METHOD FOR PRODUCING A MOLDED PART
    1.
    发明公开

    公开(公告)号:US20240342966A1

    公开(公告)日:2024-10-17

    申请号:US18368733

    申请日:2023-09-15

    发明人: Simon Scheuer

    摘要: A method for producing a molded part from a foamed plastic in a mold cavity which is delimited by walls of an at least two-part, open- and closable molding tool including the steps: closing of the molding tool to prepare the mold cavity; pouring a particulate granulate of the plastic into the mold cavity; heating the granulate through the introduction of steam into the filled mold cavity at such a temperature and steam pressure that the granulate expands and is melted to form a molded part; cooling the molded part in the mold cavity; opening the molding tool and removal of the molded part, wherein the steam that is introduced into the mold cavity is conveyed through steam chambers which are positioned on the side of the walls of the molding tool opposite from the mold cavity and communicate with the mold cavity by openings that pass through the walls, and wherein before and/or during the closing of the molding tool, a temperature control medium inside the walls of the molding tool is guided in a cavity which does not communicate with the steam chambers and mold cavity, in order to preheat the walls, and the walls of the molding tool are preheated to a temperature that is suitable for the melting of the granulate to form the molded part.

    POLYMER FOAM SYSTEM AND METHOD
    5.
    发明公开

    公开(公告)号:US20240051196A1

    公开(公告)日:2024-02-15

    申请号:US18492726

    申请日:2023-10-23

    申请人: HiTek Fabrication

    发明人: Shawn Bright

    摘要: A system for producing foams for prosthetics and orthotics include a heated housing that stores monomer containers, temperature-controlled hoses separately coupled with the containers and configured to receive monomers from the containers, a dispensing gun assembly fluidly coupled with the containers by the hoses, and a computer controller configured to control a dispensing time period during which the monomers are dispensed from the containers and through the hoses to the dispensing gun assembly and dispensed out of the dispensing gun assembly as a polymer foam. The controller is configured to stop dispensing of the polymer foam out of the dispensing gun assembly upon expiration of the dispensing time period.