Vehicle signal device

• US 3,233,217 A
• Filed: 12/18/1962
• Issued: 02/01/1966
• Est. Priority Date: 12/18/1962
• Status: Expired due to Term

• Current Assignee: George F. Bost Jr
• Original Assignee: George F. Bost Jr
• Inventors: Bost, George F. Jr.
• Application Number:
  US04/245,447
• Time in Patent Office: 1,141 Days
• US Class Current: 340/901
• CPC Class Codes: B60K 37/00 Dashboards as road-vehicle superstructure sub-units B62D25/14
• CPC Class Codes: G08B 1/00 Systems for signalling characterised solely by the form of transmission of the signal
• CPC Class Codes: G08G 1/096716 where the received information does not generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096758 where no selection takes place on the transmitted or the received information
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station
• CPC Class Codes: G08G 1/096783 where the origin of the information is a roadside individual element

Claims

9. IN A WARNING SYSTEM FOR INDICATING THE APPROACH OF A PLURALITY OF DIFFERENT EMERGENCEY VEHICLES TO AT LEAST ONE MOVING VEHICLE EQUIPPED WITH AN ALERTING DEVICE WHEREIN EACH OF SAID EMERGENCY VEHICLES WHEN IN MOTION EMITS SIGNAL ENERGY AT A COMMON CARRIER FREQUENCY MODULATED AT DIFFERENT MODULATING FREQUENCIES CORRESPONDING TO THE RESPECTIVE EMERGENCY VEHICLES, SAID ALERTING DEVICE COMPRISING, RECEIVING MEANS TUNED TO SAID COMMON CARRIER FREQUENCY FOR RECEIVING AND DEMODULATING SIGNAL ENERGY EMITTED BY ALL OF THE EMERGENCY VEHICLES WITHIN A LIMITED SIGNAL RANGE OF EACH OF SAID EMERGENCY VEHICLES, A PLURALITY OF IDENTIFYING INDICATORS MOUNTED IN SAID MOVING VEHICLE, EACH INDICATOR CORRESPONDING TO A DIFFERENT EMERGENCY VEHICLE, AND MEANS OPERATIVELY CONNECTING EACH OF SAID INDICATORS TO THE RECEIVING MEANS FOR ENERGIZATION IN RESPONSE TO DEMODULATION OF SIGNAL ENERGY AT ONE OF THE DIFFERENT MODULATING FREQUENCIES.