Patents by Inventor Robert B. Carruthers

Robert B. Carruthers 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: 5915482
    Abstract: A new hand tool with interchangeable attachments for providing a gardener with several tools while requiring a single handle. The inventive device includes a handle portion having a dowel extending therethrough upwardly of a lower end thereof. The dowel has diametrically opposed end portions extending outwardly of the handle portion. A shank portion couples with the handle portion. The shank portion has a recess extending within an upper end thereof. The recess is dimensioned for receiving the lower end of the handle portion therein. The upper end has a pair of diametrically opposed vertical slots extending downwardly thereof in communication with the recess. The vertical slots slidably receive the opposed end portions of the dowel of the handle portion. A collar member is slidably disposed on the handle portion. The collar member has an externally threaded open upper end and an outwardly flared open lower end. The open lower end has a pair of diametrically opposed recesses extending upwardly thereof.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: June 29, 1999
    Inventor: Robert B. Carruthers