US4867604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unified monitoring system for hazardous and toxic waste
Assignee: Individual
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Filing: 1986-11-06
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Granted: 1989-09-19
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Expires: 2006-11-06
Abstract
Abstract A unified system for monitoring hazardous and toxic waste is provided as a built-in three dimensional monitoring system designed and installed prior to the waste and extended as the waste is accumulated and thus provides monitoring for leaks of hazardous waste below the base, at the base and throughout the contained or uncontained mass of waste, regardless of design, construction, and function or malfunction of the mass. This replaces post depositional, random drilling to locate possible leaks from the mass of hazardous waste and provides a three dimensional unit for monitoring the deposit for the protection of the ground water and the environment.
Inventors
- 👤 Gordon L. Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:28
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; E; E02; E02B; E02B3/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
A unified monitoring system for hazardous and toxic waste and the protection of natural ground water supplies for use with subsurface and surface landfills, hillside trenches, and open cut surface mine pits for utility disposal sites, said system including a modular network of lateral perforated polyvinyl chloride (PVC) collector pipes embedded in specified fine aggregate encased in filter fabric and vertical (PVC) monitoring pipe wells, said pipes functioning as monitors under, around and throughout the waste deposits, said system being expandable as the hazardous waste deposit is enlarged and increased.
Claim 2
Dependent Claim
90 words
A unified monitoring system for hazardous and toxic waste and the protection of natural ground water supplies for use with subsurface and surface landfills, hillside trenches, and open cut surface mine pits for utility disposal sites, said system including a modular network of lateral perforated polyvinyl chloride (PVC) collector pipes embedded in specified fine aggregate encased in filter fabric and vertical (PVC) monitoring pipe wells, said pipes functioning as monitors under, around and throughout the waste deposits, said system being expandable as the hazardous waste deposit is enlarged and increased.
Claim 3
Dependent Claim
50 words
A waste monitoring system set forth in claim 1, wherein selected sections of the vertical monitoring pipe wells are perforated in rows along the pipe to vent potentially explosive gases generated by the waste, and wherein selected unperforated vertical pipes stand as pumping wells to remove leachate from the system.
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) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |