US5369587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer controlled railway brake equipment
Assignee: Knorr Brake Holding Corp
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Filing: 1994-02-07
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Granted: 1994-11-29
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Expires: 2014-02-07
Abstract
Abstract A computerized locomotive control system receiving as inputs electrical signals representing automatic and independent braking control signals and a computer for determining, from said input signals, electrical signals representing desired equalization reservoir pressure, desired independent application and release pressure and desired actuating pressure. Electro-pneumatic valves controls the pressure in the equalization reservoir, on the independent application and release pipe and as the actuating pipe in response to the desired pressure signals. A electro-pneumatic valve for the control reservoir of the locomotive brake is controlled by the computer in response to pipe pressures. The computer provides penalties and interlocks electrically.
Inventors
- 👤 Kevin B. Root
- 👤 John J. Allen, Jr.
- 👤 Ronald O. Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:42
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/228; B60T13/00; B60T13/10; B60T13/66; B60T13/665
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
93 words
A computerized locomotive control system for a locomotive having a brake pipe, independent application and release pipe, and an actuating pipe, said system comprising: a control stand having automatic brake and independent brake handles; means for applying pneumatically an emergency pressure to said brake pipe when said automatic brake handle is in an emergency position; means for converting positions of said handles into automatic and independent braking electrical signals; and computer means for controlling pressure on said brake pipe, independent application and release pipe and actuating pipe in response to said braking signals.
Claim 2
Dependent Claim
93 words
A computerized locomotive control system for a locomotive having a brake pipe, independent application and release pipe, and an actuating pipe, said system comprising: a control stand having automatic brake and independent brake handles; means for applying pneumatically an emergency pressure to said brake pipe when said automatic brake handle is in an emergency position; means for converting positions of said handles into automatic and independent braking electrical signals; and computer means for controlling pressure on said brake pipe, independent application and release pipe and actuating pipe in response to said braking signals.
Claim 3
Dependent Claim
102 words
A computerized locomotive control system for a locomotive having a brake cylinder, a brake pipe and at least one of the following pipes a) main reservoir equalization pipe, b) independent application and release pipe and c) actuating pipe, said system comprising: input means for receiving electrical signals representing braking control signals and electrical signals representing leading and trailing modes in said locomotive; computer means for controlling pressure on said pipes in response to said braking control signals only in said leading mode and not in said trailing mode; and means for controlling said brake cylinder in response to pressure on said pipes.
Claim 4
Dependent Claim
102 words
A computerized locomotive control system for a locomotive having a brake cylinder, a brake pipe and at least one of the following pipes a) main reservoir equalization pipe, b) independent application and release pipe and c) actuating pipe, said system comprising: input means for receiving electrical signals representing braking control signals and electrical signals representing leading and trailing modes in said locomotive; computer means for controlling pressure on said pipes in response to said braking control signals only in said leading mode and not in said trailing mode; and means for controlling said brake cylinder in response to pressure on said pipes.
Claim 5
Dependent Claim
86 words
A computerized locomotive control system for a locomotive having a brake pipe and at least one of the following pipes a) main reservoir equalization pipe, b) independent application and release pipe and c) actuating pipe, said system comprising: input means for receiving automatic and independent braking electrical signals; and computer means for controlling pressure on said pipes in response to said braking signals and controlling pressure on said brake pipe to at least a full service brake pipe pressure for absence of said automatic braking signals.
Claim 6
Dependent Claim
86 words
A computerized locomotive control system for a locomotive having a brake pipe and at least one of the following pipes a) main reservoir equalization pipe, b) independent application and release pipe and c) actuating pipe, said system comprising: input means for receiving automatic and independent braking electrical signals; and computer means for controlling pressure on said pipes in response to said braking signals and controlling pressure on said brake pipe to at least a full service brake pipe pressure for absence of said automatic braking signals.
Claim 7
Dependent Claim
32 words
A computerized locomotive control system according to claim 3 wherein said computer means controls said independent application and release pipe to a brake release pressure for absence of said independent braking signals.
References Cited (Backward Citations)
US3380399A
Cited
US3519805A
Cited
US3910639A
Cited
US4042810A
Cited
US4005838A
Cited
US4052109A
Cited
US4107253A
Cited
US4181369A
Cited
US4316640A
Cited
US4347569A
Cited
US4344138A
Cited
US4402047A
Cited
US4555766A
Cited
US4534599A
Cited
US4582280A
Cited
US4553723A
Cited
US4598953A
Cited
US4652057A
Cited
US4854648A
Cited
US4830437A
Cited
US4859000A
Cited
US4904027A
Cited
US5104203A
Cited
US5192118A
Cited
US5222788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-28 | 1998-05-30 | 1998-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-28 | 2002-05-30 | 2002-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-28 | 2006-05-30 | 2006-11-29 | $7700.00 | Window Closed / Lapsed |