GB2002686A - Improvements in and relating to prefabricated subsurface drains - Google Patents
Improvements in and relating to prefabricated subsurface drainsInfo
- Publication number
- GB2002686A GB2002686A GB7831573A GB7831573A GB2002686A GB 2002686 A GB2002686 A GB 2002686A GB 7831573 A GB7831573 A GB 7831573A GB 7831573 A GB7831573 A GB 7831573A GB 2002686 A GB2002686 A GB 2002686A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet material
- filter
- laminated structure
- supporting
- prefabricated
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
- B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention concerns a laminated structure for use in prefabricated subsurface drains comprising a supporting sheet material and a filter sheet material. The filter sheet material has a permeability sufficient to allow the passage of water while retaining soil. The supporting sheet material has a structural configuration such that channels are formed between it and the filter sheet material to allow free flow of water within the plant of the laminated structure. The laminated structure may comprise the supporting sheet material with (a) the filter material on one side only, or (b) the filter material on both sides, or (c) the filter material on one side and an impermeable sheet material on the other side. The filter material preferably is a synthetic, thermoplastic filamentary, non woven fabric and the supporting material is preferably a thermoplastic plastics net-like material. The materials are preferably joined by a flame-bonding technique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3434577 | 1977-08-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2002686A true GB2002686A (en) | 1979-02-28 |
GB2002686B GB2002686B (en) | 1982-03-31 |
Family
ID=26155939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7831573A Expired GB2002686B (en) | 1977-08-16 | 1978-07-28 | Prefabricated subsurface drains |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU524262B2 (en) |
ES (1) | ES465947A3 (en) |
GB (1) | GB2002686B (en) |
ZA (1) | ZA786346B (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0259165A2 (en) * | 1986-09-05 | 1988-03-09 | Leucadia Inc | Subsurface drainage matting |
FR2661435A1 (en) * | 1990-04-27 | 1991-10-31 | Nortene Sa | Material in web form, particularly for drainage use |
EP0278605B1 (en) * | 1987-01-21 | 1992-09-09 | Netlon Limited | Drainage material and drainage core for a drainage system |
US5152633A (en) * | 1988-11-07 | 1992-10-06 | Netlon Limited | Method of reinforcing a paved surface |
US5273804A (en) * | 1988-11-07 | 1993-12-28 | Netlon Limited | Reinforcement for reinforcing a paved surface |
US5277520A (en) * | 1991-12-06 | 1994-01-11 | The Tensar Corporation | Grid composite for backfill barriers and waste applications |
EP0626187A1 (en) * | 1993-05-26 | 1994-11-30 | Chisso Corporation | A filtering medium and a process for producing the same |
FR2738770A1 (en) * | 1995-09-15 | 1997-03-21 | Nortene Technologies | Plastic mesh material e.g. for garden, patio or balcony screen |
GB2327686A (en) * | 1997-06-23 | 1999-02-03 | Netlon Ltd | Electrically Conducting Element |
-
1978
- 1978-01-13 ES ES465947A patent/ES465947A3/en not_active Expired
- 1978-07-28 GB GB7831573A patent/GB2002686B/en not_active Expired
- 1978-08-14 AU AU38868/78A patent/AU524262B2/en not_active Expired
- 1978-11-10 ZA ZA00786346A patent/ZA786346B/en unknown
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0259165A2 (en) * | 1986-09-05 | 1988-03-09 | Leucadia Inc | Subsurface drainage matting |
EP0259165A3 (en) * | 1986-09-05 | 1989-09-27 | Leucadia Inc | Subsurface drainage matting |
EP0278605B1 (en) * | 1987-01-21 | 1992-09-09 | Netlon Limited | Drainage material and drainage core for a drainage system |
US5152633A (en) * | 1988-11-07 | 1992-10-06 | Netlon Limited | Method of reinforcing a paved surface |
US5273804A (en) * | 1988-11-07 | 1993-12-28 | Netlon Limited | Reinforcement for reinforcing a paved surface |
FR2661435A1 (en) * | 1990-04-27 | 1991-10-31 | Nortene Sa | Material in web form, particularly for drainage use |
US5277520A (en) * | 1991-12-06 | 1994-01-11 | The Tensar Corporation | Grid composite for backfill barriers and waste applications |
EP0626187A1 (en) * | 1993-05-26 | 1994-11-30 | Chisso Corporation | A filtering medium and a process for producing the same |
FR2738770A1 (en) * | 1995-09-15 | 1997-03-21 | Nortene Technologies | Plastic mesh material e.g. for garden, patio or balcony screen |
GB2327686A (en) * | 1997-06-23 | 1999-02-03 | Netlon Ltd | Electrically Conducting Element |
Also Published As
Publication number | Publication date |
---|---|
GB2002686B (en) | 1982-03-31 |
ZA786346B (en) | 1979-10-31 |
AU3886878A (en) | 1980-02-21 |
AU524262B2 (en) | 1982-09-09 |
ES465947A3 (en) | 1978-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19970728 |