US3584657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange for multilayer container
Assignee: Fried Krupp AG
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Filing: 1969-09-22
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Granted: 1971-06-15
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Expires: 1989-09-22
Abstract
Abstract The provision of a substantially cylindrical sheet metal body with a flange, in which the sheet metal body is built up of a thin-walled basic pipe and a plurality of superimposed sheet metal layers while the flange proper is built up of additional sheet metal layers which have one end substantially flush with the one end of said sheet metal body, the flange forming superimposed layers being welded to each other and to said sheet metal body while decreasing stepwise in length, i.e. in the axial direction of said sheet metal body.
Inventors
- 👤 Karl-Heinz Dorr
- 👤 Joachim Ehle
- 👤 Joachim Wartenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:53
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/24; F; F16; F16L; F16L41/00; F16L41/08; F16L41/082; F16L41/084; F17; F17C; F17C13/00; F17C13/002; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/013; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A substantially cylindrical sheet metal body, especially high pressure resistant body, which comprises: a relatively thinwalled basic pipe body, a plurality of superimposed first sheet metal layers surrounding said pipe body and welded thereto and to each other, and flange means formed by portions of said first sheet metal layers and including second superimposed sheet metal layers having their ends substantially flush with one end of said first sheet metal layers and welded thereto, said second superimposed sheet metal layers decreasing by steps in the direction of the axial length of said pipe body.
Claim 2
Dependent Claim
94 words
A substantially cylindrical sheet metal body, especially high pressure resistant body, which comprises: a relatively thinwalled basic pipe body, a plurality of superimposed first sheet metal layers surrounding said pipe body and welded thereto and to each other, and flange means formed by portions of said first sheet metal layers and including second superimposed sheet metal layers having their ends substantially flush with one end of said first sheet metal layers and welded thereto, said second superimposed sheet metal layers decreasing by steps in the direction of the axial length of said pipe body.
Claim 3
Dependent Claim
62 words
A sheet metal body according to claim 1, in which said first and second superimposed sheet metal layers at their said one end are provided with apertures which are so arranged that the apertures of directly adjacent sheet metal layers are offset with regard to each other in the circumferential direction of said sheet metal body, said apertures being filled with weld.
Claim 4
Dependent Claim
16 words
A sheet metal body according to claim 2, in which said apertures are formed by slots.
Claim 5
Dependent Claim
36 words
A sheet metal body according to claim 1, which includeS threaded blind hole means arranged at said one ends of said first and second superimposed sheet metal layers and surrounded by the weld in said apertures.
Claim 6
Dependent Claim
52 words
A sheet metal body according to claim 1, in which the end face of said sheet metal body at the said one end of said first and second sheet metal layers is at least in part formed by a ring of solid material welded to said first and second sheet metal layers.
Claim 7
Dependent Claim
25 words
A sheet metal body according to claim 5, in which said ring has those end faces thereof stepped which face the adjacent sheet metal layers.
Claim 8
Dependent Claim
48 words
A sheet metal body according to claim 1, which includes a pipe section extending through said first and second sheet metal layers and communicating with the interior of said basic pipe body for connection to a lateral flange, said pipe section being welded to said sheet metal body.
Claim 9
Dependent Claim
20 words
A sheet metal body according to claim 7, in which said pipe section is welded to said basic pipe body.
Claim 10
Dependent Claim
93 words
A sheet metal body according to claim 1, which includes a passage extending from the outside of said sheet metal body to the interior thereof through all of said sheet metal layers and said basic pipe body and having a stepwise increasing diameter, and an annular body having its lateral surfaces contoured in conformity with the contour of said passage and inserted into the latter, said annular body being welded to said first and second sheet metal layers and said basic pipe body and being adapted to be connected to a lateral flange.
Claim 11
Dependent Claim
109 words
A sheet metal body according to claim 1, which includes an annular member tapering in the direction from its inside diameter to its outside diameter and inserted in said basic pipe body and adjacent said first sheet metal layers, said annular member having a passage therethrough extending from the outside thereof to the interior of said annular member, and a pipe section extending from the outside of said sheet metal body into said passage for connection with a lateral flange, said pipe section and said annular member being welded to each other, and said annular body being welded to said basic pipe body and adjacent first sheet metal layers.
Claim 12
Dependent Claim
26 words
A sheet metal body according to claim 1, which includes ring means shrunk onto and welded to the outermost one of said second sheet metal layers.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |