US3346715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control system for stud welding
Assignee: Individual
•
Filing: 1963-06-06
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Granted: 1967-10-10
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Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Henry H Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:18
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/20; B23K9/201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
WELDING APPARATUS INCLUDING IN COMBINATION, A CORE, A SINGLE COIL UPON ENERGIZATION THEREOF MOVING SAID CORE IN A FIRST DIRECTION, MEANS URGING SAID CORE IN A SECOND DIRECTION, A CHUCK CARRIED BY SAID CORE, FIRST ELECTRICAL CIRCUIT MEANS INCLUDING A FIRST SWITCH AND SAID SINGLE COIL CONNECTED ACROSS A POWER SOURCE FOR ACTUATING SAID CORE, SECOND ELECTRICAL CIRCUIT MEANS INCLUDING A MAIN WELDING CONTACTOR AND SAID CHUCK ADAPTED TO CARRY A METAL MEMBER RELATIVE TO A WORKPIECE CONNECTABLE ACROSS SAID POWER SOURCE DEPENDING UPON THE CONDITION OF SAID SINGLE COIL, THIRD ELECTRICAL CIRCUIT MEANS CONNECTED AT ONE
Claim 2
Dependent Claim
97 words
WELDING APPARATUS INCLUDING IN COMBINATION, A CORE, A SINGLE COIL UPON ENERGIZATION THEREOF MOVING SAID CORE IN A FIRST DIRECTION, MEANS URGING SAID CORE IN A SECOND DIRECTION, A CHUCK CARRIED BY SAID CORE, FIRST ELECTRICAL CIRCUIT MEANS INCLUDING A FIRST SWITCH AND SAID SINGLE COIL CONNECTED ACROSS A POWER SOURCE FOR ACTUATING SAID CORE, SECOND ELECTRICAL CIRCUIT MEANS INCLUDING A MAIN WELDING CONTACTOR AND SAID CHUCK ADAPTED TO CARRY A METAL MEMBER RELATIVE TO A WORKPIECE CONNECTABLE ACROSS SAID POWER SOURCE DEPENDING UPON THE CONDITION OF SAID SINGLE COIL, THIRD ELECTRICAL CIRCUIT MEANS CONNECTED AT ONE
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |