Patents by Inventor Dale D. Elvebak

Dale D. Elvebak 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: 5881615
    Abstract: The present invention relates to a screwdriver adapted for use with one or more replaceable bits. The screwdriver includes a shaft adapted to selectively form a torque transmitting engagement with the bit. A handle is mounted on the shaft. The handle includes an outwardly opening groove sized and shaped for receiving and storing each bit. Each groove extends longitudinally along the length of the handle. The handle also includes a panel for selectively retaining the bit in each groove. The panel is constructed and arranged to slide longitudinally along the groove between a first bit retaining position and a second bit non-retaining position. A method of assembly includes inserting opposing edges of the panel into opposing slots of the groove, and then connecting an end cap to the handle to prevent removal of the panel.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: March 16, 1999
    Assignee: Enderes Tool Company, Inc.
    Inventors: Todd Kevin Dahl, Dale D. Elvebak
  • Patent number: 5335409
    Abstract: A screwdriver is provided with a handle including an insert and an O-ring wherein the O-ring is positioned between the insert and a shoulder in the opening into the handle. A bit is held in the handle by the O-ring. A method of assembly is provided wherein an O-ring and an insert member are positioned around a shaft of a bit and then the bit is inserted into a handle, followed by the O-ring and the insert. The bit is removed from the handle leaving the O-ring positioned between the insert and a shoulder of the handle, for subsequent receipt of the same end of the bit, another end of the bit, or a different bit.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: August 9, 1994
    Assignee: Enderes Tool Co., Inc.
    Inventor: Dale D. Elvebak