Patents by Inventor Elmer L. Malcolm

Elmer L. Malcolm 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: 4279051
    Abstract: A water powered cleaning device is disclosed with particular utility for car washing. The hand held device has a motor powered by water supplied under pressure, which motor operates a rotary brush lubricated by water flowing through the motor. A water switching arrangement permits selection of direct water spray from the device or brush rotation, which is adapted to remove dirt and film left after completion of the spraying operation. In one primary form of use of the device, the user carries the device to a conventional self-service car wash facility, attaches the device to the metal pipe outlet, wherein water under pressure is furnished.
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: July 21, 1981
    Inventor: Elmer L. Malcolm