Vehicle light control

• US 3,121,823 A
• Filed: 09/25/1959
• Issued: 02/18/1964
• Est. Priority Date: 09/25/1959
• Status: Expired due to Term

• Current Assignee: Eugene W. Brock, George W. Onksen
• Original Assignee: Eugene W. Brock, George W. Onksen
• Inventors: Brock, Eugene W., Onksen, George W.
• Application Number:
  US03/842,265
• Time in Patent Office: 1,607 Days
• US Class Current: 315/83
• CPC Class Codes: B60Q 1/1415 Dimming circuits
• CPC Class Codes: H01H 47/00 Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
• CPC Class Codes: H01H 50/68 with snap action

Claims

5. IN A VEHICLE LIGHTING SYSTEM HAVING BRIGHT AND DIM FILAMENTS, THE COMBINATION INCLUDING, A VOLTAGE SOURCE, FIRST SWITCH MEANS FOR ALTERNATIVELY CONNECTING SAID VOLTAGE SOURCE TO SAID BRIGHT OR DIM FILAMENTS FOR NORMAL OPERATION THEREOF, SECOND SWITCH MEANS FOR CONNECTING SAID BRIGHT FILAMENT TO SAID VOLTAGE SOURCE THROUGH A VOLTAGE DROPPING RESISTANCE TO PROVIDE REDUCED INTENSITY OPERATION OF SAID BRIGHT FILAMENTS, MEANS FOR CONCURRENTLY ACTUATING SAID FIRST AND SECOND SWITCH MEANS TO CHANGE FROM BRIGHT FILAMENT ONLY OPERATION TO SIMULTANEOUS OPERATION OF BOTH BRIGHT AND DIM FILAMENTS WITH SAID BRIGHT FILAMENT OPERATING AT A REDUCED INTENSITY, SAID SECOND SWITCH MEANS INCLUDING SNAP ACTION BIMETALLIC CURRENT RESPONSIVE MEANS FOR OPENING SAID CONNECTION BETWEEN SAID BRIGHT FILAMENT AND SAID VOLTAGE SOURCE THROUGH SAID RESISTANCE A PREDETERMINED TIME AFTER SAID CONNECTION HAS BEEN MADE BY SAID SECOND SWITCH MEANS, AND AMBIENT TEMPERTURE RESPONSIVE MEANS CONNECTED TO SAID SNAP ACTION MEANS TO PROVIDE FOR CONSTANT TIME DELAY AT DIFFERENT AMBIENT TEMPERATURES.