Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2006-12-19
2009-10-27
Lee, Edmund H. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S255000, C264S275000, C264S297600, C264S297200, C264S297300, C264S328800
Reexamination Certificate
active
07608212
ABSTRACT:
Procedure and molding tool for the molding of both one- or multi-component parts preferably of plastics, possibly with an integrated insertion of parts of another material as steel and copper, where the turnable middle section during the molding is supplied with material on at least one of the surfaces/areas, that in contrary to the normal procedures are not at a right angle to the closing direction between the stationary mold part and the movable mold part of the tool. This can e.g. be realized by molding a part or a piece of a part and/or by molding around a special part for the in-molding on at least one of these surfaces/areas of the turnable middle section. This molding and/or insertion can take place while the tool is closed and on several surfaces at the same time, which saves cycle time. The tool according to the invention can substitute or supplement a jaw tool because the turnable middle section in connection with the opening and closing of the stationary mold part and the movable mold part makes these serve as an extra set of jaws.
REFERENCES:
patent: 3224043 (1965-12-01), Sieben et al.
patent: 3707591 (1972-12-01), Chalfant
patent: 4243362 (1981-01-01), Rees et al.
patent: 4444711 (1984-04-01), Schad
patent: 4449913 (1984-05-01), Krishnakumar et al.
patent: 4734023 (1988-03-01), Nesch et al.
patent: 4836767 (1989-06-01), Schad et al.
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