Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to evacuate mold or provide controlled environment
Reexamination Certificate
2007-02-02
2009-02-03
Heitbrink, Tim (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to evacuate mold or provide controlled environment
C425S405100
Reexamination Certificate
active
07484952
ABSTRACT:
An airtight mechanism of a mold-holding unit for forming a vacuum environment around a held mold, including: a base section; an elongated support section, one end of the support section being vertically fixedly connected with the base section; a top section bridged between the other end of the support section above the base section and in alignment therewith, a mold-holding space being defined between the top section and the base section, in which the mold is held; an airtight tubular chamber reciprocally linearly movable along an axes of the support section between an airtight position and an open position, whereby when positioned in the airtight position, the airtight tubular chamber is positioned in the mold-holding space around the held mold; a first closed end piece disposed on the base section and having a first closed connecting loop, whereby one end of the airtight tubular chamber in the airtight position coaxially airtight abuts against the first closed connecting loop; and a second closed end piece disposed on the top section and having a second closed connecting loop, whereby the other end of the airtight tubular chamber in the airtight position coaxially airtight abuts against the second closed connecting loop.
REFERENCES:
patent: 3153833 (1964-10-01), Jackson, Sr.
patent: 3261055 (1966-07-01), Dart
patent: 3704974 (1972-12-01), Kotsur
patent: 3712785 (1973-01-01), Hirt et al.
patent: 3773454 (1973-11-01), Horve et al.
patent: 4009981 (1977-03-01), Rosen
patent: 4165062 (1979-08-01), Mitchell
patent: 4208177 (1980-06-01), Allen
patent: 4564352 (1986-01-01), Pettersson
patent: 5882693 (1999-03-01), Silkowski et al.
Heitbrink Tim
King Steel Machinery Co., Ltd.
Troxell Law Office PLLC
LandOfFree
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