US4093100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel construction and method
Assignee: Orkem SA
•
Filing: 1975-10-28
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Granted: 1978-06-06
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Expires: 1995-10-28
Abstract
Abstract A pressure vessel with an alloyed steel wall and having at least one ring of weldable steel secured thereon and wherein a temperature control jacket associated with said vessel is welded to said ring.
Inventors
- 👤 Hugh Ford
- 👤 George J. Mraz
- 👤 Jean Noel Simier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:56
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/002; F; F16; F16J; F16J12/00; Y; Y02; Y02E; Y02E30/00; Y02E30/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
An improved vessel which comprises: (a) a pressure vessel having a unitary, high strength alloy steel side wall; (b) at least one flange integral with and extending radially outwardly from said side wall; (c) at least one ring extending entirely around but not welded to said flange, said ring being comprised of a weldable material having a tensile strength which is less than the tensile strength of the wall of said pressure vessel; (d) a temperature control jacket surrounding and radially spaced outwardly from the wall of said pressure vessel, at least one end of said temperature control jacket being welded to said at least one weldable ring; and (e) ring compressing means extending entirely around and in contact with said at least one weldable ring, said ring compressing means being tensilely stressed and said at least one weldable ring being compressively stressed against said flange by said ring compressing means.
Claim 2
Dependent Claim
151 words
An improved vessel which comprises: (a) a pressure vessel having a unitary, high strength alloy steel side wall; (b) at least one flange integral with and extending radially outwardly from said side wall; (c) at least one ring extending entirely around but not welded to said flange, said ring being comprised of a weldable material having a tensile strength which is less than the tensile strength of the wall of said pressure vessel; (d) a temperature control jacket surrounding and radially spaced outwardly from the wall of said pressure vessel, at least one end of said temperature control jacket being welded to said at least one weldable ring; and (e) ring compressing means extending entirely around and in contact with said at least one weldable ring, said ring compressing means being tensilely stressed and said at least one weldable ring being compressively stressed against said flange by said ring compressing means.
Claim 3
Dependent Claim
20 words
The combination of claim 1 wherein said ring compressing means comprises wire wrapped around said at least one weldable ring.
Claim 4
Dependent Claim
18 words
The combination of claim 2 wherein the peripheral center portion of said at least one flange is undercut.
Claim 5
Dependent Claim
21 words
The combination of claim 1 wherein said ring compressing means comprises a belt wrapped around said at least one weldable length.
Claim 6
Dependent Claim
18 words
The combination of claim 4 wherein the center peripheral portion of said at least one flange is undercut.
Claim 7
Dependent Claim
23 words
The combination of claim 1 wherein said ring compressing means comprises a second ring shrink fitted around said at least one weldable ring.
Claim 8
Dependent Claim
18 words
The combination of claim 6 wherein the center peripheral portion of said at least one flange is undercut.
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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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |