Famous Patents
In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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.
| Number | Title | Issue Date |
| 7316774 | Fluid treatment system A reverse osmosis water filtration system has a control housing that contains control components for the filtration system. The control housing may include control components for a membrane flushing system and/or feed water pressurization system for a permeate stora... | 01/08/2008 |
| 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 |
| 7244354 | Ozone irrigator This portable appliance can be used to clean teeth by liquid (water or solution) containing dissolved ozone, which is a potent oxidizer and germ killer. Preferably, its cleaning action is enhanced by pulsations of the liquid stream. The dissolved ozone can reduce or... | 07/17/2007 |
| 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 |
| 6913689 | Methods and apparatus for removing sediment from a liquid using pulses of pressurized air Methods and apparatus for removing sediment from a liquid are provided. Pulses of pressurized air are directed into a conduit having an inlet disposed within a first liquid-containing vessel adjacent to (or within) the sediment to cause a slurry of liquid and sedime... | 07/05/2005 |
| 6378706 | In-situ modular cleanable filter A filter housing (14) has a first inlet (16) for receiving a first fluid such as oil from a machine such as an internal combustion engine (12), a first outlet (20) returning the first fluid to the machine, a second inlet (24) selectively receiving a secon... | 04/30/2002 |
| 6015487 | Coolant purification system A number of embodiments of improved systems for cleaning contaminants from a cooling liquid for machining operations. The system includes a series flow relationship between a rare earth magnetic separator, an amorphous filter and a mechanical filter with ... | 01/18/2000 |
| 5897770 | Center core cartridge feeder insert A feeder insert apparatus for a tubular water filtration cartridge utilized in household point of use water filtration systems. The feeder insert allows a chemical to be fed into a incoming water supply at a controlled rate by employing a bypass system th... | 04/27/1999 |
| 5531887 | Manually operated reverse osmosis desalinization system Reverse osmosis, particularly for manually operating water desalination, is achieved using semipermeable membranes which selectively permeate purified water from a feed solution pressurized by reciprocating piston or diaphragm pump. The manual pump action... | 07/02/1996 |
| 5254243 | Water conditioning system and an electronic control therefor An electric control for a water conditioning system includes a solenoid valve which controls water inlet into the system and which is controlled by a flow switch that senses product water flow from a water faucet or other outlet. The flow switch also ener... | 10/19/1993 |
| 5200090 | Multiple fluid source isolation, metering and alarm system and method A system is provided for weighing and monitoring flow from multiple fluid sources into a flow system wherein incoming fluid is received in a weighing bag attached to a control system for monitoring the amount of fluid passed through the weighing bag and f... | 04/06/1993 |
| 5190659 | Contamination removal system employing filtration and plural ultraviolet and chemical treatment steps and treatment mode controller An improved cross-flow granular filtration system involving the use of ultraviolet, ozonation, chlorination, reactive granular filtration media, chemical regeneration, and central flow control is described. The process system and apparatus includes a liqu... | 03/02/1993 |
| 5082557 | Control head for water purifier A water purifier includes a canister containing a reverse osmosis filter unit and threadedly engaged with a control head which is adapted to be coupled to a source of tap water, to a purified water storage tank, to a faucet or other remote usage location ... | 01/21/1992 |
| 4921605 | Apparatus to depollute bodies of water An apparatus to clean or depollute surfaces or layers of water. The apparatus has at least one channel (12) which withdraws a stream of water at the front of the apparatus and discharges the water at the rear of the apparatus after cleaning or depollution... | 05/01/1990 |
| 4895654 | Purified water dispensing and reject water control valve assembly A purified water dispensing and reject water control device is provided for operative association with a pressurized feed water supplied reverse osmosis cartridge that has purified water and reject water outlets and a tank that is subdivided by a movable ... | 01/23/1990 |
| 4872975 | System for separating abrasive material from a fluid used in fluid jet cutting A system for separating abrasive material from fluid used in fluid jet cutting includes a catcher tank, a settling tank and a pumping device which pumps fluid containing an abrasive material from the catcher tank and centrifugally separates an abrasive sl... | 10/10/1989 |
| 4869831 | Separating immiscible components from toxic fluid An apparatus and method for controlling operating conditions of a corrugated plate interceptor vessel using at least two transparent windows located in proximity of the oil and treated water layers which are maintained transparent by washing their interio... | 09/26/1989 |
| 4853117 | Purified water supply system An improved purified water supply system is provided of the type including a reverse osmosis unit for producing relatively pure water from ordinary tap water or the like. The reverse osmosis unit receives incoming tap water and produces separate outflows ... | 08/01/1989 |
| 4842724 | Water purification apparatus Self-standing apparatus for filtering supply water to provide purified water includes a base subassembly and two container subassemblies. One container subassembly provides supply water to filtering apparatus located in the base subassembly. The second co... | 06/27/1989 |
| 4681681 | Grooved filter discs A filter comprises a housing and a filter body including a plurality of grooved filter discs supported in stacked relation on a plurality of rods extending longitudinally of the housing, the rods being supported at their opposite ends by the housing and b... | 07/21/1987 |
| 4572784 | Multiple-disc filters A multiple-disc type fluid filter is described wherein the housing includes an outer tubular section, and an inner section having two tubular members with an end plate at one end of one tubular member and securable to an open end of the outer housing sect... | 02/25/1986 |
| 4556484 | Water filters A water filter connects into a waterline which feeds a faucet separate from the filter. A filter cartridge is seated within a canister and has an inlet and an outlet. The canister is removably attached to a cap in which is disposed an entrance port to com... | 12/03/1985 |
| 4162974 | Deairing and recirculation systems for dialysis machines There is disclosed herein a deairing system for use in a bedside-console-type dialysis machine. The system includes a selectively adjustable flow controller, a deairing tank, and a suction pump for drawing dialysis solution from the flow controller throug... | 07/31/1979 |
| 4153554 | Apparatus for use in artificial kidney system A machine is disclosed for use with an artificial kidney. The machine has three separately controllable pumps enabling delivery and return of a dialysate solution to an artificial kidney with precise control of various dialysate parameters such as tempera... | 05/08/1979 |
| 4130133 | Bypass valving fluid control arrangement A bypass valving fluid control arrangement for a fluid system including a fluid treatment device which permits the removal of the fluid treatment device from the system without interrupting system operation and wherein the bypass valving control comprises... | 12/19/1978 |
| 3992297 | Oil separator device This invention provides a separator for two relatively insoluble mixed liquids of different specific gravities as, for example oil and water. More particularly the invention relates to a bilge oil separating system (BOSS), or apparatus and includes a floa... | 11/16/1976 |
| 3979292 | Duplex filter system A duplex filter system having two filterized fluid flow circuits for maintaining continuous fluid flow to an engine or similar liquid utilizing device during a filter change operation. A fluid control system is provided including liquid-obstructing air ve... | 09/07/1976 |
