Patent US4044501A successfully refreshed from Google Patents.
US4044501A
Expired / Lapsed
US
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Seed bed cover with improved, reinforced edge sections
Assignee: Johnson and Johnson
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Filing: 1976-10-22
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Granted: 1977-08-30
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Expires: 1996-10-22
Abstract
Abstract An improved, reinforced edge section for use on seed bed cover fabrics. The improved edge section is formed of multiple layers of the fabric along the side of the fabric. A plurality of openings is included through the multiple layer. To strengthen the edge section and prevent tearing, flexible reinforcing bands are located on the edge section securing the layers together. At least one band lies between each of the openings and the inside border of the layers, and at least one band lies between each of the openings and the outside border of the layers.
Inventors
- 👤 John Frydryk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:35
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/32; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24231; Y10T428/24264; Y10T428/24777; Y10T428/24793; Y10T428/24802
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
A flat, lightweight, porous, nonwoven fabric for use as a seed bed cover having improved, reinforced edge sections, each of said edge sections consisting of: multiple layers of said fabric in superimposed relationship on a side of said fabric, the layers of the edge section having an inside border facing the fabric and an outside border facing away from the fabric; a plurality of openings at spaced intervals through said multiple layers; and two flexible reinforcing bands on said edge section securing said layers together, each band extending in a continuous path along the length of the edge section, one band positioned between the openings and the inside border of the layers, the other band positioned between the openings and the outside border of the layers.
Claim 2
Dependent Claim
126 words
A flat, lightweight, porous, nonwoven fabric for use as a seed bed cover having improved, reinforced edge sections, each of said edge sections consisting of: multiple layers of said fabric in superimposed relationship on a side of said fabric, the layers of the edge section having an inside border facing the fabric and an outside border facing away from the fabric; a plurality of openings at spaced intervals through said multiple layers; and two flexible reinforcing bands on said edge section securing said layers together, each band extending in a continuous path along the length of the edge section, one band positioned between the openings and the inside border of the layers, the other band positioned between the openings and the outside border of the layers.
Claim 3
Dependent Claim
15 words
A fabric as defined in claim 1, wherein the reinforcing bands are adhesive binder materials.
Claim 4
Dependent Claim
18 words
A fabric as defined in claim 2 wherein the adhesive binder material is an adhesive hot melt material.
Claim 5
Dependent Claim
27 words
A fabric as defined in claim 1, wherein there are at least three layers of said fabric forming an edge section on a side of the fabric.
Claim 6
Dependent Claim
51 words
A fabric as defined in claim 1, wherein the band positioned between the openings and the inside border of the layers is a first intermittent line of reinforcing bands, and the band positioned between the openings and the outside border of the layers is a second intermittent line of reinforcing bands.
Claim 7
Dependent Claim
19 words
A fabric as defined in claim 1, wherein a plurality of openings is substantially encircled by a reinforcing band.
Claim 8
Dependent Claim
62 words
A fabric as defined in claim 1, wherein the two reinforcing bands of each edge section are provided by one continuous band positioned so that a portion of the band lies between all of the openings and the inside border of the layers and another portion of the band lies between all of the openings and the outside border of the layers.
Claim 9
Dependent Claim
14 words
A fabric as defined in claim 1, wherein the fabric is a spunbonded fabric.
Claim 10
Dependent Claim
59 words
A fabric as defined in claim 8, wherein there are two reinforcing bands of adhesive hot melt material, each band extending in a continuous path along the length of the edge section, one band positioned between the openings and the inside border of the layers, the other band positioned between the openings and the outside border of the layers.
Claim 11
Dependent Claim
33 words
A fabric as defined in claim 1 wherein the inside edges of said openings are adhered to the edges of the openings of adjacent layers of the fabric thereby providing a self-grommeting effect.
References Cited (Backward Citations)
US3767747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |