Abstract: The invention relates to safety razors having a blade unit carried on a handle that includes a vibration mechanism and a control device for controlling operation of the vibration mechanism, the control device being connected to an electrode arrangement that can comprise a blade and an electrically conductive casing of the handle, to detect water so that the vibration mechanism is activated in response to the blade unit being immersed into a body of water for rinsing.

Abstract: A hand held appliance including a handle, a head part for use in performing a treatment on a body of a user of the appliance, an electrically operable vibration generating device, and a control device to control operation of the vibration generating device. The control device is proximity or touch sensitive and has a sensor element located at the head part. The vibration generating device is actuated in response to a user of the appliance moving the head part into close proximity to, or into contact with, the body for treating the body.

Abstract: The invention relates to safety razors having a blade unit carried on a handle that includes a vibration mechanism and a control device for controlling operation of the vibration mechanism, the control device being connected to an electrode arrangement that can comprise a blade and an electrically conductive casing of the handle, to detect water so that the vibration mechanism is activated in response to the blade unit being immersed into a body of water for rinsing.

Abstract: The invention relates to a hand held electrical appliance having a handle and a head part to be brought into contact with the body of the user, such as a toothbrush with a brush head or a safety razor with a head part in the form of a blade unit, including an electrically operable vibration generating device, for example an electric motor and eccentric weight, and a control device for controlling operation of the vibration generating device. The control device is proximity or touch sensitive and includes a sensor element, such as an electrode formed by a blade of the blade unit, so that the vibration generating device is actuated in response to a person using the appliance and moving the blade unit (or other head part) into close proximity to or into contact with the body area to be treated.

Abstract: The invention relates to safety razors having a blade unit carried on a handle that includes a vibration mechanism and a control device for controlling operation of the vibration mechanism, the control device being connected to an electrode arrangement that can comprise a blade and an electrically conductive casing of the handle, to detect water so that the vibration mechanism is activated in response to the blade unit being immersed into a body of water for rinsing.