Patents by Inventor Adrianus Reinier VAN Liempt

Adrianus Reinier VAN Liempt 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).

  • Devices for the cleaning of heating surfaces
    Patent number: 3971343
    Abstract: This invention relates to devices for cleaning the surfaces of pipes, and, in one embodiment particularly useful for cleaning the surfaces of suspended pipe coils in boilers, comprises a drive-cylinder actuated, two-armed lever, interconnected with the pipes to be cleaned by means of upper and lower connectors, wherein the arms of the lever are unequal in length and the distance c of its pivot point below the suspension level of the pipe coils with which it is associated, is equal to 2ab/(a+b),Where a is the distance of the upper connector from said suspension level and b is the distance therefrom of the lower connector.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: July 27, 1976
    Assignee: Deutsche Babcock & Wilcox Aktiengesellschaft
    Inventors: Erich Ulrich, Adrianus Reinier VAN Liempt