US3209230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery charger
Assignee: Dynamic Instrument Corp
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Filing: 1962-09-19
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Granted: 1965-09-28
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Expires: 1982-09-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Mas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:20
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/46; H02; H02J; H02J7/00; H02J7/485; H02J7/70; H02J7/751; H02J7/90; H02J7/92; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/21; Y10S320/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
215 words
A BATTERY CHARGER COMPRISING AN ELONGATED HOUSING HAVING AT LEAST TWO BATTERY RECEIVING COMPARTMENTS AND A CHARGING CIRCUIT COMPARTMENT, A COVER HINGED TO SAID HOUSING AND OVERLYING SAID BATTERY RECEIVING COMPARTMENTS, A COMPARTMENT CLOSURE CLOSING THE CHARGING CIRCUIT COMPARTMENT, A WINDOW IN SAID CLOSURE, AT LEAST TWO PAIRS OF SPACED TERMINALS IN EACH BATTERY COMPARTMENT, EACH PAIR OF SPACED TERMINALS INCLUDING A SPRING BIASED IN THE DIRECTION OF THE OTHER TERMINAL OF THE PAIR, CONNECTIONS BETWEEN SAID PAIRS OF TERMINALS TO FROM A SERIES STRING, INDIVIDUAL MEANS ASSOCIATED WITH EACH PAIR OF CONTACTS IN ONE BATTERY COMPARTMENT AND ONE PAIR OF CONTACTS IN THE OTHER BATTERY COMPARTMENT TO NORMALLY SHORT CIRCUIT THE PAIRS OF CONTACTS ONE TO THE OTHER, SAID INDIVIDUAL MEANS BEING RENDERED INOPERATIVE UPON INSERTION OF BATTERY BETWEEN THE CONTACTS, A CABLE EXTENDING FROM THE CHARGER FOR THE SUPPLY OF ENERGY, A CHARGING CIRCUIT INCLUDING A SERIES CONNECTED LAMP AND RECTIFIER CONNECTED TO SAID CABLE AND TO SAID PAIRS OF SPACED TERMINALS FOR SERIES CHARGING OF BATTERIES IN SAID COMPARTMENTS SAID LAMP BEING POSITIONED ADJOINING SAID WINDOW TO INDICATE OPERATION OF SAID CHARGER AND THE STATE OF CHARGE OF SAID BATTERIES AND SAID COVER AND HOUSING HAVING AN ELECTRIC INTERLOCK TO DISCONNECT SAID CABLE FROM SAID CHARGING CIRCUIT WHEN THE COVER IS OPENED.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |