US4864306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway anticollision apparatus and method
Assignee: Individual
•
Filing: 1986-06-23
•
Granted: 1989-09-05
•
Expires: 2006-06-23
Abstract
Abstract A railway anticollision apparatus and method is disclosed in which machine readable trackside markers such as bar code markers are utilized along the track and are read by apparatus on board the train to provide track number identification, milepost identification and train direction. On board the train is equipment to provide train identification and train speed. This information is transmitted through transponders between trains and to a central station and is processed by apparatus on board the respective trains and the central location to provide visual and audible signals indicative of a potential train collision.
Inventors
- 👤 Floyd L. Wiita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:31
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/021; B61L23/00; B61L23/34; B61L25/023; B61L25/025; B61L25/026; B61L27/00; B61L27/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
Railway anticollision apparatus comprising: a plurality of optically machine readable trackside markers positioned at preselected trackside positions and providing as trackside marker information a track location position; optical means positioned within a given train for reading a given trackside marker; and communication means carried by each train for transmitting and receiving between trains the respective trackside marker information and processing the same to provide an indication of a potential collision.
Claim 2
Dependent Claim
70 words
Railway anticollision apparatus comprising: a plurality of optically machine readable trackside markers positioned at preselected trackside positions and providing as trackside marker information a track location position; optical means positioned within a given train for reading a given trackside marker; and communication means carried by each train for transmitting and receiving between trains the respective trackside marker information and processing the same to provide an indication of a potential collision.
Claim 3
Dependent Claim
18 words
The railway anticollision apparatus of claim 1 wherein the trackside marker provides trackside marker information of track direction.
Claim 4
Dependent Claim
21 words
The railway anticollision apparatus of either claims 1 or 2 wherein the trackside marker provides trackside marker information of track number.
Claim 5
Dependent Claim
32 words
The railway anticollision apparatus of claim 3 wherein each train includes train identification means providing a train identification signal which is communicated to the respective trains by means of the communication means.
Claim 6
Dependent Claim
31 words
The railway anticollision apparatus of claim 4 wherein each train includes speed indicating means providing a speed indication signal which is communicated between respective trains by means of the communication means.
Claim 7
Independent Claim
97 words
The method of preventing railway collisions comprising: placing at preselected positions along the track side, optical machine reading trackside markers providing the information of track direction, track position and track identification; reading the machine readable trackside markers by optical machine readable devices positioned upon a given train; generating a train speed indication signal; generating a train identification signal; communicating between respective trains within a prescribed proximity the information of track identification, track position, track direction, train speed and train identification; and processing the communicated information upon each respective train to provide indications of a potential collision situation.
Claim 8
Independent Claim
97 words
The method of preventing railway collisions comprising: placing at preselected positions along the track side, optical machine reading trackside markers providing the information of track direction, track position and track identification; reading the machine readable trackside markers by optical machine readable devices positioned upon a given train; generating a train speed indication signal; generating a train identification signal; communicating between respective trains within a prescribed proximity the information of track identification, track position, track direction, train speed and train identification; and processing the communicated information upon each respective train to provide indications of a potential collision situation.
References Cited (Backward Citations)
US1747041A
Cited
US2762913A
Cited
US3264614A
Cited
US3305682A
Cited
US3209350A
Cited
US3235025A
Cited
US3544788A
Cited
US3636508A
Cited
US3639731A
Cited
US3644883A
Cited
US3714650A
Cited
US3790780A
Cited
US3787679A
Cited
US3824469A
Cited
US3964702A
Cited
US3940765A
Cited
US4040053A
Cited
US4027840A
Cited
US3940630A
Cited
US4015807A
Cited
US4038653A
Cited
US4133505A
Cited
US4041448A
Cited
US4107675A
Cited
US4210084A
Cited
US4296901A
Cited
US4524931A
Cited
US4508298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |