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Patent US4492729A successfully refreshed from Google Patents.
US4492729A
Expired / Lapsed
US
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Cohesive fibrous mat for in-transit particulate control
Assignee: Georgia-Pacific LLC
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Filing: 1982-10-08
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Granted: 1985-01-08
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Expires: 2002-10-08
Abstract
Abstract Particulate material is protected from dispersion during transportation by a cohesive fibrous mat comprised of the particulate material bound by cellulosic fibrous material and gelantinized starch.
Inventors
- 👤 Wyburn G. Bannerman
- 👤 Charles H. Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
B; B65; B65G; B65G3/00; B65G3/02; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T442/00; Y10T442/60; Y10T442/695
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
55 words
A protected mass of wood chips comprising a mass of wood chips wherein at least a substantial portion of the exposed surface is a cohesive fibrous mat comprising said wood chips bound by cellulosic fibrous material and gelatinized starch, said cohesive fibrous mat being essentially only on the surface of said mass of wood chips.
Claim 2
Dependent Claim
55 words
A protected mass of wood chips comprising a mass of wood chips wherein at least a substantial portion of the exposed surface is a cohesive fibrous mat comprising said wood chips bound by cellulosic fibrous material and gelatinized starch, said cohesive fibrous mat being essentially only on the surface of said mass of wood chips.
Claim 3
Dependent Claim
40 words
The protected mass of claim 1 wherein said cellulosic fibrous material is selected from the group consisting of sawdust, ground bark, particleboard furnish, pulp mill settling pond sludge, ground paper, ground newsprint, ground paperboard, hogged corrugated clippings and ground pulp.
Claim 4
Dependent Claim
14 words
The protected mass of claim 2 wherein said cellulosic fibrous material is ground newsprint.
Claim 5
Dependent Claim
24 words
The protected mass of claim 2 wherein said cellulosic fibrous material is a mixture of finely ground cellulosic material and coarsely ground cellulosic material.
Claim 6
Dependent Claim
36 words
The protected mass of claim 4 wherein said coarsely ground cellulosic material is selected from the group consisting of ground pulp, sawdust, ground bark, particleboard furnish, ground paper, ground newsprint, ground paperboard, and hogged corrugated clippings.
Claim 7
Dependent Claim
37 words
The protected mass of claim 2 wherein said cellulosic fibrous material is a mixture comprising ground sulfite pulp and at least one groundwood pulp selected from the group consisting of ground pulp, chemimechanical pulp and thermomechanical pulp.
Claim 8
Dependent Claim
24 words
The protected mass of claim 2 wherein said gelatinized starch is selected from the group consisting of gelatinized potato starch and gelatinized corn starch.
Claim 9
Dependent Claim
15 words
The protected mass of claim 2 wherein said gelatinized starch is cationic gelatinized potato starch.
Claim 10
Dependent Claim
15 words
The protected mass of claim 3 wherein said gelatinized starch is cationic gelatinized potato starch.
Claim 11
Dependent Claim
34 words
The protected mass of claim 1 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
Claim 12
Dependent Claim
34 words
The protected mass of claim 2 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
Claim 13
Dependent Claim
34 words
The protected mass of claim 8 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
Claim 14
Dependent Claim
34 words
The protected mass of claim 9 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
Claim 15
Independent Claim
76 words
A method of protecting a mass of wood chips comprising: providing a binder composition comprising discrete particles of cellulosic fibrous material and gelantized starch; and applying said binder composition to the exposed surfaces of the mass of wood chips and contacting said binder composition with water to form a cohesive fibrous mat of wood chips bound by said binder composition, said cohesive fibrous mat being essentially only on the surface of the mass of wood chips.
Claim 16
Independent Claim
76 words
A method of protecting a mass of wood chips comprising: providing a binder composition comprising discrete particles of cellulosic fibrous material and gelantized starch; and applying said binder composition to the exposed surfaces of the mass of wood chips and contacting said binder composition with water to form a cohesive fibrous mat of wood chips bound by said binder composition, said cohesive fibrous mat being essentially only on the surface of the mass of wood chips.
Claim 17
Dependent Claim
39 words
The method of claim 14 wherein said cellulosic fibrous material is selected from the group consisting of sawdust, ground bark, particleboard furnish, pulp mill settling pond sludge, ground paper, ground newsprint, ground paperboard, hogged corrugated clippings and ground pulp.
Claim 18
Dependent Claim
13 words
The method of claim 15 wherein said cellulosic fibrous material is ground newsprint.
Claim 19
Dependent Claim
23 words
The method of claim 15 wherein said cellulosic fibrous material is a mixture of finely ground cellulosic material and coarsely ground cellulosic material.
Claim 20
Dependent Claim
35 words
The method of claim 17 wherein said coarsely ground cellulosic material is selected from the group consisting of ground pulp, sawdust, ground bark, particleboard furnish, ground paper, ground newsprint, ground paperboard, and hogged corrugated clippings.
Claim 21
Dependent Claim
37 words
The method of claim 15 wherein said cellulosic fibrous material is a mixture comprised of ground sulfite pulp and at least one ground pulp selected from the group consisting of groundwood pulp, chemimechanical pulp and thermomechanical pulp.
Claim 22
Dependent Claim
23 words
The method of claim 15 wherein the gelatinized starch is selected from the group consisting of gelatinized corn starch and gelatinized potato starch.
Claim 23
Dependent Claim
14 words
The method of claim 15 wherein said gelatinized starch is cationic gelatinized potato starch.
Claim 24
Dependent Claim
13 words
The method of claim 16 wherein said starch is cationic gelatinized potato starch.
Claim 25
Dependent Claim
29 words
The method of claim 15 wherein said cohesive fibrous mat is formed by spraying an aqueous slurry of said cellulosic fibrous material and said starch over said exposed surface.
Claim 26
Dependent Claim
37 words
The method of claim 23 wherein said aqueous slurry further comprises spent sulfite liquor and further comprising the step of spraying a urea-formaldehyde resin over said slurry after said slurry has been sprayed over said exposed surface.
Claim 27
Dependent Claim
43 words
The method of claim 15 wherein said cohesive fibrous mat is formed by spreading a binder composition over said exposed surface and wetting said exposed surface covered with said binder composition, said binder composition comprising said cellulosic fibrous material and said gelatinized starch.
Claim 28
Dependent Claim
37 words
The method of claim 15 wherein said cohesive fibrous mat is formed by simultaneously blowing a binder composition and spraying water over said exposed surface, said binder composition comprising said cellulosic fibrous material and said gelatinized starch.
Claim 29
Dependent Claim
33 words
The method of claim 14 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
Claim 30
Dependent Claim
33 words
The method of claim 15 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
Claim 31
Dependent Claim
33 words
The method of claim 21 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
Claim 32
Dependent Claim
33 words
The method of claim 22 wherein said mass of wood chips is contained in an open transport container selected from the group consisting of open railroad cars, open trucks and open truck trailers.
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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) | 1988-01-08 | 1988-07-09 | 1989-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-08 | 1992-07-09 | 1993-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-08 | 1996-07-09 | 1997-01-08 | $7700.00 | Window Closed / Lapsed |