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US4969750A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of shipment and containment of hazardous liquids

Assignee: Rousseau Research Inc
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Filing: 1988-10-14
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Granted: 1990-11-13
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Expires: 2008-10-14
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Abstract

Abstract The present invention pertains to a method of packaging hazardous liquids for shipment or containment, and to the structure and composition of the packaging which can be used to practice the method. The method comprises packaging a hazardous liquid for shipment or containment wherein the hazardous liquid, present in at least one sealed container or in a leaking container, respectively, is placed in a package which can be sealed so that the package completely surrounds and isolates the container, wherein the improvement comprises: constructing the packaging material so that it comprises at least two layers, including an interior layer and an exterior layer, wherein the interior layer of the packaging material adjacent to the sealed or leaking container can be penetrated by liquid which escapes from the container, and wherein the exterior layer of the packaging material, the external portion of which is in contact with the external environment, is impermeable by the liquid and by hazardous vapor therefrom. Typically, the packaging material is comprised of three layers, the interior, permeable layer, an adjacent layer which comprises an absorbent or adsorbent, and the exterior impermeable layer.

Inventors

  • 👤 Joseph D. Russo
  • 👤 Laurence M. Russo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 18:26
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/84; B65D81/00; B65D81/24; B65D81/26; B65D81/264

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 174 words
A method of safely packaging a hazardous liquid for shipment, which hazardous liquid comprises an etiologic agent, comprising the steps of: (a) providing a package having at least two layers, including an interior layer and an exterior layer, wherein: (i) said interior layer of said package is disposed intermediate a sealed container containing said hazardous liquid; (ii) said interior layer is permeable by liquid which escapes from the hazardous liquid container and comprises a fibrous woven or non-woven material which adsorbs or absorbs said liquid; and (iii) said exterior layer, the external portion of which is in direct contact with the external ambient environment, is impermeable by said liquid, by any hazardous vapors therefrom, and by etiologic agents therefrom; (b) providing an essentially impermeable seal against leakage of said hazardous liquid, vapors and etiologic agents therefrom, so that said package completely isolates said hazardous liquid, vapors and etiologic agents there of from escape to said external ambient environment; and (c) adhesively sealing said package, after introducing said container, to provide said seal during shipment.
Claim 2
Independent Claim 174 words
A method of safely packaging a hazardous liquid for shipment, which hazardous liquid comprises an etiologic agent, comprising the steps of: (a) providing a package having at least two layers, including an interior layer and an exterior layer, wherein: (i) said interior layer of said package is disposed intermediate a sealed container containing said hazardous liquid; (ii) said interior layer is permeable by liquid which escapes from the hazardous liquid container and comprises a fibrous woven or non-woven material which adsorbs or absorbs said liquid; and (iii) said exterior layer, the external portion of which is in direct contact with the external ambient environment, is impermeable by said liquid, by any hazardous vapors therefrom, and by etiologic agents therefrom; (b) providing an essentially impermeable seal against leakage of said hazardous liquid, vapors and etiologic agents therefrom, so that said package completely isolates said hazardous liquid, vapors and etiologic agents there of from escape to said external ambient environment; and (c) adhesively sealing said package, after introducing said container, to provide said seal during shipment.
Claim 3
Dependent Claim 21 words
The method of claim 1 wherein at least one of said layers of said package is capable of immobilizing said liquid.
Claim 4
Dependent Claim 54 words
The method of claim 1 or claim 2 wherein at least one of said layers of said package comprises a reactant which, on contact with said hazardous liquid, destroys or deactivates said liquid to a chemical or physical composition which no longer poses a significant hazard to a person exposed to said deactivated composition.
Claim 5
Dependent Claim 14 words
The method of claim 3 wherein said reactant destroys or deactivates said etiologic agent.
Claim 6
Dependent Claim 42 words
The method of claim 1 wherein at least one of said layers of said package, on contact with said hazardous liquid, filters out, adsorbs, absorbs, or coagulates said etiologic agents, whereby said etiologic reagents remain inside said exterior layer of said package.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-11-12 1994-05-14 1994-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-11-12 1998-05-14 1998-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-11-12 2002-05-14 2002-11-13 $7700.00 Window Closed / Lapsed

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