Static molds – Container-type molding device – Including auxiliary port for transmission of fluid – i.e.,...
Reexamination Certificate
2005-03-29
2005-03-29
Mackey, James P. (Department: 1722)
Static molds
Container-type molding device
Including auxiliary port for transmission of fluid, i.e.,...
C415S028000, C415S189000
Reexamination Certificate
active
06871831
ABSTRACT:
A vent for a mold having a mold cavity comprises a valve member housed within a main body sleeve and reciprocally moveable therein in an axial direction between open and closed positions. The sleeve is mounted within a mold wall and contains an expansion agent such as silicon. An increase in mold temperature causes the expansion agent to expand and move the valve member from the closed position into the open position. An external annular groove is provided within the sleeve to receive displaced mold wall material as the sleeve is press inserted into the mold wall. A tight fit of the sleeve within the mold wall results. The sleeve and valve are configured to allow air to escape in the open position. The valve member is moved to the closed position by material within the mold cavity pressing against the valve member.
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Cuny André
Gieres Georges Hubert Henri
Nowak Eric
Schmit Gérard
Mackey James P.
O'Planick Richard B.
The Goodyear Tire & Rubber Company
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