Patents by Inventor Robert W. Butcher

Robert W. Butcher 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).

  • System for collecting solid particles entrained in a gas stream
    Patent number: 4244717
    Abstract: A dust and particle separating and collecting system including a bag and bag support which receives the solid material. The bag acts as a separator as well as a container unit. The material is gathered by entrainment in a gas stream, usually air, and separated and collected in the system. The bag may be used for disposal of the material collected if it is waste material.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: January 13, 1981
    Assignee: General Motors Corporation
    Inventor: Robert W. Butcher