Patent US3111479A successfully refreshed from Google Patents.
US3111479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply for chromium plating
Assignee: GEN DEV CORP
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Filing: 1960-08-23
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Granted: 1963-11-19
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Expires: 1980-08-23
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Schaer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:28
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/18; C25D5/60; C25D5/605; C25D5/627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
APPARATUS FOR CONVERTING A THREE-PHASE VOLTAGE TO DIRECT CURRENT VOLTAGE FOR ELECTRODES IN AN ELECTROLYTIC PROCESS COMPRISING A FIRST THREE-PHASE TRANSFORMER HAVING ITS PRIMARY DELTA CONNECTED AND ITS SECONDARY WYE CONNECTED, A SECOND THREE-PHASE TRANSFORMER HAVING ITS PRIMARY WYE CONNECTED AND ITS SECONDARY WYE CONNECTED, ONE PHASE OF THE SECONDARY OF EACH TRANSFORMER HAVING ITS CONNECTINS REVERSED, EACH SAID SECONDARY HAVING A NEUTRAL TERMINAL AND TRHEE REMAINING TERMINALS, SAID NEUTRAL TERMINALS BEING CONNECTED TOGETHER FOR CONNECTION TO AN ELECTRODE, THE REMAINING TERMINALS OF SAID SECONDARIES BEING CONNECTED TOGETHER FOR CONNECTION TO THE OTHER ELECTRODE AND HALF-WAVE RECTIFIERS CONNECTED BETWEEN EACH REMAINING SECONDARY TERMINAL AND SAID OTHER ELECTRODE.
Claim 2
Dependent Claim
107 words
APPARATUS FOR CONVERTING A THREE-PHASE VOLTAGE TO DIRECT CURRENT VOLTAGE FOR ELECTRODES IN AN ELECTROLYTIC PROCESS COMPRISING A FIRST THREE-PHASE TRANSFORMER HAVING ITS PRIMARY DELTA CONNECTED AND ITS SECONDARY WYE CONNECTED, A SECOND THREE-PHASE TRANSFORMER HAVING ITS PRIMARY WYE CONNECTED AND ITS SECONDARY WYE CONNECTED, ONE PHASE OF THE SECONDARY OF EACH TRANSFORMER HAVING ITS CONNECTINS REVERSED, EACH SAID SECONDARY HAVING A NEUTRAL TERMINAL AND TRHEE REMAINING TERMINALS, SAID NEUTRAL TERMINALS BEING CONNECTED TOGETHER FOR CONNECTION TO AN ELECTRODE, THE REMAINING TERMINALS OF SAID SECONDARIES BEING CONNECTED TOGETHER FOR CONNECTION TO THE OTHER ELECTRODE AND HALF-WAVE RECTIFIERS CONNECTED BETWEEN EACH REMAINING SECONDARY TERMINAL AND SAID OTHER ELECTRODE.
References Cited (Backward Citations)
US2521522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |