Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7455764 | Apparatus for continually skimming off a top layer of a body of liquid An apparatus for continually skimming off a top layer of a body of liquid, comprising: a self adjusting container for collecting a top layer, the container being adapted to seek an effective balanced position dependent on the liquid level for collecting the top laye... | 11/25/2008 |
| 7442292 | Liquid visual display A display provides an indication of the remaining useful life of a filter element by providing a visible level of fluid in the display corresponding to the remaining useful life. The fluid level is adjusted by a valve responsive to a pressure differential across the... | 10/28/2008 |
| 7442297 | Remote water dispensing device and methods for operating such remote water dispensing devices A water dispensing device for dispensing water at a location remote from a water purification unit and methods of using the water dispensing device and methods of operating such remote water dispensing devices. The water dispensing device includes a dispensing gun, ... | 10/28/2008 |
| 7438812 | Filter element and method of making A filter element (10) is provided which can be used to remove microsize contaminant particles (i.e., about 0.5 μm to about 25.0 μm) from aviation fuel. The filter element (10) includes a cylindrical pleated filter media (14) and an exoskeleton... | 10/21/2008 |
| 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 |
| 7434698 | Two fiber filtration material A filtration material comprising a blend of at least two types of fibers: (a) polypropylene fibers and (b) either acrylic or modacrylic fibers. In a preferred embodiment, the blend contains about 50 weight percent polypropylene fibers and about 50 weight percent mod... | 10/14/2008 |
| 7435341 | Pressure relief valve for filter assembly An oil filter assembly includes a pressure relief valve adaptable to wide variety of environments while maintaining ease of assembly and manufacture. The pressure relief valve of this invention also occupies a minimal amount of space within the filter assembly as co... | 10/14/2008 |
| 7431039 | Cleaning facility for tubing system of vehicle A cleaning facility for cleaning tubing systems includes a reservoir having a chamber to receive flush fluid, a pipe coupling the reservoir to the tubing systems, to allow the flush fluid to flow from the reservoir into the tubing systems to flush the tubing systems... | 10/07/2008 |
| 7419589 | Adaptable water purification apparatus A water purification apparatus connected to a water system includes a hopper for holding chemical tablets on a perforated bed and an underlying basin. A spray head is detachably connected to the perforated bed and sprays water onto the tablets and parallel to the pe... | 09/02/2008 |
| 7419587 | Water 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 |
| 7416657 | Oil water coalescing separator An oil water coalescing separator has a coalescing chamber containing oil coalescing media. The separator is preferably substantially transparent so that the thickness of the band of coalesced tramp oil can be visually discerned at a glance. The separator preferably... | 08/26/2008 |
| 7407573 | Quick countercurrent-type water purifier A quick countercurrent-type water purifier configured with two filters, two motors, a control circuit, a purified water storage tank and a waste water tank, wherein a pipe extends from the waste water tank. Moreover, a raw water inlet pipe connects to the pipe throu... | 08/05/2008 |
| 7398887 | Product and method of forming successive layers of face-to-face adjacent media with calculated pore size A filter media product and method of making the same wherein at least two independent filter media thicknesses of differing coarse and fine pore sizes are held in face-to-face relationship with the pore sizes being so calculated that the overall average pore size of... | 07/15/2008 |
| 7396455 | Brine container with filter system Brine container, at which a suction filter (24) is disposed, in which the brine container has a circulating filter system (28), which has a filter (34) and a pump (30), with which the brine (22) can be pumped through the circulatin... | 07/08/2008 |
| 7393455 | Method and apparatus for filtering pressurized fuel A method and apparatus for filtering pressurized fluids, wherein a fluid level provides a visual indicator as to the general condition of the filter element. The present invention provides a vertical housing having a fluid inlet for communicating the fluid into said... | 07/01/2008 |
| 7390443 | Method of forming successive layers of face-to-face adjacent media with calculated pore size A filter media product and method of making the same wherein at least two independent filter media thicknesses of differing coarse and fine pore sizes are held in face-to-face relationship with the pore sizes being so calculated that the overall average pore size of... | 06/24/2008 |
| 7384543 | Circuit for extracorporeal blood treatment and flow-inverting device utilized therein A circuit is disclosed for extracorporeal blood treatment in which a flow-inverting device is interposed between a blood treatment unit and a blood pump placed on an artery branch connected with a vascular access of a patient. The flow-inverting device allows the bl... | 06/10/2008 |
| 7381324 | Hydromechanical 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 |
| 7381325 | Spa treatment system A spa treatment system for maintaining spa water includes a spa that has a peripheral wall bounding an inner portion having water therein. An outlet and an inlet are each fluidly coupled to the inner portion. A water testing assembly is in fluid communication with t... | 06/03/2008 |
| 7374668 | Valve automated in-situ cleaning system for oil water separator An oil/water separator tank having intake, discharge and vent fittings is conditioned for in-situ cleaning of the oil separator plate stacks positioned therein by selective opening of manual valves connected to each of such fittings. When so conditioned by opening o... | 05/20/2008 |
| 7368054 | Apparatus to separate oil and debris from an aqueous fluid A separator to separate oil and debris from an aqueous fluid includes a container with a cover, the top portion of which includes a control panel access door. The separator draws an aqueous fluid with one or a plurality of skimmers that float on the aqueous fluid in... | 05/06/2008 |
| 7368053 | Membrane zeta potential measuring system The present invention discloses a membrane zeta potential measuring system which comprises a first measuring course and a second measuring course. The provided system calculates the zeta potential of the membrane pores based on a first potential drop measured from t... | 05/06/2008 |
| 7357869 | Method for making a mechanical interlock for filters The present invention provides a mechanical lock for securing one or more filters within a filtration device and methods for producing the mechanical lock. The use of an interference fit punch causes a portion of the inner surface of the wall to be skived and rolled... | 04/15/2008 |
| 7341669 | Filter methods to capture a desired amount of material from a sample suspension for monolayer deposition, analysis or other uses The present invention is a filter apparatus with methods to capture a desired amount of material suspended in a liquid or gas for monolayer deposition, analysis or other uses. Novel filter devices are employed to capture material which may be used for the purificati... | 03/11/2008 |
| 7338594 | Faucet filter with sight glass A faucet mounted filter device includes a horizontally disposed cylindrical part for housing a replaceable filter cartridge and a horizontally disposed arm part extending radially from the cylindrical part which has a connector on its upper side for releasable conne... | 03/04/2008 |
| 7335297 | Power aquarium cleaning/gravel vacuum A gravel vacuum, including a pump, a detachable suction base connected to the pump to which a suction tube can be attached, a filter connected to the suction base, a return assembly, at least one valve, and an alternate flow path. The pump impels a flow of water fro... | 02/26/2008 |
| 7329342 | Metallic particle trap bypass filter A metallic particle trap bypass filter is disclosed generally comprising a housing, a filter element disposed therein, an inflow chamber, an outflow chamber, a bypass valve connecting these chambers, and a magnet disposed in the outflow chamber. In some embodiments,... | 02/12/2008 |
| 7326334 | End-of-faucet filter Various embodiments of an end-of-faucet filter assembly connectable with a faucet on a standard sink and having a plurality of outlets corresponding with selectable modes of operation are disclosed herein. One mode of operation provides unfiltered, aerated water dis... | 02/05/2008 |
| 7314546 | Disinfectant system and method for the chemical treatment of wastewater A system for the chemical treatment of wastewater may be discharged in a night spray system, an on demand system or a dosing system. Tank 12 receives wastewater, and a discharge pump 16 pumps wastewater from the tank in the night spray system. A sensor... | 01/01/2008 |
| 7315250 | Electrical fluid activated switch An electrical field activated switch system includes a fluid container 14 having an aperture formed in a sidewall thereof. The floor of the primary tray 22 is positioned entirely beneath the fluid container and a secondary tray is positioned entirely w... | 01/01/2008 |
| 7311816 | Device for determining the residual liquid content of solids cakes in centrifuges A device for determining the residual liquid content of solids cakes in a centrifuge basket. The device includes two electrodes protruding through a wall of the basket and into the solids cake; a conductivity or capacitance measuring device (13) measuring the... | 12/25/2007 |
| 7309430 | Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methods A filtration assembly for filtering polymer fluids at varying flow rates includes at least two filter housing assemblies releasably attached to a filter support or main block. Polymer fluid is delivered to the filter housing assemblies via an inlet passage in the ma... | 12/18/2007 |
| 7309419 | Fluid diverter for a wastewater treatment system A device for diverting the flow of liquid in a wastewater treatment system in flow communication with effluent returning from a recirculating treatment section and in flow communication with a discharge line for removing a portion of treated effluent to a receiving ... | 12/18/2007 |
| 7306716 | Water treatment system A water treatment system has a battery rechargeable by a manual generator, thus eliminating the need for an external power source. The water treatment system uses the rechargeable battery to power a pump and a UV lamp. After the water passes through a filter, the UV... | 12/11/2007 |
| 7299931 | Liquid filter comprising air vents Liquid filter for a motor vehicle and method of venting the filter. The filter includes a venting arrangement adapted to vent air displaced from a filter. The venting arrangement has a first vent nozzle and a second vent nozzle. The first and second vent nozzles are... | 11/27/2007 |
| 7293660 | Filter assembly having a five-way valve A filter device includes four couplers attached to four sides, and a casing attached to bottom. A filtering material receptacle may be attached to the casing for filtering the water. A valve member is rotatably received in the housing, and includes six openings and ... | 11/13/2007 |
| 7282140 | Sump filter with filter element cartridge A sump filter assembly wherein a filter element that may or may not be removably disposed in a filter housing is sealingly engaged with the filter housing by way of a sealing member to separate the filter housing cavity between dirty and clean spaces. The filter ele... | 10/16/2007 |
| 7282145 | Oil 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 |
| 7273544 | Sludge extractor A sludge extractor with a receiving tank, on which a suction connection for a suction element, which draws in a sludge-containing liquid, and a discharge connection for discharge element, which discharges the sludge-containing liquid, are mounted, and with a motor f... | 09/25/2007 |
| 7273547 | External type filtration device The present invention relates to a filtering apparatus including a filter device externally hitched on a wall surface of an aquarium. A water pump pumps water stored in the aquarium into the filter device. The filter device is formed so that the water pumped from th... | 09/25/2007 |
