Mounting arrangement, ultrasonic congestion switch therefor, and method for use and operation thereof

The invention relates to a jam switch (1) for detecting a jam of a container (23), in particular a bottle, transported on a conveying device (24) of a conveying system, comprising an ultrasonic sensor (2) which emits sound flaps (10) which converge closely about a sensor axis (S), said ultrasonic sensor (2) being designed as a proximity switch, the invention relates to an ultrasonic sensor (2) for transmitting an ultrasonic signal and receiving an echo signal reflected back by a container (23) present in a detection region (26) of the congestion switch (1), a reflector (3) having a sound-deflecting sound-deflecting surface (4) being arranged in front of a hole (25) of the ultrasonic sensor (2) that emits a sound lobe (10), the sound-deflecting surface (4) being shaped and arranged such that the sound lobe (10) is deflected by the reflector (3). The sound deflection surface (4) is arranged on the ultrasonic sensor (2) such that a sound lobe (10) emitted by the ultrasonic sensor (2) is deflected on the sound de