Regulated vacuum off-gassing of gas filter for fluid processing system and related methods
US-10059916-B2 · Aug 28, 2018 · US
Methods for gas filteration in fluid processing systems
US11554335B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11554335-B2 |
| Application number | US-202016854358-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 21, 2020 |
| Priority date | Mar 21, 2014 |
| Publication date | Jan 17, 2023 |
| Grant date | Jan 17, 2023 |
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- Title
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Abstract
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A method for filtering a gas includes passing a gas into a compartment of a casing that includes a polymeric film, the casing having: a first sleeve having a first outlet opening, a first filter being at least partially disposed within the first sleeve so that gas passing through the first sleeve must pass through the first filter; and a second sleeve having an second outlet opening, a second filter being at least partially disposed within the second sleeve so that gas passing through the second sleeve must pass through the second filter, the second sleeve being closed so that the gas passing into the compartment of the casing passes through the first sleeve and the first filter and directly contacts at least a portion of the first sleeve comprised of the polymeric film but does not pass through the second sleeve. Opening the second sleeve when a predetermined condition is met so that the gas passes through the second sleeve and the second filter.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for filtering a gas comprising: passing a gas from a bioreactor or fermentor where cells or microorganisms are being grown into a compartment of a casing comprised of a polymeric film, the casing comprising: a first sleeve comprised of the polymeric film and having a first outlet opening, a first filter being at least partially disposed within the first sleeve so that gas passing through the first sleeve must pass through the first filter; and a second sleeve having a second outlet opening, a second filter being at least partially disposed within the second sleeve so that gas passing through the second sleeve must pass through the second filter, the second sleeve being closed so that the gas passing into the compartment of the casing passes through the first sleeve and the first filter and directly contacts at least a portion of the first sleeve comprised of the polymeric film but does not pass through the second sleeve; and opening the second sleeve when a predetermined condition is met so that the gas passing into the compartment of the casing passes through the second sleeve and the second filter. 2. The method as recited in claim 1 , wherein opening the second sleeve comprises opening a clamp closed directly across a portion of the casing, the portion of the casing being comprised of the polymeric film. 3. The method as recited in claim 2 , wherein the clamp is opened either manually or automatically when the predetermined condition is met. 4. The method as recited in claim 1 , further comprising sensing, either directly or indirectly, a pressure of the gas within the compartment of the casing, the predetermined condition comprising the sensed pressure of the gas reaching a predetermined pressure level. 5. The method as recited in claim 1 , wherein the gas passes through both the first filter and the second filter when the second sleeve is opened. 6. The method as recited in claim 1 , wherein the first sleeve outwardly expands when the gas is passed into the compartment of the casing. 7. The method as recited in claim 1 , wherein the first filter and the second filter each have a pore size smaller than 1 μm. 8. The method as recited in claim 1 , wherein a portion of the second sleeve that is comprised of the polymeric film is directly connected to a portion of the first sleeve that is comprised of the polymeric film. 9. The method as recited in claim 1 , further comprising applying heat to the first sleeve through a heating jacket disposed against the first sleeve.
Assignees
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Classifications
Flexible receptacles, e.g. bags supported by rigid containers · CPC title
Nozzles; Sprayers; Spargers; Diffusers (per se B01F23/231, B01J19/26) · CPC title
Filters · CPC title
Stirrer or mobile mixing elements · CPC title
with a separate receptacle-stirrer unit that is adapted to be coupled to a drive mechanism · CPC title
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- What does patent US11554335B2 cover?
- A method for filtering a gas includes passing a gas into a compartment of a casing that includes a polymeric film, the casing having: a first sleeve having a first outlet opening, a first filter being at least partially disposed within the first sleeve so that gas passing through the first sleeve must pass through the first filter; and a second sleeve having an second outlet opening, a second f…
- Who is the assignee on this patent?
- Life Technologies Corp
- What technology area does this patent fall under?
- Primary CPC classification C12M23/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 17 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).