US3263053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube forming apparatus
Assignee: AMF Inc
•
Filing: 1964-11-27
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Granted: 1966-07-26
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Wallace C Rudd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:29
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/04; B23K13/043; B23K13/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
APPARATUS ADJUSTABLE FOR FORMING FROM FLEXIBLE SHEET MATERIAL, TUBING OF VARIOUS DIFFERENT DIMENSIONS, COMPRISING IN COMBINATION: A PLURALITY OF PAIRS OF OPPOSED TUBE FORMING ROLLS FOR ENGAGING AN ADVANCING STRIP OF SAID MATERIAL WHILE DEFLECTING THE OPPOSITE SIDE PORTIONS THEREOF AROUND TO FORM GENERALLY FLATTENED OVAL CROSSSECTIONAL SHAPED TUBING HAVING OPPOSED LONGITUDINALLYEXTENDING AND GENERALLY FLATTENED AREAS, ONE OF WHICH EMBODIES THE STRIP EDGES; AND MEANS FOR FORMING A LONGITTUDINAL SEAM JOINING SAID EDGES TO THEREBY COMPLETE THE TUBING OF SAID SHAPE, SAID ROLLS BEING SHAPED TO FORM SUBSTANTIALLY ARCUATE PORTIONS OF A PREDTERMINED RADIUS AND CONSTITUTING THE SIDES OF THE TUBING INTERCONNECTING THE SIDES OF SAID FLATTENED PORTIONS, SAID ROLLS BEIND ADJUSTABLE ALONG THEIR AXES RESPECTIVELY TO DIFFERENTLY SPACEDAPART POSITIONS TO FORM SUCH TUBING HAVING ITS SAID OPPOSED FLATTENED AREAS OF DIFFERENT WIDTHS BUT INTERCONNECTED IN EACH CASE BY SUCH ARCUATE CROSS-SECTIONAL PORTIONS HAVING SAID PREDETERMINED RADIUS.
Claim 2
Dependent Claim
147 words
APPARATUS ADJUSTABLE FOR FORMING FROM FLEXIBLE SHEET MATERIAL, TUBING OF VARIOUS DIFFERENT DIMENSIONS, COMPRISING IN COMBINATION: A PLURALITY OF PAIRS OF OPPOSED TUBE FORMING ROLLS FOR ENGAGING AN ADVANCING STRIP OF SAID MATERIAL WHILE DEFLECTING THE OPPOSITE SIDE PORTIONS THEREOF AROUND TO FORM GENERALLY FLATTENED OVAL CROSSSECTIONAL SHAPED TUBING HAVING OPPOSED LONGITUDINALLYEXTENDING AND GENERALLY FLATTENED AREAS, ONE OF WHICH EMBODIES THE STRIP EDGES; AND MEANS FOR FORMING A LONGITTUDINAL SEAM JOINING SAID EDGES TO THEREBY COMPLETE THE TUBING OF SAID SHAPE, SAID ROLLS BEING SHAPED TO FORM SUBSTANTIALLY ARCUATE PORTIONS OF A PREDTERMINED RADIUS AND CONSTITUTING THE SIDES OF THE TUBING INTERCONNECTING THE SIDES OF SAID FLATTENED PORTIONS, SAID ROLLS BEIND ADJUSTABLE ALONG THEIR AXES RESPECTIVELY TO DIFFERENTLY SPACEDAPART POSITIONS TO FORM SUCH TUBING HAVING ITS SAID OPPOSED FLATTENED AREAS OF DIFFERENT WIDTHS BUT INTERCONNECTED IN EACH CASE BY SUCH ARCUATE CROSS-SECTIONAL PORTIONS HAVING SAID PREDETERMINED RADIUS.
References Cited (Backward Citations)
US1534133A
Cited
US2922020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |