Patents by Inventor Lawrence H. Pullen

Lawrence H. Pullen 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: 4995138
    Abstract: A vacuum apparatus for debris collection comprises a motor vehicle having a vacuum tank collector and means for generating a vacuum. A horizontally and vertically extendible tube is connected to the vacuum tank collector, and extendible support linkage supports the tube along its length. Means are provided for extending and retracting the support linkage and the tube with respect to the vehicle and the ground while pivoting the tube and support linkage on a support base member pivotally mounted on the vehicle to provide a wide range of motion over the ground surface.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: February 26, 1991
    Inventor: Lawrence H. Pullen