Patent US3876157A successfully refreshed from Google Patents.
US3876157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating organic and inorganic waste material
Assignee: Individual
•
Filing: 1973-01-18
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Granted: 1975-04-08
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Expires: 1993-01-18
Abstract
Abstract Fibrous material having utility in the production of numerous and differing products is produced from refuse by a continuous process after separation and removal of undesirable constituents such as dirt, glass, ferrous and non-ferrous metals from the refuse. Individual remaining particles are then reduced in size and suspended in a water slurry. The slurry is then subjected to centrifugal acceleration to remove any glass, metallic, or other relatively dense particles that may remain therein. The resulting slurry is sterilized by continuous cooking to thermally destroy all major pathogens and/or parasitic organisms. The solids content is then increased and additives introduced into and mixed with the solids following which the mixture of solids and additives is rolled to produce granules of a desired size and the resulting product is dried.
Inventors
- 👤 Ray G Mcintire
- 👤 David M Cold
- 👤 Arthur M Moler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:15
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; Y; Y10; Y10S; Y10S241/00; Y10S241/38
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
A CONTINUOUS PROCESS FOR CONVERTING REFUSE INTO A DISPOSABLE PULVERULENT MATERIAL COMPRISING THE STEPS OF REMOVING METAL AND GLASS REFUSE CONTAINING PULVERULENT MATERIALS, MIXING THE RESULTING PRODUCT WITH WATER TO FORM A SLURRY HAVING A SOLIDS CONTENT OF ABOUT 50%, CAUSING A CONTINUOUS INFLOW OF SAID SLURRY INTO A RETENTION VESSEL, RETAINING SAID SLURRY WITHIN SAID VESSEL FOR A PERIOD OF TIME RANGING FROM ABOUT 45 MINUTES TO ABOUT 2 HOURS AND
Claim 2
Dependent Claim
72 words
A CONTINUOUS PROCESS FOR CONVERTING REFUSE INTO A DISPOSABLE PULVERULENT MATERIAL COMPRISING THE STEPS OF REMOVING METAL AND GLASS REFUSE CONTAINING PULVERULENT MATERIALS, MIXING THE RESULTING PRODUCT WITH WATER TO FORM A SLURRY HAVING A SOLIDS CONTENT OF ABOUT 50%, CAUSING A CONTINUOUS INFLOW OF SAID SLURRY INTO A RETENTION VESSEL, RETAINING SAID SLURRY WITHIN SAID VESSEL FOR A PERIOD OF TIME RANGING FROM ABOUT 45 MINUTES TO ABOUT 2 HOURS AND
Claim 3
Dependent Claim
18 words
Process according to claim 1 and additionally including the step of introducing into said slurry a nutrimental material.
Claim 4
Dependent Claim
20 words
Process according to claim 2 and additionally granulating the mixture of said additive and the solids content of said slurry.
Claim 5
Dependent Claim
22 words
Process according to claim 3 and additionally including the step of removing the moisture from the mixture resulting from said granulating step.
Claim 6
Dependent Claim
30 words
Process according to claim 4 including the additional steps of size classifying the resulting granules, removing undesired granules, and reintroducing remaining granules into the process prior to said granulating step.
Claim 7
Dependent Claim
30 words
Process according to claim 1 and including, following the removing step and prior to the pulverizing step, the additional step of reducing to a preselected size the remaining pulverulent material.
Claim 8
Dependent Claim
21 words
Process according to claim 1 and additionally including the step of subjecting said slurry to density classification and remaining undesired particles.
Claim 9
Dependent Claim
39 words
Process according to claim 1 and also including, after said classification and retaining step, the additional step of removing some of the water from said slurry and reintroducing said removed water into the process at said slurry forming step.
Claim 10
Dependent Claim
37 words
Process according to claim 1 and also including, prior to said classification and retaining step, removal of some of the water from said slurry and reintroducing said removed water into the process at said slurry forming step.
Claim 11
Dependent Claim
34 words
Process according to claim 1 and additionally including, removing water from said slurry before and after said classification and retaining step and reintroducing said removed water into the system at said slurry forming step.
References Cited (Backward Citations)
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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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |