FR2172249A1 - - Google Patents
Info
- Publication number
- FR2172249A1 FR2172249A1 FR7305240A FR7305240A FR2172249A1 FR 2172249 A1 FR2172249 A1 FR 2172249A1 FR 7305240 A FR7305240 A FR 7305240A FR 7305240 A FR7305240 A FR 7305240A FR 2172249 A1 FR2172249 A1 FR 2172249A1
- 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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Laminated Bodies (AREA)
- Wind Motors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22577872A | 1972-02-14 | 1972-02-14 | |
US27323072A | 1972-07-19 | 1972-07-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2172249A1 true FR2172249A1 (en) | 1973-09-28 |
FR2172249B1 FR2172249B1 (en) | 1976-06-11 |
Family
ID=26919899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7305240A Expired FR2172249B1 (en) | 1972-02-14 | 1973-02-07 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2304213C2 (en) |
FR (1) | FR2172249B1 (en) |
GB (1) | GB1361174A (en) |
IT (1) | IT979058B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117799110A (en) * | 2022-02-21 | 2024-04-02 | 荆州市三农农业航空科技有限公司 | Processing technology of gyroplane rotor blade |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2754918A (en) * | 1950-09-21 | 1956-07-17 | United Aircraft Corp | Weighted blade for rotary wing aircraft |
US2981337A (en) * | 1959-09-08 | 1961-04-25 | Hiller Aircraft Corp | Propeller blade |
US3547555A (en) * | 1969-03-05 | 1970-12-15 | United Aircraft Corp | Rotor blade pressure sensing system |
-
1973
- 1973-01-29 DE DE19732304213 patent/DE2304213C2/en not_active Expired
- 1973-02-01 GB GB508173A patent/GB1361174A/en not_active Expired
- 1973-02-07 FR FR7305240A patent/FR2172249B1/fr not_active Expired
- 1973-02-13 IT IT2032773A patent/IT979058B/en active
Non-Patent Citations (1)
Title |
---|
NEANT * |
Also Published As
Publication number | Publication date |
---|---|
GB1361174A (en) | 1974-07-24 |
DE2304213A1 (en) | 1973-08-23 |
DE2304213C2 (en) | 1983-01-13 |
FR2172249B1 (en) | 1976-06-11 |
IT979058B (en) | 1974-09-30 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |