Industry Patents

Patent: 3924120

Heater Remote Control System

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Patent Number: 3924120 
Title: Heater Remote Control System 
Abstract: A remote control system including infrared transmission means for coupling control signals simultaneously to remotely located instruments from a central station via either a plurality of modulated carriers or digital code words which carry the control information. The remote control system further includes a control coordination means whereby the control of various combinations of instruments can be coordinated. Associated with each instrument is a separator circuit for selecting only the control signal for that instrument, and a controlled device operated upon by such selected control signal and supplying a controlled amount of power to the instrument. By utilizing an infrared transmission means, and placing the controlled device with each instrument, the necessity of installing large numbers of separate, independent circuits is eliminated, and increased flexibility of control is achieved.  
Country of Issue: US 
First Named Inventor: Cox 
Assignee:  
Continuation or Divisional of:  
International Classification: H04B 9/00 
US Classification: 250/199 
Issue Date: 12-02-1975 
Filing Date: 09-14-1973 
Application : 397219 
Notes: Heater should be Theater 
Link to Patent at freepatentsonline.com: 3924120 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 3924120 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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