William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8181668 | Pressure reducing valve for gas A pressure reducing valve for gas is provided in which a valve mechanism having opening in a central part a valve hole that communicates with a low pressure passage and a low pressure chamber and including a valve body that is capable of being seated on a valve seat... | 05/22/2012 |
| 8015993 | Heatable hydrogen pressure regulator A compressed hydrogen tank system that includes a heatable hydrogen pressure regulator. Hydrogen is removed from the compressed tank through a suitable pipe where the pressure drop of the hydrogen is controlled by the pressure regulator. The high pressure side of th... | 09/13/2011 |
| 7874310 | Water cooled liquid fuel valve A water cooled valve is provided in the form of a check valve, an air purge valve, a distributor valve, a combination air purge and distributor valve and the like for use in the liquid fuel system of a gas turbine. A movable valve member controls the flow of fluid t... | 01/25/2011 |
| 7814928 | Microfluidic devices and related methods and systems A microfluidic assembly comprising a replaceable microfluidic circuit and a thermal unit, the microfluidic circuit adapted to contact the thermal unit by contact between one or more membranes in the microfluidic circuit and the at least one temperature controlling e... | 10/19/2010 |
| 7527068 | Valve with swirling coolant A water cooled valve is provided in the form of a check valve, an air purge valve, a distributor valve, a combination air purge and distributor valve and the like for use in the liquid fuel system of a gas turbine. A movable valve member controls the flow of fluid t... | 05/05/2009 |
| 7434745 | Method and system for providing temperature-controlled water to emergency shower facilities A method and system for supplying temperature-controlled water to emergency shower and/or eyewash units (“SS/EWs”). In one embodiment, the water is circulated through a normally closed system containing a heat source such as a heat exchanger, a tank and pipes le... | 10/14/2008 |
| 7401762 | Solenoid-operated valve for use with fuel cells A solenoid-operated valve for use with fuel cells has a valve housing made of aluminum, for example and having first through third heating medium passages defined therein. A valve seat disposed in and fastened to the valve housing is made of stainless steel, for exa... | 07/22/2008 |
| 7370672 | Diverter valve A diverter valve is disclosed and may comprise an actively cooled valve actuation section, an actuator, and a valve section comprising a rotationally actuated valve plate that is structured to be rotationally actuated by the actuator to direct flow wherein the actua... | 05/13/2008 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7360555 | Gas regulator with altimetric adjustment The invention relates to a gas regulator which is intended to be mounted on a gas delivery pipe connecting a gas source to a user device. The inventive regulator comprises a pressure regulation mechanism which is controlled by the movement of a mobile element. The i... | 04/22/2008 |
| 7347423 | Arrangement in connection with mechanical seal An arrangement in connection with a mechanical seal includes at least two sliding surfaces pressing against each other, which are arranged to seal a gap between a rotating and a non-rotating machining part, and mechanism for providing a sealing fluid flow cooling th... | 03/25/2008 |
| 7332040 | Semiconductor manufacturing system having a vaporizer which efficiently vaporizes a liquid material A vaporizer can efficiently vaporize a liquid material under a depressurized atmosphere. The liquid material is temporarily stored in a liquid storing chamber, and is supplied to a vaporizing chamber set in the depressurized atmosphere via a small aperture. An inlet... | 02/19/2008 |
| 7261150 | Apparatus for humidification and temperature control of incoming fuel cell process gas A method for humidifying and controlling the temperature of a process gas stream comprising the steps of super-saturating and heating the process gas stream with steam until it reaches a first pre-set temperature; cooling the process gas stream until it reaches a se... | 08/28/2007 |
| 7258140 | Portable pressurized gas supply apparatus for pneumatic equipment A portable gas supply apparatus comprises first and second storage tanks, a first pressure reducing device, a manifold and a first pneumatic connector fitting. The first storage tank includes an internal cavity for holding a supply of a pressurized fluid at a relati... | 08/21/2007 |
| 7250949 | Method and system for visualizing three-dimensional data A technique is provided for visualizing a volume of interest, such as may be acquired by a tomosynthesis imaging system. The technique provides for the use of one or more weighting functions, such as depth-dependent weighting functions, in the determination of pixel... | 07/31/2007 |
| 7243647 | Universal integrated device for controlling gas-burner rings of a cooking surface including a gas tap and a catenary element A device for controlling the gas-burner rings of a cooking surface includes a gas tap equipped with a control knob and a catenary element for control of ignition of the gas-burner rings. The catenary element includes a microswitch actuated selectively by a bushing c... | 07/17/2007 |
| 7225832 | Five valve manifold with angle bonnet details A multi-valve manifold is provided, including a valve body having a periphery about which are placed a series of valves. At least one of the series of valves fits within a depression in the valve body. ... | 06/05/2007 |
| 7204264 | High pressure capillary micro-fluidic valve device and a method of fabricating same A freeze-thaw valve and a method of micro-machining the freeze-thaw valve is provided and includes a valve housing, wherein the valve housing defines a housing cavity and includes a housing inlet, a housing vent, a capillary tubing inlet and a capillary tubing outle... | 04/17/2007 |
| 7201182 | Lined valve A modular lining system for a valve body for use in fluid handling systems including fluid transport tankers, and a method for lining a valve body using the modular lining system. The lining system is slidably inserted into the valve body to protect the valve body f... | 04/10/2007 |
| 7195176 | Temperate water supply system A temperate water supply is provided. The temperate water supply system includes a temperate water storage tank and a heat exchanger. The temperate water storage tank has a first tank inlet, a first tank outlet, a second tank inlet and a second tank outlet. The firs... | 03/27/2007 |
| 7195056 | Thermal control covers A heat transfer cover mitigates temperature changes of an object. A cover body is configured to receive the object. A plurality of heat transfer channels are defined in an interior of the cover body. The channels are arranged to transport a heat transfer fluid in th... | 03/27/2007 |
| 7191793 | Diaphragm valve for atomic layer deposition A shut-off type diaphragm valve adapted for use in an atomic layer deposition system includes a flexible diaphragm operable to flex between an open position whereby a valve passage is at least partially open and a closed position whereby a substantial portion of a f... | 03/20/2007 |
| 7188639 | Storage tank for easily polymerizable compound and method of storage A storage tank for an easily polymerizable compound has acceptance piping and delivery piping with a circulation line directly connecting the acceptance piping to the delivery piping or with circulation lines respectively connecting the acceptance piping to the stor... | 03/13/2007 |
| 7182126 | Fluid heater A heat distribution apparatus comprising a fluid conduit having a peripheral wall defining a flow passage and a pair of fluid capillaries extending along the wall and secured thereto. The capillaries being connected to one another in series to provide a fluid flow p... | 02/27/2007 |
| 7171972 | Passive back-flushing thermal energy system This invention provides a thermal energy system comprising a heat exchanger for transferring thermal energy between a source and a load, the heat exchanger having a primary side associated with the source, and a secondary side for conducting a fluid associated with ... | 02/06/2007 |
| 7168447 | Fluid distribution unit for dividing a stream of fluid into a plurality of partial streams The invention relates to a liquid distribution unit (10, 20) for dividing a liquid current into a plurality of partial currents. Said unit comprises at least one liquid inlet (13, 23) for the supplied liquid current, a plurality of liquid outlets (1... | 01/30/2007 |
| 7159837 | Plug baffle device for mold A plug baffle device for installation in a coolant passage within a mold, the plug baffle device having its coolant-encountering blade mechanically attached to a base member, and methods for making such plug baffle device. Advantages include acceptance of greater to... | 01/09/2007 |
| 7150299 | Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ... | 12/19/2006 |
| 7140378 | Instantaneous water heater A system for instantaneously heating water has a heat exchanger for heating cold water to produce overheated water; a hot water supply member connected to a first intake of the heat exchanger; a cold water supply member connected to a second intake of the heat excha... | 11/28/2006 |
| 7117888 | Hydraulic separator The invention relates to a hydraulic separator to be fitted between a primary liquid circuit and a secondary liquid circuit, in such a manner that the first and secondary liquid circuits are hydraulically independent. The hydraulic separator has an elongate body wit... | 10/10/2006 |
| 7114702 | Slide valve In a slide valve, especially for coating installations, for fluidic separation of two modules or chambers, interconnected through an opening, containing at least one slide plate, integrated in a housing transfixed by said opening, and which may be bidirectionally mo... | 10/03/2006 |
| 7096879 | Pillar sink mixer with hand spray A pillar sink mixer has a hot water faucet pillar, a cold water faucet pillar, a mixing chamber and a diverter valve to supply mixed water to a faucet nozzle or to a hand spray. The mixing chamber and diverter valve are positioned in a bridge above a mounting surfac... | 08/29/2006 |
| 7086416 | Valve assembly having a compensating gate Methods and apparatus for selectively blocking or redirecting flow with a valve that compensates for misalignment between a seat and a gate are disclosed. In one aspect, a valve includes a gate having two discs spaced from one another, first and second seats within ... | 08/08/2006 |
| 7082912 | System and method for controlling engine valve lift and valve opening percentage System and method for controlling internal combustion engine valve lift and valve opening by an arrangement of cams with overlapping cams track that synchronize and vary the rise, fall, and dwell of the inlet and exhaust valves of an IC engine. ... | 08/01/2006 |
| 7080820 | Elliptical sealing surface for butterfly valve A reduced component wear valve is comprised of a valve body having a passage therethrough and a disc attached to a rotatable shaft. The disc is utilized with a seal forming a gap between the disc and the seal proximate to the rotational axis of the disc. When the di... | 07/25/2006 |
| 7069942 | Method and apparatus for handling of covering gas A method for the handling of covering gas or inert gas in connection with a tank that conveys crude oil, during successive discharging and loading operations of the tank, is disclosed. The method is characterized by the fact that covering gas/inert gas is re-circula... | 07/04/2006 |
| 7069781 | Stillwell apparatus This invention involves a new housing for a liquid level detection device. More particularly, the new stillwell apparatus comprises, at least one tubular section, a means for extending the length of the stillwell, a conduit for delivering a cleansing solution... | 07/04/2006 |
| 7066729 | Gas powered heat delivery system A gas powered heat delivery system, comprising a fuel gas supply, a catalytic heater connected to the fuel gas supply; a tank containing fluid, the tank being disposed to receive heat from the catalytic heater; a one way conduit having an inlet for receiving fluid f... | 06/27/2006 |
| 7051801 | Method and apparatus for humidification and temperature control of incoming fuel cell process gas A method for humidifying and controlling the temperature of a process gas stream comprising the steps of super-saturating and heating the process gas stream with steam until it reaches a first pre-set temperature; cooling the process gas stream until it reaches a se... | 05/30/2006 |
| 7051754 | Immediate hot water supply device In a hot water distribution system, the water oscillation in hot water supply line maintains hot water line in heated condition by ensuring heat transfer from the water heater to a hot water line executing regenerative heat transfer technique. Fulfillment of longitu... | 05/30/2006 |