Patent US3643391A successfully refreshed from Google Patents.
US3643391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof construction
Assignee: Individual
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Filing: 1969-10-03
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Granted: 1972-02-22
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Expires: 1989-10-03
Abstract
Abstract A flexible roof structure supported by tension members extending in a catenary between the walls of the structure and a second set of tension members interconnected to the first set of tension members through a hold, the tension members of the first set in position and preventing undue flexing of the roof.
Inventors
- 👤 Sebastian Mollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:20
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
113 words
A roof structure comprising: a first set of spaced, substantially parallel tension members for supporting vertical downward loads, a second set of spaced, substantially parallel tension members disposed above and transverse to said first set for supporting vertical upward windloads, flexible roofing skins supported by said first set of tension members, spacing means traversing said first set of tension members to maintain said tension members of said first set at laterally spaced relationship, a plurality of spaced force-transmitting compression members arranged in rows substantially in alignment with said tension members of said second set, and said force-transmitting compression members interconnecting said tension members of said first and said second sets at spaced locations.
Claim 2
Dependent Claim
113 words
A roof structure comprising: a first set of spaced, substantially parallel tension members for supporting vertical downward loads, a second set of spaced, substantially parallel tension members disposed above and transverse to said first set for supporting vertical upward windloads, flexible roofing skins supported by said first set of tension members, spacing means traversing said first set of tension members to maintain said tension members of said first set at laterally spaced relationship, a plurality of spaced force-transmitting compression members arranged in rows substantially in alignment with said tension members of said second set, and said force-transmitting compression members interconnecting said tension members of said first and said second sets at spaced locations.
Claim 3
Dependent Claim
27 words
A roof structure as defined in claim 1, wherein said tension members of said first set extend substantially perpendicular to said tension members of said second set.
Claim 4
Dependent Claim
99 words
A roof structure as defined in claim 2, further comprising: a secondary tension member, structural members, said secondary tension member interconnecting said structural members, said tension members of said second set being connected to said structural members, compression support members connected at one end to a respective one of said structural members and being supported at its other end by a supporting tension member secured to a tension member of said first set, and supporting tension members anchored to corner structural members and to said compression members and supported below the plane of said first set of tension members.
Claim 5
Dependent Claim
15 words
A roof structure as defined in claim 3, wherein said spacing means includes a catwalk.
Claim 6
Dependent Claim
30 words
A roof structure as defined in claim 1, wherein said tension members of said first set extend in substantially the same direction as the tension members of said second set.
Claim 7
Dependent Claim
53 words
A roof structure as defined in claim 5, further comprising: a secondary tension member, structural members, said secondary tension member interconnecting said structural members, said tension members of said second set being connected to said structural members, a supporting tension member, and compression members interconnecting said supporting tension member and said structural members.
Claim 8
Dependent Claim
15 words
A roof structure as defined in claim 6, wherein said spacing means includes a catwalk.
Claim 9
Dependent Claim
85 words
A roof structure as defined in claim 1 wherein said second set of tensIon members extends across opposed structural walls of said roof structure and are held above and transverse to said first set of tension members at each intersection with a tension member of said first set, said tension members of said second set being held transverse to said first set of tension members a predetermined distance above each tension member of said first set and disposed substantially in the form of a polygon.
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) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |