Patent US4232480A successfully refreshed from Google Patents.
US4232480A
Expired / Lapsed
US
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Method and device for coloring bulk hydro mulch fibers
Assignee: WWJ (A NORTH CAROLINA Ltd LIABILITY COMPANY) LLC
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Filing: 1979-05-14
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Granted: 1980-11-11
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Expires: 1999-05-14
Abstract
Abstract A viscous liquid containing dye and possibly further additives is added to a package of hydraulic mulch material for hydraulic mulching. The viscous liquid and its additives are suitable to be later uniformly mixed through the hydraulic mulch during subsequent mixing and agitation with water prior to application, thereby eliminating the need for precoloring of the mulch material.
Inventors
- 👤 Otis R. Videen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:34
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/52
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
43 words
In the process for preparing a hydraulic mulch wherein defibrated vegetable materials are packaged in a shipping container with a dye, the improvement comprising addition of the dye to the defibrated vegetable material after the defibrated vegetable material is in its shipping container.
Claim 2
Dependent Claim
43 words
In the process for preparing a hydraulic mulch wherein defibrated vegetable materials are packaged in a shipping container with a dye, the improvement comprising addition of the dye to the defibrated vegetable material after the defibrated vegetable material is in its shipping container.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the dye is added in liquid form.
Claim 4
Dependent Claim
27 words
The process of claim 2 wherein the dye is added as a viscous liquid with a viscosity of about 100 to about 10,000 centipoises, at 20° C.
Claim 5
Dependent Claim
16 words
The process of claim 3 wherein the viscosity is from about 500 to about 2,000 centipoises.
Claim 6
Dependent Claim
16 words
The process of claim 3 wherein the viscosity is from about 750 to about 1,500 centipoises.
Claim 7
Dependent Claim
14 words
The process of claim 3 wherein the viscous liquid further includes a dispersing agent.
Claim 8
Dependent Claim
14 words
The process of claim 6 wherein the dispersing agent is a low foaming surfactant.
Claim 9
Dependent Claim
30 words
In a shipping container having a hydraulic mulch therein, said hydraulic mulch including defibrated vegetable material, the improvement comprising dye in concentrated form being present in a localized area thereof.
Claim 10
Dependent Claim
30 words
In a shipping container having a hydraulic mulch therein, said hydraulic mulch including defibrated vegetable material, the improvement comprising dye in concentrated form being present in a localized area thereof.
Claim 11
Dependent Claim
21 words
The shipping container of claim 8 wherein substantially none of the dye is absorbed into the interior of the vegetable material.
References Cited (Backward Citations)
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Cited
US3091436A
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US3214866A
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US3218149A
Cited
US3881278A
Cited
US4067140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |