Apparatus for molding dynamically balanced fans

Details Apparatus for molding dynamically balanced fans Apparatus for molding dynamically balanced fans

1975-09-24

1977-09-13

Husar, Francis S.

Static molds

Container-type molding device

And an inner removable core to form recess or opening

249155, B28B 702, B28B 716

Patent

active

040476928

ABSTRACT:
A method of and apparatus for the manufacture of dynamically balanced molded plastic air movement devices wherein material may be readily added or deleted from inactive surface portions of the air movement devices during manufacture by adjustable pins accessable from the front or face of a mold half.

REFERENCES:
patent: 881912 (1908-03-01), Emrick
patent: 1533830 (1925-04-01), Cochran
patent: 1586352 (1926-05-01), Cochran
patent: 2442022 (1948-05-01), Schulz
patent: 3136001 (1964-06-01), Gelbard
patent: 3596869 (1971-08-01), Humphrey
patent: 3756553 (1973-09-01), Ranz

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