Patents by Inventor Wilhelm Lauer

Wilhelm Lauer 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).

  • Ethylene glycol mixture and an aluminum electrolytic capacitor using the mixture
    Patent number: 6707661
    Abstract: The invention is directed to an ethylene glycol mixture that also includes diethylene glycol monobutylether in addition to ethylene glycol and sorbitol. As a result thereof the ethylene glycol mixture exhibits a high dielectric strength (up to 66 V), a low water content and self-extinguishing properties for employment as electrolyte in an aluminum electrolytic capacitor. The invention is also directed to an aluminum electrolytic capacitor with the ethylene glycol mixture and to the employment of the ethylene glycol mixture in aluminum electrolytic capacitors for voltages up to 600 V.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: March 16, 2004
    Assignee: EPCOS AG
    Inventors: Thomas Ebel, Wilhelm Lauer
  • Ethylene glycol mixture, al-electrolyte capacitor comprising the ethylene glycol mixture and the use of the ethylene glycol mixture
    Publication number: 20030089879
    Abstract: An ethylene glycol mixture comprises diethylene glycol monobutylether in addition to ethylene glycol and sorbitol. As a result thereof the ethylene glycol mixture exhibits a high dielectric strength (up to 600 V), a low water content and self-extinguishing properties for employment as electrolyte in an aluminum electrolytic capacitor. An aluminum electrolytic capacitor with the ethylene glycol mixture can be used with voltages up to 600 V.
    Type: Application
    Filed: October 3, 2002
    Publication date: May 15, 2003
    Inventors: Thomas Ebel, Wilhelm Lauer
  • Aluminum electrolyte capacitor and method for the manufacture thereof
    Patent number: 4920457
    Abstract: An aluminum electrolyte capacitor is provided composed of two aluminum foils between which spacers saturated with the operating electrolyte are arranged. Terminal elements are riveted and/or welded to the foils. The anode foil provided with the dielectrically acting oxide layer may potentially be produced from a larger, formed foil web. The non-formed cut edges of the aluminum foil as well as the terminal elements are covered with a fine-grained, electrolyte-compatible material. As a result thereof, the maximum operating voltage U.sub.max of traditional operating electrolytes is boosted.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: April 24, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Schweikert, Norbert Will, Wilhelm Lauer
  • Aluminum electrolyte capacitor
    Patent number: 4893217
    Abstract: An aluminum electrolyte capacitor having a liquid operating electrolyte that contains combustible constituents is integrated in a housing. An absorbent mass that is pourable and only partially fills the empty volume of the housing is contained in the housing.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: January 9, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Schweikert, Wilhelm Lauer
  • Aluminum electrolytic capacitor for rated voltages of at least 160 v
    Patent number: 4164779
    Abstract: A highly conductive operating electrolyte consisting of a mixture containing ethylene glycol, boric acid, adipic acid, ammonia, phosphoric acid and water for use in high power aluminum electrolytic capacitors, such as flashlight electrolytic capacitors.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: August 14, 1979
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Lauer, Rudolf Soldner