US4421858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for determining the concentration of selected ingredients in animal feeds
Assignee: CAMBRIDGE PRODUCTS Ltd PO BOX 1622 SSS SPRINGFIELD MO 68502
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Filing: 1981-07-10
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Granted: 1983-12-20
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Expires: 2001-07-10
Abstract
Abstract The present invention describes a method where, by using gentian violet as a tracer substance, the concentration of one or more selected components or factors of a complete animal feedstuff may be monitored throughout the life of the feed whether at the mill, in transit or at the place of its end use. In one embodiment, the method may be used to determine quickly whether any separation of components has occurred thereby destroying the homogeneity of the feedstuff and potentially endangering the animals to which the feedstuff is provided.
Inventors
- 👤 Dennis E. Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:02
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/02; G01N33/12; Y; Y10; Y10S; Y10S426/00; Y10S426/807; Y10T; Y10T436/00; Y10T436/13; Y10T436/17; Y10T436/173845; Y10T436/174614; Y10T436/25; Y10T436/25375
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
227 words
A method for measuring the concentration of a selected finely-divided, dry component of an animal feedstuff comprising the steps performed in the following order; (a) dispersing gentian violet on a finely-divided carrier, the carrier particles being of approximately the same size as those of the selected components; (b) admixing thoroughly an amount of gentian violet bearing carrier to the selected animal feedstuff component to label the component; (c) admixing the labeled component into the animal feedstuff to form a complete animal feedstuff, the quanitity of gentian violet being sufficient to provide, upon complete mixture, a known concentration in the resultant animal feedstuff in the range from about 3 to about 16 parts per million; (d) selecting a sample of the resultant animal feedstuff and placing it in a container; (e) adding a sufficient amount of a solvent for gentian violet to cover the sample; (f) agitating the immersed sample sufficiently to extract the gentian violet from the sample; (g) separating the gentian violet and solvent from the solid portion of the sample; and (h) comparing visually the color of the gentian violet solution of step (g) to a suitagle standard for the known concentration to ascertain the concentration of gentian violet in the sample whereby the concentration of the selected component in the resultant feedstuff may be measured concomitantly at the situs of the resultant animal feedstuff.
Claim 2
Independent Claim
227 words
A method for measuring the concentration of a selected finely-divided, dry component of an animal feedstuff comprising the steps performed in the following order; (a) dispersing gentian violet on a finely-divided carrier, the carrier particles being of approximately the same size as those of the selected components; (b) admixing thoroughly an amount of gentian violet bearing carrier to the selected animal feedstuff component to label the component; (c) admixing the labeled component into the animal feedstuff to form a complete animal feedstuff, the quanitity of gentian violet being sufficient to provide, upon complete mixture, a known concentration in the resultant animal feedstuff in the range from about 3 to about 16 parts per million; (d) selecting a sample of the resultant animal feedstuff and placing it in a container; (e) adding a sufficient amount of a solvent for gentian violet to cover the sample; (f) agitating the immersed sample sufficiently to extract the gentian violet from the sample; (g) separating the gentian violet and solvent from the solid portion of the sample; and (h) comparing visually the color of the gentian violet solution of step (g) to a suitagle standard for the known concentration to ascertain the concentration of gentian violet in the sample whereby the concentration of the selected component in the resultant feedstuff may be measured concomitantly at the situs of the resultant animal feedstuff.
Claim 3
Dependent Claim
19 words
A method according to claim 1, wherein the selected component is a premix of supplemental nutritional and medicinal values.
Claim 4
Dependent Claim
13 words
A method according to claim 2, wherein the solvent is an organic solvent.
Claim 5
Dependent Claim
29 words
A method according to claim 3, wherein the concentration of gentian violet in the complete animal feedstuff is in the range from about 4 to 10 parts per million.
Claim 6
Dependent Claim
37 words
A method according to claim 4, wherein the concentration of gentian violet in the complete animal feedstuff is approximately 4 parts per million and the organic solvent is selected from the group consisting of alcohols and ketones.
Claim 7
Dependent Claim
41 words
A method according to claim 4, wherein the separation of the gentian violet solution is accomplished by allowing the sample to stand for a period sufficient to permit solids to settle out and decanting the gentian violet solution from the sample.
Claim 8
Dependent Claim
18 words
A method according to claim 4, wherein the separation of the gentian violet solution is accomplished by filtration.
Claim 9
Dependent Claim
56 words
A method according to claim 2, wherein the method includes the further steps of selecting a plurality of samples from the complete animal feedstuff, ascertaining the concentration of gentian violet in each sample separately, and comparing the concentrations of gentian violet to ascertain the homogeneity of concentration of the selected component in the complete animal feedstuff.
Claim 10
Dependent Claim
46 words
A method according to claim 2, wherein the method further comprises the steps of selecting a plurality of separate samples of the complete animal feedstuff and mixing thoroughly the plurality of samples to eliminate any localized variations in concentration of the premix in the animal feedstuff.
Claim 11
Dependent Claim
13 words
A method according to claim 9, wherein at least three samples are selected.
Claim 12
Independent Claim
137 words
A method for measuring the concentration of a finely-divided, dry premix in an animal feedstuff comprising the steps performed in the following order; (a) dispersing an amount of gentian violet onto a carrier compatible with the animal feedstuff, which carrier is sufficiently finely divided so as to approximate the size of particles in the premix; (b) admixing thoroughly an amount of the gentian violet labeled carrier with the premix to label the premix; (c) admixing the labeled premix into the animal feedstuff to form a complete animal feedstuff, the amount of gentian violet being sufficient to provide, upon complete mixture, a known concentration in the resultant complete animal feedstuff in the range from about 4 to about 10 parts per million; (d) selecting a sample of the resultant complete animal feedstuff and placing it in a container;
Claim 13
Independent Claim
137 words
A method for measuring the concentration of a finely-divided, dry premix in an animal feedstuff comprising the steps performed in the following order; (a) dispersing an amount of gentian violet onto a carrier compatible with the animal feedstuff, which carrier is sufficiently finely divided so as to approximate the size of particles in the premix; (b) admixing thoroughly an amount of the gentian violet labeled carrier with the premix to label the premix; (c) admixing the labeled premix into the animal feedstuff to form a complete animal feedstuff, the amount of gentian violet being sufficient to provide, upon complete mixture, a known concentration in the resultant complete animal feedstuff in the range from about 4 to about 10 parts per million; (d) selecting a sample of the resultant complete animal feedstuff and placing it in a container;
Claim 14
Dependent Claim
120 words
(e) adding a predetermined amount of an organic solvent for gentian violet selected from the group consisting of alcohols and ketones to the sample; (f) agitating the immersed sample sufficiently to extract the gentian violet from the sample; (g) allowing the sample to stand for a period sufficient to permit solids to settle out; (h) decanting the gentian violet and solvent from the sample; and (i) comparing visually the color of the gentian violet solution of step to a suitable standard for the known concentrations to ascertain the concentration of gentian violet in the sample whereby the concentration of the premix component in the resultant complete animal feedstuff may be measured concomitantly at the situs of the resultant animal feedstuff.
Claim 15
Dependent Claim
120 words
(e) adding a predetermined amount of an organic solvent for gentian violet selected from the group consisting of alcohols and ketones to the sample; (f) agitating the immersed sample sufficiently to extract the gentian violet from the sample; (g) allowing the sample to stand for a period sufficient to permit solids to settle out; (h) decanting the gentian violet and solvent from the sample; and (i) comparing visually the color of the gentian violet solution of step to a suitable standard for the known concentrations to ascertain the concentration of gentian violet in the sample whereby the concentration of the premix component in the resultant complete animal feedstuff may be measured concomitantly at the situs of the resultant animal feedstuff.
Claim 16
Dependent Claim
68 words
A method according to claim 11, wherein the method is utilized to monitor the homogeneity of concentration of the premix and includes the further steps of selecting a plurality of samples from the complete animal feedstuff, ascertaining the concentration of gentian violet in each sample separately, and comparing the concentrations of gentian violet to ascertain the homogeneity of concentration of the selected component in the complete animal feedstuff.
Claim 17
Dependent Claim
46 words
A method according to claim 11, wherein the method further comprises the steps of selecting a plurality of separate samples of the complete animal feedstuff and mixing thoroughly the plurality of samples to eliminate any localized variations in concentration of the premix in the animal feedstuff.
Claim 18
Dependent Claim
13 words
A method according to claim 13, wherein at least three samples are selected.
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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |