Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8182683 | Portable fluid dispenser A portable fluid dispenser for transporting and optionally filtering a stored quantity of fluid as it is expelled from the dispenser is provided herein as having a dispenser body with a port and an aperture in communication with a fluid storage chamber with the aper... | 05/22/2012 |
| 8142654 | Water bottle with filter A disposable and recyclable water bottle formed of a non-toxic plastic composition includes a flexible sidewall, a neck with an open top and cap, and an open bottom end. A filter cartridge is received within the open bottom and contains activated carbon sandwiched b... | 03/27/2012 |
| 8097159 | Pressure filter type water kettle A pressure filter type water kettle includes a kettle body for holding water, a pressure device holder mounted in the kettle body to close the top open side of the kettle body, a filter fastened to the bottom side of the pressure device holder and dipped in water in... | 01/17/2012 |
| 8021548 | Lattice structure, use of the lattice structure and vessel with lattice structure A lattice structure for the passage of a first medium against a second medium with transverse webs and longitudinal webs, lattice openings with a clear width of ≦300 μm being arranged between the transverse webs and the longitudinal webs. On at least one side of ... | 09/20/2011 |
| 7438801 | Compact 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 |
| 7416087 | Interiorly disposed filter for portable fuel container The present disclosure concerns a fuel filter assembly that can be easily installed on a portable fuel container, such as a race fuel jug or utility jug. The assembly includes a fuel filter positioned in the fuel container to filter fuel that is being poured or othe... | 08/26/2008 |
| 7387502 | Method and apparatus for elimination of gases in pump feed/injection equipment A pumping apparatus for pumping a liquid from a source to a target including a motor, a first pump driven by the motor, a second pump driven by the motor and a separator in fluid communication with the first and second pump for separating a liquid received from a so... | 06/17/2008 |
| 7371322 | Filtration system and dynamic fluid separation method A filtration system is provided with filter media operable to remove solids, particulate and colloidal matter from a process fluid. The filtration system may include one or more porous membranes which are anchored or secured on their periphery with a large open work... | 05/13/2008 |
| 7335312 | Centrifuge with combinations of multiple features A centrifuge with combinations of multiple features is disclosed. In one aspect, a centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a sleeve. The fluid separation wall rotates around the axis of rotation.... | 02/26/2008 |
| 7320750 | Centrifuge with controlled discharge of dense material A centrifuge with controlled discharge of dense materials disclosed. A centrifuge includes a fluid separation wall placed within a sleeve to form a containment zone therebetween. The fluid separation wall aligns and rotates parallel to an axis of rotation. A recepta... | 01/22/2008 |
| 7303683 | Microorganism-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 |
| 7294274 | Filtration system with enhanced cleaning and dynamic fluid separation A filtration system is provided with filter media operable to remove solids, particulate and colloidal matter from a process fluid. Acoustic, vibration and sonic energy may be used to clean associated filter media to allow substantially continuous filtration of proc... | 11/13/2007 |
| 7284676 | Lid with a filter and the filter therefor A lid for a cup is provided with a filter fitted into a sipping hole which filters solid objects, such as tea leaves, mixed into the beverages so that pure beverage can be drunk. In the preferred embodiment, the filter component is a coil spring 14 having hoo... | 10/23/2007 |
| 7282147 | Cleaning hollow core membrane fibers using vibration A filtration system is provided with hollow membrane filter elements operable to remove solids, particulate and colloidal matter from a process fluid. Acoustic, vibration and ultrasonic energy may be used to clean exterior portions of the hollow membrane filter elem... | 10/16/2007 |
| 7275652 | Cup lid apparatus A cup lid for use with a drinking cup containing a liquid, the drinking cup having a base and a sidewall extending upwardly from the base, the sidewall including an inner surface, a top end, and a rim extending along the circumference of the top end. The cup lid com... | 10/02/2007 |
| 7244357 | Pumps 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 |
| 7226534 | Electric jar pot with ozone disinfection function The present invention discloses an electric jar pot with ozone disinfection function. The device includes a jar pot with an ozone generator and an ozone conveying device. By the power source connected with the device, the ozone generator produce the ozone gas while ... | 06/05/2007 |
| 7226536 | Portable water filtration device A portable water filtration device includes a liquid-tight filter container and a filtration device mounted in the liquid-tight container. The filtration device includes an inlet opening extending through one of the walls and a first filtration device in liquid tran... | 06/05/2007 |
| 7186375 | Ozone containing fluid system for chemical and/or biological warfare agents A method and apparatus for neutralizing biological and/or chemical warfare agents using an ozone-containing solution. The ozone-containing solution is produced by combining ozone-containing gas with an ozone vehicle, such as an organic solution. The ozone-vehicle pr... | 03/06/2007 |
| 7118678 | Portable ozone treatment for swimming pools A portable battery-powered ozone generator, or ozonator, contained in a waterproof housing with an air intake and an ozone discharge conduit diffuses ozone directly into a body of water in a pool, pond or tank. The ozone generator and housing can be part of (1) a bu... | 10/10/2006 |
| 7090779 | Manually operable water purifying device A manually operated water purifying device which includes a manually moveable operating member that pumps unpurified water into a conduit where it is exposed to purification by an electrically operated UV-C lamp and then dispensed from a portable container, and the ... | 08/15/2006 |
| 7087805 | Use of an ozone containing fluid to neutralize chemical and/or biological warfare agents A method and apparatus for neutralizing biological and/or chemical warfare agents using an ozone-containing solution. The ozone-containing solution is produced by combining ozone-containing gas with an ozone vehicle, such as an organic solution. The ozone-vehicle pr... | 08/08/2006 |
| 7077951 | Vessel for heating and filtering water A vessel or kettle for holding water has a first chamber from which water can be pumped though a filter into a second chamber. The pump can be gravity, manual or power operated. Cold water from the first chamber can be pumped though an annular filter of ion exchange... | 07/18/2006 |
| 7044343 | Gravity flow water filtration backpack A backpack containing a gravity flow water filtration system. The backpack incorporates a compartment at its top to hold a reservoir of untreated water, and a compartment at the bottom to hold a reservoir for filtered water. A tube and filter connect the two compart... | 05/16/2006 |
| 7005075 | Gas 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 |
| 6919025 | Portable drinking device A portable drinking device is provided that can be filled with municipal type water, and which will remove impurities (e.g. chlorine) from that water. The portable drinking device is designed so that a person can carry around a single drinking device, fill that drin... | 07/19/2005 |
| 6919022 | Portable drinking device with integral H202 dispenser A new and useful approach to cleaning raw water or other raw liquid is provided. A metered amount of stabilized hydrogen peroxide is added to the raw water or other liquid, to clean the raw water or other liquid. In one particularly useful embodiment of the present ... | 07/19/2005 |
| 6780316 | Water filtering apparatus with element support A drinking water filter assembly has a filter cartridge which includes a filter element contained in a pressure vessel for unitary disposal, the cartridge received on a base containing attachment fittings for ease in installation and replacement with limited exposur... | 08/24/2004 |
| 6767453 | Portable water purifier with ultraviolet light source A portable container is disclosed, provided a means for the purification of a fluid by ultraviolet radiation. The container houses the liquid and mates with the ultraviolet light source, which is powered by a battery attached thereto. Additionally, an ultraviolet li... | 07/27/2004 |
| 6736966 | Portable water disinfection system A portable oxidant generator for generating a chlorine or chlor-oxygen solution suitable for sterilizing contaminated drinking water, thereby providing a water disinfection system and potable water. The oxidant generator includes an electrolytic chamber and a power ... | 05/18/2004 |
| 6733669 | Water filter bottle The present invention discloses a personal water purification system providing a watertight polymeric container 12 having a removable, threaded unfiltered water fill cap 18 that provides access through port 28 to an upper unfiltered water receiv... | 05/11/2004 |
| 6582665 | Universal collection and transfer system A universal collection and transfer system which includes a collection container, a second container, and a transfer device mateable with both the collection container and the second container and including a hollow shaft which pierces the collection cont... | 06/24/2003 |
| 6524475 | Portable water disinfection system A portable oxidant generator for generating oxidants suitable for sterilizing contaminated drinking water, thereby providing potable water. The oxidant generator optionally comprises an electrolytic cell and a power supply or source for powering the gener... | 02/25/2003 |
| 6514405 | Portable water purifier with ultraviolet light source A portable water purifier (10) is disclosed herein. The portable water purifier (10) includes a container (11) for containing the liquid and mates with an ultraviolet light source (18) for purifying the liquid with ultraviolet radiation.... | 02/04/2003 |
| 6478956 | Manually pressurized water filtering container A manually pressurized water filtering container comprising an enclosure having a compressible wall terminating at an open neck and a removable, water permeable filter module and a cap adapted for receiving the filter module and for engaging and sealing t... | 11/12/2002 |
| 6436283 | Portable rainwater collecting and purifying system A self-contained, portable rainwater collecting and purifying system for collecting, filtering and disinfecting rainwater or other precipitation primarily for drinking purposes. In a preferred embodiment the portable rainwater collecting and purifying sys... | 08/20/2002 |
| 6432305 | Water filtering kit A water-filtering kit has a filter container (1, 28, 32, 37, 41). A water filter (8) is positioned on an interior portion of the filter container. A filter-inlet connection (9) on the water filter is positioned in tube-access proximity to an inlet-tube ap... | 08/13/2002 |
| 6394313 | Household grease storage container A spill-proof, heat-resistant container to hold used left-over cooking oil and grease. The container comprises an outer container, an inner container conformably shaped and dimensioned to be received within the outer container, and a removable lid for clo... | 05/28/2002 |
| 6379544 | Portable device for supplying filtered water A portable device for supplying filtered water includes a container, a cap member, a partitioning member, a filter member, an intake tube, a piston pump unit, and a spout. The partitioning member divides an interior of the container into an outer chamber ... | 04/30/2002 |
| 6355168 | Cooking oil storage and filtering system A cooking oil storage and filtering system for filtering and storing used cooking oil prior to reuse. The cooking oil storage and filtering system includes an housing assembly with a funnel portion, an upper portion, a bottom portion, a pair of track memb... | 03/12/2002 |
