发明名称 Door and method of making same
摘要 A door and method for fabrication of unitary six panel steel doors wherein frames members (stiles and rails or headers) are fabricated by forming metal stock into a cross-sectional channel configuration, cutting and swaging the channels into predetermined lengths. The stiles and rails of the frame members are swaged to provide frictional interconnection at the corners thereof upon assembly of the frame members (stiles and rails) into a rectangular frame configuration. Assembly of the frame is accomplished in a shuttle having two assembly jigs. Upon assembly, each frame is moved by the shuttle into a molding press wherein a panel of foam is molded within the frame. The shuttle moves back and forth through the molding press in a manner which provides for removal of a completed panel and assembly of an additional frame from one jig of the shuttle while the molding operation is accomplished within the molding press upon a frame retained within the other jig of the shuttle. Steel skins are secured to each side of the six panel steel doors leaving a border in the order of one-eighth inch (⅛'') on each face of the door.
申请公布号 US6389769(B1) 申请公布日期 2002.05.21
申请号 US20000610258 申请日期 2000.07.05
申请人 EFP CORPORATION 发明人 MCKINNEY MATTHEW M.;LAFONTAINE ROBERT L.;SURBER JAMES D.
分类号 E06B3/70;E06B3/72;E06B3/76;E06B3/82;(IPC1-7):E04C1/00 主分类号 E06B3/70
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