Fire extinguisher warning system

• US 3,145,375 A
• Filed: 05/29/1961
• Issued: 08/18/1964
• Est. Priority Date: 05/29/1961
• Status: Expired due to Term

• Current Assignee: Vern B. Webb
• Original Assignee: Vern B. Webb
• Inventors: Webb, Vern B.
• Application Number:
  US04/113,441
• Time in Patent Office: 1,177 Days
• US Class Current: 340/568.8
• CPC Class Codes: A62C 37/50 Testing or indicating devices for determining the state of readiness of the equipment
• CPC Class Codes: H05B 39/09 in which the lamp is fed by pulses automatic circuit devices built into or on the incandescent lamp H01K1/625; vehicle winking devices B60Q1/38

Claims

1. IN COMBINATION WITH A FIRE EXTINGUISHER AND A HANGER MEANS FOR THE SAME, A WARNING SYSTEM ADAPTED TO INDICATE THE PRESENCE, REMOVAL AND RETURN OF A FIRE EXTINGUISHER ON, FROM AND TO ITS HANGER BY EMANATION OF SELECTED, DISTINCTIVE SIGNALS, AND COMPRISING:

(A) A TWO-WAY SWITCH HAVING A SWITCH LEG ASSOCIATED WITH THE HANGER MEANS AND BEING ADAPTED TO CLOSE WITH A FIRST CONTACT WHEN THE FIRE EXTINGUISHER IS ON THE HANGER AND TO CLOSE WITH A SECOND CONTACT WHEN THE FIRE EXTINGUISHER IS REMOVED FROM THE HANGER;

(B) A TWO-LEAD POWER SUPPLY, HAVING A FIRST LEAD CONNECTING WITH SAID SWITCH LEG AND HAVING A SECOND LEAD BIFURCATED TO FORM TWO CIRCUIT LOOPS WITH A FIRST CIRCUIT BEING CONNECTED WITH SAID FIRST CONTACT AND WITH A SECOND CIRCUIT BEING CONNECTED WITH SAID SECOND CONTACT, WHEREBY MOVEMENT OF THE SWITCH LEG ONTO THE FIRST CONTACT ENERGIZES THE FIRST CIRCUIT AND MOVEMENT OF THE SWITCH LEG ONTO THE SECOND CONTACT ENERGIZES THE SECOND CIRCUIT;

(C) A PULSING MEANS AND A FIRST LIGHT IN SAID FIRST CIRCUIT WITH THE PULSING MEANS BEING ADAPTED TO FLASH THE LIGHT WHEN THE SWITCH LEG CLOSES AGAINST SAID FIRST CONTACT TO ENERGIZE THE SAID FIRST CIRCUIT;

(D) A SECOND LIGHT IN SAID SECOND CIRCUIT ADAPTED TO BURN STEADILY WHEN THE SWITCH LEG CLOSES AGAINST SAID SECOND CONTACT TO ENERGIZE THE SAID SECOND CIRCUIT;

(E) A HOLDING LEAD SHUNTING THE SWITCH LEG AND SAID SECOND CONTACT OF THE TWO-WAY SWITCH;

(F) A NORMALLY OPEN HOLDING SWITCH IN THE HOLDING LEAD ADAPTED TO REMAIN CLOSED ONCE IT IS CLOSED;

AND, (G) A CLOSING MEANS THEREFOR IN SAID SECOND CIRCUIT TO CLOSE THE HOLDING SWITCH WHENEVER THE SAID SECOND CIRCUIT IS ENERGIZED.