Patents by Inventor Gerd Wilhelm Cromm

Gerd Wilhelm Cromm 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).

  • Multi-stage no-oil gas compressor
    Publication number: 20050193763
    Abstract: A multi-stage compressor comprises a variable speed electrically driven rotodynamic compressor stage connected in series with and upstream of a water lubricated screw compressor stage and an intercooler arranged between the two compressors to reduce the temperature of gas entering the screw compressor stage. In the invention, the intercooler is a water spray intercooler, the water supply of which is shared with that of the water lubricated screw compressor.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 8, 2005
    Applicant: Corac Group PLC
    Inventors: Adrian Alford, Gerd Wilhelm Cromm, Julian Oliver Reed