Conductive springs and ball acceleration switch

• US 3,141,936 A
• Filed: 10/17/1962
• Issued: 07/21/1964
• Est. Priority Date: 10/17/1962
• Status: Expired due to Term

• Current Assignee: Earl J. Donaldson, John Boyle
• Original Assignee: Earl J. Donaldson, John Boyle
• Inventors: Boyle, John M., Donaldson, Earl J.
• Application Number:
  US04/231,305
• Time in Patent Office: 643 Days
• US Class Current: 200/61.53
• CPC Class Codes: H01H 35/142 Damping means to avoid unwanted response

Claims

2. AN ACCELERATION SWITCH INCLUDING:

A PAIR OF RADIALLY DISPLACED CONCENTRICALLY ARRANGED ELECTRICAL CONTACTS;

A PAIR OF ELONGATED, CONCENTRICALLY ALIGNED AND RADIALLY DISPLACED COIL SPRING CONDUCTORS, EACH BEING SEPARATELY SUPPORTED AT A FIRST END THEREOF BY A GIVEN CONTACT OF SAID PAIR OF CONTACTS;

A DISPLACEABLE SOLID MASS OF ELECTRICAL CONDUCTING MATERIAL SEATED ON THE SECOND END OF ONE OF SAID SPRINGS AND BIASED THEREBY TO ASSUME A DISPLACED RELATIONSHIP WITH RESPECT TO THE SECOND END OF THE OTHER SPRING OF SAID PAIR OF COIL SPRINGS TO THUS ESTABLISH AN AIRGAP BETWEEN THE MASS AND THE OTHER SPRING;

AND AN ELECTRICAL CIRCUIT LEAD CONNECTED WITH EACH CONTACT OF SAID PAIR OF CONTACTS, WHEREBY AN ELECTRICAL CIRCUIT MAY BE COMPLETED BETWEEN SAID LEADS BY CAUSING SAID MASS TO ACT AGAINST AND COMPRESS SAID ONE OF SAID SPRINGS SUFFICIENTLY FOR ELIMINATING SAID AIR-GAP