FR2386760A1 - Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats - Google Patents
Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flatsInfo
- Publication number
- FR2386760A1 FR2386760A1 FR7711185A FR7711185A FR2386760A1 FR 2386760 A1 FR2386760 A1 FR 2386760A1 FR 7711185 A FR7711185 A FR 7711185A FR 7711185 A FR7711185 A FR 7711185A FR 2386760 A1 FR2386760 A1 FR 2386760A1
- Authority
- FR
- France
- Prior art keywords
- section
- large area
- lower parts
- oval cross
- curved upper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920003023 plastic Polymers 0.000 title abstract 2
- 239000004033 plastic Substances 0.000 title abstract 2
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G9/1407—Greenhouses of flexible synthetic material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Greenhouses (AREA)
Abstract
The tubular hoops are arranged to have two straight sides (3, 4) parallel with each other and two curved sides (1) and (2) at the opposite ends. The hoops are inserted at regular intervals under a plastics sheet to form a tunnel which can be supported at the ends by anchorages and along the sides by vertical supports.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7711185A FR2386760A1 (en) | 1977-04-07 | 1977-04-07 | Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7711185A FR2386760A1 (en) | 1977-04-07 | 1977-04-07 | Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2386760A1 true FR2386760A1 (en) | 1978-11-03 |
Family
ID=9189375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7711185A Withdrawn FR2386760A1 (en) | 1977-04-07 | 1977-04-07 | Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2386760A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000025571A1 (en) * | 1998-10-30 | 2000-05-11 | Rovero Systems B.V. | Building having joists and a gutter, and a gutter and joist for use therein |
WO2017178797A1 (en) * | 2016-04-14 | 2017-10-19 | Haygrove Limited | Polytunnel structure |
PL131113U1 (en) * | 2022-11-29 | 2024-06-03 | Mabo Spółka Z Ograniczoną Odpowiedzialnością | Profile |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3488901A (en) * | 1964-11-02 | 1970-01-13 | Diversification Dev Inc | Modular free-span curvilinear structures |
-
1977
- 1977-04-07 FR FR7711185A patent/FR2386760A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3488901A (en) * | 1964-11-02 | 1970-01-13 | Diversification Dev Inc | Modular free-span curvilinear structures |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000025571A1 (en) * | 1998-10-30 | 2000-05-11 | Rovero Systems B.V. | Building having joists and a gutter, and a gutter and joist for use therein |
WO2017178797A1 (en) * | 2016-04-14 | 2017-10-19 | Haygrove Limited | Polytunnel structure |
CN109152338A (en) * | 2016-04-14 | 2019-01-04 | 黑革萝有限公司 | Vinyl house structure |
US20190136571A1 (en) * | 2016-04-14 | 2019-05-09 | Haygrove Limited | Polytunnel structure |
GB2549469B (en) * | 2016-04-14 | 2019-12-25 | Haygrove Ltd | Polytunnel structure |
PL131113U1 (en) * | 2022-11-29 | 2024-06-03 | Mabo Spółka Z Ograniczoną Odpowiedzialnością | Profile |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |