Patents Assigned to Hoover & Wells, Inc.
  • Method and apparatus for cleaning a surface utilizing shot blasting
    Patent number: 4894959
    Abstract: A surface is treated by rotating a blast wheel to direct shot at the surface. The blast wheel is enclosed by a blast head mounted on a frame supported on the surface by a plurality of wheels. At least two of the wheels are driven by hydraulically actuated motors supplied from a reservoir by a first hydraulic pump. A second hydraulic pump is also connected to the reservoir for actuating a fan motor to drive a fan and create suction to draw the shot and loosened contaminants through a filtering system with an automatic purge control.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: January 23, 1990
    Assignee: Hoover & Wells, Inc.
    Inventor: Robert E. Hoover
  • Surface cleaning vehicle
    Patent number: D314257
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: January 29, 1991
    Assignee: Hoover & Wells, Inc.
    Inventor: Robert E. Hoover