Patents by Inventor Stephen F. Sims

Stephen F. Sims 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).

  • Selection switch for fluid power motors
    Patent number: 5213136
    Abstract: A device for retaining a depressed reversing valve in the depressed position which is operable by the fingers or thumb of one hand to accomplish both the depressing and locking motions and the unlocking motion when it is desired to return the tool to conventional push to reverse operation. This is accomplished by a notched rotary sleeve mounted to the tool housing.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: May 25, 1993
    Assignee: The Aro Corporation
    Inventors: Phil D. Thorp, Stephen F. Sims
  • Valve construction for automatic shut-off screwdrivers and the like
    Patent number: 5159987
    Abstract: A valve construction for dual valve automatic and manual shut-off screwdrivers and the like wherein construction of the valve features both valve elements in a central axial bore having a unique valve block which is held in place by a screw in a transverse bore, the unique construction permits operation of the manual valve by a pin in the cross bore, aligns the stem of the manual valve, and permits ready access to the stem and valve of the automatic shut-off device as well as assembly of all of the components through access in a single longitudinal bore.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: November 3, 1992
    Assignee: The Aro Corporation
    Inventors: Phil D. Thorp, Stephen F. Sims