Patent US3612331A successfully refreshed from Google Patents.
US3612331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel with shear bands
Assignee: Foster Wheeler Inc
•
Filing: 1969-05-21
•
Granted: 1971-10-12
•
Expires: 1989-05-21
Abstract
Abstract A pressure vessel in which a pair of vessel members are attached by means preventing relative rotative movement between the members, and means for preventing relative axial movement between the members.
Inventors
- 👤 Svend M Jorgensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:23
CPC Classifications
F; F16; F16J; F16J12/00; B; B01; B01J; B01J3/00; B01J3/002; F16J13/00; F16J13/02; F16J13/12; F16L; F16L25/00; F16L25/0018
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
107 words
A pressure vessel comprising a hollow cylinder having an open end portion formed by a plurality of longitudinal splines, a cylindrical attachment member for attaching to said open end portion, the outer circumference of said attachment member having a plurality of longitudinal grooves formed therein to receive said splines with the inner surfaces of said splines being supported by the inner walls of said grooves, the length of said longitudinal grooves being equal to the length of said longitudinal splines, the outer surfaces of said attachment member and said splines defining a plurality of axially spaced circumferential grooves, and a plurality of bands extending in said grooves.
Claim 2
Dependent Claim
107 words
A pressure vessel comprising a hollow cylinder having an open end portion formed by a plurality of longitudinal splines, a cylindrical attachment member for attaching to said open end portion, the outer circumference of said attachment member having a plurality of longitudinal grooves formed therein to receive said splines with the inner surfaces of said splines being supported by the inner walls of said grooves, the length of said longitudinal grooves being equal to the length of said longitudinal splines, the outer surfaces of said attachment member and said splines defining a plurality of axially spaced circumferential grooves, and a plurality of bands extending in said grooves.
Claim 3
Dependent Claim
19 words
The vessel of claim 1 wherein said attachment member comprises a closure plug extending within said open end portion.
Claim 4
Dependent Claim
17 words
The vessel of claim 1 wherein said attachment member is in the form of another hollow cylinder.
Claim 5
Dependent Claim
18 words
The vessel of claim 1 wherein said attachment member is in the form of a semispherical closure member.
References Cited (Backward Citations)
US2417195A
Cited
US2439161A
Cited
US2553220A
Cited
US2936093A
Cited
US2890900A
Cited
US3092285A
Cited
DE1179889B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |