| Patents for E01B 27 - Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers (2,756) |
|---|
| 10/10/1978 | US4119154 Method and apparatus for treating ballast |
| 09/26/1978 | CA1039113A1 Track surfacing apparatus |
| 09/26/1978 | CA1039112A1 Track surfacing apparatus |
| 09/05/1978 | US4111129 Method and apparatus for the vibratory tamping of railway tracks |
| 09/05/1978 | US4111128 Switch lifting frame |
| 08/29/1978 | US4109388 Needle indicator for rail liner |
| 08/22/1978 | US4108076 Method for removing ballast from railroad tracks |
| 08/01/1978 | US4103622 Ballast tamping machine |
| 07/25/1978 | US4102066 Scarifying apparatus and method for railroad bed ballast removal |
| 06/27/1978 | US4096806 Track tamper with hingeable unitary pivotable tamping unit |
| 06/13/1978 | US4094251 Mobile track tamping machine |
| 06/13/1978 | US4094250 Mobile track tamping machine |
| 06/13/1978 | US4094249 Apparatus for laying track |
| 06/06/1978 | US4092903 Vibratory drive mechanism |
| 05/30/1978 | US4091739 Resilient single axle truck |
| 05/23/1978 | US4090451 Mobile track tamping machine that tamps three successive cribs |
| 05/02/1978 | US4086692 Apparatus for removing a tamping tool from its holder |
| 04/11/1978 | US4083775 Screening device, railroads |
| 02/21/1978 | US4074631 Ballast tamping implement on a mobile track tamper |
| 01/24/1978 | US4069763 Mobile track tamper |
| 01/17/1978 | US4068596 Mobile ballast tamper |
| 01/17/1978 | US4068595 Track tamper |
| 01/17/1978 | US4068594 Tamping tool |
| 01/03/1978 | US4066020 Mobile track tamping and track position correction machine |
| 12/27/1977 | US4064807 Mobile apparatus for non-stop track leveling and ballast tamping |
| 12/20/1977 | US4063516 Track surfacing |
| 12/13/1977 | US4062292 Utility tamper workhead |
| 12/13/1977 | US4062291 Ballast tamping tool |
| 10/11/1977 | USRE29437 Device for the vertical and lateral displacement of railway track |
| 09/13/1977 | US4047486 Excavator blade for replacing railroad sleepers |
| 09/06/1977 | US4046079 Track surfacing apparatus |
| 09/06/1977 | US4046078 Track surfacing apparatus |
| 08/23/1977 | US4043398 Mobile ballast cleaning machine |
| 08/23/1977 | US4043271 Mobile track tamping machine |
| 08/16/1977 | US4042035 Apparatus for removing, cleaning and replacing railroad ballast |
| 08/09/1977 | US4040292 Method and apparatus for indicating the density of ballast |
| 06/28/1977 | US4031625 Reference system for a track working machine |
| 03/29/1977 | US4014389 Endless ballast conveyor chain |
| 03/08/1977 | US4010692 Process for tamping railway tracks and a movable machine for effecting the process |
| 03/08/1977 | US4010691 Ballast leveling apparatus |
| 01/25/1977 | US4004524 Method of renewal of a railroad track and train therefor |
| 12/28/1976 | US3999276 Method of laying railroad rail |
| 12/21/1976 | US3998165 Ballast tamping tool unit |
| 09/21/1976 | US3981247 Track working machine with vibratory and reciprocable track working tools |
| 08/24/1976 | US3976142 Ballast treating apparatus |
| 07/27/1976 | US3971323 Tamping blade and a hard wear-resistant insert therefor |
| 07/13/1976 | US3968752 Mobile track working machine |
| 07/06/1976 | US3967396 Undercutter with rotary trencher |
| 07/06/1976 | US3967395 Crossing undercutter and switch undercutter mounted on tractor-type vehicle |
| 06/29/1976 | US3965822 Shoulder tamping lifting jack |
| 05/18/1976 | US3957000 Ballast treating method |
| 04/13/1976 | US3949678 Method for tamping and leveling track |
| 03/23/1976 | US3946434 Color television camera with luminance non-uniformity compensation |
| 03/16/1976 | US3943857 Track surfacing |
| 03/09/1976 | US3942448 Apparatus for consolidating ballast |
| 02/24/1976 | US3939774 Apparatus for bonding together pieces of track ballast |