US3170236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a casing
Assignee: Metal Flo Corp
•
Filing: 1959-09-28
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Granted: 1965-02-23
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Expires: 1979-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jess L Massingill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:24
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF FORMING A TUBULAR CASING HAVING AXIAL PORTIONS OF VARIOUS DIMENSIONS AND RADIALLY EXTENDING FLANGE COMPRISING THE STEPS OF INSERTING A TUBULAR BLANK INTO A DIE HAVING AN INNER CONFIGURATION SIMMILAR TO THAT OF THE CASING, INTERIORLY EXPANDING THE CIRCUMFERENCE OF A FIRST AXIAL PORTION OF THE BLANK WHILE SAID BLANK IS RELATIVELY STATIONARY WITH RESPECT TO THE DIE, AXIALLY TRANSLATING THE ENTIRE BLANK WITH RESPECT TO THE DIE THROUGH A REDUCED PORTION FORMED ON THE DIE TO EXTERIORLY REDUCE A SECOND AXIAL PORTION OF THE BLANK AND FORCING THE END OF THE REDUCED AXIAL PORTION AGAINST A SECOND DIE WHILE FIXING SAID BLANK WITH RESPECT TO THE FIRST DIE TO FORM AN INWARDLY PROJECTING FLANGE FROM THE END OF SAID REDUCED PORTION.
Claim 2
Independent Claim
125 words
THE METHOD OF FORMING A TUBULAR CASING HAVING AXIAL PORTIONS OF VARIOUS DIMENSIONS AND RADIALLY EXTENDING FLANGE COMPRISING THE STEPS OF INSERTING A TUBULAR BLANK INTO A DIE HAVING AN INNER CONFIGURATION SIMMILAR TO THAT OF THE CASING, INTERIORLY EXPANDING THE CIRCUMFERENCE OF A FIRST AXIAL PORTION OF THE BLANK WHILE SAID BLANK IS RELATIVELY STATIONARY WITH RESPECT TO THE DIE, AXIALLY TRANSLATING THE ENTIRE BLANK WITH RESPECT TO THE DIE THROUGH A REDUCED PORTION FORMED ON THE DIE TO EXTERIORLY REDUCE A SECOND AXIAL PORTION OF THE BLANK AND FORCING THE END OF THE REDUCED AXIAL PORTION AGAINST A SECOND DIE WHILE FIXING SAID BLANK WITH RESPECT TO THE FIRST DIE TO FORM AN INWARDLY PROJECTING FLANGE FROM THE END OF SAID REDUCED PORTION.
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |