Patent ID: 7886754

Claim:
Ultrasonic cleaning apparatus for treating a textile product comprising: a body including an opening; an ultrasonic transducer receiving ultrasonic wave signals generated by an ultrasonic signal generator; an ultrasonic wave emission surface coupled to the ultrasonic transducer; and a control device adapted to detect the ultrasonic wave emission surface being in contact or in close proximity to an object and to stop the operation of the ultrasonic transducer or to reduce its emission intensity upon detection of the ultrasonic wave emission surface not being in contact or in close proximity to the object, wherein the body of the ultrasonic cleaning apparatus is a handheld device that can be freely moved and is at least partially formed as a gripping element for a user of the ultrasonic cleaning apparatus, and wherein the ultrasonic transducer and the ultrasonic wave emission surface are movably arranged within the body by a user-operable actuator element, and wherein in an operation position the ultrasonic wave emission surface is aligned with the opening or protruding from the opening, and wherein in a rest position the ultrasonic wave emission surface is retracted from the opening.