Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to heat or cool
Patent
1990-04-18
1991-05-21
Heitbrink, Timothy
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to heat or cool
2643288, 26432815, 425568, 425569, 425572, 425588, B29C 4522
Patent
active
050171275
ABSTRACT:
A nozzle assembly for mounting on a cold runner block has a cooled housing with a bore and a nozzle member with a shaft portion mounted in the bore for rotation about a bore axis. A cap portion of the nozzle member is connected to the shaft portion and has a surface for positioning close to the mold surface of a mold member. A mold cavity in the mold member has a mold orifice in the mold surface for alignment with a nozzle opening in the surface of the cap portion. The nozzle opening is positioned radially outward from the bore axis and is rotatable into alignment with the mold orifice upon rotation of the nozzle member. A nozzle passage extends from the nozzle opening to the bore for communicating a fluid molding material to the mold cavity. A spring device may be disposed between the housing and the nozzle member to urge the surface of the nozzle member towards the mold surface. A ball member with a flat sealing surface may be mounted in a spherical recess in the surface of the cap portion. The nozzle opening is in the flat sealing surface so that upon alignment of the nozzle opening with the mold orifice the ball member can rotate in the spherical recess and provide sealing engagement of the flat sealing surface with the flat mold surface of the mold member.
REFERENCES:
patent: 3809519 (1974-05-01), Garner
patent: 3915610 (1975-10-01), Kohler
patent: 4589839 (1986-05-01), Kurumaji et al.
patent: 4652230 (1987-03-01), Osuma-Diaz
patent: 4676730 (1987-06-01), Yamasaki
patent: 4787840 (1988-11-01), Gellert
patent: 4793795 (1988-12-01), Schmidt et al.
patent: 4808355 (1989-02-01), Kamiyami et al.
patent: 4826416 (1989-05-01), Majerus et al.
Chlebina Larry E.
Majerus Norbert
Rambacher John S.
Heitbrink Timothy
Lacher Frederick K.
Lewandowski T. P.
The Goodyear Tire & Rubber Company
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