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US3718451A
Expired / Lapsed
US
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Method of making fertilizer from chicken manure
Assignee: Individual
•
Filing: 1971-07-07
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Granted: 1973-02-27
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Expires: 1991-07-07
Abstract
Abstract A fertilizer and soil conditioner material is prepared from chicken manure, normally containing 80-90 percent water, by mixing the manure with a small amount of comminuted ureaformaldehyde resin foam sufficient to absorb the water, fermenting the manure while mixed with the foamed resin, and reducing the water content to not much more than 40 percent. The product is a practically odorless humus-like substance rich in microbial cells.
Inventors
- 👤 H Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:35
CPC Classifications
C; C05; C05C; C05C9/00; C05C9/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
26 words
A method as set forth in claim 1, which further comprises drying the fermented mixture to a water content of not substantially more than 40 percent.
Claim 2
Dependent Claim
23 words
said resin containing an amount of free formaldehyde sufficient to suppress the growth of microorganisms on said foamed resin prior to Said mixing,
Claim 3
Dependent Claim
60 words
said manure containing an amount of ammonia sufficient to bind said free formaldehyde and to permit growth of microorganisms present in the mixture obtained; and (b) holding the mixture at a temperature above 15*C and below 100*C under aerobic conditions for a time sufficient to permit fermentation of said manure until the fermented mixture is substantially free of manure odor.
Claim 4
Dependent Claim
24 words
A method as set forth in claim 2, wherein said mixture is confined in a substantially closed chamber during said fermenting and said drying.
Claim 5
Dependent Claim
14 words
A method as set forth in claim 1, wherein said manure is chicken manure.
Claim 6
Dependent Claim
24 words
A method as set forth in claim 4, wherein the amount of said water in said chicken manure is approximately 80 to 90 percent.
Claim 7
Dependent Claim
80 words
A method as set forth in claim 4, wherein a small amount of said fermented mixture is added to another batch of a mixture of said chicken manure with an amount of foamed urea-formaldehyde resin not substantially more than five percent of the weight of said batch, on a dry basis, and said other batch having said fermented mixture added thereto is held at a temperature above 15*C and below 100*C under aerobic conditions until substantially free from manure odor.
Claim 8
Dependent Claim
28 words
A method as set forth in claim 6, wherein said small amount is approximately one part by weight of said fermented mixture per 1000 parts of said batch.
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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |