Patents by Inventor David J. Papp

David J. Papp 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: 4883590
    Abstract: An adjustable floor drain apparatus having an outer cylindrically shaped body with threads on the inside thereof attached to the top of a drain pipe. A cylindrical member is disposed inside of the outer body so that concrete can be poured around the cylindrical member and the concrete will not enter the outer body. An inner cylindrically shaped body having threads on the exterior thereof is provided for mating with the inside threads on the outer body whereby the inner body can be threaded into the outer body and whereby the top thereof can be adjusted up or down to conform to the height of the finished floor. A ring is adapted to engage the top of the inner body and the ring has a partially spherical surface around the lower periphery thereof which contacts the top of the inner body which also has a complementary shaped partial spherical surface thereon for providing a mating slideable joint between the ring and the inner body. The ring is adjustably attached to the inner body.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: November 28, 1989
    Inventor: David J. Papp
  • Patent number: 4614065
    Abstract: An adjustable cleanout apparatus having an inner cylindrically shaped body with an outer portion thereof having threads thereon, such inner body having a predetermined inner diameter. Holes extend through the bottom of the inner body for permitting the inner body to be attached to an upstanding plumbing cleanout pipe. A lead and oakum joint is formed between the outer top portion of the cleanout pipe and the inner portion of the inner body. A cylindrical member having an outer diameter larger than the diameter of the outer portion of the inner body is utilized to be disposed over the inner body so that a concrete floor poured around the cylindrical member will not come into contact with a substantial portion of the threads of the inner body whereby such cylindrical member can be selectively removed from around the inner body after the concrete is cured.
    Type: Grant
    Filed: May 31, 1985
    Date of Patent: September 30, 1986
    Inventor: David J. Papp