US3073568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite blades for turbines, compressors and the like
Assignee: Individual
•
Filing: 1958-06-27
•
Granted: 1963-01-15
•
Expires: 1978-06-27
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:53
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN COMBINATION IN A HOLLOW BLADE FOR TURBINES, COMPRESSORS, AND THE LIKE, WALLS DEFINING A HOLLOW SHELL HAVING INTEGRAL ROOT PORTIONS AT THE ROOT OF THE BLADE BROUGHT INTO BRAZING PROXIMITY WITH EACH OTHER OVER A SUBSTANTIAL SPANWISE EXTENT AND BONDED TOGETHER BY BRAZE, AND COMPLEMENTARY BASE PARTS FITTING AGAINST OPPOSITE SIDES OF SAID ROOT PORTIONS AND BONDED THERETO BY HIGH TEMPERATURE BRAZE DEFINING A BLADE BASE WITH SAID PORTIONS EXTENDING INTO SAID BASE, AT LEAST ONE OF SAID ROOT PORTIONS EXTENDING IN THE GENERAL CHORDWISE AND SPANWISE DIRECTIONS TO THE EDGES OF SAID BASE PARTS PRESENTING THE BRAZE AT THE EDGES OF SAID ONE PORTION TO VIEW ALONG THE ENDS AND BOTTOM OF SAID BASE, SAID BASE PARTS HAVING SECURING MEANS FOR SECURING SAID BLADE IN A ROTOR.
Claim 2
Dependent Claim
129 words
IN COMBINATION IN A HOLLOW BLADE FOR TURBINES, COMPRESSORS, AND THE LIKE, WALLS DEFINING A HOLLOW SHELL HAVING INTEGRAL ROOT PORTIONS AT THE ROOT OF THE BLADE BROUGHT INTO BRAZING PROXIMITY WITH EACH OTHER OVER A SUBSTANTIAL SPANWISE EXTENT AND BONDED TOGETHER BY BRAZE, AND COMPLEMENTARY BASE PARTS FITTING AGAINST OPPOSITE SIDES OF SAID ROOT PORTIONS AND BONDED THERETO BY HIGH TEMPERATURE BRAZE DEFINING A BLADE BASE WITH SAID PORTIONS EXTENDING INTO SAID BASE, AT LEAST ONE OF SAID ROOT PORTIONS EXTENDING IN THE GENERAL CHORDWISE AND SPANWISE DIRECTIONS TO THE EDGES OF SAID BASE PARTS PRESENTING THE BRAZE AT THE EDGES OF SAID ONE PORTION TO VIEW ALONG THE ENDS AND BOTTOM OF SAID BASE, SAID BASE PARTS HAVING SECURING MEANS FOR SECURING SAID BLADE IN A ROTOR.
References Cited (Backward Citations)
GB574440A
Cited
US2656146A
Cited
GB716612A
Cited
US2817490A
Cited
CH298592A
Cited
US2873944A
Cited
GB729665A
Cited
US2963269A
Cited
US2848193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |