Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Reexamination Certificate
2005-11-22
2005-11-22
Ortiz, Angela (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
C264S258000, C264S313000, C264S314000, C264S316000, C425S387100, C425S388000
Reexamination Certificate
active
06967000
ABSTRACT:
This invention refers to a method and a device for use in connection with the fabrication of multilayer products (8) such as composites and bonded multilayer sheet products, ect. by means of the so-called “bagging technique,” to increase the compressive pressure (P) on the product being created beyond normal atmospheric pressure. In the bagging technique, which is used to join a plurality of different material layers with one another to form a unit via polymeric binder layers, atmospheric pressure is normally used to press the various objects together in that they are enclosed in a depressurized gas-impervious bag (9, 21) while the various layers are joined to form a unified product. According to the invention, the atmospheric pressure acting upon the outside of the bag is adsorbed by a first material surface (3+4+5) that is larger than the surface of the multilayer product whose intermediate binder layers are to be caused to join together, while a second material surface (3) facing the opposite direction is used to transfer said composite pressure load (P) to the product to be fabricated. The invention also includes a method and a device for distributing the pressure load (17, 18, 10) laterally in connection with the fabrication of e.g. a U-channel-shapped object with the help of the wedge effect.
REFERENCES:
patent: 4132755 (1979-01-01), Johnson
patent: 4305340 (1981-12-01), Iwaki et al.
patent: 4755341 (1988-07-01), Reavely et al.
patent: 4915896 (1990-04-01), Rachal et al.
patent: 4942013 (1990-07-01), Palmer et al.
patent: 5015168 (1991-05-01), Boime et al.
patent: 5242523 (1993-09-01), Willden et al.
patent: 5242652 (1993-09-01), Savigny
patent: 5451377 (1995-09-01), Asher et al.
patent: 6406580 (2002-06-01), Campbell, Jr.
patent: 6666942 (2003-12-01), Campbell, Jr.
patent: 4234002 (1994-04-01), None
patent: 60-206619 (1985-10-01), None
patent: 99/15323 (1999-04-01), None
Ortiz Angela
SAAB AB
Swidler Berlin , LLP
LandOfFree
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