Patents by Inventor Alfred Nuesslein

Alfred Nuesslein 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).

  • Tube closure device
    Patent number: 4282982
    Abstract: A closure device which seals against the internal circumferential surface of a tube by an O-ring seal between a plug member and the circumferential surface and the plug being held in the tube by a plurality of segmented members that are positioned around the plug and pressed against the O-ring seal and the internal circumference of the tube by means on the plug that forces the segments into contact with the O-ring seal and the internal circumference of the tube.
    Type: Grant
    Filed: March 11, 1980
    Date of Patent: August 11, 1981
    Inventor: Alfred Nuesslein