US3882799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste disposal system and method
Assignee: THERMASAN CORP
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Filing: 1973-05-31
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Granted: 1975-05-13
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Expires: 1993-05-31
Abstract
Abstract Apparatus for and method of disposing of liquid and organic waste material through the exhaust system of an engine wherein the waste material is collected in a holding tank from which it is metered by a pump into the exhaust gases from the engine only under controlled conditions. A plurality of pump control means are disclosed for operating the pump only in accordance with the prescribed conditions, and waste injection apparatus is disclosed for injecting the waste material directly into the exhaust pipe of the engine.
Inventors
- 👤 Charles L Sargent
- 👤 John A Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:27
CPC Classifications
B; B60; B60R; B60R15/00; B60R15/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
In a waste disposal system for use with a fuel burning engine that discharges waste heated gases through an exhaust pipe, said exhaust pipe having an aperture in the wall thereof, waste injection apparatus comprising a screen in the form of a sleeve with an open end extending diametrically into said pipe through said aperture, a waste inlet conduit extending through said aperture into said screen and terminating a remote distance from the open end of the screen, and means for feeding waste material at a controlled rate through said waste inlet conduit.
Claim 2
Dependent Claim
93 words
In a waste disposal system for use with a fuel burning engine that discharges waste heated gases through an exhaust pipe, said exhaust pipe having an aperture in the wall thereof, waste injection apparatus comprising a screen in the form of a sleeve with an open end extending diametrically into said pipe through said aperture, a waste inlet conduit extending through said aperture into said screen and terminating a remote distance from the open end of the screen, and means for feeding waste material at a controlled rate through said waste inlet conduit.
Claim 3
Dependent Claim
38 words
In a waste disposal system that includes the waste injection apparatus defined in claim 1, wherein said open end of the sleeve terminates adjacent to but spaced from the wall of the pipe diametrically opposite from said aperture.
Claim 4
Dependent Claim
30 words
In a waste disposal system that includes the waste injection apparatus defined in claim 2, wherein said waste inlet conduit terminates before reaching the central axis of said exhaust pipe.
Claim 5
Dependent Claim
22 words
In a waste disposal system that includes the waste injection apparatus defined in claim 3, wherein said screen is approximately 30 mesh.
Claim 6
Dependent Claim
44 words
In a waste disposal system that includes the waste injection apparatus defined in claim 1, wherein said waste inlet conduit is supported in a saddle member mounted on the external side of said exhaust pipe, and clamp means retains said saddle on said pipe.
Claim 7
Independent Claim
83 words
A method of disposing of liquid and organic waste material through the exhaust system of a fuel burning engine comprising the steps of feeding the waste material at a controlled rate into a generally annular screen extending transversely of the path of flow of the engine exhaust gases, and passing the exhaust gases through the screen at a rate sufficient to reduce the particle size of the waste material and at a temperature sufficient to vaporize the liquid content of the waste material.
Claim 8
Independent Claim
83 words
A method of disposing of liquid and organic waste material through the exhaust system of a fuel burning engine comprising the steps of feeding the waste material at a controlled rate into a generally annular screen extending transversely of the path of flow of the engine exhaust gases, and passing the exhaust gases through the screen at a rate sufficient to reduce the particle size of the waste material and at a temperature sufficient to vaporize the liquid content of the waste material.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |