Patents by Inventor William P. Westrate

William P. Westrate 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).

  • Landscape dolly having collapsible legs for facilitating movement of trees for transportation
    Patent number: 7661684
    Abstract: A landscape dolly (200) includes an upper frame (201, 203) and a lower frame (207, 209) attached to the upper frame for supporting the upper frame against a lower surface. The invention utilizes one or more collapsible legs (221, 223) that are positioned on the side of the lower frame for allowing the landscape dolly to move into a tilted position while being transported on a vehicle or with a handle mechanism (500). The handle mechanism (500) is used with removable wheels (300) which allow the dolly to be moved and/or steered into a desired location.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: February 16, 2010
    Inventor: William P. Westrate
  • Tree root ball wrapping apparatus and method of using same
    Patent number: 7353635
    Abstract: A tree root ball wrapping apparatus (100) includes a circular platform (109, 113) for supporting a separable, open-frame, root-containment structure (103, 105, 107) having an inverted conical shape. A group of pivot joints (201, 203, 205, 207) are located at an upper section of the root-containment structure for separating the root-containment structure into half sections. In practice, the group of pivot joints can be opened during tree transplantation for providing removal of a root ball from the wrapping apparatus by opening the sections at the group of pivot joints for easily facilitating removal of the wrapping apparatus (100) from within a transplantation hole.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 8, 2008
    Inventor: William P. Westrate