US4756511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silt fence
Assignee: CERTIFIED STAKE Co Inc A CORP OF
•
Filing: 1987-04-27
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Granted: 1988-07-12
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Expires: 2007-04-27
Abstract
Abstract A silt fence comprises a plurality of spaced stakes having pointed ends for being anchored to the ground. A fabric is secured to and spans the stakes to create the fence. The fabric is secured to the stakes by means of mounting strips positioned against each stake with the fabric therebetween. Fasteners extend through the strips and fabric and into the stakes.
Inventors
- 👤 George H. Wright, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:29
CPC Classifications
E; E01; E01F; E01F7/00; E01F7/02; E04; E04H; E04H17/00; E04H17/02; E04H17/10; E04H17/124
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
131 words
A silt fence for preventing soil erosion at construction sites and the like comprising a plurality of spaced wooden stakes of rectangular cross section, each of said stakes comprising a main body portion having a pointed end to provide anchoring means at its lower end, a flexible woven fabric web disposed against and spanning said stakes, said anchoring means extending below said web whereby said web remains above ground level when said fence is mounted in a vertical position, a plurality of web mounting flat strips of rectangular cross section thinner and narrower than said stakes, each of said strips being disposed against one of said stakes with said web sandwiched therebetween, and fasteners extending piercing through each of said strips and through said web and embedded into its respective stake.
Claim 2
Dependent Claim
131 words
A silt fence for preventing soil erosion at construction sites and the like comprising a plurality of spaced wooden stakes of rectangular cross section, each of said stakes comprising a main body portion having a pointed end to provide anchoring means at its lower end, a flexible woven fabric web disposed against and spanning said stakes, said anchoring means extending below said web whereby said web remains above ground level when said fence is mounted in a vertical position, a plurality of web mounting flat strips of rectangular cross section thinner and narrower than said stakes, each of said strips being disposed against one of said stakes with said web sandwiched therebetween, and fasteners extending piercing through each of said strips and through said web and embedded into its respective stake.
Claim 3
Dependent Claim
19 words
The silt fence of claim 1 wherein said web is completely wrapped around the endmost one of said stakes.
Claim 4
Dependent Claim
18 words
The silt fence of claim 1 wherein a plurality of said fasteners extends through each of said strips.
Claim 5
Dependent Claim
33 words
The silt fence of claim 3 wherein each of said stakes includes a flat side, and each of said strips having a flat side disposed against said flat side of a respective stake.
Claim 6
Dependent Claim
23 words
The silt fence of claim 1 wherein each of said strips is of a length substantially equal to the width of said web.
Claim 7
Dependent Claim
31 words
The silt fence of claim 1 wherein each of said strips is of a length greater than the width of said web, and each of said strips extending beyond said web.
Claim 8
Dependent Claim
11 words
The silt fence of claim 1 wherein said fasteners are staples.
Claim 9
Dependent Claim
128 words
A silt fence for preventing soil erosion as construction sites and the like comprising a plurality of spaced stakes, each of said stakes comprising a main body portion having anchoring means at its lower end, a fabric web disposed against and spanning said stakes, said anchoring means extending below said web whereby said web remains above ground level when said fence is mounted in a vertical position, a plurality of web mounting strips, each of said strips being disposed against one of said stakes with said web sandwiched therebetween, fasteners extending through each of said strips and through said web and into its respective stakes said web being completely wrapped around the endmost one of said stakes, a pair of said strips being secured to said endmost stake.
Claim 10
Dependent Claim
128 words
A silt fence for preventing soil erosion as construction sites and the like comprising a plurality of spaced stakes, each of said stakes comprising a main body portion having anchoring means at its lower end, a fabric web disposed against and spanning said stakes, said anchoring means extending below said web whereby said web remains above ground level when said fence is mounted in a vertical position, a plurality of web mounting strips, each of said strips being disposed against one of said stakes with said web sandwiched therebetween, fasteners extending through each of said strips and through said web and into its respective stakes said web being completely wrapped around the endmost one of said stakes, a pair of said strips being secured to said endmost stake.
Claim 11
Dependent Claim
68 words
The silt fence of claim 8 wherein said web is wrapped around said endmost stake in a double layer at one side of said endmost stake, said pair of strips being disposed on the same side of said endmost stake, one layer of said web being between said endmost stake and one of said strips, and the other layer of said web being between said pair of strips.
Claim 12
Dependent Claim
18 words
The silt fence of claim 9 wherein a plurality of said fasteners extends through each of said strips.
Claim 13
Dependent Claim
33 words
The silt fence of claim 10 wherein each of said stakes includes a flat side, and each of said strips having a flat side disposed against said flat side of a respective stake.
Claim 14
Dependent Claim
23 words
The silt fence of claim 11 wherein each of said strips is of a length substantially equal to the width of said web.
Claim 15
Dependent Claim
31 words
The silt fence of claim 11 wherein each of said strips is of a length greater than the width of said web, and each of said strips extending beyond said web.
Claim 16
Dependent Claim
70 words
The silt fence of claim 11 wherein each of said stakes is a wooden stake of rectangular cross section, and anchoring means being a pointed end at the lower end of each stake, each of said strips being a flat wooden strip of rectangular cross section thinner and narrower than each of said stakes, one of said strips being provided for each of said stakes, and said fasteners being staples.
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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) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |