Nov. 3, 1998 |
| 5748694 |
Fuel bundle filter for a nuclear reactor fuel bundle assembly |
May. 5, 1998 |
| 5733443 |
Inside to outside flow filters |
Mar. 31, 1998 |
| 5584314 |
Self-cleaning inlet head for a fluid |
Dec. 17, 1996 |
| 5296134 |
Filtration structure for fluid flow radially through cylindrical configuration defined by stack of serrated wafers |
Mar. 22, 1994 |
| 5281331 |
Radiator fluid filter |
Jan. 25, 1994 |
| 5174892 |
Permanent fuel filter |
Dec. 29, 1992 |
| 4961846 |
Collapsible filter for a fluid power apparatus |
Oct. 9, 1990 |
| 4935129 |
Closure device for a scupper drain |
Jun. 19, 1990 |
| 4834873 |
Combined reverse osmosis unit and water inflow control valve for a water purification system |
May. 30, 1989 |
| 4774730 |
Toilet bowl splash-proof device |
Oct. 4, 1988 |
| 4743365 |
Valve filter mechanism |
May. 10, 1988 |
| 4734269 |
Venous reservoir bag with integral high-efficiency bubble removal system |
Mar. 29, 1988 |
| 4702828 |
Drain pipe animal guard |
Oct. 27, 1987 |
| 4697617 |
Pressure relief filter and valve and cryopump utilizing the same |
Oct. 6, 1987 |
| 4650572 |
Filter device having baffle retainer for deflecting fluid flow and preventing filter clogging |
Mar. 17, 1987 |
| 4610270 |
Pilot-operated valve with integral filter |
Sep. 9, 1986 |
| 4604195 |
Filter press for thickening cellulose pulp or sludge |
Aug. 5, 1986 |
| 4517083 |
Filter device having relief valve for use in power steering system |
May. 14, 1985 |
| 4459208 |
Filter system for a power transmitting device |
Jul. 10, 1984 |
| 4435287 |
Apparatus for filtration of lubricating oil for an internal combustion engine |
Mar. 6, 1984 |
| 4428834 |
Fluid filter with integral viscous damper |
Jan. 31, 1984 |
| 4356087 |
Rodent barrier device |
Oct. 26, 1982 |
| 4339331 |
Crosslinked starches as depressants in mineral ore flotation |
Jul. 13, 1982 |
| 4183812 |
Fluid filtering device |
Jan. 15, 1980 |
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