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US3235704A
Expired / Lapsed
US
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Apparatus for joining materials
Assignee: North American Aviation Corp
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Filing: 1963-01-21
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Granted: 1966-02-15
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph G Rockwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:36
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
APPARATUS FOR JOINING AN ELECTRICALLY CONDUCTIVE SHEET TO A SECOND SHEET COMPRISING: AN ELECTRODE SUPPORT MEMBER, A FIRST ROD-LIKE ELECTRODE FIXEDLY-MOUNTED IN THE ELECTRODE SUPPORT MEMBER, SAID FIRST ELECTRODE HAVING A SUBSTANTIALLY CONSTANT DIAMETER AND HAVING A FLAT WORKING SURFACE AT THE END THEREOF, A SECOND ELECTRODE OF TUBULAR CONFIGURATION IN CONCENTRIC RELAIONSHIP WITH, AND SPECED FROM, THE FIRST ELECTRODE, THE SECOND ELECTRODE HAVING AN ENLARGED ANNULAR CIRCULAR FLANGE PORTION AT THE END THEREOF THAT IS REMOTELY SITUATED FROM THE ELECTRODE SUPPORT MEMBER, A FLAT ELECTRICALLY CONDUCTIVE MAT OF ANNULAR CONFIGURATION IN MATING CONTACT WITH THE LOWER SURFACE OF THE FLANGE PORTION OF THE SECOND ELECTRODE, AND MEANS FOR CONNECTING AN ELECTRIC CURRENT SOURCE TO THE FIRST AND SECOND ELECTRODES, AND MEANS FOR CAUSING SAID FLAT WORKING SURFACE OF SAID FIRST ELECTRODE AND SAID FLAT ANNULAR MAT TO BE COPLANAR AT THE SURFACE OF SAID ELECTRICALLY CONDUCTIVE SHEET.
Claim 2
Dependent Claim
148 words
APPARATUS FOR JOINING AN ELECTRICALLY CONDUCTIVE SHEET TO A SECOND SHEET COMPRISING: AN ELECTRODE SUPPORT MEMBER, A FIRST ROD-LIKE ELECTRODE FIXEDLY-MOUNTED IN THE ELECTRODE SUPPORT MEMBER, SAID FIRST ELECTRODE HAVING A SUBSTANTIALLY CONSTANT DIAMETER AND HAVING A FLAT WORKING SURFACE AT THE END THEREOF, A SECOND ELECTRODE OF TUBULAR CONFIGURATION IN CONCENTRIC RELAIONSHIP WITH, AND SPECED FROM, THE FIRST ELECTRODE, THE SECOND ELECTRODE HAVING AN ENLARGED ANNULAR CIRCULAR FLANGE PORTION AT THE END THEREOF THAT IS REMOTELY SITUATED FROM THE ELECTRODE SUPPORT MEMBER, A FLAT ELECTRICALLY CONDUCTIVE MAT OF ANNULAR CONFIGURATION IN MATING CONTACT WITH THE LOWER SURFACE OF THE FLANGE PORTION OF THE SECOND ELECTRODE, AND MEANS FOR CONNECTING AN ELECTRIC CURRENT SOURCE TO THE FIRST AND SECOND ELECTRODES, AND MEANS FOR CAUSING SAID FLAT WORKING SURFACE OF SAID FIRST ELECTRODE AND SAID FLAT ANNULAR MAT TO BE COPLANAR AT THE SURFACE OF SAID ELECTRICALLY CONDUCTIVE SHEET.
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |