US3275794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for welding sheet material
Assignee: McDonnell Aircraft Corp
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Filing: 1963-11-06
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Granted: 1966-09-27
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Expires: 1983-11-06
Abstract
No abstract record available.
Inventors
- 👤 Dubusker William
- 👤 Frank S Pogorzelski
- 👤 Clem W Fridrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:23
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/04; B23K37/0417
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
APPARATUS FOR FUSION WELDING ADJACENT EDGES OF THIN WELDABLE SHEET MATERIAL COMPRISING A SUPPORT MEMBER, HEAT CONDUCTIVE MEANS DISPOSED UPON SAID SUPPORT MEMBER AND FORMED WITH AN ELONGATED RECESS SEPARATING SURFACES FOR RECEIVING THE EDGES OF SHEET MATERIAL TO BE WELDED, A PLURALITY OF CLAMPING FINGERS COOPERABLE WITH SAID RECEIVING SURFACES FOR THE SHEET MATERIAL, EACH OF SAID FINGERS HAVING AN END PORTION ENGAGEABLE UPON THE SHEET MATERIAL PLACED UPON SAID RECEIVING SURFACES OF SAID HEAT CONDUCTIVE MEANS, FIXED STRUCTURE SPACED FROM SAID HEAT CONDUCTIVE MEANS AND EXTENDING ON EACH SIDE THEREOF, A PLURALITY OF SPACED THREADED ELEMENTS CARRIED BY SAID FIXED STRUCTURE IN ROWS ON OPPOSITE SIDES OF SAID HEAT CONDUCTIVE MEANS, EACH CLAMPING FINGER PIVOTALLY ENGAGEING ONE OF SAID THREADED ELEMENTS INTERMEDIATE ITS END PORTIONS SUCH THAT EACH FINGER IS PIVOTALLY SUPPORTED BETWEEN ITS SAID END PORTIONS ON A THREADED ELEMENT, OPPOSED MEANS TO POSITIVELY ACTUATE SAID FINGERS INCLUDING FIRST IN-
Claim 2
Dependent Claim
153 words
APPARATUS FOR FUSION WELDING ADJACENT EDGES OF THIN WELDABLE SHEET MATERIAL COMPRISING A SUPPORT MEMBER, HEAT CONDUCTIVE MEANS DISPOSED UPON SAID SUPPORT MEMBER AND FORMED WITH AN ELONGATED RECESS SEPARATING SURFACES FOR RECEIVING THE EDGES OF SHEET MATERIAL TO BE WELDED, A PLURALITY OF CLAMPING FINGERS COOPERABLE WITH SAID RECEIVING SURFACES FOR THE SHEET MATERIAL, EACH OF SAID FINGERS HAVING AN END PORTION ENGAGEABLE UPON THE SHEET MATERIAL PLACED UPON SAID RECEIVING SURFACES OF SAID HEAT CONDUCTIVE MEANS, FIXED STRUCTURE SPACED FROM SAID HEAT CONDUCTIVE MEANS AND EXTENDING ON EACH SIDE THEREOF, A PLURALITY OF SPACED THREADED ELEMENTS CARRIED BY SAID FIXED STRUCTURE IN ROWS ON OPPOSITE SIDES OF SAID HEAT CONDUCTIVE MEANS, EACH CLAMPING FINGER PIVOTALLY ENGAGEING ONE OF SAID THREADED ELEMENTS INTERMEDIATE ITS END PORTIONS SUCH THAT EACH FINGER IS PIVOTALLY SUPPORTED BETWEEN ITS SAID END PORTIONS ON A THREADED ELEMENT, OPPOSED MEANS TO POSITIVELY ACTUATE SAID FINGERS INCLUDING FIRST IN-
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |