US3291382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bladed structure, for example, for a gas turbine engine compressor
Assignee: Rolls Royce PLC
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Filing: 1965-03-26
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Granted: 1966-12-13
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Expires: 1985-03-26
Abstract
No abstract record available.
Inventors
- 👤 Blackhurst Robert Vaughau
- 👤 May Gordon Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:58
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/54; F04D29/541; F04D29/542; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042; F01D9/044; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A BLADED STRUCTURE COMPRISING CONCENTRIC INNER AND OUTER CYLINDRICAL CASINGS, THE INNER CASING COMPRISING INNER AND OUTER LAYERS OF SYNTHETIC RESIN MATERIAL WITH WIRE MESH INTERPOSED THEREBETWEEN, AND THE INNER CASING HAVING A PLURALITY OF ANGULARLY SPACED APART HOLES THEREIN, A HONEYCOMB STRUCTURE INTERPOSED BETWEEN SAID CASINGS AND SECURED THERETO, AND A PLURALITY OF ANGULARLY SPACED APART AEROFOIL SHAPED BLADES WHICH ARE MOUNTED IN AND SECURED TO THE HONEYCOMB STRUCTURE AND WHICH EXTEND RADIALLY THROUGH THE HOLES IN THE INNER CASING.
Claim 2
Dependent Claim
81 words
A BLADED STRUCTURE COMPRISING CONCENTRIC INNER AND OUTER CYLINDRICAL CASINGS, THE INNER CASING COMPRISING INNER AND OUTER LAYERS OF SYNTHETIC RESIN MATERIAL WITH WIRE MESH INTERPOSED THEREBETWEEN, AND THE INNER CASING HAVING A PLURALITY OF ANGULARLY SPACED APART HOLES THEREIN, A HONEYCOMB STRUCTURE INTERPOSED BETWEEN SAID CASINGS AND SECURED THERETO, AND A PLURALITY OF ANGULARLY SPACED APART AEROFOIL SHAPED BLADES WHICH ARE MOUNTED IN AND SECURED TO THE HONEYCOMB STRUCTURE AND WHICH EXTEND RADIALLY THROUGH THE HOLES IN THE INNER CASING.
References Cited (Backward Citations)
FR1057993A
Cited
GB720956A
Cited
US2857093A
Cited
US3095138A
Cited
US3118593A
Cited
FR1290100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |