Abstract: A toothed washer, in particular for fixing a tube line introduced in a fluid connector in an insertion direction, including an annular base having a toothed washer central axis. At the inner circumference of the base, cutting teeth are respectively disposed as a single component on the base radially inward and obliquely to the toothed washer central axis and extending in the insertion direction over an overmolded resilient hinge section and an overmolded retaining section connected thereto. The cutting teeth are configured such that in the event of a fixing movement of the tube line, the cutting teeth cut-in against the insertion direction into an outer circumference of the tube line, wherein the cutting teeth include a cutting surface for cutting into the outer circumference of the tube line to be fixed.

Abstract: This invention relates to a method for data transmission in two-way communication via low-voltage systems that are linked to a higher order telecommunication network. Data transmission takes place within the low-voltage system at a high-frequency range of up to 30 MHz using band spreading of data signals and a transmit level below the specified radio interference or noise voltage limit, in that said band-spread data is given a direction coding to specify a logical direction within the low-voltage system using different sequences of a family of pseudo-random numbers to enable multiple-user operation, and in that the binary sequences of data with their user-specific spreading and direction-specific coding are identified by correlation using specified sequences at attenuation-dependent intervals within the low-voltage system, then said data sequences are regenerated and assigned new direction codes for forwarding.

Abstract: A vacuum apparatus and method are provided for controlling operation of a vacuum force to be applied through a vacuum cup for use in lifting objects such as cardboard boxes, so as to unload a pallet holding one or more of the boxes. The apparatus includes a valve body defining an inner chamber, a lift vacuum passage extending through the valve body to the chamber, a pilot vacuum passage extending through the valve body to the chamber, and a vacuum cup passage extending through the valve body to the chamber. A vacuum cup is connected to the valve body in airflow communication with the vacuum cup passage. A piston is disposed in the chamber and positioned for reciprocal movement between a first position and a second position. In the first position, the piston provides an airflow passageway between the pilot vacuum passage and the vacuum cup passage such that, if the vacuum cup is obstructed, the piston is pulled down by the pilot vacuum force to a second position.