Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2006-09-19
2006-09-19
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S270000, C264S310000, C264S279000, C425S517000, C425S112000, C425S126100, C138S172000, C138S174000
Reexamination Certificate
active
07108821
ABSTRACT:
A method of fabricating a double-walled shell of fiber reinforced plastic material is by centrifuging. The outer wall of the shell is made by projecting glass fibers and resin in a liquid phase against an inside face of a cylindrical mold rotating about its horizontal axis. A section member is then applied against the inside face of the outer wall by a plurality of turns having a diameter substantially equal to the inside diameter of the outer wall and separated from one another by a distance substantially equal to the thickness of the outer wall. The section member has a channel section with a web and two flanges extending radially outward, defining a sealed helical duct. The space between the turns is filled with resin by centrifuging, forming a helical spacer, and the inner wall is formed by centrifuging.
REFERENCES:
patent: 3783060 (1974-01-01), Goldsworthy et al.
patent: 3788916 (1974-01-01), Gadelius
patent: 3816582 (1974-06-01), Tennyson
patent: 4004706 (1977-01-01), Guldenfels et al.
patent: 4038001 (1977-07-01), Stinnes
patent: 4071599 (1978-01-01), Walker
patent: 4611980 (1986-09-01), Tsuji et al.
patent: 4783232 (1988-11-01), Carbone et al.
patent: 4821915 (1989-04-01), Mayer
patent: 4994132 (1991-02-01), Liekens et al.
patent: 5224621 (1993-07-01), Cannan et al.
patent: 5829625 (1998-11-01), Imagawa
patent: 12 09 728 (1966-01-01), None
patent: 26 37 683 (1978-02-01), None
patent: 0 760 346 (1997-03-01), None
patent: 1065384 (1967-04-01), None
patent: WO 93/07073 (1993-04-01), None
Colaianni Michael P.
Daniels Matthew J.
Merchant & Gould P.C.
LandOfFree
Method for making double-wall shells by centrifuging does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making double-wall shells by centrifuging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making double-wall shells by centrifuging will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3607278