| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 246257000 | FLUID-MOTOR ACTUATION | 6 |
| 20120074267 | RELAY FOR TOY TRACK SET - A relay for a toy track set, the relay having, a first actuator in a first plane; a second actuator in a second plane vertically elevated from the first plane; a conduit fluidly coupling the first actuator to the second actuator; and a release mechanism moveably secured to the first actuator for movement between a first position and a second position wherein movement of the release mechanism from the first position towards the second position causes the first actuator to force a fluid through the conduit, wherein the fluid forced through the conduit by the first actuator causes the second actuator to actuate a second release mechanism, wherein the first actuator is coupled to a first vehicle track segment and the second actuator is coupled to a second vehicle track segment. | 03-29-2012 |
| 20140339373 | DUAL INDEPENDENT CONTROL HYDRAULIC SWITCH MACHINE - A hydraulically powered switch machine having power and manual operating modes, and a dual disconnect mechanism. In power operation mode, the machine may be operated remotely, or using controls located on or near the machine. In the event of power failure, the machine may be operated manually. The dual disconnect mechanism physically disconnects the powered throw mechanism when the machine is operating in manual mode and physically disconnects the manual throw mechanism when the machine is operating in power mode, in both cases preventing unexpected movement of the manual throw mechanism. | 11-20-2014 |
| 246258000 | Electric control | 4 |
| 20090308986 | HYDRAULIC MOTOR FOR RAILWAY SWITCHES - A control mechanism for a railroad switch machine, the mechanism including a hydraulic circuit operable to move a rail end point of a switch point assembly of the railroad switch machine, a pump to hydraulically operate the hydraulic circuit, and a motor to operate the pump, wherein the only electromechanical parts of the control mechanism are within the motor. | 12-17-2009 |
| 20110049308 | Hydraulic switch machine for railroads - The invention provides a hydraulic railroad switch machine. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 03-03-2011 |
| 20120018592 | HYDRAULIC OIL CONTROL UNIT FOR SUPPLYING HYDRAULIC OIL ACTUATORS IN SWITCH MACHINES OF RAILWAY POINTS - A hydraulic oil control unit for supplying hydraulic oil actuators in switch machines of railway points or the like is described. The control unit comprises a closed circulation circuit of a hydraulic oil fluid with delivery and return lines. These lines are connected to a hydraulic oil actuator translating point blades of the railway point for moving the point blades from a normal end position to a reverse end position or vice versa. The control unit also includes: electrical means for monitoring the movement of the point blades and/or reaching of the end position, timing means for stopping an actuating stroke of actuators moving the point blades, and means for switching the direction of the actuating stroke. The electrical means comprise switches reversing the power supply signal of an electric motor driving the pump for reversing the rotational direction of the motor and the pump. The switches are driven when the point blades reach a proper end position to reverse the circulation direction of the hydraulic oil fluid flow in the circulation circuit. | 01-26-2012 |
| 20140252175 | Hydraulic switch machine for railroads - The invention provides a hydraulic railroad switch machine. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 09-11-2014 |
