| Patents for B61K 9 - Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles (2,428) |
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| 09/18/1979 | US4168132 Bracket assembly |
| 08/28/1979 | US4166291 Chord liner using angle measurement |
| 06/05/1979 | CA1056045A1 Flat wheel detector |
| 05/22/1979 | US4155526 Railroad car wheel measuring apparatus |
| 05/22/1979 | US4155176 Process and apparatus for measuring the geometric state of a railway track during correction thereof |
| 02/06/1979 | US4137760 Measuring wheel |
| 12/12/1978 | US4129276 Technique for the detection of flat wheels on railroad cars by acoustical measuring means |
| 10/10/1978 | US4119284 Railroad hotbox indicator |
| 09/12/1978 | US4113211 Hot box detector bearing discriminator circuit |
| 07/18/1978 | US4100795 Process and a system for measuring and recording undulatory deformations of a rail surface |
| 02/28/1978 | US4076192 Apparatus for detecting a high flange |
| 02/28/1978 | US4075888 Measurement of undulatory wear along railroad tracks |
| 01/24/1978 | US4069590 Rail wear measurement system |
| 01/17/1978 | US4068811 Hotbox detector |
| 11/15/1977 | US4058279 Flat wheel detector |
| 08/30/1977 | US4044594 Ultrasonic track testing carriage |
| 08/09/1977 | US4040738 Railroad track profile spacing and alignment apparatus |
| 06/14/1977 | US4029859 Thermal sensor and current generator |
| 06/07/1977 | US4027397 Mobile track surveying apparatus |
| 02/01/1977 | US4005601 Apparatus for detecting rail discontinuities |
| 12/21/1976 | US3998549 Method for measuring the temperature of axle bearings of vehicles |
| 11/30/1976 | US3994459 Railway vehicle derailment detection system |
| 11/30/1976 | US3994458 Hot box detector system |
| 11/23/1976 | US3992935 Method and apparatus for indicating track conditions |
| 06/01/1976 | US3960005 Ultrasonic testing device for inspecting thermit rail welds |
| 02/17/1976 | US3939331 Railroad track survey apparatus |
| 02/10/1976 | US3937429 Apparatus for detecting hot journal boxes |
| 01/06/1976 | US3930629 Overheated journal bearing derailment prevention system |