Bizarre Patents
An electrified table cloth for preventing crawling insects from gaining access to the consumer's food or drink.
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 |
| 7426932 | Spray fill device and method for using the same A spray fill device for delivering water to a washing machine is provided. The spray fill device includes a body defining an inlet, an outlet port, a mounting port, and a plurality of outlet apertures in flow communication with the inlet. The spray fill device also ... | 09/23/2008 |
| 7341074 | Multi-stage pressure regulator A pressure regulator that has particular application for an anode input side of a fuel cell system to provide the desired large turn-down ratio. The pressure regulator includes at least two valves positioned in parallel where the first valve is smaller than the seco... | 03/11/2008 |
| 7299818 | Integrated microvalve and method for manufacturing a microvalve An integrated microvalve has a substrate, a first function layer applied to the substrate, and a second function layer applied to the first function layer, the first function layer being designed as a diaphragm in at least one valve area, the second function layer b... | 11/27/2007 |
| 7293581 | Latching micro-regulator A latching microregulator for regulating liquid flow on micro-scale levels comprises a substrate having an inlet port and an outlet port, a valve element defining a valve chamber for opening and closing the inlet port, and an actuator assembly for actuating the valv... | 11/13/2007 |
| 7251925 | Pressure-based fuel metering unit A fuel delivery system for use, for example in a gas turbine engine system, includes a fuel metering unit including a main fuel inlet. The fuel metering unit includes fuel pressure and temperature sensors. A cavitating venturi is in fluid communication with the main... | 08/07/2007 |
| 7225790 | Valve device and method for injecting a gaseous fuel A valve device and a method directly inject gaseous fuel into a combustion chamber. A rapid response in a simple and compact design is achieved by a piezoelectric, magnetostrictive, or electromagnetic actuator that acts on a transmission device that comprises at lea... | 06/05/2007 |
| 7194863 | Turbine speed control system and method One embodiment of the invention provides a turbine control system that adjusts the control thresholds of two-position valves, which provide propellant to the turbine, based on turbine load so as to compensate for increased turbine speed overshoot at low load and the... | 03/27/2007 |
| 7140384 | Substrate processing equipment having mass flow controller A mass flow controller includes a base having a first passage, an inlet portion for introducing fluid into the first passage, an outlet portion for releasing the fluid from the first passage, and a second passage branched from a first upstream portion of the first p... | 11/28/2006 |
| 7069941 | Electronic faucets for long-term operation An electronic faucet (10) mounted on a countertop (12) includes a housing, at least one fluid inlet line (24a, 24b) extending into the housing, a fluid outlet (46) from the housing, a solenoid (142, 143) for op... | 07/04/2006 |
| 7048003 | Polyvalve A flow control and pressure reducing valve having a polygonic valve body with an inlet chamber and an outlet chamber partitioned by a partition plate. A plurality of passages are formed through receptacles around the partition plate, with the inlet portion opening i... | 05/23/2006 |
| 6997202 | Gas storage and dispensing system for variable conductance dispensing of gas at constant flow rate A gas supply system arranged for dispensing of gas at a predetermined flow rate. The system employs a gas dispensing flow circuitry arranged for dispensing gas at selectively variable gas flow conductance conditions, to maintain the flow rate of the dispensed gas at... | 02/14/2006 |
| 6981518 | Latching micro-regulator A latching microregulator for regulating liquid flow on micro-scale levels comprises a substrate having an inlet port and an outlet port, a valve element defining a valve chamber for opening and closing the inlet port, and an actuator assembly for actuating the valv... | 01/03/2006 |
| 6962167 | Choke valve A choke valve having a coarse setting choke means and a fine setting choke means placed in parallel to it. The coarse setting choke means is able to be switched over in stages between different degrees of choking with different choke cross sections. The fine setting... | 11/08/2005 |
| 6705345 | Micro valve arrays for fluid flow control An array of micro valves, and the process for its formation, used for control of a fluid flow and having a substrate with a plurality of apertures for directing the fluid to flow from one side to another. A micromechanically formed fluid seal surrounds each aperture... | 03/16/2004 |
| 6534003 | Valve and a method of using a valve A valve is provided which includes a valve body, a first valve member, and a second valve member. The valve body has a first flow passage formed therethrough and a second flow passage formed therein. The second flow passage has a smaller cross-sectional a... | 03/18/2003 |
| 6360762 | Method for feeding gases for use in semiconductor manufacturing An apparatus for feeding gases for use in semiconductor manufacturing reduced in size and manufacturing costs and facilitating maintenance and operation of the gas supply system. The apparatus comprises a plurality of gas supply sources, gas source valves... | 03/26/2002 |
| 6240944 | Addressable valve arrays for proportional pressure or flow control A device for controlling the proportional pressure or flow of fluids over a range of source pressure. An addressable array is interposed between a source pressure and an exit pressure chamber. The array comprises a plurality of valves, the total open area... | 06/05/2001 |
| 6234204 | Flow control valve A flow control valve has a supply line connection, and at least one discharge line connection, and is characterized by at least one fine-control valve whose flow rate is continuously or semicontinuously variable and at least one two-position valve having ... | 05/22/2001 |
| 6089533 | Arrangement having at least one hydraulic actuator The invention is directed to an arrangement having one or several hydraulic actuators. The arrangement is characterized in that the hydraulic actuators are realized, at in part, by utilizing bistable magnetic valves.... | 07/18/2000 |
| 6032923 | Fluid valves having cantilevered blocking films A cantilever valve useful for paper handling applications is disclosed. The valve can be batch fabricated in two dimensional valve arrays, with each valve in the array being controlled by passive matrix addressing. Typically, each valve includes a valve h... | 03/07/2000 |
| 5927325 | Microelectromechanical machined array valve A valve to allow digitally addressable flow controllers is provided. An array of micromachined valves having a range of flow capacities and individually addressable while functioning in an On/Off mode allows flow controllers and similar devices high resol... | 07/27/1999 |
| 5875817 | Digital gas metering system using tri-stable and bi-stable solenoids A digital gas metering system includes inlet and outlet manifolds, a plurality of conduits each extending between the inlet manifold and the outlet manifold, and a solenoid-operated valve in each conduit. At least one of the valves is a tri-stable valve. ... | 03/02/1999 |
| 5765585 | Sample decade dilution system and procedure The method and apparatus of this disclosure are directed to a system for diluting a sample gas. For example, the sample gas may carry excessive water which creates difficulties in analysis. The apparatus includes an inlet line, a control valve which switc... | 06/16/1998 |
| 5520333 | Tube metering control system Method and apparatus for dispensing a liquid agricultural agent at a desired rate. A source of the liquid is pressurized and passed in parallel though at least one regulating capillary tube of such diameter and length as to regulate the rate of dispensing... | 05/28/1996 |
| 5467797 | Two-position three-way solenoid valve A solenoid valve is provided which achieves the function of a two-position, three-way directional control valve and functions at high pressures with low leakage rates. In addition, the valve provides a cost effective and simplified configuration to additi... | 11/21/1995 |
| 5341834 | Multiport valve for fluid transfer systems A multiport valve for a water transfer system passes water, drawn by a pump, through a plurality of collectors. A programmable controller controls operation of the pump and a stepper motor which positions the multiport valve in a time series sequence acco... | 08/30/1994 |
| 5329965 | Hybrid valving system for varying fluid flow rate In a fluid valving system, binary fluid control lines are connected in parallel between a common fluid inlet and a common fluid outlet. Each line has a binary valve and a metering orifice for passing a predetermined rate of fluid flow. The rates are in a ... | 07/19/1994 |
| 5289811 | Purge control device A purge control device for an evaporative control system comprises a single housing having two solenoid actuated valves controlling parallel orifices leading from an inlet chamber to an exit flow path. The two solenoid valves have different sized orifices... | 03/01/1994 |
| 5150690 | Flow control system A flow control system for use in a compressible fluid-fueled internal combustion engine includes a fluid metering device comprising a plurality of fluid lines for communication between an inlet fluid manifold and a metered fluid manifold. Bistable valves ... | 09/29/1992 |
| 5085247 | Machining fluid supply device for a wire cut electric discharge machine A machining fluid device for a wire cut electric discharge machine, which controls the amount of machining fluid supplied from upper and lower nozzles to values suited to different machining modes including first and second machining modes. The device inc... | 02/04/1992 |
| 5065794 | Gas flow distribution system Gas distribution system including main, lateral and loop conduits in which gas flow is continuously provided between a source of pressurized gas and venting means so that "dead space" is avoided in the distribution system and continuous real time monitori... | 11/19/1991 |
| 5048564 | High-speed solenoid valve for a fluid under pressure, e.g. for pneumatic circuits A solenoid valve having an electromagnet arranged in a chamber into which an inlet duct and an outlet duct of the solenoid valve open, whereby the coil is constantly ventilated by the compressed air itself. The armature of the electromagnetic has a disc f... | 09/17/1991 |
| 4974707 | Shock absorber A shock absorber with a variable damping characteristic has a piston which is reciprocable in a cylinder to divide the oil-filled internal space of the cylinder into two chambers. The chambers are connectable to each other by one or more passages so that ... | 12/04/1990 |
| 4877056 | Digital valve A "digital" valve comprises a plurality of shutters (46) connected in parallel between an inlet duct (2) and an outlet duct (42) of the digital valve, with each shutter (46) being constituted by an elementary spherical plug valve (50) capable of transmitt... | 10/31/1989 |
| 4719941 | Throttle valve A throttle valve having a housing defining a cavity, with structures providing a flow channel within the cavity, and an inlet and outlet in communication with the flow channel. The throttle valve also includes a valve closure in the form of a plurality of... | 01/19/1988 |
| 4628961 | Multiple orifice stepper control valve This invention relates to a control valve including a plurality of rotary closure members respectively blocking and opening a plurality of flow passages extending from one port opening to another port opening included in the valve body. Each of the plural... | 12/16/1986 |
| 4624282 | Two-stage solenoid valve A two-stage solenoid valve uses a pair of stacked coaxial armatures in a cylindrical sleeve housing. A first armature is provided with a fluid sealing ring and is urged by a first spring to peripherally seal an adjacent internal fluid port in a valve base... | 11/25/1986 |
| 4577658 | Calibrated fluid flow control device Calibrated fluid flow control device comprising several valves (1a to 1b) mounted in parallel on a single body (2) receiving in several housings (6), several seats and several interchangeable calibrated nozzles, the housings (6) being connected to a commo... | 03/25/1986 |
| 4369964 | Sheet feed apparatus for printer or the like A drum (13) is provided with vacuum openings (14), (16), for suckingly holding a sheet (19) thereto for printing or the like. A sheet feed failure is detected by sensing for a drop in the level of vacuum at a vacuum source (12) below a predetermined value... | 01/25/1983 |
| 4356840 | Digital fluid flow control system In a digital fluid flow control system having a source of fluid at a first pressure and a fluid receiver at a second pressure lower than the first pressure, individually actuatable, digital valve elements interconnect the source to the receiver. In the fl... | 11/02/1982 |
