Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 5554965 | Lubricated variable resistance control having resistive pads on conductive path The present invention provides a lubricated variable resistance control including a substrate having formed thereon an electrical resistance path and an electrical conductive path, and a movable contact electrically bridging the electrical resistance path... | 09/10/1996 |
| 5525955 | Capacitor coupled potentiometer An annular resistor member having two non-contact ends is overlaid and adhered on the surface of a base, and a rotational shaft located at the central portion of the resistor member is pivotally axially supported via a bearing. A bent electrode arm is fit... | 06/11/1996 |
| 5302937 | Potentiometer In connection with a potentiometer, which may in particular serve as actuator element for an electronic accelerator pedal and where a base plate carries the respective resistance and collector path(s), it is proposed that instead of providing the usual me... | 04/12/1994 |
| 5258737 | Potentiometer A potentiometer, which avoids problems caused when abraded material collects on the surface of the potentiometer track as a result of friction between the wiper contact and the potentiometer track, causing an undesirable increase in the contact resistance... | 11/02/1993 |
| 5192939 | Cleaning device for rotary controls e.g. potentiometers and switches A device for cleaning the contacts of a potentiometer or the like. The potentiometer has an externally threaded cylinder extending outwardly from a panel of an electronic unit and has a concentric rotatable shaft extending therethrough. The shaft has at l... | 03/09/1993 |
