Plastic article or earthenware shaping or treating: apparatus – Preform severing means – Cutter guided by or cooperating with peripheral edge of...
Reexamination Certificate
2011-03-08
2011-03-08
Del Sole, Joseph S (Department: 1743)
Plastic article or earthenware shaping or treating: apparatus
Preform severing means
Cutter guided by or cooperating with peripheral edge of...
C425S388000, C425S398000, C425S407000, C425S412000, C264S101000, C264S553000
Reexamination Certificate
active
07901199
ABSTRACT:
An upper press platen supports an upper mold member slidable vertically within a surrounding upper trim frame. A lower press platen supports a lower trim frame surrounding a lower mold member slidable vertically within the lower trim frame. The lower mold member defines a cavity connected to a vacuum source, and one or two heated sheets of material are positioned between the trim frames and mold members which are then closed to clamp peripheral portions of the sheets between the trim frames. The lower heated sheet is vacuum formed into the cavity and the sheets are fused together with heat and pressure to form a part which is then cooled. The mold members shift downwardly as a unit within the trim frames to shear the peripheral portions of the sheets from the part. The trimmed part and peripheral portions are removed after the trim frames and mold members open.
REFERENCES:
patent: 3342915 (1967-09-01), Wanderer
patent: 3561057 (1971-02-01), Butzko
patent: 3832102 (1974-08-01), Alroy
patent: 4328067 (1982-05-01), Cesano
patent: 4755129 (1988-07-01), Baker et al.
patent: 5076880 (1991-12-01), Spengler et al.
patent: 5813355 (1998-09-01), Brown et al.
patent: 5843366 (1998-12-01), Shuert
patent: 5980231 (1999-11-01), Arends et al.
patent: 6379606 (2002-04-01), Chun et al.
patent: 7045086 (2006-05-01), Fitzell, Jr.
patent: 7101503 (2006-09-01), Spengler et al.
patent: 7140863 (2006-11-01), Koppenhofer
patent: 2005/0220925 (2005-10-01), Inada et al.
patent: 2009/0232930 (2009-09-01), Suzuki et al.
Del Sole Joseph S
Jacox Meckstroth & Jenkins
Sultana Nahida
Tooling Technology LLC
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