Abstract: A self-closing dispensing valve is made of plastomer or thermoplastic elastomer and includes a valve head with a dispensing orifice, a circular peripheral retaining flange spaced apart from the valve head in an axial direction, and a connecting sleeve integrally connected with the valve head on one end and the retaining flange on another end. The valve head has a dome shape with a concave exterior side and a convex interior side. The connecting sleeve is substantially form stable. The valve head is connected to an upper end of the connector sleeve by a hinge portion that is U-shaped in cross section. The wall thickness of the hinge portion is smaller than the wall thickness of the connector sleeve and is staggered at the transition between the connector sleeve and the hinge portion. Alternatively the connector sleeve is omitted and the valve head is directly connected to the retaining flange.

Abstract: A self-closing dispensing valve is made of an elastic material and includes a valve head with a dispensing orifice, a circular peripheral retaining flange spaced apart from the valve head in an axial direction, and a connector sleeve integrally connected with the valve head on one end and the retaining flange on another end. The elastic material is a plastomer or a thermoplastic elastomer. The connector sleeve is substantially form stable. The valve head is connected to an upper end of the connector sleeve by a hinge portion that is U-shaped in cross section. The wall thickness of the hinge portion is smaller than the wall thickness of the connector sleeve and is staggered at the transition between the connector sleeve and the hinge portion. Alternatively, if the connector sleeve is omitted, then the valve head is directly connected to the retaining flange.

Abstract: A bus coupler for a network, in particular for an optical ring network, includes: a bus participant interface for data connection to at least one bus participant device; a bus receiving interface for receiving bus input data via a bus line; a bus transmitting interface for transmitting bus output data via the bus line; and a control unit for generating bus output data based on participant input data received via the bus participant interface, the bus transmission data including bus control data, and to transfer the bus output data to a further bus coupler by the bus transmitting interface. The control unit specifies a control signal based on the bus input data received by the bus receiving interface and performs a relaying of the bus input data to the further bus coupler based on the specified control signal.

Abstract: An I/O system component for a switch and control cabinet for components and/or functional units of an I/O network, including: a housing with a front, a top, a bottom, at least one side face, and a sensor window; at least one ultrasonic sensor for detecting at least one physical quantity, the at least one ultrasonic sensor being arranged behind the sensor window; and at least one printed circuit board, the at least one ultrasonic sensor being connected to the printed circuit board so as to carry data.

Abstract: A bus coupler for a network, in particular for an optical ring network, includes: a bus participant interface for data connection to at least one bus participant device; a bus receiving interface for receiving bus input data via a bus line; a bus transmitting interface for transmitting bus output data via the bus line; and a control unit for generating bus output data based on participant input data received via the bus participant interface, the bus transmission data including bus control data, and to transfer the bus output data to a further bus coupler by the bus transmitting interface. The control unit specifies a control signal based on the bus input data received by the bus receiving interface and performs a relaying of the bus input data to the further bus coupler based on the specified control signal.