Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including shaping means comprising fluid pressure contacting...
Patent
1989-12-26
1996-01-16
Mai, Ngoclan T.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Including shaping means comprising fluid pressure contacting...
425DIG60, 249134, 264316, B29C 6200
Patent
active
054842778
ABSTRACT:
A tool for fabricating fiber reinforced resin matrix composite structures having molded outside surfaces with intermittent molded inside surfaces e.g. aircraft skin with internal stiffeners. The tool employs a hybrid vacuum bag with soft portions in combination with rigid portions to produce the internal stiffeners. The stiffeners are supported and shaped during curing by pressurized elastomeric tubes, in lieu of mandrels, which can be easily removed when collapsed. The stiffeners and skin can be made from wet lay-ups or prepregs, formed in place or preformed, and in combinations where one part is precured or both parts are co-cured.
REFERENCES:
patent: 2593714 (1952-04-01), Robinson
patent: 2781554 (1957-02-01), Robinson
patent: 3330550 (1967-07-01), Brownlee
patent: 3610563 (1971-10-01), Allen et al.
patent: 3641230 (1972-02-01), Jenks
patent: 3642975 (1972-02-01), Duggins et al.
patent: 3728777 (1973-04-01), Crowe
patent: 3871941 (1975-03-01), Wasko
patent: 3937781 (1976-02-01), Allen
patent: 3962393 (1976-06-01), Blad
patent: 3964958 (1976-06-01), Johnston
patent: 4132755 (1979-01-01), Johnson
patent: 4202856 (1980-05-01), Frikken
patent: 4267142 (1981-05-01), Lankheet
patent: 4270964 (1981-06-01), Flaskett
patent: 4512835 (1985-04-01), Gardiner
patent: 4562033 (1985-12-01), Johnson
patent: 4780262 (1988-10-01), VonVolkli
patent: 4816106 (1989-03-01), Turris
patent: 4853172 (1989-08-01), Jacaruso
patent: 4915896 (1990-04-01), Rachal
Mai Ngoclan T.
McDonnell Douglas Corporation
Scholl John P.
Stout Donald E.
Turner Roger C.
LandOfFree
Mandreless molding system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mandreless molding system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mandreless molding system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-305390