US6480766B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining train and track characteristics using navigational data
Assignee: New York Air Brake LLC
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Filing: 2001-05-03
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Granted: 2002-11-12
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Expires: 2021-05-03
Abstract
Abstract A method using the position data being determined on the train to determine characteristics of the train and/or the track. This is achieved by providing position determining devices at two or more spaced locations along the train. The position of the two locations are determined by the position determining devices. A processor determines the difference between the two locations from the positions determined by the position determining devices and determines the characteristics of the train from the determined difference between the two locations.
Inventors
- 👤 Michael J. Hawthorne
- 👤 Stephen K. Nickles
- 👤 John E. Haley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:03
CPC Classifications
B; B61; B61L; B61L15/00; B61L15/0094; B61L15/0072; B61L15/0081; B61L15/0092; B61L23/00; B61L23/04; B61L23/042; B61L23/047; B61L25/00; B61L25/02; B61L25/025; E; E01; E01B; E01B35/00; B61L2205/00; B61L2205/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
A method of determining location of a train having rail vehicles on a track, the method comprising: determining a first position of a portion of the train prior to or at a switch in the track; determining a second position of a portion of the train after the switch in the track; comparing the determined first and second positions to a data base on the train; and determining which branch track the train is on from a comparison of the positions to the data base.
Claim 2
Independent Claim
85 words
A method of determining location of a train having rail vehicles on a track, the method comprising: determining a first position of a portion of the train prior to or at a switch in the track; determining a second position of a portion of the train after the switch in the track; comparing the determined first and second positions to a data base on the train; and determining which branch track the train is on from a comparison of the positions to the data base.
Claim 3
Dependent Claim
23 words
A method according to claim 1 , wherein the first and second positions are determined simultaneously at two spaced portions of the train.
Claim 4
Dependent Claim
23 words
A method according to claim 1 , wherein the first and second positions are determined sequentially at the same portion of the train.
Claim 5
Dependent Claim
43 words
A method according to claim 1 , wherein determining the location of the train on the track from the comparison includes determining an error between the first determined position and the data base and assume the same error for the second determined position.
References Cited (Backward Citations)
US4638438A
Cited
US4863123A
Cited
US4807127A
Cited
US5129605A
Cited
US5574649A
Cited
US5394333A
Cited
US5437422A
Cited
US5334986A
Cited
US5374933A
Cited
US5590856A
Cited
US5809448A
Cited
US5740547A
Cited
US5791063A
Cited
US5867122A
Cited
US6218961B1
Cited
US6135396A
Cited
US5969643A
Cited
US6081769A
Cited
US6128558A
Cited
US6246956B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-11-11 | 2006-05-13 | 2006-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-11 | 2010-05-13 | 2010-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-11 | 2014-05-13 | 2014-11-12 | $7700.00 | Window Closed / Lapsed |