Warning system and switches therefor

• US 3,380,046 A
• Filed: 08/23/1965
• Issued: 04/23/1968
• Est. Priority Date: 08/23/1965
• Status: Expired due to Term

• Current Assignee: Thomas A. Paonessa
• Original Assignee: Thomas A. Paonessa
• Inventors: Paonessa, Thomas A.
• Application Number:
  US04/481,808
• Time in Patent Office: 974 Days
• US Class Current: 340/467
• CPC Class Codes: B60Q 1/445 controlled by inertial devices
• CPC Class Codes: B60R 21/08 automatically movable from an inoperative to an operative position, e.g. in a collision electrical circuits for triggering safety arrangements B60R21/01
• CPC Class Codes: G01F 1/68 by using thermal effects
• CPC Class Codes: G08B 21/182 Level alarms, e.g. alarms responsive to variables exceeding a threshold
• CPC Class Codes: H01H 35/06 Switches operated by change of speed operated by change of fluid flow H01H35/24

Claims

1. A VEHICLE DECELERATION WARNING SYSTEM COMPRISING A WARNING DEVICE, AN ELECTRICAL CIRCUIT INCLUDING SAID WARNING DEVICE, AND A NORMALLY OPEN SWITCH IN SAID CIRCUIT WHICH CLOSES UPON DECELERATION OF THE VEHICLE TO ENERGIZE SAID WARNING DEVICE;

SAID SWITCH COMPRISING A CASE HAVING A HORIZONTAL AXIS;

SAID CASE BEING MADE OF ELECTRICALLY NON-CONDUCTIVE MATERIAL;

SAID CASE HAVING OPPOSITE FIRST AND SECOND ENDS, INTERMEDIATE SIDE WALLS, AND A TOP WALL DEFINING AN INTERNAL CHAMBER;

A METAL ELECTRICALLY CONDUCTIVE BOTTOM PLATE ON SAID CASE CONNECTED IN ONE SIDE OF SAID CIRCUIT;

A METAL BALL IN SAID CASE CHAMBER IN ELECTRICAL CONTACT WITH SAID METAL PLATE;

A METAL CAGE OVER SAID METAL BALL IN ELECTRICAL CONTACT WITH SAID BALL;

A SPRING LYING BETWEEN SAID CAGE AND A FIRST END WALL OF SAID CASE NORMALLY LOCATING SAID CAGE AND BALL AT THE SECOND END OF SAID CASE MEMBER;

A TERMINAL CONNECTED TO THE OTHER SIDE OF SAID CIRCUIT EXTENDING THROUGH SAID CASE FIRST END WALL INTERNALLY OF AND OUT OF CONTACT WITH SAID SPRING;

SAID CASE AXIS BEING ALIGNED WITH THE VEHICLE AXIS WITH SAID FIRST WALL AND TERMINAL FACING FORWARDLY IN THE VEHICLE;

SAID BALL AND CAGE UPON DECELERATION OF THE VEHICLE COMPRESSING SAID SPRING TO CONTACT SAID TERMINAL THEREBY CLOSING THE CIRCUIT TO ENERGIZE SAID WARNING DEVICE.