US4100708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building roofing structure
Assignee: Individual
•
Filing: 1977-01-10
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Granted: 1978-07-18
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Expires: 1997-01-10
Abstract
Abstract A characteristic feature of the present invention lies in that in the building roofing structure is made of a number of similar elements in the form of an arch and a tie beam. The tie beam of each arch is made of at least one panel with a framework comprising longitudinal chords and cross-pieces and of a prestressed sheet covering connected to the framework.
Inventors
- 👤 Anatoly Pavlovich Bobrovnikov
- 👤 Gennady Grigorievich Mikhailov
- 👤 Gennady Ivanovich Soloviev
- 👤 Sergei Grigorievich Chatchenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:18
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/12; E04B7/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
211 words
A building roofing structure comprising a plurality of alike structural units disposed extending generally longitudinally in parallel relationship; each unit comprising a plurality of members connected to define an arch, a plurality of paired hangers connected to the arch disposed paired along the span of the arch substantially normal thereto in plan, each pair of hangars defining similar and equal sides of a triangular configuration in cross section with the arch defining the apex, each end of the arch being bifurcated and defining a pair of hangars at an angle relative to the longitudinal direction of the arch and each defining a continuation of the arch, laterally spaced parallel ties remote from the arch connected to respective ones of the paired hangers at ends thereof opposite to the ends thereof connected to said arch, each of the ties of each unit comprising a plurality of longitudinal chords, a plurality of crosspieces connecting the ties transversely of each of the corresponding units at points where the paired hangers are connected to respective ones of the two parallel ties of a unit; and each unit having prestressed sheet material overlying the space between the parallel ties and crosspieces therein and secured to the ties to thereby participate in the load-bearing of each unit.
Claim 2
Dependent Claim
211 words
A building roofing structure comprising a plurality of alike structural units disposed extending generally longitudinally in parallel relationship; each unit comprising a plurality of members connected to define an arch, a plurality of paired hangers connected to the arch disposed paired along the span of the arch substantially normal thereto in plan, each pair of hangars defining similar and equal sides of a triangular configuration in cross section with the arch defining the apex, each end of the arch being bifurcated and defining a pair of hangars at an angle relative to the longitudinal direction of the arch and each defining a continuation of the arch, laterally spaced parallel ties remote from the arch connected to respective ones of the paired hangers at ends thereof opposite to the ends thereof connected to said arch, each of the ties of each unit comprising a plurality of longitudinal chords, a plurality of crosspieces connecting the ties transversely of each of the corresponding units at points where the paired hangers are connected to respective ones of the two parallel ties of a unit; and each unit having prestressed sheet material overlying the space between the parallel ties and crosspieces therein and secured to the ties to thereby participate in the load-bearing of each unit.
Claim 3
Dependent Claim
30 words
A building roofing structure according to claim 1, in which said crosspieces are at the level of said ties, said sheet material being disposed overlying said crosspieces and connected thereto.
Claim 4
Dependent Claim
103 words
A building roofing structure according to claim 2, in which some of said structural units are laterally spaced, a plurality of paired opposed upstanding frame members connected to the parallel ties of a corresponding unit for supporting it, parallel ties for each of the structural units connected to and supporting the upstanding frame members and disposed longitudinally in corresponding planes with the ties of the corresponding structural unit, and a plurality of crosspieces constructed similarly to said chords in cross section connecting the laterally spaced lowermost support ties of next adjacent structural units, whereby the laterally spaced structural units define structures for skylights.
Claim 5
Dependent Claim
70 words
A building roofing structure according to claim 1, in which said additional ties underlie the first-mentioned ties of each structural unit and are connected thereto parallel therewith, said crosspieces being disposed directly connecting the additional ties, said structural units being laterally disposed, connecting crosspieces connecting the ties of next adjacent structural units and disposed parallel to the first-mentioned crosspieces, and prestressed sheet material overlying the connecting crosspieces and connected thereto.
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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) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |