Patents by Inventor Emerson V. Purkapile

Emerson V. Purkapile 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).

  • Workbench
    Patent number: 4239195
    Abstract: An improved workbench includes collapsible legs, tool holders attachable to the legs, extensible auxiliary support legs, a generally planar bench top with a removable section for power tools and a pair of adjustable vises cooperative with the planar top. The adjustable vises include a mechanism for gross and fine adjustment and additionally include gripping jaws that are pivotal.
    Type: Grant
    Filed: July 2, 1979
    Date of Patent: December 16, 1980
    Assignee: Waterloo Industries, Inc.
    Inventors: John P. Oltman, Emerson V. Purkapile