Patents by Inventor David E. Starke

David E. Starke 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).

  • Masonry anchor installation tool
    Patent number: 5142954
    Abstract: A hole drill/fastener driving tool has a drive tube and a nut driver. A declutching sleeve which is intended to remain stationary during fastener driving receives the nut driver with the hex end of the nut driver passing through the closed end of the sleeve into the drive tube. A spacing is defined between the front of the nut driver and sleeve for declutching the nut driver when the screw is set.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: September 1, 1992
    Assignee: Emhart, Inc.
    Inventor: David E. Starke
  • Masonry screw anchor
    Patent number: 5061136
    Abstract: A masonry screw anchor having two different constant diameter shank portions connected via a taper. Each portion has a set of constant diameter threads and intermediate smaller diameter protrusions with the threads and protrusions on the larger diameter shank portion being larger in diameter than the diameter of the threads and protrusions on the smaller diameter portion.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: October 29, 1991
    Assignee: Emhart Inc.
    Inventors: Tony L. Dixon, David E. Starke, Frank Piacenti, Robert W. Brown, Jr.
  • Screw anchor
    Patent number: 5044849
    Abstract: A two part screw anchor which is interconnected by capturing a pin on the receiving bore of a cap in an arcuate slot on the received cylinder of a collapsible part. The collapsible part is metal and the cap (and hence pin) are plastic so that by pushing the collapsible part away from the installed cap the pin will be severed and the two parts can be separated.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: September 3, 1991
    Assignee: Emhart Inc.
    Inventor: David E. Starke
  • Setting tool for blind fasteners
    Patent number: 4386515
    Abstract: A tool for installing and setting blind fasteners is disclosed. The tool includes a collet and mandrel arrangement for engaging and setting blind fasteners. The collet is biased in a manner which produces an engagement with the end of the blind fastener insert when the mandrel moves rearward.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: June 7, 1983
    Assignee: USM Corporation
    Inventor: David E. Starke
  • Masonry screw anchor
    Patent number: RE34969
    Abstract: A masonry screw anchor having two different constant diameter shank portions connected via a taper. Each portion has a set of constant diameter threads and intermediate smaller diameter protrusions with the threads and protrusions on the larger diameter shank portion being larger in diameter than the diameter of the threads and protrusions on the smaller diameter portion.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: June 13, 1995
    Assignee: Emhart Inc.
    Inventors: Tony L. Dixon, David E. Starke, Frank Piacenti, Robert W. Brown, Jr.