Invention Grant
- Patent Title: Electric-hydraulic railway switch device for moving railroad switch points
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Application No.: US15499890Application Date: 2017-04-28
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Publication No.: US10794008B2Publication Date: 2020-10-06
- Inventor: Dilson dos Santos Rodrigues
- Applicant: Dilson dos Santos Rodrigues
- Agency: Thrasher Associates
- Main IPC: E01B7/00
- IPC: E01B7/00 ; F15B11/16 ; F15B15/26 ; F15B20/00

Abstract:
A railroad switch device for moving railroad switch points is provided. The device includes a hydraulic unit comprising a hydraulic manifold, a hydraulic cylinder to provide constant forward movement and reverse movement, and a hydraulic circuit unit. The railroad switch device also includes a mechanical target to automatically indicate the position of a point rod, where the hydraulic unit is coupled to the point rod. Additionally, the railroad switch device includes a plurality of spring units to produce a continuous thrust force for holding the railroad switch points closed in forward position and reverse position, where the plurality of spring units control the target rotation to approximately 90 degrees. A plurality of proximity sensors detect the point rod position, and a power unit supplies hydraulic power to the hydraulic unit for moving the hydraulic cylinder.
Public/Granted literature
- US20180073198A1 ELECTRIC-HYDRAULIC RAILWAY SWITCH DEVICE FOR MOVING RAILROAD SWITCH POINTS Public/Granted day:2018-03-15
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