Patents by Inventor Werner Kohler

Werner Kohler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4007345
    Abstract: An indicating arrangement for indicating the condition of the switching contacts of a switching vessel is provided for a vacuum-switch apparatus having an actuator for opening and closing the switching contacts. The indicating arrangement includes a spring for pressing the switching contacts together when the actuator is actuated to close the contacts. The spring has a length corresponding to the closed position which is dependent upon the wear condition of the contacts. The changes of length of the spring are indicated as the switching contacts are worn from repeated switching operations.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: February 8, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventors: Werner Kohler, Norbert Steinemer
  • Patent number: 3953698
    Abstract: A contact system for a vacuum switch includes contact members movable relative to each other for electrically opening and closing the vacuum switch. Each of the contact members includes a carrier and a contact piece mounted on the carrier. Openings are formed in at least one of the contact pieces along substantially concentric circular arcs so that the openings of one series cover the gaps between the openings of an adjacent series.
    Type: Grant
    Filed: September 26, 1974
    Date of Patent: April 27, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hans Luttgert, Werner Kohler
  • Patent number: 3944771
    Abstract: The invention concerns an overcurrent protection device which comprises contacts adapted to operate in dependence on the current. The set of contacts are arranged in a vacuum vessel, with one of the contacts guided movably via an actuator rod through an end wall of the vessel, while the other is secured to the opposite end. The moving rod cooperates with a latching device, which holds the contact in the open position. The latching device is designed so that it can be released when desired. If an overcurrent occurs, the contacts are separated by electrodynamic forces and are secured in the separated position by the latching device. After release of the latching device, the overcurrent protection device is again ready for use.
    Type: Grant
    Filed: December 14, 1973
    Date of Patent: March 16, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Werner Kohler
  • Patent number: 3941959
    Abstract: A vacuum switching apparatus is equipped with a switching vessel which can be actuated by a drive unit at ground potential by means of a drive assembly transmitting the drive motion. The drive assembly includes a lever made of insulating material which is fulcrumed about an electrically conductive bearing pin. The lever serves as the actuating member of the switching vessel and the bearing pin is at an intermediate potential between the grounded and the high-voltage-carrying parts.The invention is suited particularly for single-pole or multi-pole vacuum switching apparatus in the medium-voltage range.
    Type: Grant
    Filed: April 25, 1974
    Date of Patent: March 2, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventors: Werner Kohler, Norbert Steinemer
  • Patent number: 3932810
    Abstract: The combined current and voltage measuring apparatus has a cast resin body which supports the current measuring unit. The voltage measuring unit includes a capacitive voltage divider with an amplifier connected thereto. The cast resin body is also utilized as dielectric for the capacitor on the high-voltage side of the capacitive voltage divider. Embedded in the cast resin body is an auxiliary capacitor with a dielectric which, with respect to temperature dependence, corresponds to the dielectric of the high-voltage capacitor. The auxiliary capacitor, in series with a resistor, is connected to an auxiliary generator. The voltage dropped across the resistor is supplied, after rectification, to an input of a differential amplifier; the other input of the differential amplifier is connected to the terminal away from ground of the capacitor on the low-voltage side of the capacitive voltage divider.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: January 13, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventors: Werner Kohler, Norbert Steinemer