Patents Assigned to NEP Systems, Inc.
  • Method for joining plastic materials together
    Patent number: 5599419
    Abstract: A method and apparatus for joining plastic profile members together, particularly to form picture frames. The profile members are held in place by fixture members against a locator member. The locator member is withdrawn and a heated blade positioned between the ends of the profile members. The profile members are moved against the thin blade and the end surfaces are heated to an elevated temperature. The blade is removed and the ends are welded together. During a cooling period, the retracted blade can be cleaned as desired by a blade cleaning mechanism. After the joined profiles are removed, the members are returned to positions to begin another cycle.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 4, 1997
    Assignee: NEP Systems, Inc.
    Inventors: Kenneth W. Hunter, Gerald Paoletti
  • Apparatus for joining plastic materials together
    Patent number: 5584960
    Abstract: A method and apparatus for joining plastic profile members together, particularly to form picture frames. The profile members are held in place by fixture members against a locator member. The locator member is withdrawn and a heated blade positioned between the ends of the profile members. The profile members are moved against the thin blade and the end surfaces are heated to an elevated temperature. The blade is removed and the ends are welded together. During a cooling period, the retracted blade can be cleaned as desired by a blade cleaning mechanism. After the joined profiles are removed, the members are returned to positions to begin another cycle.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: December 17, 1996
    Assignee: NEP Systems, Inc.
    Inventors: Kenneth W. Hunter, Gerald Paoletti