US4370305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the sterilization of fluid substances
Assignee: HOELZLE & CHELIUS LLC
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Filing: 1980-07-18
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Granted: 1983-01-25
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Expires: 2000-07-18
Abstract
Abstract A device for the sterilization of fluids wherein a sterilizing gas is chemically generated in-situ within a liquid-impermeable container, which container is in contact with the fluid to be sterilized. The container is constructed at least in part of a solid, non-porous, liquid-impermeable synthetic plastic barrier, which barrier permits controlled diffusion of the sterilizing gas therethrough while preventing passage therethrough of impurities and the residue of the gas generation reaction.
Inventors
- 👤 Alvaro Affonso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:57
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; A; A61; A61L; A61L2/00; A61L2/16; A61L2/20; A61L9/00; A61L9/015
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
90 words
An apparatus for the sterilization of fluids comprising: a substance capable of generating a disinfecting gas upon chemical activation; a liquid-impermeable container surrounding said substance, at least a portion of the wall of said container being formed of a solid, non-porous, liquid-impermeable synthetic plastic barrier separating said substance from a fluid to be sterilized and permitting controlled diffusion of disinfecting gas while preventing the passage of impurities and the residue of the gas generation reaction therethrough; and means for contacting said fluid to be sterilized with said synthetic plastic barrier.
Claim 2
Independent Claim
90 words
An apparatus for the sterilization of fluids comprising: a substance capable of generating a disinfecting gas upon chemical activation; a liquid-impermeable container surrounding said substance, at least a portion of the wall of said container being formed of a solid, non-porous, liquid-impermeable synthetic plastic barrier separating said substance from a fluid to be sterilized and permitting controlled diffusion of disinfecting gas while preventing the passage of impurities and the residue of the gas generation reaction therethrough; and means for contacting said fluid to be sterilized with said synthetic plastic barrier.
Claim 3
Dependent Claim
29 words
The fluid sterilization apparatus of claim 1 wherein said means for contacting said fluid with said synthetic plastic barrier comprises a vessel simultaneously housing said container and said fluid.
Claim 4
Dependent Claim
33 words
The fluid sterilization apparatus of claim 1 wherein said means for contacting said fluid with said synthetic plastic barrier comprises a circuit for the flow of said fluid past said synthetic plastic barrier.
Claim 5
Dependent Claim
20 words
The fluid sterilization apparatus of claim 1 wherein said substance is activated and generates disinfecting gas upon contact with water.
Claim 6
Dependent Claim
32 words
The fluid sterilization apparatus of claim 1 wherein said container is a cartridge having at least a portion of the outside surface thereof comprised of said solid, non-porous, liquid-impermeable synthetic plastic barrier.
Claim 7
Dependent Claim
14 words
The fluid sterilization apparatus of claim 1 further comprising a plurality of said containers.
Claim 8
Dependent Claim
35 words
The fluid sterilization apparatus of claim 1 wherein said synthetic plastic barrier is formed from a solid synthetic polymer selected from the group consisting of polyethylene, polypropylene, polyvinylchloride, polyethylene-polypropyleneamide, polytetrafluoroethylene and mixtures and derivatives thereof.
Claim 9
Dependent Claim
29 words
The fluid sterilization apparatus of claim 1 wherein the disinfecting gas is selected from the group consisting of halogen, a dioxide of a halogen, sulfur dioxide and derivatives thereof.
Claim 10
Dependent Claim
31 words
The fluid sterilization apparatus of claim 1 wherein said container comprises a bag having at least a portion of the wall thereof formed of said solid, non-porous, liquid-impermeable synthetic plastic barrier.
Claim 11
Dependent Claim
33 words
The fluid sterilization apparatus of claim 1 wherein said container is a flexible tube member having at least a portion of the wall thereof covered by said solid, non-porous, liquid-impermeable synthetic plastic barrier.
Claim 12
Dependent Claim
45 words
The fluid sterilization apparatus of claim 1 wherein said container comprises two chambers separated by a releasable separating means; one of said chambers containing said substance capable of generating said disinfecting gas, and the other of said chambers containing a chemical activator for said substance.
Claim 13
Dependent Claim
12 words
The fluid sterilization apparatus of claim 1 wherein said fluid is water.
Claim 14
Dependent Claim
26 words
The fluid sterilization apparatus of claim 12 further comprising a means for introducing a chemical activator into contact with said substance capable of generating disinfecting gas.
Claim 15
Dependent Claim
18 words
The fluid sterilization apparatus of claim 13 wherein said activator introducing means comprises a conduit into said container.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |