MANDRELESS MOLDING SYSTEM
Assignee
McDonnell Douglas
Filed as: MCDONNELL DOUGLAS CORPORATION
Filed
Dec 26, 1989
Granted
Jan 16, 1996
Location
MESA AZ US
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.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 13, 1990
Rescinded
Jul 13, 1993
Duration
2 years, 10 months
Inventor
- 1WILLIAM E. LINDSAY
Record Details
- Patent number
- US 5484277
- Application
- 07456888
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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