US3589088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure container of prestressed concrete
Assignee: Walter Bau AG
•
Filing: 1969-01-14
•
Granted: 1971-06-29
•
Expires: 1989-01-14
Abstract
Abstract A pressure container for a nuclear reactor made of prestressed concrete in which annular prestressing elements are disposed in spaced relation proximate the inner wall of a concrete casing and extend circumferentially thereof and radial prestressing elements extend transversely of the annular elements and are secured thereto so that, when the radial elements are tightened or stressed, outwardly directed pressure is applied to the annular elements which are thereby expanded and prestressed.
Inventors
- 👤 Otto Seidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:04
CPC Classifications
E; E04; E04H; E04H7/00; E04H7/02; E04H7/18; E04H7/20; G; G21; G21C; G21C13/00; G21C13/08; G21C13/093; G21C13/0933; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
131 words
Pressure container of prestressed concrete, particularly for an atomic pile or nuclear reactor, said container having an essentially circular cross section, and comprising a heavy walled pressure casing made of concrete, a plurality of annular stressing elements disposed in spaced relation to and proximate one surface of said casing, embedded in concrete in radially prestressed condition, said annular stressing elements being arranged in concentric rings inside said pressure casing, and a plurality of generally radially extending radial tensioning elements disposed in said pressure casing transversely of said annular stressing elements and longitudinally movable relative to said casing for tensioning said annular stressing elements, said radially extending elements engaging inside of a casing area occupied by said annular stressing elements and being adapted to be stressed with respect to said pressure casing.
Claim 2
Dependent Claim
131 words
Pressure container of prestressed concrete, particularly for an atomic pile or nuclear reactor, said container having an essentially circular cross section, and comprising a heavy walled pressure casing made of concrete, a plurality of annular stressing elements disposed in spaced relation to and proximate one surface of said casing, embedded in concrete in radially prestressed condition, said annular stressing elements being arranged in concentric rings inside said pressure casing, and a plurality of generally radially extending radial tensioning elements disposed in said pressure casing transversely of said annular stressing elements and longitudinally movable relative to said casing for tensioning said annular stressing elements, said radially extending elements engaging inside of a casing area occupied by said annular stressing elements and being adapted to be stressed with respect to said pressure casing.
Claim 3
Dependent Claim
24 words
Pressure container in accordance with claim 1, where said radial tensioning elements are anchored for stressing proximate the outer circumference of said pressure casing.
Claim 4
Dependent Claim
30 words
Pressure container in accordance with claim 1, where said radial tensioning elements are securely anchored in said pressure casing and adapted to be stressed from the inside of said container.
Claim 5
Dependent Claim
28 words
Pressure container in accordance with claim 3, where said radial tensioning elements are staggered in accordance with their length in relation to the thickness of said pressure casing.
Claim 6
Dependent Claim
33 words
Pressure container in accordance with claim 1, comprising said radial tensioning elements arranged in horizontal layers each between two horizontal layers of concentric annular stressing elements and connected thereto for radially outward pull.
Claim 7
Dependent Claim
56 words
Pressure container in accordance with claim 5, comprising annular stressing elements disposed in groups proximate radial tensioning members having spacers therebetween and an anchoring block proximate each innermost annular stressing element operative during tensioning to transfer the outwardly effective forces of the radial tensioning members to the annular tensioning elements associated with the radial tensioning member.
Claim 8
Dependent Claim
49 words
Pressure container in accordance with claim 6, where said spacers are discs having a curvature following the curvature of said rings and having at least one bore for receiving a radial tensioning member and having grooves extending in the direction of the circumference for accommodating said annular stressing elements.
Claim 9
Dependent Claim
17 words
Pressure container in accordance with claim 7, where said pressure casing is constituted by prefabricated concrete components.
Claim 10
Dependent Claim
15 words
Pressure container in accordance with claim 1, constructed with reference to a generally linear generatrix.
Claim 11
Dependent Claim
18 words
Pressure container in accordance with claim 1, constructed at least partly with reference to a generally curvilinear generatrix.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |