US4615810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating human waste by solidification
Assignee: Chem-Technics Inc
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Filing: 1985-04-04
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Granted: 1986-10-07
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Expires: 2005-04-04
Abstract
Abstract A method and apparatus for treating human waste by solidification. The method performed by the disclosed embodiment comprises receiving the waste in a toilet or receptacle, liquidizing the waste with a macerating pump, adding to the liquidized waste a solidification agent, mixing the liquidized waste and the solidification agent, and transferring the mixture of waste and solidification agent to a disposable container. The disposable container can be discarded through conventional solid waste handling procedures or discarded in sanitary landfills. The disclosed apparatus introduces a quantity of solidification chemicals into a liquidized waste provided from a holding tank of a recirculating toilet, and directs the mixture of waste and solidification agent into the disposable container.
Inventors
- 👤 Jesse R. Conner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:08
CPC Classifications
C; C02; C02F; C02F11/00; C02F11/008; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/916
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
161 words
A method of treating human wastes to render them fit for ultimate disposal in a sedentary mass, comprising the steps of: (a) receiving the wastes in a receptacle of a recirculating toilet; (b) removing and transferring the waste from the receptacle along a pathway from the receptacle to a storage chamber; (c) adding to the waste while in the pathway of solidification into a chemically and physically stable solid end product, said solidification agent having a setting time of a sufficient duration to allow removal of the mixture from the recirculating toilet; (d) mixing the waste and the solidification agent using a macerating pump prior to the waste leaving the pathway to ensure thorough dispersal of the solidification agent throughout the waste; (e) removing and transferring the mixture of waste and the solidification agent using a macerating pump from the pathway to a disposable container in the storage chamber; and (f) removing and discarding the disposable container and the contents thereof.
Claim 2
Independent Claim
161 words
A method of treating human wastes to render them fit for ultimate disposal in a sedentary mass, comprising the steps of: (a) receiving the wastes in a receptacle of a recirculating toilet; (b) removing and transferring the waste from the receptacle along a pathway from the receptacle to a storage chamber; (c) adding to the waste while in the pathway of solidification into a chemically and physically stable solid end product, said solidification agent having a setting time of a sufficient duration to allow removal of the mixture from the recirculating toilet; (d) mixing the waste and the solidification agent using a macerating pump prior to the waste leaving the pathway to ensure thorough dispersal of the solidification agent throughout the waste; (e) removing and transferring the mixture of waste and the solidification agent using a macerating pump from the pathway to a disposable container in the storage chamber; and (f) removing and discarding the disposable container and the contents thereof.
Claim 3
Dependent Claim
34 words
The method of claim 1, wherein the step of adding a solidification agent comprises adding a predetermined quantity of the solidification agent to the waste after each use of the receptacle by a person.
Claim 4
Independent Claim
178 words
A method of treating human wastes to render them fit for ultimate disposal in a sedentary mass, comprising the steps of: (a) receiving the wastes in a receptacle of a recirculating toilet; (b) liquidizing the wastes; (c) recirculating the liquidized waste through the recirculating toilet for a predetermined number of flushing cycles; (d) removing and transferring the waste from the receptacle along a pathway toward a storage chamber; (e) adding to the liquidized waste a solidification agent in a quantity sufficient to convert the waste and the solidification agent into a chemically and physically stable solid end product, said solidification agent having a setting time of a sufficient duration to allow removal of the mixture fromthe recirculating toilet; (f) mixing the liquidized waste and the solidification agent with a macerating pump to ensure thorough dispersal of the solidification agent throughout the waste; (g) removing and transferring the mixture of waste and the soliditication agent from the recirculating toilet using a macerating pump to a disposable container in the storage chamber; and (h) removing and discarding the disposable container.
Claim 5
Independent Claim
178 words
A method of treating human wastes to render them fit for ultimate disposal in a sedentary mass, comprising the steps of: (a) receiving the wastes in a receptacle of a recirculating toilet; (b) liquidizing the wastes; (c) recirculating the liquidized waste through the recirculating toilet for a predetermined number of flushing cycles; (d) removing and transferring the waste from the receptacle along a pathway toward a storage chamber; (e) adding to the liquidized waste a solidification agent in a quantity sufficient to convert the waste and the solidification agent into a chemically and physically stable solid end product, said solidification agent having a setting time of a sufficient duration to allow removal of the mixture fromthe recirculating toilet; (f) mixing the liquidized waste and the solidification agent with a macerating pump to ensure thorough dispersal of the solidification agent throughout the waste; (g) removing and transferring the mixture of waste and the soliditication agent from the recirculating toilet using a macerating pump to a disposable container in the storage chamber; and (h) removing and discarding the disposable container.
Claim 6
Dependent Claim
32 words
The method of claim 3, further comprising the step of allowing the mixture of waste and solidification agent to set to a sedentary mass prior to removing and discarding the disposable container.
Claim 7
Dependent Claim
31 words
The method of claim 3, further comprising the step of allowing the mixture of waste and solidification agent to set to a sedentary mass after removing and discarding the disposable container.
Claim 8
Dependent Claim
20 words
The method of claim 3, further comprising the step of recirculating the liquidized waste with a deodorizing or disinfecting chemical.
Claim 9
Dependent Claim
32 words
The method of claim 3, further comprising the step of transferring the waste from the receptacle to a holding tank prior to the step of adding the solidification agent to the waste.
Claim 10
Dependent Claim
22 words
The method of claim 7, wherein the step of adding the solidification agent comprises adding the solidification agent to the holding tank.
Claim 11
Dependent Claim
27 words
The method of claim 3, wherein the step of adding a solidification agent comprises adding the solidification agent to the receptacle after each use by a person.
Claim 12
Dependent Claim
22 words
The method of claim 3, wherein the step of adding a solidification agent comprises adding the solidification agent to the disposable container.
Claim 13
Dependent Claim
20 words
The method of claim 3, wherein the step of liquidizing the waste comprises pumping the waste with a macerating pump.
Claim 14
Dependent Claim
21 words
The method of claim 3, wherein the step of adding a solidification agent comprises adding the solidification agent to the receptacle.
Claim 15
Dependent Claim
20 words
The method of claim 12, wherein the solidification agent is added after a predetermined number of uses of the receptacle.
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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) | 1989-10-06 | 1990-04-07 | 1990-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-06 | 1994-04-07 | 1994-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-06 | 1998-04-07 | 1998-10-07 | $7700.00 | Window Closed / Lapsed |