Invention Grant
- Patent Title: Railroad switch signaling device
- Patent Title (中): 铁路开关信号装置
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Application No.: US13067684Application Date: 2011-06-21
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Publication No.: US08341851B1Publication Date: 2013-01-01
- Inventor: Jim Arnold
- Applicant: Jim Arnold
- Agent Theodore J. Bielen, Jr.
- Main IPC: G01B5/25
- IPC: G01B5/25 ; B61L5/00

Abstract:
An apparatus for indicating the position of a point detector bar having an outer surface and linked to a moveable point associated with a fixed rail utilizing a probe. The probe is moveable to contact and ride on the outer surface of the point detector bar. A housing is connected to the probe and is moveable toward point detector bar also. A leg is positioned relative to the housing to form a unit. The leg is moveable within and relative to the housing when the probe contacts a certain portion of the outer surface of the point detector bar. A driver is linked to the leg and the housing unit and moves the housing and connected probe toward the point detector bar. A signal generator alerts the relative movement between the housing and leg within the housing and the probe contacts a certain portion of the outer surface of the point detector bar which may take the form of an enlarged diameter area.
Public/Granted literature
- US20120324748A1 RAILROAD SWITCH SIGNALING DEVICE Public/Granted day:2012-12-27
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