US3299250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding system
Assignee: Sciaky Brothers Inc
•
Filing: 1965-09-17
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Granted: 1967-01-17
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Vilkas
- 👤 Richard W Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:50
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/095; B23K9/0956; B23K9/06; B23K9/073; B23K9/0732
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN WELDING APPARATUS OF THE TYPE IN WHICH A WELDING ELECTRODE IS POSITIONED TO STRIKE AN ARC WITH A WORK PIECE TO HEAT THE SAME TO PRODUCE A WELD, A SYSTEM FOR CONTROLLING THE PENETRATION OF THE WELD INCLUDING IN COMBINATION, WELDING CURRENT SUPPLY MEANS CONNECTED TO THE WELDING ELECTRODE AND THE WORK PIECE FOR PROVIDING CONTROLLED CURRENT THROUGH THE WELDING ARC, RADIATION SENSITIVE MEANS RESPONSIVE TO THE RADIATION EMITTED BY THE HEATED MATERIAL OF THE WORK PIECE, SAID RADIATION SENSITIVE MEANS INCLUDING A RADIATION SENSITIVE DEVICE POSITIONED TO RECEIVE RADIATION FROM THE HEATED MATERIAL AND PROVIDE AN INDICATION THEREOF, CURRENT MEANS COUPLED TO SAID RADIATION SENSITIVE DEVICE FOR PRODUCING A CONTROL VOLTAGE WHICH VARIES WITH SAID RADIATION INDICATION, SAID CIRCUIT MEANS INCLUDING A CIRCUIT PORTION RESPONSIVE TO RAPID CHANGES IN THE CONTROL VOLTAGE TO REDUCE THE EFFECT THEREOF IN THE OUTPUT SIGNAL OF SAID CIRCUIT MEANS, AND CONTROL MEANS CONNECTED TO SAID CIRCUIT MEANS AND TO SAID WELDING CURRENT SUPPLY MEANS AND RESPONSIVE TO SAID OUTPUT SIGNAL FOR CONTROLLING THE CURRENT SUPPLIED TO THE ARC BY THE WELDING CURRENT SUPPLY MEANS.
Claim 2
Dependent Claim
182 words
IN WELDING APPARATUS OF THE TYPE IN WHICH A WELDING ELECTRODE IS POSITIONED TO STRIKE AN ARC WITH A WORK PIECE TO HEAT THE SAME TO PRODUCE A WELD, A SYSTEM FOR CONTROLLING THE PENETRATION OF THE WELD INCLUDING IN COMBINATION, WELDING CURRENT SUPPLY MEANS CONNECTED TO THE WELDING ELECTRODE AND THE WORK PIECE FOR PROVIDING CONTROLLED CURRENT THROUGH THE WELDING ARC, RADIATION SENSITIVE MEANS RESPONSIVE TO THE RADIATION EMITTED BY THE HEATED MATERIAL OF THE WORK PIECE, SAID RADIATION SENSITIVE MEANS INCLUDING A RADIATION SENSITIVE DEVICE POSITIONED TO RECEIVE RADIATION FROM THE HEATED MATERIAL AND PROVIDE AN INDICATION THEREOF, CURRENT MEANS COUPLED TO SAID RADIATION SENSITIVE DEVICE FOR PRODUCING A CONTROL VOLTAGE WHICH VARIES WITH SAID RADIATION INDICATION, SAID CIRCUIT MEANS INCLUDING A CIRCUIT PORTION RESPONSIVE TO RAPID CHANGES IN THE CONTROL VOLTAGE TO REDUCE THE EFFECT THEREOF IN THE OUTPUT SIGNAL OF SAID CIRCUIT MEANS, AND CONTROL MEANS CONNECTED TO SAID CIRCUIT MEANS AND TO SAID WELDING CURRENT SUPPLY MEANS AND RESPONSIVE TO SAID OUTPUT SIGNAL FOR CONTROLLING THE CURRENT SUPPLIED TO THE ARC BY THE WELDING CURRENT SUPPLY MEANS.
References Cited (Backward Citations)
US2089014A
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US2031288A
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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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |