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US 6,616,621 B1Granted
Massaging device
AssigneeDr. Kohr GmbH & Co. Medizintechnik
InventorOliver Kohr
Life of this patent
Estimating the term…
Abstract
A massaging device includes a motor integrated with a housing, a shaft for transmitting the motor motion, a treatment head attachable to the shaft. The rotational speed of the motor can be measured as part of a control circuit. The rotational speed provides an actual value to the control circuit. A setpoint of the rotation speed of the motor can be manually adjusted. The control circuit is designed so that the current supplied to the motor is controlled depending on the difference between the instantaneous actual value and the selected setpoint.
Claims15
A massaging device, comprising:
- a housing;
- a motor disposed in said housing,
- a shaft for transmitting rotational motor motion,
- a treatment head attachable to said shaft,
- means for directly measuring the rotation speed of the motor, said means being connected to a control circuit, wherein said means for directly measuring the rotation speed. provides an actual value of motor rotational speed to said control circuit,
- means disposed on said housing for manually adjusting a setpoint of the rotation speed of said motor;
- and
- wherein said control circuit controls the current supplied to said motor as a function of the difference between the instantaneous actual value and the adjusted setpoint, the motor rotational speed.
5 more elements
Dependencies are inferred from the claim text.