Patents by Inventor Carl R. Tamm

Carl R. Tamm 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: 4909481
    Abstract: A wire pulling guide for use with an electrical conduit elbow having opposed side walls, opposed end walls and a floor, the walls and floor forming a generally rectangular elbow cavity, and a plurality of connector apertures in the elbow communicating with the cavity, the guide comprising a body having a base, support means extending upwardly therefrom, roller means on the support means, and clamp means on the support means, the body being adapted for positioning in the elbow cavity with the working surface of the roller aligned with a connector aperture, and with portions of the elbow in contact with the clamp means.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: March 20, 1990
    Inventor: Carl R. Tamm