Patent US3265823A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3265823A Expired / Lapsed US ⏱️ 0.0 years remaining

Snap action switch with short movement differential

Assignee: Illinois Tool Works Inc
•
Filing: 1964-02-10
•
Granted: 1966-08-09
•
Expires: 1984-02-10
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 George J Bury

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 23:28
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/26; H01H13/28

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 249 words
A SNAP SWITCH MECHANISM COMPRISING, ACTUATOR MEANS FORE RECIPROCAL MOVEMENT BETWEEN FIRST AND SECOND POSITIONS MEANS BIASING SAID ACTUATOR MEANS TO ITS FIRST POSITION, PIVOT MEANS LOCATED ON SAID ACTUATOR MEANS, FIRST AND SECOND FIXED CONTACT MEANS DISPOSED IN SPACED RELATIONSHIP, MOVABLE CONTACT MEANS NORMALLY ENGAGING ONE OF SAID FIXED CONTACT MEANS AND BEING MOVABLE TO THE OTHER FIXED CONTACT MEANS UPON MOVEMENT OF SAID ACTUATOR MEANS, SAID MOVABLE CONTACT MEANS ON SAID ACTUATOR MEMBER COOPERABLE WITH PIVOT MEANS ON SAID ACTUATOR MEANS AND MOUNTING THE MOVABLE CONTACT AT THE OTHER END THEREOF, COMMON TERMINAL MEANS COMPRISING A FLEXIBLE MEMBER INCLUDING A FIRST PORTION INTEGRALLY JOINED TO AND ANGULARLY DISPOSED TO A SECOND PORTION ACROSS A RESILIENT HINGE SECTION TO PROVIDE SPRING LOADING CHARACTERISTICS THERETO, ONE OF SAID FIRST AND SECOND PORTIONS HAVING A FREE END FORMED WITH MEANS DISPOSED IN PIVOTAL OPPOSITION TO SAID CONTACT CARRYING MEANS ON SAID ACTUATOR MEANS, AND SPRING MEANS EXTENDING BETWEEN SAID CONTACT CARRYING MEANS, AND ONE OF SAID PORTIONS OF SAID COMMON TERMINAL MEANS, SAID RESILIENT HINGE SECTION BEING OF SUFFICIENT STRENGTH TO OVERCOME THE PIVOTAL MOVEMENT OF SAID CONTACT MEANS ON SAID ACTUATOR MEANS TO CAUSE MOVEMENT OF BOTH THE FLEXIBLE MEMBER AND SAID MOVABLE CONTACT MEANS ABOUT SAID RESILIENT HINGE SECTION TO PROVIDE A RELATIVELY SMALL MOVEMENT DIFFERENTIAL OF SAID ACTUATOR MEANS PRIOR TO SNAP ACTION MOVEMENT OF SAID MOVABLE CONTACT MEANS BETWEEN SAID FIRST AND SECOND FIXED CONTACTS WHILE ALSO CONTRIBUTING TO THE RESILIENT ACTION OF SAID BIASING MEANS.
Claim 2
Dependent Claim 249 words
A SNAP SWITCH MECHANISM COMPRISING, ACTUATOR MEANS FORE RECIPROCAL MOVEMENT BETWEEN FIRST AND SECOND POSITIONS MEANS BIASING SAID ACTUATOR MEANS TO ITS FIRST POSITION, PIVOT MEANS LOCATED ON SAID ACTUATOR MEANS, FIRST AND SECOND FIXED CONTACT MEANS DISPOSED IN SPACED RELATIONSHIP, MOVABLE CONTACT MEANS NORMALLY ENGAGING ONE OF SAID FIXED CONTACT MEANS AND BEING MOVABLE TO THE OTHER FIXED CONTACT MEANS UPON MOVEMENT OF SAID ACTUATOR MEANS, SAID MOVABLE CONTACT MEANS ON SAID ACTUATOR MEMBER COOPERABLE WITH PIVOT MEANS ON SAID ACTUATOR MEANS AND MOUNTING THE MOVABLE CONTACT AT THE OTHER END THEREOF, COMMON TERMINAL MEANS COMPRISING A FLEXIBLE MEMBER INCLUDING A FIRST PORTION INTEGRALLY JOINED TO AND ANGULARLY DISPOSED TO A SECOND PORTION ACROSS A RESILIENT HINGE SECTION TO PROVIDE SPRING LOADING CHARACTERISTICS THERETO, ONE OF SAID FIRST AND SECOND PORTIONS HAVING A FREE END FORMED WITH MEANS DISPOSED IN PIVOTAL OPPOSITION TO SAID CONTACT CARRYING MEANS ON SAID ACTUATOR MEANS, AND SPRING MEANS EXTENDING BETWEEN SAID CONTACT CARRYING MEANS, AND ONE OF SAID PORTIONS OF SAID COMMON TERMINAL MEANS, SAID RESILIENT HINGE SECTION BEING OF SUFFICIENT STRENGTH TO OVERCOME THE PIVOTAL MOVEMENT OF SAID CONTACT MEANS ON SAID ACTUATOR MEANS TO CAUSE MOVEMENT OF BOTH THE FLEXIBLE MEMBER AND SAID MOVABLE CONTACT MEANS ABOUT SAID RESILIENT HINGE SECTION TO PROVIDE A RELATIVELY SMALL MOVEMENT DIFFERENTIAL OF SAID ACTUATOR MEANS PRIOR TO SNAP ACTION MOVEMENT OF SAID MOVABLE CONTACT MEANS BETWEEN SAID FIRST AND SECOND FIXED CONTACTS WHILE ALSO CONTRIBUTING TO THE RESILIENT ACTION OF SAID BIASING MEANS.

References Cited (Backward Citations)

DE587051C Cited
US2408873A Cited
US2840657A Cited
US3157771A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-08-08 1970-02-07 1970-08-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-08-08 1974-02-07 1974-08-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-08-08 1978-02-07 1978-08-09 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag