Patents by Inventor Darius C. Matonis

Darius C. Matonis 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).

  • Coupling system for relatively thick-walled tubes
    Patent number: 5372390
    Abstract: A coupling system for maintaining an end of a tube in substantially sealed alignment within an aperture in a wall, in which the tube is held by a clamp member affixable to the wall adjacent the aperture. A tube end is provided which is formed by a first tube tip member and a second tube tip member which fits concentrically around the first tube tip member. The second tube tip member has a wall thickness substantially less than that of the first tube tip member, and has a radially outwardly projecting annular bead formed thereon. The first tube tip member and the second tube tip member are affixed to each other, but limited axial movement of a portion of the first tube tip member relative to a portion of the second tube tip member is permitted.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: December 13, 1994
    Assignee: Senior Engineering Investments, B.V.
    Inventors: Donald J. Conway, Darius C. Matonis