Patents by Inventor Wolfgang Ehrmann

Wolfgang Ehrmann 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: 4332406
    Abstract: A lock catch for doors having holding elements thereon includes a catch housing formed with at least one door-mounted holding element-receiving slot therein. At least one locking lever is pivotably mounted within the catch housing. A spring is positioned within the catch housing to normally bias the locking lever to project into the slot. A first bevelled surface is formed on the locking lever and is engageable by the holding element on the door when the door is closed, such engagement resulting in pivotal movement of the locking lever in a first direction to permit entrance of the holding element into an inner end region of the slot inwardly of the locking lever. A second bevelled surface is formed on the locking lever is engageable by the holding element of the door upon withdrawal of such element from the inner end region of the slot in which it has been locked releasably.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: June 1, 1982
    Assignee: Firma Hafele KG
    Inventors: Wolfgang Ehrmann, Claus Winter
  • Patent number: 4281435
    Abstract: Apparatus for hanging sliding doors of a closet include upper and lower track members each of which has a rear wall and guide rails for guidingly supporting the rollers of at least two sliding doors. At least one longitudinally extending groove is formed in each track member and is accessible through the rear wall. A threaded nut is positioned non-rotatably but displaceable lengthwise within each groove. A bracket having a pair of mutually substantially perpendicularly extending legs is connected to each track member by one of its legs. The other leg of each bracket has at least one hole formed therein for reception of a fastening element so that such other leg can be connected to a selected vertical wall of the closet. A threaded fastening element is insertable through the one bracket leg into the groove and is threadedly cooperable with the threaded nut to connect the bracket to the track member.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: August 4, 1981
    Assignee: Inbauproduct Innenausbausysteme GmbH & Co. KG
    Inventors: Claus Winter, Wolfgang Ehrmann