Patents by Inventor John Bradley Wagner

John Bradley Wagner 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).

  • Nose piece for screwguns
    Patent number: 4030383
    Abstract: An attachment for a screwgun for driving screws to a predetermined depth. The device consists of a base member formed with threads for threadable attachment to the head of a screwgun a sleeve formed with threads for threadable attachment to the base member and a spring attached to the base and bearing against the sleeve for holding the sleeve in a preselected position.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: June 21, 1977
    Inventor: John Bradley Wagner
  • Piercing sharp pointed gypsum board screw for metal studs
    Patent number: 3942405
    Abstract: A screw having a shank and a tapered portion with an especially sharp point for attaching gypsum board to metal building studs having multiple threads occuring within the other in the body portion. In the tapered portion of the screw one of the threads gradually decreases in diameter and fades into the tapered portion of the shank and terminates. The other thread continues on toward the point end, decreases in diameter and fades into the tapered portion of the shank at a point nearer the pointed end of the screw.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: March 9, 1976
    Inventor: John Bradley Wagner