Abstract: A vacuum press for bonding a plurality of laminar substrates that features a processing chamber having an interior portion defined by two side walls, front and rear walls, and a chamber floor. A lower bolster member is disposed within the processing chamber and an upper force transfer member is connected to the lower bolster member such that movement in the upper force transfer member and produces concurrent movement in the lower bolster member. A stationary bolster member that defines a chamber ceiling is maintained between the upper force transfer member and the lower bolster member such that distance between the upper force transfer member and the stationary bolster member can vary. An actuator is connected to the upper force transfer member. The actuator moves the upper force transfer member between a load position and a press position.

Abstract: A vacuum press for bonding a plurality of laminar substrates that features a processing chamber having an interior portion defined by two side walls, front and rear walls, and a chamber floor. A lower bolster member is disposed within the processing chamber and an upper force transfer member is connected to the lower bolster member such that movement in the upper force transfer member and produces concurrent movement in the lower bolster member. A stationary bolster member that defines a chamber ceiling is maintained between the upper force transfer member and the lower bolster member such that distance between the upper force transfer member and the stationary bolster member can vary. An actuator is connected to the upper force transfer member. The actuator moves the upper force transfer member between a load position and a press position.

Abstract: A vacuum injection press for producing molded parts offering near continuous operation, improved part handling capabilities and increased processing speed. The press includes a molding chamber, a door, a parts receiving receptacle and a source of vacuum. A structure defines a sealable molding chamber having an interior region and a passage configured to permit parts molded in the molding chamber to pass into a discharge region. A door is moveable for controlling communication between the interior region and the discharge region. A parts receiving receptacle is moveable into and out of the discharge region. The receptacle defines a parts receiving zone that is isolated from a remainder of the discharge region. A source of vacuum includes a controls for communicating the vacuum source with the molding chamber and for controlling the communication of the vacuum source with the parts receiving zone. A method of producing molded parts is provided.

Abstract: A vacuum press for bonding a plurality of laminar substrates that features a processing chamber having an interior portion defined by two side walls, front and rear walls, and a chamber floor. A lower bolster member is disposed within the processing chamber and an upper force transfer member is connected to the lower bolster member such that movement in the upper force transfer member and produces concurrent movement in the lower bolster member. A stationary bolster member that defines a chamber ceiling is maintained between the upper force transfer member and the lower bolster member such that distance between the upper force transfer member and the stationary bolster member can vary. An actuator is connected to the upper force transfer member. The actuator moves the upper force transfer member between a load position and a press position.

Abstract: A vacuum injection press including frame structure defining a sealable molding chamber having a least one access opening by which molded products are removed. Access to the chamber is controlled by a door assembly that is movable between opened and closed positions. Upper and lower bolsters mount first and second mold portions. The lower bolster is mounted for substantially vertical reciprocal movement towards and away from the upper, fixed bolster and a fluid pressure actuator is used to maintain clamping contact between the first and second mold portions when the lower bolster is moved into a clamped position with respect to the upper bolster. An injection molding unit is located outside of the chamber and provides molding compound to a cavity defined by the mold portions. Molding compound is delivered from the injection unit to the cavity defined by the mold portions via an injection nozzle forming part of the upper, fixed bolster.

Abstract: A laminating apparatus for bonding a plurality of substrates to form a unitary laminated product such as a printed circuit board. The machine includes a frame defined by a pair of parallel, spaced vertical side plates and upper and lower load bearing cross beams extending between said side plates. The frame defines a processing chamber including front and rear openings by which access to the chamber is provided. A plurality of platen assemblies are positioned within the chamber and front and rear doors are sealingly engageable with the frame to seal the chamber from atmosphere. One door is hingedly connected to the frame whereas the other door forms part of a door assembly that includes a trackway pivotally mounted to the processing unit for movement between adjacent and spaced positions. The other door is slidable along the trackway and is driven by a fluid pressure operated actuator.