Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work – To degas or prevent gas entrapment
Patent
1996-09-11
1998-03-10
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
To degas or prevent gas entrapment
264120, 419 66, B29C 4314
Patent
active
057258163
ABSTRACT:
The present invention relates to a packing method in which a material (p) is fed into a space comprising an opening (4c) for feeding the material and a space (4d) to be packed with said material, and said space is subjected to air tapping, that is, switching of air-pressure from a low air-pressure state to a high air-pressure state alternately, thereby packing the material into the space (4d) at a high packing-density. The use of air tapping for packing a material into a space makes the packing-density of the material uniform.
REFERENCES:
patent: 4788023 (1988-11-01), Buhler et al.
patent: 4937025 (1990-06-01), Foster et al.
patent: 5122319 (1992-06-01), Watanabe et al.
patent: 5215697 (1993-06-01), Toki et al.
patent: 5455002 (1995-10-01), Kobayashi et al.
Kasahara Mizuho
Miyoshi Terumasa
Nagata Hiroshi
Sagawa Masato
Watanabe Toshihiro
Intermetallics Co., Ltd.
Theisen Mary Lynn
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