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
2007-02-09
2011-11-15
Del Sole, Joseph (Department: 1743)
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
C264S279000, C264S279100, C264S272110
Reexamination Certificate
active
08057723
ABSTRACT:
Provides is a method of manufacturing an insert-molded article enabling to perform resin molding and tie bar cutting in one step and so as not to expose the cut planes of the tie bars to the external surface of the resin. A lead frame1provided with easily breakable notches3aat positions closer to the metal component than the interfaces of tie bars3to be resin molded is prepared and positioned by means of pilot pins11provided to a lower mold10. A metal component4is sandwiched between support protrusions13and component fixing pins24by lowering an upper mold20with the lead frame being positioned. Tie bar cutting punches23provided to the upper mold20are pressed against the tie bars, the tie bars3are separated from the metal component4by breaking the notches3a, and the surroundings of the metal component4are filled with resin while the molds are closed. By this, the cut surfaces between the metal component4and the tie bars3are buried in the molded resin7.
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International Search Report (with English translation) from corresponding International application dated Aug. 1, 2006.
Written Opinion from corresponding International application dated Aug. 1, 2006.
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 129683/1986 (Laid-open No. 037211/1988) dated Mar. 10, 1988.
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 155032/1986 (Laid open No. 061129/1988) dated Apr. 22, 1988.
Kaishita Nihei
Kitamura Makoto
Takeda Takeshi
Del Sole Joseph
Dickstein & Shapiro LLP
Murata Manufacturing Co. Ltd.
Stewart Kimberly A
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