FR2220771A2 - - Google Patents
Info
- Publication number
- FR2220771A2 FR2220771A2 FR7406519A FR7406519A FR2220771A2 FR 2220771 A2 FR2220771 A2 FR 2220771A2 FR 7406519 A FR7406519 A FR 7406519A FR 7406519 A FR7406519 A FR 7406519A FR 2220771 A2 FR2220771 A2 FR 2220771A2
- 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
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/34—Control, warning or like safety means along the route or between vehicles or trains for indicating the distance between vehicles or trains by the transmission of signals therebetween
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/16—Continuous control along the route
- B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
- B61L3/225—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using separate conductors along the route
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732311150 DE2311150A1 (de) | 1973-03-07 | 1973-03-07 | Anordnung zur messung des abstandes zwischen zwei aufeinanderfolgenden objekten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2220771A2 true FR2220771A2 (enExample) | 1974-10-04 |
| FR2220771B2 FR2220771B2 (enExample) | 1978-04-14 |
Family
ID=5873964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7406519A Expired FR2220771B2 (enExample) | 1973-03-07 | 1974-02-26 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3904157A (enExample) |
| JP (1) | JPS49122364A (enExample) |
| CA (1) | CA1028022A (enExample) |
| DE (1) | DE2311150A1 (enExample) |
| FR (1) | FR2220771B2 (enExample) |
| GB (1) | GB1461612A (enExample) |
| NL (1) | NL7401439A (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4166259A (en) * | 1975-08-08 | 1979-08-28 | Messerschmitt-Bolkow-Blohm Gmbh | Flat high frequency cable |
| DE2901994C2 (de) * | 1979-01-19 | 1981-01-29 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Einrichtung zur linienförmigen Beeinflussung von spurgebundenen Fahrzeugen |
| US4947759A (en) * | 1988-12-02 | 1990-08-14 | Tele Engineering, Inc. | Proximity control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2139617C3 (de) * | 1971-08-07 | 1974-09-05 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Anordnung zur kontinuierlichen Messung des Abstandes zwischen zwei aufeinanderfolgenden spurgebundenen Objekten |
-
1973
- 1973-03-07 DE DE19732311150 patent/DE2311150A1/de active Pending
-
1974
- 1974-02-01 NL NL7401439A patent/NL7401439A/xx unknown
- 1974-02-22 GB GB824574A patent/GB1461612A/en not_active Expired
- 1974-02-26 FR FR7406519A patent/FR2220771B2/fr not_active Expired
- 1974-02-27 US US446269A patent/US3904157A/en not_active Expired - Lifetime
- 1974-03-05 JP JP49024869A patent/JPS49122364A/ja active Pending
- 1974-03-06 CA CA194,230A patent/CA1028022A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3904157A (en) | 1975-09-09 |
| NL7401439A (enExample) | 1974-09-10 |
| JPS49122364A (enExample) | 1974-11-22 |
| CA1028022A (en) | 1978-03-14 |
| GB1461612A (en) | 1977-01-13 |
| FR2220771B2 (enExample) | 1978-04-14 |
| DE2311150A1 (de) | 1974-09-12 |