Patent US3177332A successfully refreshed from Google Patents.
US3177332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage circuit breakers with contact pressure boosters and arcing contacts
Assignee: McGraw Edison Co
•
Filing: 1962-06-11
•
Granted: 1965-04-06
•
Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Bethke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:26
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; H01H9/38; H01H9/386; H01H1/00; H01H1/12; H01H1/14; H01H1/24; H01R; H01R35/00; H01R35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
A PAIR OF CONTACT ASSEMBLIES MOUNTED FOR MOVEMENT INTO AND OUT OF A CLOSED POSITION, ONE OF SAID CONTACT ASSEMBLIES HAVING A MAIN CURRENT CARRYING CONTACT AND AN AUXILIARY ARCING CONTACT, THE OTHER OF SAID CONTACT ASSEMBLIES INCLUDING A BASE MEMBER AND A CONTACT MEMBER, A FIRST APERTURE FORMED IN EACH OF SAID MEMBERS, A FIRST PIN MEANS EXTENDING THROUGH EACH OF SID APERTURES AND BEING LOOSELY RECEIVED IN AT LEAST ONE OF THEM TO MOUNT SAID CONTACT MEMBER ON SAID BASE MEMBER FOR LIMITED TRANSLATIONAL AND PIVOTAL MOVEMENT TOWARD SAID OTHER ASSEMBLY, A SECOND APERTURE FORMED IN EACH OF SAID MEMBERS AND A SECOND PIN MEANS EXTENDING THROUGH SAID SECOND APERTURES AND BEING LOOSELY RECEIVED IN AT LEAST ONE OF THEM FOR LIMITING THE PIVOTAL MOVEMENT OF SAID CONTACT MEMBER, A MAIN CURRENT CARRYING CONTACT MOUNTED ON SAID CONTACT MEMBER AND BEING DISPOSED ADJACENT ITS PIVOTAL AXIS AND AN AUXILIARY CONTACT MOUNTED THEREON AND BEING REMOTELY DISPOSED FROM SAID AXIS, A FIRST SPRING MEANS OPERATIVELY ENGAGING SAID CONTACT MEMBER AT A POINT ADJACENT SAID PIVOTAL AXIS AND A SECOND SPRING MEANS OPERATIVELY ENGAGING SAID MEMBER AT A POINT REMOTE FROM SAID AXIS, SAID SPRING MEANS URGING THE MAIN CURRENT CARRYING AND AUXILIARY CONTACTS INTO HIGH PRESSURE ENGAGEMENT WHEN SAID ASSEMBLIES ARE IN A CLOSED POSITION WITH SAID PINS
Claim 2
Dependent Claim
219 words
A PAIR OF CONTACT ASSEMBLIES MOUNTED FOR MOVEMENT INTO AND OUT OF A CLOSED POSITION, ONE OF SAID CONTACT ASSEMBLIES HAVING A MAIN CURRENT CARRYING CONTACT AND AN AUXILIARY ARCING CONTACT, THE OTHER OF SAID CONTACT ASSEMBLIES INCLUDING A BASE MEMBER AND A CONTACT MEMBER, A FIRST APERTURE FORMED IN EACH OF SAID MEMBERS, A FIRST PIN MEANS EXTENDING THROUGH EACH OF SID APERTURES AND BEING LOOSELY RECEIVED IN AT LEAST ONE OF THEM TO MOUNT SAID CONTACT MEMBER ON SAID BASE MEMBER FOR LIMITED TRANSLATIONAL AND PIVOTAL MOVEMENT TOWARD SAID OTHER ASSEMBLY, A SECOND APERTURE FORMED IN EACH OF SAID MEMBERS AND A SECOND PIN MEANS EXTENDING THROUGH SAID SECOND APERTURES AND BEING LOOSELY RECEIVED IN AT LEAST ONE OF THEM FOR LIMITING THE PIVOTAL MOVEMENT OF SAID CONTACT MEMBER, A MAIN CURRENT CARRYING CONTACT MOUNTED ON SAID CONTACT MEMBER AND BEING DISPOSED ADJACENT ITS PIVOTAL AXIS AND AN AUXILIARY CONTACT MOUNTED THEREON AND BEING REMOTELY DISPOSED FROM SAID AXIS, A FIRST SPRING MEANS OPERATIVELY ENGAGING SAID CONTACT MEMBER AT A POINT ADJACENT SAID PIVOTAL AXIS AND A SECOND SPRING MEANS OPERATIVELY ENGAGING SAID MEMBER AT A POINT REMOTE FROM SAID AXIS, SAID SPRING MEANS URGING THE MAIN CURRENT CARRYING AND AUXILIARY CONTACTS INTO HIGH PRESSURE ENGAGEMENT WHEN SAID ASSEMBLIES ARE IN A CLOSED POSITION WITH SAID PINS
References Cited (Backward Citations)
US2717292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |