Patents by Inventor Hartmut Waldchen

Hartmut Waldchen 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: 5368128
    Abstract: An elevator cable lubricating apparatus including a pair of spray pipes extending on opposite sides of a path of travel of elevator cables and being connected to a feed pipe supplying lubricant under pressure. Each of the spray pipes includes a separate nozzle directed toward an associated one of the elevator cables. The apparatus is releasably mounted on two spaced apart supports by pipe clips. The supports also rotatably retain a pair of distributing rollers extending beneath respective ones of the spray pipes. The rollers are slidable toward and away from the rollers in slots formed in the supports and include soft surfaces which embrace the elevator cables and distribute the lubricant sprayed from the nozzles over the entire circumference of the elevator cables. By utilizing only one of the spray pipes and rollers, any linearly moving or rotating machine parts can be lubricated.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: November 29, 1994
    Assignee: Inventio AG
    Inventor: Hartmut Waldchen