Apparatus for making a pulse dampener

Details Apparatus for making a pulse dampener Apparatus for making a pulse dampener

1991-11-25

1993-10-19

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

264524, 264534, 425395, 425527, B29C 4930, B29D 2200

Patent

active

052539954

ABSTRACT:
A molding apparatus for making a hollow pressurized pulse dampener including a fixed platen having a primary member extending from the fixed platen and a secondary member including a centrally disposed aperture and a second mold surface to define a mold cavity for molding an intermediate member. The primary member extends through the centrally disposed aperture of the secondary member and includes a distal terminal end which includes a first mold surface for molding a pulse dampener. The first mold surface is disposed recessed within the secondary member such that the secondary member is moveable with respect to the primary member to present the first mold surface in the mold cavity to define the pulse dampener from the intermediate member. The secondary member includes means for continuously, positively and precisely pressurizing the mold cavity and the intermediate member until the first mold surface is presented within the cavity to mold the pulse dampener.

REFERENCES:
patent: 1654647 (1928-01-01), Heist
patent: 2371061 (1945-03-01), Milano
patent: 2541249 (1951-02-01), Hobson
patent: 4645447 (1987-02-01), Sumitomo

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