US4784699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for decontaminating military nerve and blister agents
Assignee: Southern Research Institute
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Filing: 1987-04-08
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Granted: 1988-11-15
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Expires: 2007-04-08
Abstract
Abstract The invention provides a process for decontaminating military nerve agents and blister agents. The process involves contacting the nerve agent and blister agent, particularly clothing and other items contaminated therewith, with gaseous ozone or chlorine dioxide, whereby the agents are oxidized to non-toxic products and thereby decontaminated rapidly, e.g. within a few minutes. The treatment with ozone or chlorine dioxide does not seriously affect the mechanical properties of the contaminated materials, such as fabrics.
Inventors
- 👤 Donald R. Cowsar
- 👤 Richard L. Dunn
- 👤 Robert A. Casper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:14
CPC Classifications
A; A62; A62D; A62D3/00; A62D3/30; A62D3/38; C; C11; C11D; C11D3/00; C11D3/395; C11D3/3953; D; D06; D06L; D06L4/00; D06L4/10; D06L4/18; A62D2101/00; A62D2101/02; A62D2101/20; A62D2101/26; A62D2101/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
In an improved process of decontaminating large quantities of protective clothing without substantially degrading said clothing, said clothing having been exposed to chemical warfare simulants, comprising: contacting said clothing for penetration and permeation with chlorine dioxide, a gaseous decontaminant, and degassing said decontaminant from said clothing.
Claim 2
Dependent Claim
46 words
In an improved process of decontaminating large quantities of protective clothing without substantially degrading said clothing, said clothing having been exposed to chemical warfare simulants, comprising: contacting said clothing for penetration and permeation with chlorine dioxide, a gaseous decontaminant, and degassing said decontaminant from said clothing.
Claim 3
Dependent Claim
38 words
The process of claim 1 wherein said clothing is made of a material or mixture selected from the group consisting of cotton, rayon, wool, nylon, polyester, natural polymers, synthetic polymers, leather, elastomers, natural rubber, synthetic rubber, and sealants.
Claim 4
Dependent Claim
17 words
The process of claim 1 wherein said chemical warfare simulants are 2-chloroethyl ethyl sulfide and ethyl methylphosphorofluoridate.
References Cited (Backward Citations)
US3810788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |