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Patent No. 5823572

Self Defense Weapon With Memo

A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.

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Class 210/321.87 - Cylindrical membrane


Subclass of Class 210 - Liquid purification or separation
Definition: Apparatus wherein said semipermeable membrane comprises
No. of patents: 224
Last issue date: 06/01/2010


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NumberTitleIssue Date
7727394System and method of fluid filtration utilizing cross-flow currents
A filter system and method of filtering a feed liquid utilizing a combined plurality of filter assemblies. Each filter assembly includes a filter housing, a filter cartridge and a spiral passageway for imparting secondary flow currents, particularly Dean-Flow curren...
06/01/2010
7449110Filter and filter module
The filter 1 of the present invention has at least two filter elements 2 contained in the casing 4, which are connected in series in such a state as interposing the first sealer 5 between them. ...
11/11/2008
7390653Culture chamber for biologicals
The culture chamber of the present invention has a fluid-filled culture compartment in which cells, tissues and other biologicals are cultured. The culture compartment is transversed by one or more molecular weight cut-off membranes attached to a membrane carrier as...
06/24/2008
7374673Channeled polymer fibers as stationary/support phases for chemical separation by liquid chromatography and for waste stream clean-up
Polymer fibers having a novel cross-sectional geometry are used as stationary phase materials for liquid chromatography separations. Fibers of 20 to 50 micrometer diameters have surface-channel structures extending their entire lengths. Bundles of fibers having this...
05/20/2008
7371567Bioreactor, particularly for bioartificial organs
A bioreactor for bioartificial organs, comprising a closed and substantially tubular body inside which there is a containment cavity; an animal and/or human cell culture and support structure, accommodated in the cavity and suitable to be crossed by a fluid to be pr...
05/13/2008
7347937Perfluorinated thermoplastic filter cartridge
A filtration cartridge having a housing with an inlet and an outlet and a filtration membrane contained within the housing and located between the inlet and the outlet is described. The membrane is sealed in such a manner that all fluid must flow through the membran...
03/25/2008
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
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
7282145Oil filter for construction machine
The prevent invention provides an oil filter comprising a filter element housed in a casing, the filter element being formed of two or more cylindrical element pieces piled on top of another in the height direction and attachably and detachably connected through con...
10/16/2007
7250108Method for measuring the local hydraulic permeability of a sub-group of hollow fibre of a bundle of hollow fibres
A method is provided for measuring the local hydraulic permeability, Lpi, of a sub-group of hollow fibres of a bundle of hollow fibres mounted in a tubular casing. The method comprises a step of placing the casing containing the bundle in a vertical position, the la...
07/31/2007
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
7208091Assembly for withdrawing and filtering partial volumes of process fluid
A method for withdrawing and filtering a partial volume of a particle-containing process fluid enclosed in a container, a combination of a container enclosing a process fluid and an assembly for continuously withdrawing and filtering a partial volume of a process fl...
04/24/2007
7189322Charged membrane
The present invention provides a hydrophilic charged microporous membrane comprising a porous hydrophobic substrate and a coating comprising a charge-providing agent. The present invention further provides a hydrophilic charged membrane comprising a porous hydrophob...
03/13/2007
7179379Apparatus for separating particulates from a suspension, and uses thereof
The present invention includes an apparatus for separating particulates from a fluid in a suspension, comprising: a housing defining a frusto-conically shaped inner chamber with an inner wall, an inlet and a first outlet communicating with the chamber, and a second ...
02/20/2007
7172696Radial dispersion mass transfer device having a semi-permeable tubular hollow fiber membrane wound around a porous core
A mass transfer device having a fluid permeable core wound with many stands of a hollow fiber. A bulk fluid enters the interior of the core, passes through the side wall of the core, and along the outer surfaces of the hollow fibers. A baffle positioned in the cente...
02/06/2007
7156239Filter unit for freezable liquids, particularly for a metering unit of an exhaust gas treatment device
A filter unit for liquids undergoing freezing for a metering unit of an exhaust gas treatment unit has a housing having an outer member and a lid member. At least one filter insert is arranged in the housing. An elastically deformable casing part is provided that su...
01/02/2007
7153424Apparatus for purifying water
An apparatus for purifying water, that includes a frame, in connection with which is arranged a primary space for water to be filtered, secondary space for filtered water and a filter. The filter is arranged to filter water, that is driven by gravity from the primar...
12/26/2006
7150932Production of tubular fuel cells, fuel cell modules, base elements and ion exchanger membranes
The present invention relates to a composite system comprising an electrode and a membrane, which can be used as a fuel cell element or an ion-exchange membrane. ...
12/19/2006
7143526Method for drying a ceramic formed body by hot air
There is provided a method for drying a ceramic formed body by hot air, the formed body having a peripheral face and end faces constituting a columnar shape, and at least one through-hole extending in an axial direction and open at the end face, the formed body cont...
12/05/2006
7108791High-resolution virus removal methodology and filtration capsule useful therefor
The present invention provides a high-resolution membrane-based method for removing a virus from a manufactured protein-containing solution, the method being particularly characterized by its capacity to be performed quickly (i.e., as measured by flux) and efficient...
09/19/2006
7025212Plasma- or serum-collecting device
A plasma- or serum-collecting device with simple structure and easy to handle is provided. The device comprises a vacuum blood drawing tube accommodating a blood-filtering unit, wherein the vacuum tube contains a space above the blood-filtering unit to preserve bloo...
04/11/2006
7025881Filter arrangement for the separation of blood into plasma and cellular components and device for application thereof on the donor
The invention relates to a filter arrangement for the separation of blood into plasma and cellular components, comprising at least one filter element with an inlet line and an outlet chamber in a closed housing, separated by a fine pore membrane. The inlet chamber i...
04/11/2006
7022238Immersion type membrane filter
An immersion type membrane filter apparatus 200 is intended for obtaining filtrate by filtrating a fluid to be processed stored within a storage bath 150 and primarily includes a filtration membrane module 300 and an air bubbles supply device
04/04/2006
7018539Treatment of shipboard-generated oily wastewaters
A process and apparatus for treating oily wastewater, such as bilge water or ballast water, generated on a ship. The process uses a combination of a centrifugal separation step and a membrane separation step, such as an ultrafiltration step. The membrane separation ...
03/28/2006
7014765Filter comprising membranes made of hollow fibers
The invention relates to a filter comprising membranes made of hollow fibers in which the hollow fibers are arranged as a bundle in a tubular housing. The housing comprises an end cap on each of its ends, whereby the hollow fiber bundle is placed between the ends of...
03/21/2006
7011755Disposable vacuum filtration funnel with integral prefilter
A filtration funnel with integral prefilter usable for filtering fluids. The integral prefilter is disposed above the final filter which is sealed to the funnel. The prefilter may contain one or more layers of prefilter material, and is sealed to the funnel with one...
03/14/2006
7008540Ultrasonically cleaned membrane filtration system
A filtration system and a method of cleaning a particle and/or colloidal fouled filtration membrane are provided. The filtration system includes at least one filtration membrane disposed in a casing, and at least one ultrasonic transducer in direct contact with a fl...
03/07/2006
7005075Gas drive electrolytic cell
The present invention is directed to an electrolytic cell that is completely sealed during the electrolysis operation during production of oxidant. Gasses generated within the electrolysis operation, primarily hydrogen that is liberated at the cathode surface, incre...
02/28/2006
6984327System and method for separating heavy isotopes of hydrogen oxide from water
An apparatus and method for separating heavy isotopes of hydrogen from contaminated water. The apparatus includes a treatment chamber with an elongated hollow core fiber (HCF) extending within the chamber. A reservoir holds contaminated water mixed with beads formed...
01/10/2006
6899811Immersed membrane apparatus
An apparatus for filtering a liquid in a tank has a plurality of elements and a frame for holding the elements while they are immersed in the liquid. The elements have a plurality of hollow fibre membranes attached to and suspended between an upper header and a lowe...
05/31/2005
6858146Artificial liver apparatus and method
Artificial liver devices and methods for using the devices to purify a biological fluid are disclosed. The methods include the use of living hepatocytes (23) which are either unattached or attached to inert carriers and suspended in a cell culture medium whic...
02/22/2005
6758971Self-priming dialysis filter
A medical filter (11) is constructed as a container with an interior volume in open fluid communication with a patient connection element (31) and a transport connection element (39). Filter support structure (13) mounted within the inter...
07/06/2004
6749752System for removing oil from foodstuffs using a membrane filter
A process and system for extracting a solute from a solid material, such as oil from oil-bearing foodstuffs, utilize a substantially tubular membrane filter to separate a mass of the extracting medium and the foodstuffs into a miscella and foodstuffs of reduced oil ...
06/15/2004
6656360Fibrous system for continuously capturing metals from an aqueous stream
A unique filtration device (10) which removes metal ions from a contaminated aqueous stream through the use of partially hollow wicking fibers (20) impregnated with a selected liquid (18) which can capture the metal ions in the aqueous stream. The wicking...
12/02/2003
6632356Separation membrane end cap
A separation end cap adapted for connecting adjacent separation elements is provided. The end cap may be located at the distal ends of a separation element and is adapted for connection with a permeate tube located within the separation element. In one em...
10/14/2003
6632359Blood purifying apparatus
A blood purifying apparatus having excellent purification performance (elimination of low molecular proteins, etc.) and being contaminated with little endotoxins flowing from the dialyzate side is described. Attention was paid to the solute permeability c...
10/14/2003
6592759Gel potting method and method to reduce twinning for filtering hollow fiber membranes
To pot membranes in a header, a dense, viscous liquid, suspension or, preferably, a thixotropic, water soluble gel, is placed in a header pan in space reserved for a permeate channel. A plurality of hollow fiber membranes are collected together and their ...
07/15/2003
6579457Liquid transport member for high flux rates between a port region and an opening
The present invention is a liquid transport member with significantly improved liquid handling capability, which has at least one bulk region and a wall region that completely circumscribes said bulk region, and which comprises a membrane port region and ...
06/17/2003
6491819Method and apparatus for filtering suspension of medical and biological fluids or the like
An apparatus is disclosed for separating a suspension comprising at least two types of particles which are differently sized or shaped and in which the first type of particle may be deformable at a relatively lower force or faster rate than the second typ...
12/10/2002
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