US3875317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste conversion process
Assignee: Individual
•
Filing: 1971-09-17
•
Granted: 1975-04-01
•
Expires: 1991-09-17
Abstract
Abstract A process for converting stable waste (manure and straw) and grandstand waste (principally paper) into useful products such as molasses, regular and activated charcoal, gypsum, acetic acid, furfural produces and fertilizer.
Inventors
- 👤 Stuart R Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:57
CPC Classifications
C; C05; C05F; C05F3/00; A; A23; A23K; A23K10/00; A23K10/20; A23K10/26; A23K10/30; A23K10/32; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02P; Y02P20/00; Y02P20/141; Y02P20/145
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
14 words
A METHOD OF CONVERTING WASTE OF STABLE MANURE AND STRAW COMPRISING THE STEPS OF:
Claim 2
Independent Claim
14 words
A METHOD OF CONVERTING WASTE OF STABLE MANURE AND STRAW COMPRISING THE STEPS OF:
Claim 3
Dependent Claim
12 words
SEPARATING SOLUBLE CONTENTS OF MANURE FROM STRAW FOR SUBSEQUENT UTILIZATION AS FERTILIZER
Claim 4
Dependent Claim
12 words
SEPARATING SOLUBLE CONTENTS OF MANURE FROM STRAW FOR SUBSEQUENT UTILIZATION AS FERTILIZER
Claim 5
Dependent Claim
10 words
CHOPPING AND WASHING THE STRAW AND INSOLUBLE CONTENTS OF MANURE,
Claim 6
Dependent Claim
10 words
CHOPPING AND WASHING THE STRAW AND INSOLUBLE CONTENTS OF MANURE,
Claim 7
Dependent Claim
10 words
chopping and washing the straw and insoluble contents of manure,
Claim 8
Dependent Claim
10 words
chopping and washing the straw and insoluble contents of manure,
Claim 9
Dependent Claim
27 words
The method of claim 1 wherein hot steam is used to pressurize said container and the pressure is suddenly reduced by opening a quick-release valve connected thereto.
Claim 10
Dependent Claim
29 words
SUBJECTING SAID STRAW AND MANURE INSOLUBLE CONTENTS TO ACID, TEMPERATURE AND PRESSURE FOR HYDROLYSIS THEREOF IN A PRESSURE CONTAINER FOR CONVERSION THERROF INTO A SUGAR SOLUTION AND RESIDUE, AND
Claim 11
Dependent Claim
29 words
SUBJECTING SAID STRAW AND MANURE INSOLUBLE CONTENTS TO ACID, TEMPERATURE AND PRESSURE FOR HYDROLYSIS THEREOF IN A PRESSURE CONTAINER FOR CONVERSION THERROF INTO A SUGAR SOLUTION AND RESIDUE, AND
Claim 12
Dependent Claim
30 words
subjecting said straw and manure insoluble contents to acid, temperature and pressure for hydrolysis thereof in a pressure container for conversion thereof into a sugar solution and a residue, and
Claim 13
Dependent Claim
30 words
subjecting said straw and manure insoluble contents to acid, temperature and pressure for hydrolysis thereof in a pressure container for conversion thereof into a sugar solution and a residue, and
Claim 14
Dependent Claim
26 words
The method in claim 1 wherein the cell structure of the residue mass is fractured by suddenly expelling said residue from said container by steam pressure.
Claim 15
Dependent Claim
17 words
quickly reducing the pressure on said residue to permit rapid expansion thereof into a lower density mixture.
Claim 16
Dependent Claim
17 words
quickly reducing the pressure on said residue to permit rapid expansion thereof into a lower density mixture.
Claim 17
Dependent Claim
16 words
QUICKLY REDUCING THE PRESSURE ON SAID RESIDUE TO PERMIT RAPID EXPANSION THEREOF A LOW DENSITY MIXTURE.
Claim 18
Dependent Claim
16 words
QUICKLY REDUCING THE PRESSURE ON SAID RESIDUE TO PERMIT RAPID EXPANSION THEREOF A LOW DENSITY MIXTURE.
Claim 19
Dependent Claim
18 words
The method in claim 1 wherein the temperature is about 300*F. and the pressure is about 100 psi.
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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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |