Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7134434 | Pressure support system and method and a pressure control valve for use in such a system and method A pressure support system having enhanced noise reduction and a valve assembly for use in pressure support system. The pressure support system includes a pressure generator having an inlet and an outlet. A first conduit defining a tortuous path is coupled between a ... | 11/14/2006 |
| 7073771 | Porous valve assembly A valve assembly for controlling the flow of a predetermined fluid, including a tube having an open end forming an outlet port, and wherein the tube is made of a material that is porous with respect to the predetermined fluid, an outer wall forming a fluid chamber c... | 07/11/2006 |
| 6427970 | Heat dissipating voice coil activated valves An electromechanical valve that includes a cylindrical housing having a first axially disposed chamber containing a valve body and a spool reciprocally mounted in the body for movement along the axis of the housing. A second chamber is located within the ... | 08/06/2002 |
| 5960831 | Electromechanical servovalve This disclosure is directed to an electromechanical servovalve having an electrical coil or winding movably mounted relative to a magnet so that when the winding is energized by an electric current, it interacts with the magnetic flux generated by the mag... | 10/05/1999 |
| 5906218 | Electric-to-pressure converters A relatively compact and vibration-insensitive electric-to-pressure converter includes an annular flexure from which an annular electromagnetic coil depends into an annular gap defined by the pole pieces of a permanent magnet assembly. A compressed air ex... | 05/25/1999 |
| 5732678 | Slide valve and a large two-stroke internal combustion engine A spool valve (22) controls a hydraulic drive, such as a drive for a fuel pump (18) in an internal combustion engine, in which the hydraulic drive comprises a driving piston (34) journalled in a hydraulic cylinder (33) which through a flow passage (31) is... | 03/31/1998 |
| 5460201 | Electromechanical servovalve This disclosure is directed to an electromechanical servovalve having a movable electrical coil or winding circumscribing a solid permanent magnet and disposed so that when the winding is energized by an electric current, it interacts with an intensified ... | 10/24/1995 |
| 5388607 | Control system for supplying a gas flow to a gas consumption A control system for supplying a gas flow to a gas consumption apparatus, comprising a gas supply pipe which can be connected to the apparatus and which has an electrically controlled gas control valve, and an electronic control unit. The control unit com... | 02/14/1995 |
| 5349986 | Valve mechanism for an acoustic modulator A valve mechanism for an acoustic modulator which modulates air flowing tugh the acoustic modulator. The valve mechanism comprises a pair of cylindrical shaped members with each member having a plurality of elongated ports. The first cylindrical shaped m... | 09/27/1994 |
| 5314164 | Pivotal diaphragm, flow control valve An improved structure for pivotal fluid valves is disclosed wherein an elongated pivot arm is pivotally mounted through a flexible, resilient corrosion-resistant diaphragm that serves to support and balance the pivot arm and as a frictionless pivot suppor... | 05/24/1994 |
| 5265842 | Emission control metering valve An engine emission control metering valve includes a metering ball valve element operatively connected to an electrically-energized linear actuator that includes a stationary magnet and a moving coil concentric with the magnet. The coil has a different ax... | 11/30/1993 |
| 4848726 | Apparatus for transducing an electrical signal into a pneumatic signal An electro-pneumatic transducer comprises a moving coil supported by the baffle plate covering a nozzle with the baffle plate consisting of a disk spring being concentrically arranged with respect to the nozzle.... | 07/18/1989 |
| 4501298 | Solenoid actuated valve device A solenoid actuated valve device for controlling the flow of fluid comprising a body having an inlet port, a first outlet port, a second outlet port, and a bore for fluid communication with the inlet and first outlet ports at one end thereof and for fluid... | 02/26/1985 |
| 3937242 | Pressure control device for controlling the flow of a fluid medium A pressure control device for a flowing fluid medium is described which comprises a fluid inlet conduit structure and a fluid return conduit structure each of which conduit structures has a valve seat; a connecting structure for linkup with a fuel consumi... | 02/10/1976 |
