US3133187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch starting of power arcs
Assignee: Airco Inc
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Filing: 1962-02-27
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Granted: 1964-05-12
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Expires: 1982-02-27
Abstract
No abstract record available.
Inventors
- 👤 Nelson E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:35
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/067; B23K9/0671; B23K9/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
ELECTRIC ARC APPARATUS COMPRISING A SOURCE OF ARC CURRENT IN CIRCUIT WITH AN ELECTRODE AND A WORKPIECE, MEANS FOR ADVANCING SAID ELECTRODE INTO CONTACT WITH SAID WORKPIECE TO INITIATE A FLOW OF CURRENT IN SAID CIRCUIT, A CAPACITOR, MEANS FOR CHANGING SAID CAPACITOR, SOLENOID OPERATED MEANS WHICH WHEN ACTUATED WITHDRAWS SAID ELECTRODE A PREDETERMINED DISTANCE FORM SAID WORKPIECE TO THEREBY ESTABLISH AN ARC, AND MEANS FOR CAUSING SAID CAPACITOR TO DISCHARGE THROUGH THE WINDING OF SAID SOLENOID IMMEDIATELY UPON CONTACT OF SAID ELECTRODE AND SAID WORKPIECE TO THEREBY ACTUATE SAID SOLENOID OPERATED MEANS AND ESTABLISHED SAID ARC.
Claim 2
Dependent Claim
97 words
ELECTRIC ARC APPARATUS COMPRISING A SOURCE OF ARC CURRENT IN CIRCUIT WITH AN ELECTRODE AND A WORKPIECE, MEANS FOR ADVANCING SAID ELECTRODE INTO CONTACT WITH SAID WORKPIECE TO INITIATE A FLOW OF CURRENT IN SAID CIRCUIT, A CAPACITOR, MEANS FOR CHANGING SAID CAPACITOR, SOLENOID OPERATED MEANS WHICH WHEN ACTUATED WITHDRAWS SAID ELECTRODE A PREDETERMINED DISTANCE FORM SAID WORKPIECE TO THEREBY ESTABLISH AN ARC, AND MEANS FOR CAUSING SAID CAPACITOR TO DISCHARGE THROUGH THE WINDING OF SAID SOLENOID IMMEDIATELY UPON CONTACT OF SAID ELECTRODE AND SAID WORKPIECE TO THEREBY ACTUATE SAID SOLENOID OPERATED MEANS AND ESTABLISHED SAID ARC.
References Cited (Backward Citations)
US1392436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |