US3215922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery charger
Assignee: Vapor Corp
•
Filing: 1962-05-31
•
Granted: 1965-11-02
•
Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Robert M Olsen
- 👤 Joseph A Christ
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:26
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/02; H02J7/04; H02J7/12; Y; Y10; Y10S; Y10S320/00; Y10S320/22; Y10S320/24; Y10S320/28; Y10S320/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A BATTERY CHARGER COMPRISING A VARIABLE VOLTAGE ALTERNATING CURRENT INPUT CIRCUIT, A DIRECT CURRENT OUTPUT CIRCUIT HAVING POSITIVE AND NEGATIVE BATTERY TERMINALS FOR CONNECTING A BATTERY THEREIN, MEANS FOR SUPPLYING RECTIFIED CURRENT FROM SAID ALTERNATING CURRENT INPUT CIRCUIT TO SAID DIRECT CURRENT OUTPUT CIRCUIT, ELECTRONIC NETWORK MEANS OPERABLE IN SAID DIRECT CURRENT OUTPUT CIRCUIT FOR COMPARING THE VOLTAGE OF THE BATTERY WITH A STANDARD VOLTAGE AND FOR OPENING AND CLOSING THE ALTERNATING CURRENT INPUT CIRCUIT BETWEEN FULL BATTERY CHARGE CONDITION AND A PREDETERMINED AMOUNT LESS THAN FULL BATTERY CHARGE CONDITION, AND MEANS FOR PRODUCING A STEADY DIRECT CURRENT OUTPUT FROM A VARYING ALTERNATING CURRENT INPUT, SAID PRODUCING MEANS INCLUDING A SATURABLE REACTOR HAVING LOAD WINDINGS IN SAID ALTERNATING CURRENT INPUT CIRCUIT AND A CONTROL WINDING IN SAID DIRECT CURRENT OUTPUT CIRCUIT.
Claim 2
Dependent Claim
131 words
A BATTERY CHARGER COMPRISING A VARIABLE VOLTAGE ALTERNATING CURRENT INPUT CIRCUIT, A DIRECT CURRENT OUTPUT CIRCUIT HAVING POSITIVE AND NEGATIVE BATTERY TERMINALS FOR CONNECTING A BATTERY THEREIN, MEANS FOR SUPPLYING RECTIFIED CURRENT FROM SAID ALTERNATING CURRENT INPUT CIRCUIT TO SAID DIRECT CURRENT OUTPUT CIRCUIT, ELECTRONIC NETWORK MEANS OPERABLE IN SAID DIRECT CURRENT OUTPUT CIRCUIT FOR COMPARING THE VOLTAGE OF THE BATTERY WITH A STANDARD VOLTAGE AND FOR OPENING AND CLOSING THE ALTERNATING CURRENT INPUT CIRCUIT BETWEEN FULL BATTERY CHARGE CONDITION AND A PREDETERMINED AMOUNT LESS THAN FULL BATTERY CHARGE CONDITION, AND MEANS FOR PRODUCING A STEADY DIRECT CURRENT OUTPUT FROM A VARYING ALTERNATING CURRENT INPUT, SAID PRODUCING MEANS INCLUDING A SATURABLE REACTOR HAVING LOAD WINDINGS IN SAID ALTERNATING CURRENT INPUT CIRCUIT AND A CONTROL WINDING IN SAID DIRECT CURRENT OUTPUT CIRCUIT.
References Cited (Backward Citations)
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US3107318A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |