US3201683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator
Assignee: Electro-Seal Corp
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Filing: 1962-04-23
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Granted: 1965-08-17
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Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Hans U Hjermstad
- 👤 Schumacher Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:27
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/24; G05F1/26; G05F1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A VOLTAGE REGULATOR FOR MAINTAINING A PREDETERMINED OUTPUT VOLTAGE TO A LOAD FROM A VARIBLE VOLTAGE ALTERNAING CURRENT SOURCE COMPRISING: A TRANSFORMER INCLUDING A PRIMARY WINDING AND A SECONDARY WINDING; MEANS CONNECTING SAID SECONDARY WINDING IN A SERIES LOOP WIT SAID LOAD AND SAID ALTERNATING CURRENT SOURCE; MEANS CONNECTING SAID PRIMARY WINDING IN PARALLEL ACROSS SAID SECONDARY WINDING AND SAID LOAD; FIRST GATE MENS FOR BYPASSING SAID PRIMARY WINDING; SECOND GATE MEANS FOR CAUSING CONDUCTION THROUGH SAID PRIMARY WINDING; FIRST SWITCH MEANS OPERATIVE DURING THE FIRST HALF OF EACH HALF CYCLE OF THE ALTERNATING CURRENT VOLTAGE FOR CLOSING SAID FIRST GATE MEANS AND BYPASSING SAID PRIMARY WINDING; VOLTAGE SENSOR MEANS RESPONSIVE TO THE OUTPUT VOLTAGE BEING LESS THAN SAID PREDETERMINED VOLTAGE FOR PROVIDING A CORRESPONDING CONTROL SIGNAL; AND SECOND SWITCH MEANS SELECTIVELY OPERATED
Claim 2
Dependent Claim
133 words
A VOLTAGE REGULATOR FOR MAINTAINING A PREDETERMINED OUTPUT VOLTAGE TO A LOAD FROM A VARIBLE VOLTAGE ALTERNAING CURRENT SOURCE COMPRISING: A TRANSFORMER INCLUDING A PRIMARY WINDING AND A SECONDARY WINDING; MEANS CONNECTING SAID SECONDARY WINDING IN A SERIES LOOP WIT SAID LOAD AND SAID ALTERNATING CURRENT SOURCE; MEANS CONNECTING SAID PRIMARY WINDING IN PARALLEL ACROSS SAID SECONDARY WINDING AND SAID LOAD; FIRST GATE MENS FOR BYPASSING SAID PRIMARY WINDING; SECOND GATE MEANS FOR CAUSING CONDUCTION THROUGH SAID PRIMARY WINDING; FIRST SWITCH MEANS OPERATIVE DURING THE FIRST HALF OF EACH HALF CYCLE OF THE ALTERNATING CURRENT VOLTAGE FOR CLOSING SAID FIRST GATE MEANS AND BYPASSING SAID PRIMARY WINDING; VOLTAGE SENSOR MEANS RESPONSIVE TO THE OUTPUT VOLTAGE BEING LESS THAN SAID PREDETERMINED VOLTAGE FOR PROVIDING A CORRESPONDING CONTROL SIGNAL; AND SECOND SWITCH MEANS SELECTIVELY OPERATED
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |