Patent US3185877A successfully refreshed from Google Patents.
US3185877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current homopolar generator
Assignee: Individual
•
Filing: 1963-01-14
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Granted: 1965-05-25
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Expires: 1983-01-14
Abstract
No abstract record available.
Inventors
- 👤 Sears Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:33
CPC Classifications
H; H02; H02K; H02K31/00; H02K31/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
A HOMOPOLAR GENERATOR COMPRISING A ROTATABLE ROTOR, INCLUDING RADIALLY DISPOSED INDUCTOR MEANS AND MEANS ON OPPOSITE AXIAL SIDES OF SAID INDUCTOR MEANS ENERGIZABLE TO PRODUCE A MAGNETIC FIELD IN A DIRECTION AXIALLY THROUGH SAID INDUCTOR MEANS, A HOUSING IN WHICH SAID ROTOR ROTATES, MEANS TO ROTATE SAID ROTOR, MEANS ON SAID HOUSING TO ENERGIZE SAID ENERGIZABLE MEANS, SAID INDUCTOR MEANS INCLUDING AN ELECTRICALLY CONDUCTIVE ELEMENT WOUND WITH A PLURALITY OF TURNS IN A SPIRAL FORM, SAID INDUCTOR MEANS HAVING A PLURALITY OF CIRCULARLY SHAPED CONTACT SURFACES, ONE OF SAID CONTACT SURFACES BEING ON SAID INDUCTOR MEANS AT A GREATER OUTWARD RADIAL DISTANCE THAN ANOTHER OF SAID CONTACT SURFACES, AN ELECTRICAL CONTACT MEANS IN SAID HOUSING ENGAGING EACH ONE OF SAID CONTACT SURFACES, AND MEANS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |