Class 261/122.1 - Submerged screen

Subclass of Class 261 - Gas and liquid contact apparatus
Definition: Apparatus including a screen through which gases pass and
No. of applications: 20
Last issue date: 01/26/2012

Application No.	Application Title	Issue Date
20120018910	Apparatus to add gas from liquid state source to a dry carrier gas at low pressure This relates to an apparatus to add gas from liquid state source to a dry carrier gas at low pressure and delivery method....	01/26/2012
20110248414	AERATION DIFFUSER ASSEMBLY END SEAL An aeration assembly includes an end fitting having a top piece for attachment to a diffuser member. A gasket extends beneath the top piece. The aeration assembly may include a diffuser member with the end fitting. In one embodiment, the diffuser member has a hollow con...	10/13/2011
20110198764	AERATION SYSTEM WITH ANTIMICROBIAL PROPERTIES Aeration pipe for diffusion of a gas into a liquid medium, the pipe having a flexible microporous tubular wall of thermoset polymer particles and a thermoplastic binder for melt bonding said thermoset polymer particles and dispersing an antimicrobial compound substantia...	08/18/2011
20110198763	DIFFUSER MEMBRANES WITH MODIFIED ELECTRICAL PROPERTIES A diffuser membrane for use in a wastewater treatment application comprises an additive or coating operative to substantially reduce the ability of at least a portion of the diffuser membrane to buildup static charge. Aeration efficiency and contamination resistance are...	08/18/2011
20110169176	ADAPTERS AND METHODS FOR AERATION APPLICATIONS Adapters and methods related to aeration applications. An adapter for use in water treatment applications. The adapter includes a generally circular member for conversion of an aeration diffuser holder from a membrane diffuser element holder to a ceramic diffuser elemen...	07/14/2011
20110132847	METHODS AND APPARATUS FOR WASTEWATER TREATMENT Wastewater is treated by providing a distribution conduit and providing a diffuser assembly. An aperture is created in the distribution conduit having an initial minimum diameter. The diffuser assembly, in turn, comprises a diffuser membrane in fluidic communication wit...	06/09/2011
20110057334	DEVICE FOR INSERTING GAS BUBBLES INTO A LIQUID The invention relates to a device (1) for inserting gas bubbles into a liquid, comprising a base plate (2) with a gas supply opening (3) which is connected to a gas supply device (3) and closable by a valve, wherein a valve element (12...	03/10/2011
20110049047	GAS SPARGER FOR AN IMMERSED MEMBRANE A gas sparger produces an intermittent flow of bubbles even if provided with a continuous gas flow. The sparger has a housing to collect a pocket of gas and a conduit to release some of the gas from the pocket when the pocket reaches a sufficient size. Optionally, a cov...	03/03/2011
20100133709	DIFFUSER FOR AN AERATION SYSTEM A diffuser for an aeration system includes a base, a valve member, and a diaphragm. The diaphragm has a central portion, a peripheral portion, and a surrounding segment. The surrounding segment is interposed between the central portion and the peripheral portion, and in...	06/03/2010
20100032851	Fluorinated elastomeric gas diffuser membrane The present invention relates generally to a structure for a diffused aeration system. More particularly, the invention encompasses a diffuser membrane where at least a portion of the surface has been treated with at least one layer of fluorine, to form a fluorinated el...	02/11/2010
20090188672	Diverse Bubble Size Generation Method and apparatus for producing a bubble curtain with a diversity of bubble diameters for purposes such as suppressing surface-related multiple reflections in marine seismic surveys. Bubble generating elements are used that combine porous wall material with discrete ...	07/30/2009
20090166901	DISK DIFFUSER WITH IMPROVED SEAL A flexible membrane disk diffuser having an improved arrangement for sealing the membrane to the diffuser body. An enlarged sealing bead on the circumference of the membrane fits in an annular channel on the diffuser body. A retainer ring threads onto the diffuser body ...	07/02/2009
20090096117	RETRIEVABLE DIFFUSER MODULE WITH TRUSS CONSTRUCTION A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each header pipe is equipped with a truss for enhanced structural strength and resist...	04/16/2009
20090095692	RETRIEVABLE DIFFUSER MODULE WITH INTERNAL BALLAST/BUOYANCY CHAMBER A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each pipe is equipped with a smaller internal pipe arranged concentrically to provide...	04/16/2009
20090045122	Fine bubble diffuser membrane for water and wastewater treatment The present invention discloses a fine bubble diffuser membrane for wastewater treatment, and the tubular diffuser membrane includes a first breathing elastic material fixing layer, a porous elastic polymer laminated layer and a second breathing elastic material fixing ...	02/19/2009
20080251954	Strip diffuser Membrane strip diffusers are disclosed, useful for example in aerating wastewater in activated sludge plants. These diffusers have membranes, diffuser bodies comprising gas conduits and, in addition to the conduits, integral membrane supports elongated in the same gener...	10/16/2008
20080224337	DIFFUSER ASSEMBLY WITH BUOYANCY VESSEL A diffuser assembly with a buoyancy vessel and a chamber for buoyantly raising the diffuser assembly for maintenance work. The diffuser assembly has a support structure, diffusers connected to the frame, and a buoyancy vessel positioned on the frame, capable of alternat...	09/18/2008
20080156191	HOLLOW FIBER MEMBRANE CONTACT APPARATUS AND PROCESS Disclosed is a shell side contactor which is highly efficient for forming relatively high concentration of ozonated water comprising a shell containing perfluoroalkoxy resin thermoplastic hollow fibers used as a porous barrier. The perfluoroalkoxy resin comprises a copo...	07/03/2008
20080143002	Splashguard and Inlet Diffuser for High Vacuum, High Flow Bubbler Vessel The present invention is a bubbler having a diptube inlet ending in a bubble size reducing outlet and at least one baffle disc positioned between the outlet of the diptube and the outlet of the bubbler to provide a narrow annular space between the baffle disc and the wa...	06/19/2008
20080001315	IMPROVED ENGINE CARBURETION An emulsion tube for a carburetor is formed with a porous wall surrounding an inner passage, wherein air travels about one side of the wall and fuel travels about the opposite side, with air being supplied through the pores to aerate the fuel (with the aerated fuel then...	01/03/2008

PatentStorm

Quotables

PatentStorm News

Class 261/122.1 - Submerged screen