US3174091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld energy control device
Assignee: Raytheon Co
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Filing: 1962-08-16
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Granted: 1965-03-16
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Expires: 1982-08-16
Abstract
No abstract record available.
Inventors
- 👤 Felix L Ferranto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:52
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN COMBINATION WITH AN ELECTRIC RESISTANCE WELDING SYSTEM INCLUDING A CAPACITOR, A CHARGING CIRCUIT THEREFOR AND A LOAD CIRCUIT ADAPTED TO BE ENERGIZED BY SAID CAPACITOR, A CIRCUIT TO CONTROL THE OPERATION OF SAID CHARGING CIRCUIT COMPRISING: A PLURALITY OF CONTROL MEANS EACH SEPARATELY COUPLED TO SAID CHARGING CIRCUIT TO CONTROL THE CHARGING OF SAID CAPACITOR TO PROVIDE A PLURALITY OF RANDOM SELECTABLE PRECALIBRATED CHARGE LEVELS FOR SAID CAPACITOR; AND A SEQUENCE OPERATING SWITCH COUPLED TO EACH OF SAID CONTROL MEANS TO ACTUATE SAID MEANS AS ONE STEP IN A SEQUENCE OF OPERATIONS.
Claim 2
Dependent Claim
93 words
IN COMBINATION WITH AN ELECTRIC RESISTANCE WELDING SYSTEM INCLUDING A CAPACITOR, A CHARGING CIRCUIT THEREFOR AND A LOAD CIRCUIT ADAPTED TO BE ENERGIZED BY SAID CAPACITOR, A CIRCUIT TO CONTROL THE OPERATION OF SAID CHARGING CIRCUIT COMPRISING: A PLURALITY OF CONTROL MEANS EACH SEPARATELY COUPLED TO SAID CHARGING CIRCUIT TO CONTROL THE CHARGING OF SAID CAPACITOR TO PROVIDE A PLURALITY OF RANDOM SELECTABLE PRECALIBRATED CHARGE LEVELS FOR SAID CAPACITOR; AND A SEQUENCE OPERATING SWITCH COUPLED TO EACH OF SAID CONTROL MEANS TO ACTUATE SAID MEANS AS ONE STEP IN A SEQUENCE OF OPERATIONS.
References Cited (Backward Citations)
US3108178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |