Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Laminated – embedded member or encased material
Reexamination Certificate
2007-05-14
2011-12-13
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Laminated, embedded member or encased material
C416S24100B
Reexamination Certificate
active
08075277
ABSTRACT:
There is described a method for casting a component comprising at least partly of fiber-reinforced plastic laminate by which the fiber-reinforcement is arranged in a casting mould, wherein at least one venting duct is placed, wherein said fiber-reinforcement and said venting duct are at least partly wetted by the plastic during the casting process in such a way that venting is achieved through said venting duct, and wherein the surface of the venting duct is at least partially made with a semi-permeable membrane that allows the passage of gases but does not allow or only slowly allows the passage of plastics. Furthermore there is described a component comprising at least partly of fiber-reinforced plastic laminate, wherein the plastic laminate inside comprises of one or more venting ducts, wherein the surface of a venting duct is at least partially made with a semi-permeable membrane that allows the passage of gases but does not allow or only slowly allows the passage of plastics.
REFERENCES:
patent: 5304339 (1994-04-01), Le Comte
patent: 5665301 (1997-09-01), Alanko
patent: 6818159 (2004-11-01), Hinz
patent: 6843953 (2005-01-01), Filsinger et al.
patent: 198 13 105 (1999-09-01), None
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patent: 1 310 351 (2003-05-01), None
Prager Jesse
Siemens Aktiengesellschaft
Verdier Christopher
LandOfFree
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