NL7806688A - Overwegbeveiligingsstelsel met verbeterde alarm-aan- houding. - Google Patents
Overwegbeveiligingsstelsel met verbeterde alarm-aan- houding.Info
- Publication number
- NL7806688A NL7806688A NL7806688A NL7806688A NL7806688A NL 7806688 A NL7806688 A NL 7806688A NL 7806688 A NL7806688 A NL 7806688A NL 7806688 A NL7806688 A NL 7806688A NL 7806688 A NL7806688 A NL 7806688A
- Authority
- NL
- Netherlands
- Prior art keywords
- protection system
- road protection
- alarm silence
- improved alarm
- silence
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
- B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
- B61L29/286—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated using conductor circuits controlled by the vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/808,592 US4120471A (en) | 1977-06-21 | 1977-06-21 | Highway crossing system with improved ring sustain feature |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7806688A true NL7806688A (nl) | 1978-12-27 |
Family
ID=25199205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7806688A NL7806688A (nl) | 1977-06-21 | 1978-06-21 | Overwegbeveiligingsstelsel met verbeterde alarm-aan- houding. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4120471A (nl) |
AR (1) | AR216519A1 (nl) |
CA (1) | CA1102904A (nl) |
ES (1) | ES470943A1 (nl) |
NL (1) | NL7806688A (nl) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4251041A (en) * | 1978-07-12 | 1981-02-17 | General Signal Corporation | Multiplexing means for motion detectors at grade crossings |
US5098044A (en) * | 1989-12-22 | 1992-03-24 | General Railway Signal Corporation | Highway crossing control system for railroads utilizing a communications link between the train locomotive and the crossing protection equipment |
US5092544A (en) * | 1989-12-22 | 1992-03-03 | General Railway Signal Corp. | Highway crossing control system for railroads utilizing a communications link between the train locomotive and the crossing protection equipment |
US7075427B1 (en) | 1996-01-12 | 2006-07-11 | Eva Signal Corporation | Traffic warning system |
US5699986A (en) * | 1996-07-15 | 1997-12-23 | Alternative Safety Technologies | Railway crossing collision avoidance system |
US6572056B2 (en) | 2001-01-23 | 2003-06-03 | Alstom Signaling, Inc. | Method and apparatus for uniform time warning of railroad trains |
US8857769B1 (en) * | 2013-04-30 | 2014-10-14 | Siemens Industry, Inc. | Variable frequency train detection |
DE102016107211A1 (de) * | 2016-04-19 | 2017-10-19 | Voith Patent Gmbh | Vorrichtung zur daten- und/oder signalübertragung |
CN113517898B (zh) * | 2021-04-27 | 2022-08-26 | 河南城建学院 | 一种桥梁施工信号处理装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734130A (en) * | 1956-02-07 | Graduated time control system for | ||
US2719218A (en) * | 1949-12-17 | 1955-09-27 | Westinghouse Air Brake Co | Apparatus for the control of highway crossing signals |
US2863993A (en) * | 1954-01-28 | 1958-12-09 | Westinghouse Air Brake Co | Electronic railway track circuit |
US2881309A (en) * | 1954-04-02 | 1959-04-07 | Gen Railway Signal Co | Highway crossing with insulated track section at crossing |
US3781542A (en) * | 1972-10-16 | 1973-12-25 | Gen Signal Corp | Highway crossing signal control system for railroads |
US3987989A (en) * | 1974-04-05 | 1976-10-26 | Erico Rail Products Company | Railway signal system |
US3944173A (en) * | 1975-04-17 | 1976-03-16 | Saftran System Corporation | Railroad crossing motion sensing system |
-
1977
- 1977-06-21 US US05/808,592 patent/US4120471A/en not_active Expired - Lifetime
-
1978
- 1978-03-17 CA CA299,159A patent/CA1102904A/en not_active Expired
- 1978-06-20 ES ES470943A patent/ES470943A1/es not_active Expired
- 1978-06-21 AR AR272666A patent/AR216519A1/es active
- 1978-06-21 NL NL7806688A patent/NL7806688A/nl not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA1102904A (en) | 1981-06-09 |
ES470943A1 (es) | 1979-09-01 |
AR216519A1 (es) | 1979-12-28 |
US4120471A (en) | 1978-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |