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 |
| 6289602 | Strain gage exhaust gas recirculation valve sensor An exhaust gas recirculation valve sensor has a housing with a cavity. A shaft is located in the cavity and extends out of the cavity into contact with a portion of the EGR valve. A sensor mechanism is located in the cavity and generates an electrical sig... | 09/18/2001 |
| 6123892 | Variable orientation magnet molding tool A magnet molding tool for controlling the orientation of magnetic particles in a polymer bonded magnet during injection molding. A magnet mold has a mold cavity. A flux generator is connected to the magnet mold for applying a magnetic field in the cavity.... | 09/26/2000 |
| 6121954 | Unified bodied z-axis sensing pointing stick A pointing stick 10 for controlling the positioning, movement and operation of a cursor 209 on the display screen 213. The pointing stick 10 includes a solid structure 20 having a base 24 and a shaft 22 integrally formed with and perpendicular to the base... | 09/19/2000 |
| 6098457 | Fluid level detector using thermoresistive sensor A fluid level detector according to the invention comprises a substrate formed of a heat-insulative material and one or more thermoresistive sensor elements located on the substrate that is adapted to be immersed in a fluid. A current source is connected ... | 08/08/2000 |
| 6049256 | Low profile ovenized oscillator packing having a high thermal conductivity substrate A low profile integrated oscillator operable to provide an oscillator signal includes a substrate having a cavity and a via passing through the substrate. A crystal or other resonator is disposed in the cavity and stabilizes the oscillator signal. An elec... | 04/11/2000 |
| 6040756 | Compact potentiometer A sensor is disclosed that fits in a compact package. This compact sensor is ideal for sensing rotary positions and for accommodating one or more potentiometers. The resistor track is parallel and opposed to the collector track, and the wiper is placed be... | 03/21/2000 |
| 6014900 | Z-axis resistor test system A test system for performing a test of strain gauge resistors used on a pointing stick. The test system has a mechanical load applicator that holds the resistor and applies a mechanical force to the resistor. An electrical contactor makes and breaks an el... | 01/18/2000 |
| 5955881 | Linkage position sensor having a magnet with two ramped sections for providing variable magnetic field An extremely reliable and effective position sensor is provided at low cost for determining the relative position of a mechanical linkage with respect to a reference point. The position sensor includes a rotor or bracket which is mechanically coupled to t... | 09/21/1999 |
| 5798639 | Rotary position sensor with improved bearing tolerance A rotary position sensor having a dual magnet structure interconnected by a pole piece forming a varying dimension air gap. The magnets, the pole piece and the air gap between the magnets define a closed magnetic circuit. A Hall effect sensor is fixedly m... | 08/25/1998 |
| 5757179 | Position sensor with improved magnetic circuit A rotary position sensor connected to the butterfly valve of an internal combustion engine, the sensor having a dual magnet structure interconnected by a pole piece having a generally C-shaped cross section forming a varying dimension air gap. The magnets... | 05/26/1998 |
