JPS306004B1 - - Google Patents
Info
- Publication number
- JPS306004B1 JPS306004B1 JP54351A JP54351A JPS306004B1 JP S306004 B1 JPS306004 B1 JP S306004B1 JP 54351 A JP54351 A JP 54351A JP 54351 A JP54351 A JP 54351A JP S306004 B1 JPS306004 B1 JP S306004B1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
- B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
- B61L7/068—Protection against eddy-currents, short-circuits, or the like, for electric safety arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Locating Faults (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US119399A US2623107A (en) | 1949-10-04 | 1949-10-04 | Ground detecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS306004B1 true JPS306004B1 (US06291589-20010918-C00001.png) | 1955-08-27 |
Family
ID=22384215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54351A Pending JPS306004B1 (US06291589-20010918-C00001.png) | 1949-10-04 | 1951-01-17 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2623107A (US06291589-20010918-C00001.png) |
| JP (1) | JPS306004B1 (US06291589-20010918-C00001.png) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2758442A (en) * | 1954-02-18 | 1956-08-14 | Fred L Fast | Hydraulic transmission |
| US3898557A (en) * | 1973-11-12 | 1975-08-05 | Daltec Systems Inc | Electrical device for testing a ground fault circuit interrupter |
| US3947759A (en) * | 1974-09-16 | 1976-03-30 | Continental Engineering, Inc. | Leakage current monitoring system and method |
| US4002968A (en) * | 1975-06-10 | 1977-01-11 | General Signal Corporation | Ground fault detector for a two-wire power supply |
| US4417202A (en) * | 1981-01-30 | 1983-11-22 | American Standard Inc. | Vital DC source ground fault detector apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB289538A (en) * | 1927-01-28 | 1928-04-30 | Leslie Hurst Peter | Improvements relating to leakage indicators for alternating current circuits |
| US2010840A (en) * | 1931-10-15 | 1935-08-13 | Union Switch & Signal Co | Ground detecting apparatus |
-
1949
- 1949-10-04 US US119399A patent/US2623107A/en not_active Expired - Lifetime
-
1951
- 1951-01-17 JP JP54351A patent/JPS306004B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2623107A (en) | 1952-12-23 |
