Westinghouse Brake & Signal Company Ltd.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Westinghouse Brake & Signal Company Ltd..The latest application filed is for "circuit arrangement for testing the correct functioning of circuit(s)".
Company Profile
0.45.0
- Westinghouse Brake & Signal Company Ltd. - Pew Hill GB3
- Westinghouse Brake & Signal Co. Ltd. - Chippenham GB
- Westinghouse Brake and Signal Company Limited - Wiltshire GB3
- Westinghouse Brake and Signal Company Ltd. - GB GB
- Westinghouse Brake and Signal Company Limited - GB3 GB3
- Westinghouse Brake and Signal Company, Ltd. - Wiltshire GB2
- Westinghouse Brake & Signal Co. Ltd. - GB2 GB2
- Westinghouse Brake and Signal Company Limited - GB2 GB2
- Westinghouse Brake and Signal Co. Limited - Chippenham GB2
- Westinghouse Brake & Signal Co. Ltd. - London GB2
- Westinghouse Brake and Signal Company Limited - London GB2
- Westinghouse Brake & Signal Co. Ltd. - EN EN
Patent Activity
| Patent | Date |
|---|---|
| Circuit arrangement for testing the correct functioning of circuit(s) Grant 4,901,008 - Quastel , et al. February 13, 1 | 1990-02-13 |
| Railway signalling system Grant 4,860,977 - Norton August 29, 1 | 1989-08-29 |
| Vehicle tracking system Grant 4,768,740 - Corrie September 6, 1 | 1988-09-06 |
| Vehicle protection system Grant 4,742,460 - Hollands May 3, 1 | 1988-05-03 |
| Communicating vital control signals Grant 4,735,383 - Corrie April 5, 1 | 1988-04-05 |
| Electric actuators Grant RE32,610 - Washbourn , et al. February 23, 1 | 1988-02-23 |
| Actuator emergency operation Grant 4,644,180 - Wickham February 17, 1 | 1987-02-17 |
| F.M. demodulator with fail-safe features Grant 4,560,943 - Negus , et al. December 24, 1 | 1985-12-24 |
| Railway signalling receiver Grant 4,516,249 - Cook , et al. May 7, 1 | 1985-05-07 |
| Vital transmission checking apparatus for communication channels Grant 4,494,717 - Corrie , et al. January 22, 1 | 1985-01-22 |
| Interlock valve for railway braking system valve assembly Grant 4,478,460 - Wickham October 23, 1 | 1984-10-23 |
| Arrangement for aligning and attaching a shim to a semiconductor element Grant 4,477,826 - Oley October 16, 1 | 1984-10-16 |
| Information display apparatus Grant 4,438,432 - Hurcum March 20, 1 | 1984-03-20 |
| Rail vehicle braking apparatus Grant 4,319,787 - Wickham March 16, 1 | 1982-03-16 |
| Railway control signal dynamic output interlocking systems Grant 4,305,556 - Norton , et al. December 15, 1 | 1981-12-15 |
| Slack adjuster means Grant 4,234,064 - Tregoning November 18, 1 | 1980-11-18 |
| Piston means for piston-cylinder arrangements Grant 4,203,353 - Burnham , et al. May 20, 1 | 1980-05-20 |
| Sensing arrangements Grant 4,142,152 - Fincher February 27, 1 | 1979-02-27 |
| Door mountings Grant 4,106,876 - Tregoning August 15, 1 | 1978-08-15 |
| Spring-force applying means Grant 4,080,876 - Sturgess , et al. March 28, 1 | 1978-03-28 |
| Rail vehicle brake pipe valve arrangement having a fluid pressure drop detector and a vent valve controlled thereby for brake pipe pressure gradient reduction Grant 4,043,606 - Wickham August 23, 1 | 1977-08-23 |
| Fluid pressure apparatus Grant 3,948,083 - Wickham April 6, 1 | 1976-04-06 |
| Vehicle speed signal pulse source Grant 3,939,416 - Maskery February 17, 1 | 1976-02-17 |
| Battery charging control circuits Grant 3,936,718 - Melling , et al. February 3, 1 | 1976-02-03 |
| Rail train vehicle brake control apparatus utilizing common analog control and A.C. supply signals Grant 3,920,285 - Maskery November 18, 1 | 1975-11-18 |
| Door operating controls Grant 3,891,909 - Newson June 24, 1 | 1975-06-24 |
| Battery chargers Grant 3,890,556 - Melling , et al. June 17, 1 | 1975-06-17 |
| Inverters Grant 3,839,667 - King October 1, 1 | 1974-10-01 |
| Braking Condition Indicator For Rapid Transit Trains Grant 3,838,272 - Bull September 24, 1 | 1974-09-24 |
| Braking Systems Grant 3,823,984 - Parfitt , et al. July 16, 1 | 1974-07-16 |
| Proving Circuits For Vehicle Wheel Spin Or Slide Correction Apparatus Grant 3,823,373 - Pike July 9, 1 | 1974-07-09 |
| Valve Means Grant 3,799,498 - Wickham , et al. March 26, 1 | 1974-03-26 |
| Automatic Voltage Control Apparatus For Electrostatic Precipitators Grant 3,772,853 - Burge , et al. November 20, 1 | 1973-11-20 |
| Fluid Pessure Operable Brake Control Valves Grant 3,734,575 - Paginton May 22, 1 | 1973-05-22 |
| Brake Control Valve Apparatus Grant 3,731,983 - Washbourn May 8, 1 | 1973-05-08 |
| Fluid Pressure Operable Brake Control Valves Grant 3,731,982 - Paginton May 8, 1 | 1973-05-08 |
| A Selective Control System For Dispatching Articles On A Conveyor Grant 3,725,867 - Jordan April 3, 1 | 1973-04-03 |
| Inverter Circuit Grant 3,657,634 - Eastop April 18, 1 | 1972-04-18 |
| Method Of Manufacturing Radiation-sensitive Semiconductor Devices Grant 3,651,564 - Glass March 28, 1 | 1972-03-28 |
| Duty Cycle Control Apparatus Grant 3,624,475 - Smith November 30, 1 | 1971-11-30 |
| Heat Sink Mountings For Rectifier Devices Grant 3,624,452 - Hayward , et al. November 30, 1 | 1971-11-30 |
| Manufacture Of Semiconductor Elements Grant 3,624,677 - Pearson November 30, 1 | 1971-11-30 |
| Controllable Rectifier Circuits With Energy Recovery Networks Grant 3,622,863 - King November 23, 1 | 1971-11-23 |
| Electrical Chopper Regulator Circuits Grant 3,614,586 - King October 19, 1 | 1971-10-19 |
| Fail-safe Transistor Gate Circuit Grant 3,584,236 - Greatrex June 8, 1 | 1971-06-08 |
Company Registrations
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