US4183237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making aluminum cans
Assignee: PRECISION PRODUCTS OF TENNESSEE Inc
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Filing: 1978-04-24
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Granted: 1980-01-15
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Expires: 1998-04-24
Abstract
Abstract A container for drawing or ironing dies is particularly useful but is not limited to can making. It includes an outer ring having an inwardly extending flange at one end and a disc secured to its other end so as to provide a peripheral space for receiving at least three segments which are resiliently urged against a die ring. The radial length of the slot is greater than the radial length of the segments so that the die ring can be displaced from the normal axis of the die pack. Means co-axial with the normal axis of the die limit inward movement of the segments.
Inventors
- 👤 Dennis A. Schaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:41
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/20; B21D22/28; B21D22/283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
The method of making aluminum cans or the like which comprises: A. providing a die assembly having a plurality of carbide dies arranged in axial alignment, at least some of said dies being mounted in a floating ring surrounded by at least three segments mounted in a peripheral space, and a carbide disc bearing against the exit side of said die that is mounted in the floating ring; B. pushing a can blank on a carbide punch through said dies to form a can; C. removing said can from the dies; and D. after removing said can from the dies, centering the dies mounted in the floating ring by resiliently urging the segments surrounding said floating ring inwardly toward stop means concentric with the normal axis of the dies.
Claim 2
Independent Claim
129 words
The method of making aluminum cans or the like which comprises: A. providing a die assembly having a plurality of carbide dies arranged in axial alignment, at least some of said dies being mounted in a floating ring surrounded by at least three segments mounted in a peripheral space, and a carbide disc bearing against the exit side of said die that is mounted in the floating ring; B. pushing a can blank on a carbide punch through said dies to form a can; C. removing said can from the dies; and D. after removing said can from the dies, centering the dies mounted in the floating ring by resiliently urging the segments surrounding said floating ring inwardly toward stop means concentric with the normal axis of the dies.
References Cited (Backward Citations)
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Cited
US1742795A
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US3359775A
Cited
US3653249A
Cited
US3735629A
Cited
US3943740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |