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US4585753A
Expired / Lapsed
US
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Liquid charcoal and a method of preparing the same
Assignee: Individual
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Filing: 1984-12-20
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Granted: 1986-04-29
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Expires: 2004-12-20
Abstract
Abstract An aqueous suspension of activated charcoal provides an inexpensive method for detoxifying large areas of soil and turf contaminated with organic pesticides.
Inventors
- 👤 Aaron Scott
- 👤 Barbara F. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:43
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/32; B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; Y; Y10; Y10S; Y10S47/00; Y10S47/10; Y10S516/00; Y10S516/01; Y10S588/00; Y10S588/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
61 words
An aqueous suspension of activated charcoal for use as an agricultural spray consisting of: (a) water; (b) activated charcoal having a range of powdered, activated charcoal from 2.00 to 2.25 pounds per gallon of aqueous suspension; (c) a wetting and suspending agent consisting of octylphenoxypolyethoxy ethanol, having a range of 8.96-9.10 ounces per gallon of aqueous suspension; (d) a defoaming agent.
Claim 2
Dependent Claim
61 words
An aqueous suspension of activated charcoal for use as an agricultural spray consisting of: (a) water; (b) activated charcoal having a range of powdered, activated charcoal from 2.00 to 2.25 pounds per gallon of aqueous suspension; (c) a wetting and suspending agent consisting of octylphenoxypolyethoxy ethanol, having a range of 8.96-9.10 ounces per gallon of aqueous suspension; (d) a defoaming agent.
Claim 3
Dependent Claim
27 words
An aqueous suspension of activated charcoal according to claim 1, wherein the defoaming agent is polydimethylsiloxane having a range of 0.5-0.75 ounces per gallon of aqueous suspension.
Claim 4
Dependent Claim
78 words
An aqueous suspension of activated charcoal for use as an agricultural spray consisting of: (a) water; (b) activated charcoal having a range of powdered, activated charcoal from 2.00 to 2.25 pounds per gallon of aqueous suspension; (c) octylphenoxypolyethoxy ethanol, having a range of 8.96 to 9.10 ounces per gallon of aqueous suspension, as a wetting and suspending agent; and (d) polydimethylsiloxane having a range of 0.5 to 0.75 ounces per gallon of aqueous suspension as a defoaming agent.
Claim 5
Dependent Claim
78 words
An aqueous suspension of activated charcoal for use as an agricultural spray consisting of: (a) water; (b) activated charcoal having a range of powdered, activated charcoal from 2.00 to 2.25 pounds per gallon of aqueous suspension; (c) octylphenoxypolyethoxy ethanol, having a range of 8.96 to 9.10 ounces per gallon of aqueous suspension, as a wetting and suspending agent; and (d) polydimethylsiloxane having a range of 0.5 to 0.75 ounces per gallon of aqueous suspension as a defoaming agent.
Claim 6
Independent Claim
113 words
A method of suspending activated charcoal in water, comprising the following steps: (a) mixing together a defoaming agent, approximately one-fourth of the total amount to be used of a wetting and suspending agent, and an amount of water equal to approximately 78ths of the final volume of suspension; (b) continuously agitating the combination of ingredients, throughout the mixing process; (c) adding powdered activated charcoal, in an amount from 2.00 to 2.25 pounds per gallon of aqueous suspension; (d) adding the balance of the wetting and suspending agent; (e) adding the balance of water required to make the final volume; and (f) continuing the agitation of the resulting suspension for at least 30 minutes.
Claim 7
Independent Claim
113 words
A method of suspending activated charcoal in water, comprising the following steps: (a) mixing together a defoaming agent, approximately one-fourth of the total amount to be used of a wetting and suspending agent, and an amount of water equal to approximately 78ths of the final volume of suspension; (b) continuously agitating the combination of ingredients, throughout the mixing process; (c) adding powdered activated charcoal, in an amount from 2.00 to 2.25 pounds per gallon of aqueous suspension; (d) adding the balance of the wetting and suspending agent; (e) adding the balance of water required to make the final volume; and (f) continuing the agitation of the resulting suspension for at least 30 minutes.
Claim 8
Dependent Claim
37 words
A method of suspending activated charcoal in water, according to claim 4 wherein the step of adding the wetting and suspending agent includes adding octylphenoxypolyethocy ethanol having a range of 8.96-9.10 ounces per gallon of aqueous suspension.
Claim 9
Independent Claim
121 words
A method of preparing an aqueous suspension of activated charcoal for use as an agricultural spray, comprising the following steps: (a) mixing together water and octylphenoxypolyethoxy ethanol having a range of 2.5 to 2.6 ounces per gallon of aqueous suspension; (b) agitating the ingredients and maintaining agitation throughout the mixing process; (c) adding polydimethylsiloxane, having a range of 0.5 to 0.75 ouces per gallon of aqueous suspension; (d) gradually adding from 2.00 to 2.25 pounds of activated charcoal per gallon of aqueous suspension; (e) adding additional octylphenoxypolyethoxy ethanol from 6.46 to 6.75 ounces per gallon of aqueous suspension; (f) adding sufficient water, to attain the above-specified concentrations of ingredients; and (g) agitating the resulting aqueous suspension for at least 30 minutes.
Claim 10
Independent Claim
121 words
A method of preparing an aqueous suspension of activated charcoal for use as an agricultural spray, comprising the following steps: (a) mixing together water and octylphenoxypolyethoxy ethanol having a range of 2.5 to 2.6 ounces per gallon of aqueous suspension; (b) agitating the ingredients and maintaining agitation throughout the mixing process; (c) adding polydimethylsiloxane, having a range of 0.5 to 0.75 ouces per gallon of aqueous suspension; (d) gradually adding from 2.00 to 2.25 pounds of activated charcoal per gallon of aqueous suspension; (e) adding additional octylphenoxypolyethoxy ethanol from 6.46 to 6.75 ounces per gallon of aqueous suspension; (f) adding sufficient water, to attain the above-specified concentrations of ingredients; and (g) agitating the resulting aqueous suspension for at least 30 minutes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |