FR2156580A1 - - Google Patents
Info
- Publication number
- FR2156580A1 FR2156580A1 FR7231481A FR7231481A FR2156580A1 FR 2156580 A1 FR2156580 A1 FR 2156580A1 FR 7231481 A FR7231481 A FR 7231481A FR 7231481 A FR7231481 A FR 7231481A FR 2156580 A1 FR2156580 A1 FR 2156580A1
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
- Laminated Bodies (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18704171A | 1971-10-06 | 1971-10-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2156580A1 true FR2156580A1 (OSRAM) | 1973-06-01 |
| FR2156580B1 FR2156580B1 (OSRAM) | 1976-05-21 |
Family
ID=22687375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7231481A Expired FR2156580B1 (OSRAM) | 1971-10-06 | 1972-08-25 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3749517A (OSRAM) |
| JP (1) | JPS4844998A (OSRAM) |
| CA (1) | CA954110A (OSRAM) |
| DE (1) | DE2240247A1 (OSRAM) |
| FR (1) | FR2156580B1 (OSRAM) |
| GB (1) | GB1367722A (OSRAM) |
| IT (1) | IT968645B (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316701A (en) * | 1976-08-30 | 1982-02-23 | The Boeing Company | Composite aerodynamic rotor blade assembly |
| GB8703323D0 (en) * | 1987-02-13 | 1987-03-18 | British Petroleum Co Plc | Separation process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR920962A (fr) * | 1946-01-31 | 1947-04-23 | United Aircraft Corp | Perfectionnements aux pales et notamment aux pales d'hélicoptères |
| US2620884A (en) * | 1950-02-08 | 1952-12-09 | United Aircraft Corp | Metal rotor blade having flexible trailing edge |
| US2754915A (en) * | 1950-04-07 | 1956-07-17 | United Aircraft Corp | Blade having symmetrical extruded spar |
| GB1067771A (en) * | 1964-04-14 | 1967-05-03 | Mikhail Leontjevich Milj | Main rotor blade for a helicopter |
| US3323597A (en) * | 1965-02-01 | 1967-06-06 | United Aircraft Corp | Bonded counterweight for blade of rotary wing aircraft |
-
1971
- 1971-10-06 US US00187041A patent/US3749517A/en not_active Expired - Lifetime
-
1972
- 1972-05-30 CA CA143,501A patent/CA954110A/en not_active Expired
- 1972-08-14 GB GB3775872A patent/GB1367722A/en not_active Expired
- 1972-08-16 DE DE2240247A patent/DE2240247A1/de active Pending
- 1972-08-25 FR FR7231481A patent/FR2156580B1/fr not_active Expired
- 1972-10-02 JP JP47098895A patent/JPS4844998A/ja active Pending
- 1972-10-05 IT IT30113/72A patent/IT968645B/it active
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1367722A (en) | 1974-09-25 |
| FR2156580B1 (OSRAM) | 1976-05-21 |
| IT968645B (it) | 1974-03-20 |
| JPS4844998A (OSRAM) | 1973-06-27 |
| CA954110A (en) | 1974-09-03 |
| DE2240247A1 (de) | 1973-04-12 |
| US3749517A (en) | 1973-07-31 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |