Patents by Inventor Wilbur Stewart

Wilbur Stewart 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: 5568622
    Abstract: Method and apparatus to reduce the number of control words stored in a read only control store of a microprogrammed unit of the CPU of a large scale computer. A set of control fields are required to control the active elements of the unit to cause the unit to execute a large number of different basic operations. Typically the required set of control fields are included in control words stored in a control store controlling the unit during the execution of a basic operation. Obtaining some of the set of required control fields from other sources available within the unit results in a significant reduction in the number of control words stored in the control store without reducing the functionality of the unit.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: October 22, 1996
    Assignee: Bull HN Information Systems Inc.
    Inventors: Wilbur Stewart, Richard L. Demers, Ronald E. Lange
  • Patent number: 5373782
    Abstract: A crushing attachment is provided for removable support from the lift arms of a front loader and the attachment includes a pair of horizontally spaced apart forwardly projecting lower support arms which taper forwardly in height. The attachment also includes a pair of forwardly projecting crusher arms spaced above and in vertical alignment with the support arms and pivotally supported relative to the support arms for vertical swinging about a horizontal transverse axis extending between the rear ends of the crusher arms. The crusher arms are interconnected by a plurality of reinforcing bars extending and secured therebetween at points spaced longitudinally along the crusher arms and hydraulic cylinders are operatively connected between the crusher arms and the support arms for angularly displacing the crusher arms relative to the support arms.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: December 20, 1994
    Inventors: Wilbur Stewart, Eric R. Stewart