Power control and indicator for preamp of acoustic string instrument
US11509268B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 25, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Nov 30, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power control and indicator device for coupling to an acoustic string instrument preamp is provided. The device includes a light emitting diode having an anode terminal and a cathode terminal, a switch having a first terminal and a second terminal, the switch having a closed position that closes a circuit between the first and second terminal and an open position that opens the circuit between the first and second terminal, a battery connector having a positive terminal and a negative terminal, the battery connector adapted to couple to a battery, a preamp connector having a positive terminal and a negative terminal, whereby with a battery connected to the battery connector, wherein with the switch in the closed position, the light emitting diode is powered and illuminates and the battery connector is coupled to the preamp connector, the battery provides power to the preamp connector, and wherein with the switch in the open position, the light emitting diode is not powered and does not illuminate and the battery connector is not coupled to the preamp connector and the battery does not provide power to the preamp connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.