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United States Patent | 5,547,737 |
Evans , et al. | August 20, 1996 |
A method for the manufacture of a light-weight panel, e.g. for aircraft, comprising preparing a panel preform having a pair of surface members or skins (29, 30) separated and supported by an internal core (26-28) in which spaces or interconnected pores provide vents to an edge of the panel, the wall surface members and the core comprising fibrous material, which may be carbon fibre, and using a pyrolysis process such as CVD to form a pyrolyric matrix around the fibres within the fibrous material, there being a flow of gas through the vents during the pyrolysis process.
Inventors: | Evans; Maurice J. (Sutton Coldfield, GB2), Faulkner; Sharon L. (Coventry, GB2), Fisher; Ronald (Rugby, GB2), Wells; Trevor C. (Leamington Spa, GB2), Hadlum; Paul (Coventry, GB2) |
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Assignee: |
Dunlop Limited
(London,
GB2)
|
Family ID: | 27546948 |
Appl. No.: | 08/303,671 |
Filed: | September 9, 1994 |
Application Number | Filing Date | Patent Number | Issue Date | ||
---|---|---|---|---|---|
190615 | Feb 2, 1994 | 5360500 | |||
74985 | Jun 10, 1993 | ||||
888403 | May 21, 1992 | ||||
725225 | Jun 26, 1991 | ||||
390459 | Aug 4, 1989 | ||||
121009 | Nov 20, 1987 | ||||
Nov 20, 1986 [GB] | 8627819 | |||
Current U.S. Class: | 428/178; 428/188; 52/793.1 |
Current CPC Class: | B29D 24/008 (20130101); B32B 3/20 (20130101); B32B 5/28 (20130101); B64C 1/12 (20130101); E04C 2/3405 (20130101); C04B 35/83 (20130101); B64C 2001/0072 (20130101); Y10T 428/24661 (20150115); E04C 2002/345 (20130101); E04C 2002/3477 (20130101); Y02T 50/433 (20130101); Y10T 428/24744 (20150115) |
Current International Class: | B32B 3/18 (20060101); B32B 3/20 (20060101); B32B 5/22 (20060101); B32B 5/28 (20060101); B29D 24/00 (20060101); B64C 1/00 (20060101); C04B 35/83 (20060101); E04C 2/34 (20060101); B32B 003/12 () |
Field of Search: | ;428/178,188,72,120,175,192,280,287 ;52/793.1 |
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Publication entitled "Carbon fibers" authored by W. T. Gunston dated Feb. 1969 from Science Journal.. |