FR2034656A1 - - Google Patents
Info
- Publication number
- FR2034656A1 FR2034656A1 FR6938805A FR6938805A FR2034656A1 FR 2034656 A1 FR2034656 A1 FR 2034656A1 FR 6938805 A FR6938805 A FR 6938805A FR 6938805 A FR6938805 A FR 6938805A FR 2034656 A1 FR2034656 A1 FR 2034656A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/006—Safety devices
- B64C27/007—Safety devices adapted for detection of blade cracks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0033—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80444869A | 1969-03-05 | 1969-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2034656A1 true FR2034656A1 (fr) | 1970-12-11 |
Family
ID=25189012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6938805A Withdrawn FR2034656A1 (fr) | 1969-03-05 | 1969-11-12 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3547555A (fr) |
| DE (1) | DE1954857A1 (fr) |
| FR (1) | FR2034656A1 (fr) |
| GB (1) | GB1258608A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2342892A1 (fr) * | 1976-03-05 | 1977-09-30 | Westland Aircraft Ltd | Rotor d'helicoptere |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2304213C2 (de) * | 1972-02-14 | 1983-01-13 | United Technologies Corp., 06101 Hartford, Conn. | Rotorblatt und Verfahren zur Herstellung desselben |
| US3765124A (en) * | 1972-07-19 | 1973-10-16 | United Aircraft Corp | Helicopter rotor blade |
| US3981611A (en) * | 1975-02-12 | 1976-09-21 | United Technologies Corporation | Electrical interconnection circuitry from a rotating body to a relatively stationary body |
| JPS51137299A (en) * | 1975-04-15 | 1976-11-27 | Kawasaki Heavy Ind Ltd | Crack monitoring device of a rotor |
| US4082001A (en) * | 1977-04-19 | 1978-04-04 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Non-destructive method for applying and removing instrumentation on helicopter rotor blades |
| DE2936761C2 (de) * | 1979-09-12 | 1984-07-12 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Kontrollsystem zur Überwachung von unter Gasdruck stehenden Rotorblättern |
| US4439106A (en) * | 1982-06-14 | 1984-03-27 | United Technologies Corporation | Rotor blade shaft integrity monitoring system |
| US4717907A (en) * | 1986-03-10 | 1988-01-05 | Arinc Research Corporation | Remote parameter monitoring system with location-specific indicators |
| US5205710A (en) * | 1991-04-04 | 1993-04-27 | The United States Of America As Represented By The Secretary Of The Air Force | Helicopter blade crack detection system |
| CA2426711C (fr) * | 2002-05-02 | 2009-11-17 | General Electric Company | Centrale eolienne, mecanisme de commande de centrale eolienne et methode d'exploitation d'une centrale eolienne |
| DE10356230A1 (de) * | 2003-12-02 | 2005-07-07 | Zf Friedrichshafen Ag | Rotoreinheit an einem Drehflügler |
| EP2572982B1 (fr) * | 2011-09-20 | 2014-06-18 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Profil avec système de contrôle de circulation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2485245A (en) * | 1944-07-07 | 1949-10-18 | Curtiss Wright Corp | Control system |
| US3134445A (en) * | 1962-05-31 | 1964-05-26 | United Aircraft Corp | Blade inspection system |
| US3417727A (en) * | 1967-01-27 | 1968-12-24 | Nemes Laszlo | Pressure responsive signal and indicator |
-
1969
- 1969-03-05 US US804448A patent/US3547555A/en not_active Expired - Lifetime
- 1969-10-16 GB GB1258608D patent/GB1258608A/en not_active Expired
- 1969-10-31 DE DE19691954857 patent/DE1954857A1/de active Granted
- 1969-11-12 FR FR6938805A patent/FR2034656A1/fr not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2342892A1 (fr) * | 1976-03-05 | 1977-09-30 | Westland Aircraft Ltd | Rotor d'helicoptere |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1258608A (fr) | 1971-12-30 |
| US3547555A (en) | 1970-12-15 |
| DE1954857A1 (de) | 1970-12-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |