Patents Assigned to GR Systems
  • Press apparatus and methods for fusing overlapped thermoplastic sheet materials
    Patent number: 5725711
    Abstract: Press-type apparatus for thermally bonding thermoplastic sheet material workpieces is provided with a pair of opposed platen assemblies which each include an inflatable set of compliant diaphragm members, a pair of opposed heat sources which may be brought into and retracted from contact with the diaphragm members, and a source of pressurized fluid for inflating the diaphragm sets and for cooling the heated workpieces. The method for operating the press-type apparatus basically involves both heating and cooling the assembled workpieces while they are simultaneously being retained in a condition of being clamped by the inflatable sets of the diaphragm members.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: March 10, 1998
    Assignee: GR Systems
    Inventor: Philip A. Taylor
  • Press apparatus and methods for fusing overlapped thermoplastic sheet materials
    Patent number: 5635014
    Abstract: Press-type apparatus for thermally bonding thermoplastic sheet material workpieces is provided with a pair of opposed platen assemblies which each include an inflatable set of compliant diaphragm members, a pair of opposed heat sources which may be brought into and retracted from contact with the diaphragm members, and a source of pressurized fluid for inflating the diaphragm sets and for cooling the heated workpieces. The method for operating the press-type apparatus basically involves both heating and cooling the assembled workpieces while they are simultaneously being retained in a condition of being clamped by the inflatable sets of the diaphragm members.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: June 3, 1997
    Assignee: GR Systems
    Inventor: Philip A. Taylor