US 5152059
MANUFACTURE OF COOLED AEROFOIL BLADES
Assignee
ROLLS-ROYCE LIMITED, 65 BUCKINGHAM GATE, LONDON, SW1E 6AT, ENGLAND, A BRITISH COMPANY
Filed
Jul 16, 1981
Granted
Oct 6, 1992
Location
ST. ALBANS GB
Abstract
A method of manufacturing cooled aerofoil blades in which blade parts are bonded together to provide complete blades. The blade parts are provided with mating surfaces which are simultaneously spark erosion machined to match the same prior to the blade parts being brazed together. Spark erosion machining is performed by maintaining the mating surfaces to be matched at a constant distance apart from each other and translating a tensioned wire electrode along a path passing mid-way between the mating surfaces.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jun 19, 1984
Rescinded
Aug 2, 1991
Duration
7 years, 1 month
Inventor
- 1RONALD A. MIDGLEY
Record Details
- Patent number
- US 5152059
- Application
- 06291829
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
Back to patent indexSource: USPTO 35 USC §181 secrecy order records