U.S. patents available from 1976 to present.
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Patent No. 5285430

Behavior Modification Wristwatch

A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.

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Class 191/5 - Alternating direct


Subclass of Class 191 - Electricity: transmission to vehicles
Definition: Systems of distribution of the convertible multiple current
No. of patents: 5
Last issue date: 08/02/1994


NumberTitleIssue Date
5334878Inverter control for third rail head end power
A system provides dual power producing capability to a diesel locomotive. The diesel engine drives the power generating system on the locomotive when the locomotive is operating under normal conditions. An inverter is provided to drive the power generatin...
08/02/1994
4795859Control device for electric train
A control device for an electric train formed of plural coupled carriages each of which receive power from an overhead power line via a collector, wherein each carriage is provided with a power converter for converting power from the overhead line to a su...
01/03/1989
4062294Model railway power supply
A model railway or road vehicle installation in which vehicle-mounted electric drive motors are supplied through contact with track conductors, including a power supply providing an intrinsically safe a.c. component of such frequency and amplitude as to b...
12/13/1977
3998305Arrangement in current supply systems
In a current supply system for wheeled vehicles which includes a DC generating device and substantially parallel running over-head lines provided with current collectors, a closed AC circuit is provided which is independent of the current collector and in...
12/21/1976
3940680A.C. - D.C. power converter for D.C. load
A power converter which can operate with both a D.C. power source and an A.C. power source for supplying electric power to a D.C. load such as a D.C. motor. The power converter comprises thyristors, a diode, a reactor and a capacitor. A plurality of serie...
02/24/1976
 
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