US4130969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hanging prestressed roof structure
Assignee: DSO MONTAJI PROMISHLENO MONTAJNO UPRAVLENIE
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Filing: 1976-12-10
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Granted: 1978-12-26
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Expires: 1996-12-10
Abstract
Abstract A hanging prestressed roof structure comprising a polygonal member receiving a supporting ring inscribed therein. Cable nets span the ring and have cables lying along chords of the ring.
Inventors
- 👤 Ivan B. Ivanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
A hanging prestressed roof structure comprising a support ring spaced above the ground, a plurality of first cables forming a first cable net and spanning said ring along chords thereof said first cables having points of intersection spaced around the center of said ring, first posts secured at their bottoms to said first cables, a plurality of second cables spanning said ring along chords thereof forming a second cable net, said second cables being secured to the tops of said first posts, a plurality of second posts secured at their bottoms to said second cables, and an upright peak support connected at its top directly to said ring by further cables while being supported at its bottom from additional cables secured to the tops of at least some of said posts.
Claim 2
Dependent Claim
131 words
A hanging prestressed roof structure comprising a support ring spaced above the ground, a plurality of first cables forming a first cable net and spanning said ring along chords thereof said first cables having points of intersection spaced around the center of said ring, first posts secured at their bottoms to said first cables, a plurality of second cables spanning said ring along chords thereof forming a second cable net, said second cables being secured to the tops of said first posts, a plurality of second posts secured at their bottoms to said second cables, and an upright peak support connected at its top directly to said ring by further cables while being supported at its bottom from additional cables secured to the tops of at least some of said posts.
Claim 3
Dependent Claim
22 words
The roof structure defined in claim 1 wherein the cables of said second cable net lie at right angles to one another.
Claim 4
Dependent Claim
25 words
The roof structure defined in claim 1 wherein at each intersection point of two cables of the same net the cables are connected rigidly together.
Claim 5
Dependent Claim
30 words
The roof structure defined in claim 1 wherein each of said posts is provided with a beam at its lower end affixed to the cables of the respective cable net.
References Cited (Backward Citations)
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Cited
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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) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |