Headlamp for both day and night driving

• US 3,262,011 A
• Filed: 07/02/1963
• Issued: 07/19/1966
• Est. Priority Date: 07/02/1963
• Status: Expired due to Term

• Current Assignee: Buren Cones Van
• Original Assignee: Buren Cones Van
• Inventors: BUREN CONES VAN
• Application Number:
  US04/292,345
• Time in Patent Office: 1,113 Days
• US Class Current: 315/82
• CPC Class Codes: B60Q 1/1415 Dimming circuits

Claims

1. IN A VEHICLE HAVING AN IGNITION SYSTEM, A HEADLAMP HAVING BOTH HIGH AND LOW BEAM FILAMENTS, A SOURCE OF ELECTRICAL ENERGY, AND CIRCUITS BETWEN SAID SOURCE, SAID FILAMENTS, AND SAID SYSTEM, THE COMBINATION THEREWITH OF A FILAMENT CONTROL SWITCH IN ONE OF SAID CIRCUITS INCLUDING SAID FILAMENTS WHEREIN THE SWITCH SELECTIVELY MAY SET UP AN OPEN CIRCUIT CONDITION IN RESPECT TO SAID ENERGY SOURCE AND BOTH OF SAID FILAMENTS, A CLOSED CIRCUIT CONDITION IN RESPECT TO THE ENERGY SOURCE AND THE HIGH BEAM FILAMENT ONLY, AND A CLOSED CIRCUIT CONDITION IN RESPECT TO SAID SOURCE AND THE LOW BEAM FILAMENT ONLY;

AN IGNITION SWITCH IN ANOTHER OF SAID CIRCUITS CONTROLLING SAID IGNITION SYSTEM AND BEING IN THE CIRCUIT BETWEEN SAID SOURCE AND SAID SYSTEM;

AND A RESISTOR INTERCONNECTING SAID LOW BEAM FILAMENT CIRCUIT WITH SAID IGNITION SYSTEM CIRCUIT BETWEEN SAID CONTROL SWITCH AN THE LOW BEAM FILAMENT AND BETWEEN SAID INGITION SWITCH AND THE IGNITION SYSTEM RESPECTIVELY;

PROVIDING ENERGIZATION OF THE LOW BEAM FILAMENT ONLY THROUGH SAID RESISTOR WHEN THE IGNITION SWITCH IS CLOSED AND THE FILAMENT CONTROL SWITCH IS IN THE OPEN CIRCUIT CONDITION SAID RESISTOR CAUSING THE LOW BEAM FILAMENTS TO PROVIDE A DIMINISHED ILLUMINATION.