Patents by Inventor Charles M. Beall, Jr.

Charles M. Beall, Jr. 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).

  • Rotary screw compressor with slide valve and slide stop guidance bushings
    Patent number: 6409490
    Abstract: In a screw compressor, guide bushings are mounted within bores for the bearings which support rotor shafts for the compressor. First bushings are provided at an inlet casing of the compressor and provide guidance for a slide stop and second bushings are provided in an outlet casing of the compressor to provide guidance for a slide valve. The bushings are also mounted to the inlet and outlet casings to provide centering for two sections of the compressor rotor housing. In one embodiment the first and second bushings provide guidance for a slide valve.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: June 25, 2002
    Assignee: York International Corporation
    Inventors: Paul Nemit, Jr., Charles M. Beall, Jr.