Electric treadmill
US11524207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2020 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Nov 18, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/09
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An electric treadmill includes a motor and a motor driving circuit. The motor driving circuit is operable to control electric current flow from a positive electrode through the motor to a negative electrode to drive the motor. The motor driving circuit has a switch path connected between the positive electrode and the negative electrode. The switch path has a resistance element and a switch element connected in series. When the motor driving circuit receives power, the switch element will be switched to a disconnected state, so that the resistance element is inactive. When the motor driving circuit does not receive power, the switch element will be switched to a connected state, so that the resistance element becomes a load between the positive electrode and the negative electrode for consuming power generated by the motor when the endless belt is driven to rotate by an external force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.