Patents by Inventor David Dean Walker

David Dean Walker 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).

  • Precision heavy duty indexer
    Patent number: 4080849
    Abstract: A precision heavy duty indexer characterized in that the indexing member thereof is positively locked to the indexer housing in desired precise axial, radial and angular indexed position by interengaged gear means of said indexing member and said housing, and is unlocked for indexing movement by disengaging said gear means, the gear means of said housing being carried by the outer peripheral portion of a laterally flexible pneumatic or hydraulically-actuated diaphragm having its inner peripheral portion fixed to the housing.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: March 28, 1978
    Assignee: Erickson Tool Company
    Inventors: Milton Lloyd Benjamin, David Dean Walker, Wilbur Nelson Miles