Railway rolling stock – Trains – Toy or model train
Reexamination Certificate
2007-04-11
2010-10-12
Morano, S. Joseph (Department: 3617)
Railway rolling stock
Trains
Toy or model train
Reexamination Certificate
active
07810435
ABSTRACT:
A power regulation device and method for a model railway system is provided. The device comprises inputs that connect to a supply of a digital command control (DCC) waveform and to a track section to be powered by the DCC waveform. The device comprises a current measuring circuit that measures current flow associated with the DCC waveform supplied at the inputs. A switch is connected between the inputs and outputs that are in turn connected to respective rails of the track section. A controller is provided that analyzes a current measurement signal produced by the current measuring circuit and controls the switch to disconnect supply of the DCC waveform to the outputs when a true over-current condition is detected. The device may also comprise an auto-reversing function to accommodate reverse loop track sections.
REFERENCES:
patent: 6356423 (2002-03-01), Hastings et al.
patent: 6631063 (2003-10-01), Ortiz et al.
patent: RE38600 (2004-09-01), Mankovitz
patent: 7279871 (2007-10-01), Pierson
Paul Chandler, “Power Districts for Digital Command Wiring your DCC Layout with Circuit Breakers to Limit Operating Interruptions,” Nov. 17, 2006, pp. 90-92, Kalmbach Publishing Co., www.modelrailroader.com.
Maier Lawrence C.
Parisi Anthony R.
Edell Shapiro & Finnan LLC
McCarry, Jr. Robert J
Morano S. Joseph
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