US3918404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for inhibiting generation of ammonia and other noxious gases and the prevention of odor in concentrated feedlot facilities
Assignee: Individual
•
Filing: 1974-04-11
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Granted: 1975-11-11
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Expires: 1994-04-11
Abstract
Abstract A process for inhibiting the generation of ammonia through the control of the pH in animal excreta under the slotted floors of animal enclosures and for the reduction of odors and noxious gases through the utilization of ozone as an oxidizing agent for the destruction of bacteria associated with the production of hydrogen sulphide and other objectionable products of waste decomposition.
Inventors
- 👤 Richard E Bunger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:52
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/01; A01K1/0103
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
77 words
A process for inhibiting the generation of ammonia from animal excreta through the control of the pH level of the excreta under the animal in a feedlot comprising the steps of: collecting the exereta underneath the animal in a feedlot; diluting the excreta with a chemical additive to control the pH rating of the excreta, periodically removing a part of the excreta from underneath the animal while maintaining said control of the pH rating of the excreta.
Claim 2
Dependent Claim
77 words
A process for inhibiting the generation of ammonia from animal excreta through the control of the pH level of the excreta under the animal in a feedlot comprising the steps of: collecting the exereta underneath the animal in a feedlot; diluting the excreta with a chemical additive to control the pH rating of the excreta, periodically removing a part of the excreta from underneath the animal while maintaining said control of the pH rating of the excreta.
Claim 3
Dependent Claim
22 words
The process for inhibiting the generation of ammonia set forth in claim 1 wherein: the excreta is kept at an acidity condition.
Claim 4
Dependent Claim
29 words
The process for inhibiting the generation of ammonia set forth in claim 1 wherein: the excreta is kept at an acidity condition between a 5.5 and 6 pH level.
Claim 5
Dependent Claim
20 words
The process for inhibiting the generation of ammonia set forth in claim 1 wherein: the chemical additive comprises an acid.
Claim 6
Dependent Claim
23 words
The process for inhibiting the generation of ammonia set forth in claim 1 wherein: said chemical additive comprises a solution of sulphuric acid.
Claim 7
Dependent Claim
23 words
The process for inhibiting the generation of ammonia set forth in claim 1 wherein: said chemical additive comprises a solution of hydrochloric acid.
Claim 8
Dependent Claim
31 words
The process for inhibiting the generation of ammonia set forth in claim 1 in further combination with the step of: diluting the excreta with ozone to control bacteria in the excreta.
Claim 9
Dependent Claim
46 words
The process for inhibiting the generation of ammonia set forth in claim 1 in further combination with the step of: mixing ozone with said chemical additive to control bacteria associated with the generation of other gases produced by said excreta during its aging in the feedlot.
Claim 10
Dependent Claim
99 words
A process for inhibiting the generation of ammonia and other noxious gases from animal excreta through the control of the pH level of the excreta under the animal in a pit in the floor of a feedlot comprising the steps of: collecting the manure in the pit underneath the animal in a feedlot, diluting the excreta with a chemical additive to control the pH rating of the excreta, and periodically scraping the pit to remove at least a part of the slurry of the excreta from the pit while maintaining said control of the pH rating of the excreta.
Claim 11
Dependent Claim
99 words
A process for inhibiting the generation of ammonia and other noxious gases from animal excreta through the control of the pH level of the excreta under the animal in a pit in the floor of a feedlot comprising the steps of: collecting the manure in the pit underneath the animal in a feedlot, diluting the excreta with a chemical additive to control the pH rating of the excreta, and periodically scraping the pit to remove at least a part of the slurry of the excreta from the pit while maintaining said control of the pH rating of the excreta.
Claim 12
Dependent Claim
78 words
The process for inhibiting the generation of ammonia and other noxious gases from animal excreta set forth in claim 9 in further combination with the step of: maintaining a bed of liquid slurry of the excreta in the pit having a pH rating of an acidity condition at all times, and scraping the pit periodically to remove excess excreta therefrom while maintaining at all times the pH rating of the excreta in the liquid slurry of the pit.
Claim 13
Dependent Claim
44 words
The process for inhibiting the generation of ammonia and other noxious gases from animal excreta set forth in claim 10 in further combination with the step of: adding ozone to the chemical additive prior to diluting the excreta for controlling bacteria in the excreta.
Claim 14
Dependent Claim
72 words
A process for inhibiting the generation of noxious gases from animal excreta through the control of the excreta under the animal in a feedlot comprising the steps of: collecting the manure underneath the animal in a feedlot, diluting the excreta with ozone to control bacteria growth in the excreta, and periodically removing a part of the excreta from underneath the animal while maintaining said control of the bacteria growth of the excreta.
Claim 15
Dependent Claim
72 words
A process for inhibiting the generation of noxious gases from animal excreta through the control of the excreta under the animal in a feedlot comprising the steps of: collecting the manure underneath the animal in a feedlot, diluting the excreta with ozone to control bacteria growth in the excreta, and periodically removing a part of the excreta from underneath the animal while maintaining said control of the bacteria growth of the excreta.
Claim 16
Dependent Claim
79 words
Apparatus for collecting and processing animal waste comprising: a pen for containing livestock having a slotted floor, a trough arranged below said floor for receiving animal waste dropped therein by the animals housed in said pen, means for diluting the animal waste with a chemical additive for controlling a pH rating of the waste, and means for periodically removing the animal waste from said trough while maintaining a liquid slurry at all times at the bottom of said trough.
Claim 17
Dependent Claim
79 words
Apparatus for collecting and processing animal waste comprising: a pen for containing livestock having a slotted floor, a trough arranged below said floor for receiving animal waste dropped therein by the animals housed in said pen, means for diluting the animal waste with a chemical additive for controlling a pH rating of the waste, and means for periodically removing the animal waste from said trough while maintaining a liquid slurry at all times at the bottom of said trough.
Claim 18
Dependent Claim
14 words
The apparatus set forth in claim 13 wherein: said chemical additive comprises an acid.
Claim 19
Dependent Claim
28 words
The apparatus set forth in claim 13 wherein: said chemical additive comprise an acid solution for maintaining the diluted animal waste at a pH level less than 7.
Claim 20
Dependent Claim
18 words
The apparatus set forth in claim 13 wherein: said chemical additive comprises an acid solution mixed with ozone.
Claim 21
Dependent Claim
17 words
The apparatus set forth in claim 13 wherein: said chemical additive comprises a solution of sulphuric acid.
Claim 22
Dependent Claim
17 words
The apparatus set forth in claim 13 wherein: said chemical additive comprises a solution of hydrochloric acid.
Claim 23
Dependent Claim
149 words
Apparatus for collecting and processing animal waste comprising: a pen for containing livestock having a slotted floor, a trough arranged below said floor for receiving animal waste dropped therein by the animals housed in said pen, means for periodically removing the animal waste from said trough to a holding tank, a holding tank for diluting the waste, separating means for removing the solids from the liquids of the diluted waste received from said holding tank, press means for receiving and compressing the solids from said separating means, drying means for receiving the solids from said press means for pasteurization thereof, and means for mixing an acid with at least a part of the liquids received from said separating means and returning it to said trough below said floor for maintaining a slurry of the animal waste at an acid condition for suppressing the generation of ammonia in the waste.
Claim 24
Dependent Claim
149 words
Apparatus for collecting and processing animal waste comprising: a pen for containing livestock having a slotted floor, a trough arranged below said floor for receiving animal waste dropped therein by the animals housed in said pen, means for periodically removing the animal waste from said trough to a holding tank, a holding tank for diluting the waste, separating means for removing the solids from the liquids of the diluted waste received from said holding tank, press means for receiving and compressing the solids from said separating means, drying means for receiving the solids from said press means for pasteurization thereof, and means for mixing an acid with at least a part of the liquids received from said separating means and returning it to said trough below said floor for maintaining a slurry of the animal waste at an acid condition for suppressing the generation of ammonia in the waste.
Claim 25
Dependent Claim
13 words
The apparatus set forth in claim 19 wherein: said acid comprises sulphuric acid.
Claim 26
Dependent Claim
13 words
The apparatus set forth in claim 19 wherein: said acid comprises hydrochloric acid.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |