DATAMP

Tool related patents are entered at datamp.org (Directory of American Tool and Machinery Patents) by a handful of volunteers. Below are the five most recently added patents. There is information about joining in on the fun at the bottom of http://www.datamp.org/ This page is automatically refreshed every six hours. As mentioned on the Patent Searching page, one of easiest ways to find a tool patent is to look for it in datamp. With any luck someone will have already found the patent you are looking for and entered it at datamp.org.

 

 

 
Datamp.org Patents
Recently added patents
  • US Patent: 1,898,568
    Tool Patentee: Frederick F. Pazzano - Waltham MA Granted:1933-02-21
    Manufactured by Pazzano Wrench Company - Waltham MA

    A pliers type tool with jaws designed to serve as a wrench for the clamp bolt nut, a lifter to remover the terminal from the battery post, and a spreader and reamer for the terminal clip. The patent appears on a stamped steel version of the tool, and a version made of forgings. The revised drawings accompanying reissue patent RE19,027 illustrate the tool in use.
    This is one of 56,531 patents currently in the database at datamp.org

  • US Patent: D27,471
    Design For A Wrench Patentee: Samuel T. Freas - Trenton NJ Granted:1897-08-03
    Manufactured by Whitman & Barnes - Chicago IL
    Assigned to American Saw Co. - Trenton NJ

    Single alligator wrench opening, with tapered wrench slot in handle, and small screwdriver on end of handle. Some wrenches marked with the patent date do not have the screwdriver but otherwise conform to the design.
    This is one of 56,531 patents currently in the database at datamp.org

  • US Patent: 623,800
    Wrench Patentee: James L. Martin - Marion Center PA Granted:1899-04-25
    Assigned to Edgar C. Wynkoop - Marion Center PA

    The jaws tend to spring apart and the screw and thumb nut close them. The rigidity of the spring prongs that form the jaws mean they resist any tendency to spring or twist sideways. A known example is approx. 7 1/2 inches long overall, and is marked with the patent date.
    This is one of 56,531 patents currently in the database at datamp.org

  • US Patent: 240,866
    Clasp for adjusting hammocks Patentee: Vincent P. Travers - New York NY Granted:1881-05-03

    Submitted as a What's It to mwtca. Marked with the patent date
    This is one of 56,531 patents currently in the database at datamp.org

  • US Patent: 965,722
    Chain Repairing Implement Patentee: John N. Macdonald - Hartford CT Granted:1910-07-26
    Manufactured by J. N. Macdonald & Co. - Weathersfield CT

    The jaw features are designed to spread and close links on tire chain cross bars. A 1912 ad for the NECESSITY Chain Repair Tool shows a version close in appearance to Macdonald's subsequent patent (no. 1,041,826).
    This is one of 56,531 patents currently in the database at datamp.org



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