US3309494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding apparatus
Assignee: North American Aviation Corp
•
Filing: 1963-06-12
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Granted: 1967-03-14
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Roy J Hebert
- 👤 Sam J Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:01
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02; B23K3/03; B23K11/00; B23K11/24; B23K11/25; B23K3/0307; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/20; G05D23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A RESISTANCE SOLDERING APPARATUS FOR SOLDERING A WORKPIECE, SAID APPARATUS COMPRISING: A SHEATHED-THERMOCOUPLE FIRST ELECTRODE COMPRISING A HOLLOW SHEATH OF A NON-SOLDERABLE MATERIAL COMPRISING ONE OF STAINLESS STEEL OR INCONEL, SAID SHEATH BEING CLOSED AT ONE END, A THERMOCOUPLE HOUSED WITHIN SAID SHEATH, SAID THERMOCOUPLE BEING CONNECTED TO SAID CLOSED END, SAID THERMOCOUPLE OTHERWISE BEING ELECTRICALLY INSULATINGLY SEPARATED FROM SAID SHEATH, A SECOND ELECTRODE, SAID FIRST AND SECOND ELECTRODES BEING JUXTAPOSED AND TERMINATING ON THE SAME SIDE OF THE WORKPIECE; AND CONTROL MEANS FOR CONTROLLING THE HEATING CURRENT APPLIED ACROSS SAID ELECTRODES IN A MANNER DEPENDENT ON THE TEMPERATURE OF SAID WORKPIECE AS SENSED BY SAID THERMOCOUPLE, SAID CONTROL MEANS COMPRISING MEANS TO REGULATE SAID HEATING CURRENT TO ACHIEVE CONTROLLED COOLING OF SAID WORKPIECE.
Claim 2
Dependent Claim
124 words
A RESISTANCE SOLDERING APPARATUS FOR SOLDERING A WORKPIECE, SAID APPARATUS COMPRISING: A SHEATHED-THERMOCOUPLE FIRST ELECTRODE COMPRISING A HOLLOW SHEATH OF A NON-SOLDERABLE MATERIAL COMPRISING ONE OF STAINLESS STEEL OR INCONEL, SAID SHEATH BEING CLOSED AT ONE END, A THERMOCOUPLE HOUSED WITHIN SAID SHEATH, SAID THERMOCOUPLE BEING CONNECTED TO SAID CLOSED END, SAID THERMOCOUPLE OTHERWISE BEING ELECTRICALLY INSULATINGLY SEPARATED FROM SAID SHEATH, A SECOND ELECTRODE, SAID FIRST AND SECOND ELECTRODES BEING JUXTAPOSED AND TERMINATING ON THE SAME SIDE OF THE WORKPIECE; AND CONTROL MEANS FOR CONTROLLING THE HEATING CURRENT APPLIED ACROSS SAID ELECTRODES IN A MANNER DEPENDENT ON THE TEMPERATURE OF SAID WORKPIECE AS SENSED BY SAID THERMOCOUPLE, SAID CONTROL MEANS COMPRISING MEANS TO REGULATE SAID HEATING CURRENT TO ACHIEVE CONTROLLED COOLING OF SAID WORKPIECE.
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |