Patents by Inventor Bjorn Raab

Bjorn Raab 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).

  • Apparatus for automatic lubricant delivery
    Patent number: 6012551
    Abstract: An automatic lubricant-dispensing device with a piston (3) disposed in a cylinder (4) and an electric motor drive unit (1,2) connected thereto has a circuit closer (21) to protect the device against moisture and/or explosion.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: January 11, 2000
    Assignee: Gerhard Dohring
    Inventor: Bjorn Raab