Patents by Inventor Ludwig Lang

Ludwig Lang 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).

  • Multiple part toothbrush having an exchangeable brush head
    Patent number: 4461053
    Abstract: A multiple part toothbrush includes a handle stem having a connecting part projecting outwardly from one end thereof and extending in a direction which forms an angle of about 7.degree. with respect to the handle stem. A brush head has a cavity therein, the connecting part being snugly receivable within the cavity to effect a removable mounting of the brush head on the handle stem. The connecting part can be inserted into the brush head cavity with either of two different orientations, whereby two different orientations of the plane defined by the bristle ends with respect to the handle stem are possible.
    Type: Grant
    Filed: May 19, 1982
    Date of Patent: July 24, 1984
    Inventors: Klaus Nitzsche, Ludwig Lang, Ortulf G. Lang
  • Device for the indication of different operating conditions of motor vehicles
    Patent number: 4255739
    Abstract: Device for the indication of different operating conditions of motor vehicles, particularly automobiles, with a number of light sources which are coordinated to the individual operating conditions, a corresponding number of focusing hoods receiving the light sources, the focusing hoods being arranged in a row adjacent to one another, an inspection glass covering the focusing hoods on its end which faces the observer and a strip printed with symbols, which strip is insertable between the focusing hoods and the inspection glass, the strip being translucent to light at least in the area of the symbols, and means for pressing the strip on the front sides of the focusing hoods. Elevations projecting against the inspection glass are engraved into the strip.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: March 10, 1981
    Assignee: VDO Adolf Schindling AG
    Inventor: Wilhelm-Ludwig Lang
  • Releasably fixed mouthpiece as device for drinking from a container
    Patent number: 4239123
    Abstract: A mouthpiece for use on a container having a tear-open closure slot therein. The mouthpiece has a conically-shaped mounting portion at one end and a tapered projection at the other end and about which the mouth of the user can be placed. An opening extends axially through the mouthpiece and an air supply opening is provided through the mounting portion. The mounting portion is adapted to be snugly inserted into the opening in the container to form a liquid tight seal thereat. The mouthpiece is to be kept in a sealed package. As a result, the bacteria in and around the opening to the container will be prevented from coming into contact with the user when the user uses the aforesaid mouthpiece in association with the container.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: December 16, 1980
    Inventors: Ludwig Lang, Ortulf G. Lang