Patents by Inventor Carl Clintberg

Carl Clintberg 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: 4919202
    Abstract: A sucker rod guide bearing attachable at each end to a sucker rod coupling for interconnecting sucker rod sections and centering the sucker rods with respect to a well casing, the bearing includes a cylindrical body with a threaded stud at each end for connection to corresponding sucker rod couplings. A vaned cylindrical wheel is slidably mountable over the body and has a length slightly less than that of the body so as to remain free wheeling. The bearing end surfaces formed between each of the studs in the cylindrical surface of the body for pressing torque transfer engagement with a sucker rod coupling end surface.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: April 24, 1990
    Inventor: Carl Clintberg