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US3890910A
Expired / Lapsed
US
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Method of laying webs of composite material containing plant seed
Assignee: Bunzl and Biach AG
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Filing: 1973-04-19
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Granted: 1975-06-24
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Expires: 1993-04-19
Abstract
Abstract Method of making and laying webs of composite material, including plant seeds, such as grass seeds. Method includes steps of preparing base by producing a gravel foundation overlaying a layer of sand, fertilizing the prepared surface, applying a vegetation layer, such as peat moss, then fertilizing and compacting and roughening the surface prior to laying down the composite web, the web being laid in strips that are sewn together and that are clamped to the ground by metal clamps which are removable by a pull cord.
Inventors
- 👤 Herbert Angruner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:37
CPC Classifications
A; A01; A01G; A01G20/00; Y; Y10; Y10S; Y10S111/00; Y10S111/901
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
Method of laying composite webs containing plant seeds over a field surface comprising: treating said field surface by producing a water-permeable gravel foundation, applying and solidifying a layer of sand, applying a complete fertibilizer having depot action, applying a vegetation layer and compacting it, applying a complete fertilizer which is immediately absorbable, and slightly roughening the surface; then laying the composite webs over the surface of the field; sewing the edges of the webs to each other; fastening the webs to the ground by removable wire clamps; and spreading a thin layer of sand in an amount of about 0.3 to 1 kg/m2.
Claim 2
Dependent Claim
103 words
Method of laying composite webs containing plant seeds over a field surface comprising: treating said field surface by producing a water-permeable gravel foundation, applying and solidifying a layer of sand, applying a complete fertibilizer having depot action, applying a vegetation layer and compacting it, applying a complete fertilizer which is immediately absorbable, and slightly roughening the surface; then laying the composite webs over the surface of the field; sewing the edges of the webs to each other; fastening the webs to the ground by removable wire clamps; and spreading a thin layer of sand in an amount of about 0.3 to 1 kg/m2.
Claim 3
Dependent Claim
31 words
Method according to claim 1, characterized by the fact that the vegetation layer is made in a thickness of 4 to 10 cm, from a mixture of sand and peat moss.
Claim 4
Dependent Claim
15 words
Method according to claim 1, characterized by the fact that nitrogen-rich complete fertilizers are used.
Claim 5
Dependent Claim
39 words
Method according to claim 1, characterized by the fact that the edge of the surface of composite webs is sunk into the ground and fastened there, and the resultant groove is filled with the material of the vegetation layer.
Claim 6
Dependent Claim
16 words
Method of claim 1, further comprising the step of spraying a binder onto said web surface.
Claim 7
Dependent Claim
28 words
Method of claim 1, wherein said webs are laid in abutting strips and the sewing is effected by a searing machine that is transportable along said abutting edges.
Claim 8
Dependent Claim
52 words
Method of claim 1, wherein, prior to said webs being fastened to the ground, a pull cord is laid over said webs and then the wire clamps are driven to connect said pull cord and web to the ground so that upon subsequently pulling said pull cord, said fastener may be removed.
Claim 9
Dependent Claim
52 words
Method of claim 1, wherein, prior to said webs being fastened to the ground, a pull cord is laid over said webs and then the wire clamps are driven to connect said pull cord and web to the ground so that upon subsequently pulling said pull cord, said fastener may be removed.
Claim 10
Dependent Claim
36 words
Method according to claim 1, characterized by the fact that the layer of sand is about 7 to 15 cm thick and is formed from sand having a particle size of not greater than 10 mm.
Claim 11
Dependent Claim
14 words
Method of claim 9, wherein said sand is mixed with a water saturable material.
Claim 12
Dependent Claim
17 words
Method of claim 10, wherein said water saturable material is pumice stone, crushed lava or peat moss.
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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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |