Patents Assigned to IntraPac (Swedesboro) Inc.
  • Method of testing a seal
    Patent number: 7748098
    Abstract: The present invention is for a method of testing a seal on a collapsible tube dispensing orifice during the manufacturing process in an assembly line. Air pressure is applied within the tube wall, at a station in the line, on one side of the seal, and the pressure is monitored on the other side of the seal within a reciprocating cover, for any increase in pressure which would indicate a leak in the seal.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: July 6, 2010
    Assignee: IntraPac (Swedesboro) Inc.
    Inventors: Joseph P. Hayes, Carl B. Schartner, William D. Brennan