Patents by Inventor Philip C. English

Philip C. English 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: 4947510
    Abstract: A vacuum box is for collecting small particles or the like. the vacuum box includes a cabinet having a front, a rear and a hollow interior. The front of the cabinet includes a substantially horizontal working surface at a lower region thereof. The working surface includes an air inlet opening therethrough. A motor and fan are disposed within the hollow interior of the cabinet at the rear thereof for the discharge of air from the hollow interior of the cabinet. A collection compartment is disposed below the working surface and the air inlet opening therethrough with a rear portion of the collection compartment being disposed within the interior of the cabinet. A filter is disposed within the interior of the cabinet between the collection compartment and the fan. The fan causes the air including the particles produced at the working surface to be drawn downwardly through the air inlet opening into the collection compartment, upwardly from the rear portion of the collection compartment, and through the filter.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: August 14, 1990
    Inventor: Philip C. English