Patent US1363267A successfully refreshed from Google Patents.
US3087030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically controlled commutator devices
Assignee: Unisys Corp
•
Filing: 1960-06-03
•
Granted: 1963-04-23
•
Expires: 1980-06-03
Abstract
No abstract record available.
Inventors
- 👤 Michael S Shebanow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:09
CPC Classifications
H; H01; H01H; H01H63/00; H01H63/36; H01H63/38; H01H36/00; H01H36/0006; H01H36/0053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A COMMUTATOR DEVICE OF THE CHARACTER DESCRIBED COMPRISING ELECTRICAL SWITCHING MEANS INCLUDING A PAIR OF ELONGATE RESILIENT CONTACTS MOUNTED IN PARALLEL RELATION TO EACH OTHER WITH THE CONTACT SURFACES THEREOF SPACED APART TO FORM A CONTACT GAP, SAID SWITCHING MEANS DEFINING A PATH OF RELUCTANCE AND BEING OPERABLE UNDER THE INFLUENCE OF A MAGNETIC FIELD TO CLOSE SAID CONTACT GAP, PERMANENTLY MAGNETIZED MEANS HAVING ITS MAGNETIC AXIS DISPOSED SUBSTANTIALLY IN ALIGNMENT WITH SAID PATH OF RELUCTANCE TO PROVIDE A MAGNETIC FIELD DIRECTLY EMBRACING SAID SWITCHING MEANS AND EXTENDING IN A DIRECTION TO OP-
Claim 2
Dependent Claim
93 words
A COMMUTATOR DEVICE OF THE CHARACTER DESCRIBED COMPRISING ELECTRICAL SWITCHING MEANS INCLUDING A PAIR OF ELONGATE RESILIENT CONTACTS MOUNTED IN PARALLEL RELATION TO EACH OTHER WITH THE CONTACT SURFACES THEREOF SPACED APART TO FORM A CONTACT GAP, SAID SWITCHING MEANS DEFINING A PATH OF RELUCTANCE AND BEING OPERABLE UNDER THE INFLUENCE OF A MAGNETIC FIELD TO CLOSE SAID CONTACT GAP, PERMANENTLY MAGNETIZED MEANS HAVING ITS MAGNETIC AXIS DISPOSED SUBSTANTIALLY IN ALIGNMENT WITH SAID PATH OF RELUCTANCE TO PROVIDE A MAGNETIC FIELD DIRECTLY EMBRACING SAID SWITCHING MEANS AND EXTENDING IN A DIRECTION TO OP-
References Cited (Backward Citations)
US593230A
Cited
GB538409A
Cited
US2180701A
Cited
US2187369A
Cited
US2332338A
Cited
US2983792A
Cited
US2922994A
Cited
US2945931A
Cited
US2932699A
Cited
US2872597A
Cited
DE1068813B
Cited
US2999914A
Cited
US3013137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |