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Class Information
Number: 246/246
Name: Railway switches and signals > Electric actuation > Car-actuated circuit controllers
Description: Subject matter in which circuit closing or breaking devices are actuated by the wheels or tappets of moving cars, including the so-called "track instruments" and "treadles" of railway signaling.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7392117 |
Data logging, collection, and analysis techniques |
Jun. 24, 2008 |
| 7292144 |
Apparatus and method for contact-less switching |
Nov. 6, 2007 |
| 6696805 |
Software-driven motor and solenoid controller |
Feb. 24, 2004 |
| 6445150 |
Software-driven motor and solenoid controller |
Sep. 3, 2002 |
| 6102340 |
Broken rail detection system and method |
Aug. 15, 2000 |
| 5924652 |
Island presence detected |
Jul. 20, 1999 |
| 5752677 |
Block occupancy detector for model railroads |
May. 19, 1998 |
| 5740992 |
Apparatus for continuously measuring the position of a moving rail vehicle |
Apr. 21, 1998 |
| 5678789 |
Model railroad car position indicator |
Oct. 21, 1997 |
| 5590856 |
Complex switch turn-out arrangements using proximity selection |
Jan. 7, 1997 |
| 5529267 |
Railway structure hazard predictor |
Jun. 25, 1996 |
| 5492290 |
Model railroad operation using proximity selection |
Feb. 20, 1996 |
| 5462244 |
System for detecting trains |
Oct. 31, 1995 |
| 5330136 |
Railway coded track circuit apparatus and method utilizing fiber optic sensing |
Jul. 19, 1994 |
| 5178349 |
Railroad signal system |
Jan. 12, 1993 |
| 5158253 |
Railway track mounting arrangement |
Oct. 27, 1992 |
| 4895324 |
Reusable derailment detection and signaling device |
Jan. 23, 1990 |
| 4863123 |
Process and system for localizing a mobile unit which travels on a system of railroads |
Sep. 5, 1989 |
| 4820057 |
Method and apparatus to contactlessly measure the brake temperatures of passing railroad cars |
Apr. 11, 1989 |
| 4387870 |
Transit vehicle shunt determination |
Jun. 14, 1983 |
| 4133506 |
Derail signal switch |
Jan. 9, 1979 |
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