Patents Assigned to Balluff GmbH
  • Patent number: 5818130
    Abstract: For appropriately polarity recognition and corresponding switchover of a output stage of a proximity switch or the like connected to a supply voltage (VB), even while continuously activated, when a change in load polarity occurs, the proximity switch having in each case a high side driver and a low side driver, it is proposed to define on the output-side voltage axis between the positive supply voltage (+VB) and the negative pole or ground an upper and a lower detection window which sense the load configuration, each at a distance from the working points (which remain in a steady state) of each output stage driver, such that when a change in load configuration occurs, the potential of the output connection, to which the load configuration detection stage is connected, passes only briefly through these detection windows, and such that the transient signal changes which result therefrom in each window region are used for appropriately polarized switchover to the respective correct output stage circuit section b
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: October 6, 1998
    Assignee: Gebhard Balluff GmbH & Co.
    Inventors: Ernst Gass, Sorin Fericean, Bernd Fingerle, Heinz Kammerer
  • Patent number: 5789920
    Abstract: A sensor and process for manufacturing same having an electrical circuit arranged on a carrier which is connected to an electrical connector and a sensor element. The carrier is disposed within a housing having one opening for the connector element and another opening for the sensor element. The sensor element and a first part of the carrier with the electrical circuit are embedded in a duroplastic molding compound. A second part of the carrier with the electrical circuit and the electrical connector are enclosed by a thermoplastic molding compound. A seal is arranged adjacent an intermediate space between the duroplastic molding compound and the housing.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: August 4, 1998
    Assignee: Gebhard Balluff GmbH & Co.
    Inventor: Ernst Gass
  • Patent number: 4678993
    Abstract: The invention relates to an ultrasonic distance measuring device for linear distance measurement comprising a tube of magnetostrictive material, a magnet displaceable relative to the tube for generating torsional ultrasonic pulses as a function of electrical pulses produced by a pulse generator and travelling along the tube, these torsional ultrasonic pulses serving as position signals, and also comprising an ultrasonic receiver coupled to the tube for converting ultrasonic pulses generated in the tube into electrical signals and a measuring circuit for ascertaining the position of the movable magent as a function of the time interval between the signals obtained from the position signals and at least one respective reference signal generated by the presence of an electrical pulse.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: July 7, 1987
    Assignee: Gebhard Balluff GmbH & Co.
    Inventors: Antonius Vinnemann, Veit Koninger