US5089228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for sterilizing and disposing of infectious waste
Assignee: JOHN CHAHINE
•
Filing: 1990-04-19
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Granted: 1992-02-18
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Expires: 2010-04-19
Abstract
Abstract A method for sterilizing infectious waste includes placing the waste in a disposal apparatus which has an isolated volume for holding the waste. A dry granulated medium which has a disinfectant constituent is also placed within the isolated volume along with the waste. When the disposal apparatus is activated, an atomized mist is introduced into the volume and the waste, the medium, and the moisture in the mist are thoroughly blended together. The resulting destroyed waste is thoroughly moistened with the disinfectant solution which is formed by the mist and the disinfectant constituents of the medium. Then, the moistened, destroyed waste is heated to a predetermined temperature for a predetermined time to ensure efficacious sterilization of the waste.
Inventors
- 👤 Robert S. Meijer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:07
CPC Classifications
B; B09; B09B; B09B3/00; B09B3/30; B09B3/35; A; A61; A61L; A61L11/00; A61L2/00; A61L2/02; A61L2/04; A61L2/06; A61L2/16; A61L2/18; A61L2/22; B02; B02C; B02C19/00; B02C19/0056; B02C19/0075; B09B3/38; B09B3/70; B09B2101/00; B09B2101/65; Y; Y10; Y10S; Y10S241/00; Y10S241/38; Y10S241/606; Y10S423/00; Y10S423/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
A method for disinfecting an infectious waste in an isolated volume, which comprises the steps of: placing said waste in a first compartment of a mechanically destructible bag; placing a solid medium having disinfectant constituents into a second compartment of said bag; sealing said second compartment to prevent communication between said first and second compartments; placing said bag into said isolated volume; mechanically destroying said bag to commingle said medium and said waste thereby forming a treatment mixture; wetting said treatment mixture with an aqueous solvent heated to a predetermined temperature; dissolving said medium in said solvent to form a treatment solution; and maintaining said waste in contact with said treatment solution for a predetermined time period.
Claim 2
Independent Claim
117 words
A method for disinfecting an infectious waste in an isolated volume, which comprises the steps of: placing said waste in a first compartment of a mechanically destructible bag; placing a solid medium having disinfectant constituents into a second compartment of said bag; sealing said second compartment to prevent communication between said first and second compartments; placing said bag into said isolated volume; mechanically destroying said bag to commingle said medium and said waste thereby forming a treatment mixture; wetting said treatment mixture with an aqueous solvent heated to a predetermined temperature; dissolving said medium in said solvent to form a treatment solution; and maintaining said waste in contact with said treatment solution for a predetermined time period.
Claim 3
Dependent Claim
46 words
A method for disinfecting an infectious waste in an isolated volume as recited in claim 1 wherein said predetermined temperature is greater than or equal to one hundred sixty degrees (160°) F. and said predetermined time period is greater than or equal to thirty (30) seconds.
Claim 4
Dependent Claim
43 words
A method for disinfecting an infectious waste in an isolated volume as recited in claim 1 wherein said medium further comprises a pigment constituent and said method further comprises the step of staining said waste with said pigment constituent during said destroying step.
Claim 5
Dependent Claim
23 words
A method for disinfecting an infectious waste in an isolated volume as recited in claim 1 wherein said disinfectant constituents comprise sodium hypochlorite.
Claim 6
Dependent Claim
22 words
A method for disinfecting an infectious waste in an isolated volume as recited in claim 1 wherein said bag is mechanically destroyed.
Claim 7
Dependent Claim
23 words
A method for disinfecting an infectious waste in an isolated volume as recited in claim 5 wherein said bag is destroyed by blending.
References Cited (Backward Citations)
US4822513A
Cited
US4923677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |