Rotary electric component
US4477795A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C10/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary electric component such as a semifixed variable resistor comprises an insulating substrate having a shaft hole, a resistor mounted on the insulating substrate surrounding the shaft hole, a pair of electrodes mounted on the insulating substrate and connected to the resistor at ends thereof, a pair of terminals mounted on the insulating substrate and connected to the electrodes, respectively, a shaft rotatably mounted in the shaft hole and having a movable contact held in sliding contact with the resistor, a cover mounted on the shaft over the insulating substrate and covering the movable contact, the cover having a skirt spaced from the insulating substrate by a gap, and a body of synthetic resin mounted on the insulating substrate and a portion formed as a dust wall covering the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.