Patent US3158715A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3158715A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric switch incorporating an automatic circuit breaker

Assignee: Mechanical Products Inc
•
Filing: 1961-01-18
•
Granted: 1964-11-24
•
Expires: 1981-01-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Richard C Ingwersen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 15:20
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/46; H01H71/48; H01H71/14; H01H71/18; H01H73/00; H01H73/22; H01H73/30; H01H73/306

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 141 words
AN ELECTRICAL CIRCUIT BREAKER COMPRISING A PAIR OF TERMINALS, A FIXED MAIN CONTACT ELECTRICALLY CONNECTED TO ONE OF SAID TERMINALS, A MOVABLE MAIN CONTACT ENGAGEABLE WITH SAID FIXED CONTACT, A RELEASABLE OPERATING MECHANISM FOR EFFECTING SEPARATION OF THE MAIN CONTACTS, CURRENT RESPONSIVE MEANS ELECTRICALLY CONNECTED TO SAID MOVABLE CONTACT AND TO THE OTHER ONE OF SAID TERMINALS OPERABLE UPON THE OCCURRENCE OF A PREDETERMINED ELECTRICAL CONDITION TO EFFECT RELEASE OF THE OPERATING MECHANISM, A PAIR OF SEPARABLE SHUNT CONTACTS, ONE OF SAID SHUNT CONTACTS BEING ELECTRICALLY CONNECTED TO SAID MOVEABLE CONTACT, THE OTHER OF SAID SHUNT CONTACTS BEING CONNECTED TO THE OTHER ONE OF SAID TERMINALS, AND MEANS ON THE OPERATING MECHANISM FOR CLOSING SAID SHUNT CONTACTS UPON SEPARATION OF SAID MAIN CONTACTS TO PROVIDE A CONDUCTIVE PATH BETWEEN SAID MOVABLE CONTACT AND SAID OTHER TERMINAL SHUNTING SAID CURRENT RESPONSIVE MEANS.

References Cited (Backward Citations)

US1966444A Cited
US2418537A Cited
US2625624A Cited
US2798919A Cited
US2989605A Cited
US2989606A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-11-24 1968-05-25 1968-11-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-11-24 1972-05-25 1972-11-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-11-24 1976-05-25 1976-11-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag