U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

British merchant Peter Durand invented the tin can in 1810.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 210/137 - Maintaining stream pressure or flow


Subclass of Class 210 - Liquid purification or separation
Definition: Apparatus to regulate pressure of or rate of flow of a liquid.
No. of patents: 412
Last issue date: 04/17/2012


1                      
NumberTitleIssue Date
8157990Sprayer for at least one fluid
One exemplary embodiment can be a sprayer for distributing at least one fluid in a vessel. The sprayer can include a first member having a first surface and a second surface forming at least one aperture there-through. Generally, the at least one aperture is skewed ...
04/17/2012
8038875Treatment apparatus for ship ballast water
A practical treatment apparatus for ship ballast water, which can kill aquatic organisms contained in the ballast water, is provided by being easily incorporated in an existing ballast-water system piping in a ship. In a branch pipe 131 branched from the exis...
10/18/2011
8029664Wash filter with wash velocity control cone
A variable wash flow filter assembly includes a wash velocity control cone movable between a minimal position and a maximum position. ...
10/04/2011
8002976Magnetic separation filtering and cleaning apparatus
A magnetic separation filtering and cleaning apparatus for adding flocculant and magnetic powder to raw water containing pollutant particles to form magnetic floc in treated fluid and separating and removing the magnetic floc from the treated fluid, comprising: a ma...
08/23/2011
7507331Dispensing system
A dispenser system that takes high pressure fluid such as a high pressure water source and reduces the volume flow of the high pressure water as it flows into a dispenser with the dispenser having a low pressure outlet, which offers negligible fluid resistance in co...
03/24/2009
7438801Compact personal water purification device
A lightweight, portable, water purification device can be used to recover potable water from any water source. The manually operated device, requires no external power, is very lightweight, and removes salt and other impurities from source water while also disinfect...
10/21/2008
7435340Wastewater treatment system
This disclosure describes wastewater treatment systems and methods of treating wastewater. In one exemplary method, a wastewater is split into first and second wastewater fractions. The first fraction is delivered to a membrane bioreactor, which may produce an efflu...
10/14/2008
7419587Water purification device
A water purification device includes a fluid pump, a diaphragm unit having a diaphragm, which separates a primary side from a secondary side, and a consumer having a pressure requirement. The fluid pump is connected with the primary side and the consumer is connecte...
09/02/2008
7410568Sludge treatment
An apparatus for treating sludge, comprises a press for dewatering the sludge, a compaction device for receiving and compacting sludge dewatered by the press, a shredder for receiving and shredding sludge compacted by the compaction device, and a tube conveyor for c...
08/12/2008
7410587Liquid handling for filtration and preparative chromatography
A method and system are provided for high-precision separation of pharmaceutical or biotechnology liquids. The separation can be in accordance with direct flow filtration, tangential flow filtration or preparative chromatography. Movement of the pharmaceutical or bi...
08/12/2008
7407585Water purification system and methods, and module for the system
The invention relates to a method and a system for purifying water whereby: the water to be purified is pressurized (13); a pressurized flow of said water is directed onto at least one selective permeability...
08/05/2008
7381324Hydromechanical driving device
A hydromechanical driving device generates forward-pushing movements of a band-shaped filter material according to the pressure prevailing in the fluid to be filtered to operate band filter devices. The hydromechanical driving device includes a hydraulic accumulator...
06/03/2008
7367346Method for cleaning hollow tubing and fibers
Hollow porous fibers containing adhered contaminants are cleaned to remove the contaminants by backflushing a liquid to fill the pores, and adding a flow of gas so as to form a two-phase mixture of gas and bubbles of liquid that can scrub the fibers, loosening the c...
05/06/2008
7340845Evaporation apparatus
An evaporation apparatus 10 is shown in the form of an inflatable elongate plastic tube 12 that is fitted with fluid control means in the form of an inlet gas fan 14 and a gas outlet hole 16. The capacity of the inlet gas fan 14 an...
03/11/2008
7338681Process to prepare a premium formulated fried egg
The present invention relates to the formulation and process for preparation of a fried egg product which may be frozen for future heating within a microwave or other oven for consumption by an individual. Various ingredients are added and mixed to each of the liqui...
03/04/2008
7338606Arrangement and method for maintaining a minimum flow velocity in the coolant return of a machine tool coolant filtration system
An arrangement and method for maintaining a minimum flow velocity in return piping receiving dirty coolant from a plurality of machine tools receiving filtered coolant from a filter apparatus. A bypass line diverts clean coolant into the return piping via a pressure...
03/04/2008
7329310Filter module
The invention relates to a filter module having a module housing and at least one filter element. The filter module has at least one inlet opening, at least one filtrate outlet and a module housing having at least one joint line. ...
02/12/2008
7320759Sludge treatment method
A sludge treatment method allowing an improvement in a phosphorus recovery rate and sludge volume reduction by efficiently eluting phosphorus in the sludge. The sludge treatment method includes: a step of foaming a sludge-containing liquid by blowing an ozone-contai...
01/22/2008
7314572Methods of and apparatus for low-angle-tray settling with multi-zone configuration
Settleable-particles are separated from a dirty flow of settleable-particles and fluid by trays having a planar section configured with opposed ends and opposed sides, and an entrance edge and an exit edge on opposed ends. The section has opposed side edges, and an ...
01/01/2008
7306715Pump module
A pump module includes a fuel pump, a fuel filter having a filter casing and a filter element, a fuel outlet, and a pressure regulator. The filter casing covers at least a part of the outer circumference of the fuel pump, and accommodates the filter element. The fue...
12/11/2007
7303683Microorganism-removing filter medium having high isoelectric material and low melt index binder
A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo...
12/04/2007
7300575Portable filter system
A filter system for receiving an aqueous-based fluid contaminated with particles and emulsified contaminant oil, removing the particles, and separating the emulsified contaminant oil from the aqueous-based fluid includes a filter media for receiving the aqueous-base...
11/27/2007
7294278Method for oxygenating wastewater
A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo...
11/13/2007
7291267Molecular separator
The present invention discloses a method and apparatus for separating particles and dissolved matter from a fluid stream. Specifically, the present invention includes a first pressure source which transports untreated fluid into a separator annulus with a filter ele...
11/06/2007
7288279Formulated fried egg product
The present invention relates to the formulation and process for preparation of a fried egg product which may be frozen for future heating within a microwave or other oven for consumption by an individual. Various ingredients are added and mixed to each of the liqui...
10/30/2007
7288191Sludge treatment apparatus
A sludge treatment method allowing an improvement in a phosphorus recovery rate and sludge volume reduction by efficiently eluting phosphorus in the sludge. The sludge treatment method includes: a step of foaming a sludge-containing liquid by blowing an ozone-contai...
10/30/2007
7288197Biological membrane filtration system for water treatment and a water treatment process
The present invention discloses a biological membrane filtration wastewater treatment system including a porous biological filtration bed zone and a membrane separation zone. The porous biological filtration bed zone has the dual function of providing biological tre...
10/30/2007
7279215Membrane modules and integrated membrane cassettes
The invention features integrated membrane assemblies for selectively transferring a constituent to or from a fluid. The assemblies include two or more flat sheet membrane elements and at least one common manifold connected to the interior regions of the membrane el...
10/09/2007
7270746Water treatment system for water animal feeding facility
A water treatment system includes a waste collection arrangement and a waste disposal arrangement. The waste collection arrangement is disposed in a pond for swirling the water to form a funnel-shaped water vortex so as to collect a waste contained in the water of t...
09/18/2007
7255141Beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage
A beverage bottling plant for filling bottles with a liquid beverage filling material, a container filling plant container filling machine, and a filter apparatus for filtering a liquid beverage. The filter apparatus has a plurality of filter chambers which are each...
08/14/2007
7256882Photometer device and method
A photometer device including an inlet passage for receiving a fluid such as an aerosol at a specified flow rate, an outlet passage separated from the inlet passage by a gap, and a radiation passage across the gap. The flow rate and the significant dimension of the ...
08/14/2007
7244357Pumps for filtration systems
Improvements in product water throughput from a reverse osmosis (RO) membrane filter achieved by thinner feed spacers in the RO element, enhanced recovery (ratio of permeate to feed), pressure recovery of the retentate fluid pressure opposing the feed water pressure...
07/17/2007
7241469Formulation and process to prepare a pre-formed filing unit
The present process relates to a formulation for a food product and preparation of a pre-formed filling unit for the provision of a consumable food product containing eggs, which may be refrigerated and/or frozen for future heating within a microwave oven for consum...
07/10/2007
7214315Pressure exchange apparatus with integral pump
A pressure exchange device is provided that utilizes an integral high pressure boost pump that is in fluid communication with a pressure exchange unit. An optional low pressure boost pump unit may also be provided. The pressure exchange unit comprises a rotating rot...
05/08/2007
7198713Installation for the removal and the deactivation of organisms in the ballast water
Installation for the removal and the deactivation of organisms in the ballast water, with the following characteristic features: a first feed pump for conveying the ballast water, an equipment for gravity precipita...
04/03/2007
7195707Apparatus for determining weight and biomass composition of a trickling filter
In one embodiment, a filter media tower assembly is provided comprising a first portion and a second portion, wherein the first portion is suspended within the second portion. The first portion is a removable media tower or cage for holding filter media, whereas the...
03/27/2007
7189306Process of treating lignocellulosic material to produce bio-ethanol
This invention relates to a process of treating a lignocellulosic material to produce bio-ethanol. The process includes the steps of: (a) exposing the lignocellulosic material to conditions including a pH not less than about 8, and steam at a first pressure, to prod...
03/13/2007
7189325Method and device for desalting water
The invention pertains to a method and a device for desalting water by reverse osmosis, particularly for desalting seawater, in which saltwater is introduced under a first pressure into a pressure-compensation device and conducted from pressure-compensation device a...
03/13/2007
7186331Monitoring unit for monitoring the condition of a semi-permeable membrane
The invention concerns a monitoring unit [10] for monitoring the condition of a semi-permeable membrane [24] in a water purification system, and particularly the condition of spiral membrane in a reverse osmosis water purification system. The monitorin...
03/06/2007
7182856Stormwater treatment train
A system is provided for treating runoff water in which there is a separator and a filter for cleaning the water. A reservoir is provided to hold large quantities of water during prolonged rainstorms. The output of the reservoir is fed to the filter. The rate of flo...
02/27/2007
1                      
 
Sign InRegister
Username  
Password   
forgot password?