US3329881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power and control means for electrical appliances
Assignee: Unisys Corp
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Filing: 1964-07-27
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Granted: 1967-07-04
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Tolmie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:22
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/28; B26B19/286; H; H01; H01R; H01R29/00; H02; H02J; H02J4/00; H02J4/20; H02J4/25; H02J7/00; H02J7/02; Y; Y10; Y10S; Y10S30/00; Y10S30/01; Y10S320/00; Y10S320/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
A PORTABLE ELECTRICAL APPLIANCE COMPRISING, IN A FIRST CASING, POWER CONSUMING LOAD UNIT, AND IN A SECOND CASING, A POWER PACK FOR SUPPLYING POWER TO SAID POWER CONSUMING UNIT; WHEREIN THERE IS PROVIDED IN SAID LOAD UNIT CASING: AN OPERATING DEVICE, A REPLENISHABLE UNIDIRECTIONAL POWER SUPPLY FOR SUPPLYING POWER TO SAID OPERATING DEVICE, POWER CONVERTING MEANS ADAPTED FOR CONNECTION TO AN EXTERNAL SOURCE OF ALTERNATING POWER FOR CONVERTING SAID ALTERNATING POWER TO UNIDIRECTIONAL POWER OF A CHARACTER FOR REPLENISHING SAID UNIDIRECTIONAL POWER SUPPLY, A BYPASS CIRCUIT FOR ELECTRICALLY BYPASSING SAID POWER CONVERTING MEANS AND SAID REPLENISHABLE POWER SUPPLY, AND A MANUAL SWITCH HAVING A NORMALLY OPEN POSITION AND OPERABLE TO A PAIR OF SPACED CLOSED POSITIONS; SAID SWITCH IN SAID NORMALLY OPEN POSITION PREPARING A CIRCUIT FOR REPLENISHMENT OF SAID UNDIRECTIONAL POWER SUPPLY BY SAID POWER CONVERTING MEANS, SAID SWITCH IN THE FIRST CLOSED POSITION ADAPTED TO CONNECT SAID OPERATING DEVICE TO SAID REPLENISHABLE POWER SUPPLY FOR ENERGIZATION, AND IN THE SECOND CLOSED POSITION TO CLOSE SAID BYPASS CIRCUIT; AND WHEREIN SAID POWER PACK INCLUDES MEANS FOR CONVERTING ALTERNATING POWER TO UNIDIRECTIONAL POWER OF A CHARACTER FOR ENERGIZING SAID OPERATING DEVICE OF SAID LOAD UNIT, SAID POWER PACK BEING PROVIDED WITH MEANS FOR CONNECTING THE INPUT OF ITS POWER CONVERTING MEANS TO AN EXTERNAL SOURCE OF ALTERNATING POWER; AND
Claim 2
Dependent Claim
219 words
A PORTABLE ELECTRICAL APPLIANCE COMPRISING, IN A FIRST CASING, POWER CONSUMING LOAD UNIT, AND IN A SECOND CASING, A POWER PACK FOR SUPPLYING POWER TO SAID POWER CONSUMING UNIT; WHEREIN THERE IS PROVIDED IN SAID LOAD UNIT CASING: AN OPERATING DEVICE, A REPLENISHABLE UNIDIRECTIONAL POWER SUPPLY FOR SUPPLYING POWER TO SAID OPERATING DEVICE, POWER CONVERTING MEANS ADAPTED FOR CONNECTION TO AN EXTERNAL SOURCE OF ALTERNATING POWER FOR CONVERTING SAID ALTERNATING POWER TO UNIDIRECTIONAL POWER OF A CHARACTER FOR REPLENISHING SAID UNIDIRECTIONAL POWER SUPPLY, A BYPASS CIRCUIT FOR ELECTRICALLY BYPASSING SAID POWER CONVERTING MEANS AND SAID REPLENISHABLE POWER SUPPLY, AND A MANUAL SWITCH HAVING A NORMALLY OPEN POSITION AND OPERABLE TO A PAIR OF SPACED CLOSED POSITIONS; SAID SWITCH IN SAID NORMALLY OPEN POSITION PREPARING A CIRCUIT FOR REPLENISHMENT OF SAID UNDIRECTIONAL POWER SUPPLY BY SAID POWER CONVERTING MEANS, SAID SWITCH IN THE FIRST CLOSED POSITION ADAPTED TO CONNECT SAID OPERATING DEVICE TO SAID REPLENISHABLE POWER SUPPLY FOR ENERGIZATION, AND IN THE SECOND CLOSED POSITION TO CLOSE SAID BYPASS CIRCUIT; AND WHEREIN SAID POWER PACK INCLUDES MEANS FOR CONVERTING ALTERNATING POWER TO UNIDIRECTIONAL POWER OF A CHARACTER FOR ENERGIZING SAID OPERATING DEVICE OF SAID LOAD UNIT, SAID POWER PACK BEING PROVIDED WITH MEANS FOR CONNECTING THE INPUT OF ITS POWER CONVERTING MEANS TO AN EXTERNAL SOURCE OF ALTERNATING POWER; AND
References Cited (Backward Citations)
US3027507A
Cited
US3089071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |