Plastic article or earthenware shaping or treating: apparatus – Stock pressurizing means operably associated with downstream... – Plural orifices
Patent
1977-06-20
1978-09-05
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Stock pressurizing means operably associated with downstream...
Plural orifices
425463, 425DIG230, B29F 304
Patent
active
041116321
ABSTRACT:
The present invention is an improved pellet mill die having tapered grooves along each side of the compression surface of the die. The tapered grooves reduce the stresses at the maximum stress areas and thus control the breakage of metal between the first rows of holes and the inner edges of the grooves.
REFERENCES:
patent: 3129458 (1964-04-01), Mitchell
patent: 3469280 (1969-09-01), Mott
Brumback Oscar B.
Husar Francis S.
Koppers Company Inc.
Rosenbaum Mark
Zeh, Jr. Herbert J.
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