Patents Assigned to Roll-Tech, Inc.
  • Patent number: 6872353
    Abstract: A molding method utilizing a moveable mold platen which may hold, have affixed to, or carry a first portion of a mold or molds. A second or door platen may hold, have affixed to, or carry a second portion of a mold or molds. The door platen is placed in its closed position, and the moveable mold platen is brought up adjacent to it, so that the two portions of the mold are brought into engagement with one another. A desired molding material is injected into the mold cavity, after which the moveable platen is retracted, the door platen is opened, and the part is removed. A part to be encapsulated may be placed into the mold before the two portions of the mold are brought into engagement.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: March 29, 2005
    Assignees: Libbey-Owens-Ford Co., Roll-Tech, Inc.
    Inventors: John H. Gillen, Charles E. Ash, John M. Clark
  • Patent number: 6638046
    Abstract: An apparatus for molding and a molding method utilizing a moveable mold platen which may hold, have affixed to, or carry a first portion of a mold or molds. A second or door platen may hold, have affixed to, or carry a second portion of a mold or molds. The door platen is placed in its closed position, and the moveable mold platen is brought up adjacent to it, so that the two portions of the mold are brought into engagement with one another. A desired molding material is injected into the mold cavity, after which the moveable platen is retracted, the door platen is opened, and the part is removed. A part to be encapsulated may be placed into the mold before the two portions of the mold are brought into engagement.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: October 28, 2003
    Assignees: Libbey-Owens-Ford Co., Roll-Tech, Inc.
    Inventors: John H. Gillen, Charles E. Ash, John M. Clark
  • Patent number: 6626659
    Abstract: A molding method and apparatus is shown which utilizes a plasticizing or injection unit in combination with a horizontal booking press having a first or moveable mold platen carrying a first portion of a mold or molds, and a second, or fixable, door platen carrying a second portion of a mold or molds. The door platen swings open and closed on a hinge, and is fixable in its closed position. When the moveable mold platen is in its′ closed position adjacent the fixed position of the door platen, a mold cavity is formed by the first and second portions of the mold or molds, and material is injected into the mold cavity.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: September 30, 2003
    Assignees: Libbey-Owens-Ford Co., Roll-Tech, Inc.
    Inventors: Charles E. Ash, John H. Gillen, John M. Clark
  • Patent number: 5881495
    Abstract: A combination turf stake and frame construction assembly for establishing a framework construction upon a ground surface. The turf stake includes an elongate spike portion having a first inserting end, a second supporting end and a plurality of vane portions projecting in circumferentially spaced apart and axially directed fashion substantially along the spike portion. A substantially polygonal shaped body defining a hollowed and interior cavity is integrally formed atop the second supporting end of the turf stake and substantially corresponds to a likewise polygonally shaped and inserting end of a selected elongate frame construction member so as to engage the elongate member in a friction fit manner. A plurality of turf stakes and frame construction members can be employed to assemble any desired framework construction.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: March 16, 1999
    Assignee: Roll-Tech, Inc.
    Inventor: J. Matthew Clark