Relay control circuit

• US 3,359,426 A
• Filed: 11/27/1964
• Issued: 12/19/1967
• Est. Priority Date: 11/27/1964
• Status: Expired due to Term

• Current Assignee: George S. Burr
• Original Assignee: George S. Burr
• Inventors: Burr, George S.
• Application Number:
  US04/414,185
• Time in Patent Office: 1,117 Days
• US Class Current: 307/38
• CPC Class Codes: H01H 47/001 Functional circuits, e.g. logic, sequencing, interlocking circuits

Claims

1. A RELAY CONTROL MODULE COMPRISING A PAIR OF MAIN LEADS, A MAIN MODULE SWITCH, A MOMENTARILY ACTUABLE FIRST RELAY, AND A SECOND RELAY, SAID FIRST RELAY INCLUDING A FIRST SWITCH NORMALLY CONNECTING PORTIONS OF A FIRST OF SAID MAIN LEADS BUT ACTUATED BY ENERGIZATION OF SAID FIRST RELAY TO COMPLETE A CIRCUIT THROUGH A RUNG LEAD AND SAID SECOND RELAY, AND A SECOND SWITCH NORMALLY CONNECTING PORTIONS OF THE SECOND OF SAID MAIN LEADS AND ACTUATED BY ENERGIZATION OF SAID FIRST RELAY TO OPEN, SAID FIRST RELAY SECOND SWITCH BEING ON THE SIDE OF SAID RUNG LEAD MOST DISTANT FROM THE PORTION OF SAID SECOND MAIN LEAD ADAPTED FOR CONNECTION TO GROUND AND SAID FIRST RELAY FIRST SWITCH BEING ON THE OPPOSITE SIDE OF SAID RUNG LEAD, AND SAID SECOND RELAY INCLUDING A FIRST SWITCH NORMALLY OPEN BUT ACTUATED BY SAID SECOND RELAY TO MAINTAIN A CIRCUIT THROUGH SAID RUNG LEAD AND SAID SECOND RELAY AND A SECOND SWITCH NORMALLY OPEN BUT ACTUATED BY ENERGIZATION OF SAID SECOND RELAY TO SUPPLY CURRENT TO A LOAD.