IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0455040
(2009-05-26)
|
등록번호 |
US-8591747
(2013-11-26)
|
발명자
/ 주소 |
- Little, David Alan
- Sundaram, Magesh
|
출원인 / 주소 |
|
대리인 / 주소 |
Stout, Uxa, Buyan & Mullins
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
165 |
초록
▼
Containers for controlled release of an additive composition into a liquid composition include a liquid impermeable casing having a hollow interior, at least one opening and a membrane component secured to the casing. Methods of releasing additive compositions into liquid compositions are also provi
Containers for controlled release of an additive composition into a liquid composition include a liquid impermeable casing having a hollow interior, at least one opening and a membrane component secured to the casing. Methods of releasing additive compositions into liquid compositions are also provided.
대표청구항
▼
1. A container for releasing an additive composition into a liquid composition, the container comprising: a casing impermeable to a liquid composition, the casing comprising a casing body and a separate end portion coupled to the casing body, the casing body defining a substantially hollow interior,
1. A container for releasing an additive composition into a liquid composition, the container comprising: a casing impermeable to a liquid composition, the casing comprising a casing body and a separate end portion coupled to the casing body, the casing body defining a substantially hollow interior, at least one opening in the separate end portion into the substantially hollow interior and at least one further opening into the substantially hollow interior, the at least one further opening located in an end of the casing body substantially opposite the end portion and being positioned to allow air to pass out of the substantially hollow interior through the at least one further opening;a plurality of solid particles of an additive composition comprising a chemical additive component located in the substantially hollow interior of the casing body;a membrane component covering the at least one opening in the separate end portion and is effective to provide for release of the additive composition from the substantially hollow interior into a liquid composition in contact with the casing, the membrane component being fixedly secured to the separate end portion;a support structure extending across the membrane component covering the at least one opening to support the membrane component, the support structure and the separate end portion being a unitary structure; andan umbrella valve operable to allow air to pass out of the substantially hollow interior through the at least one further opening and to substantially prevent a liquid from passing into or out of the substantially hollow interior across the valve through the at least one further opening. 2. The container of claim 1, wherein the membrane component is co-molded with the separate end portion. 3. The container of claim 1, wherein the additive composition includes an additive component selected from the group consisting of corrosion inhibitors, microbiocides, scale inhibitors, dispersants, buffering agents, surfactants, anti-fouling agents and mixtures thereof. 4. The container of claim 1, wherein the substantially hollow interior has a volume in a range of about 1 ounce to about 100 ounces. 5. The container of claim 1, wherein the support structure is positioned so that the membrane component covering the at least one opening in the separate end portion is located between the substantially hollow interior and the support structure when the separate end portion is coupled to the casing body. 6. A method of treating a liquid composition, the method comprising placing a container in contact with a liquid composition, the container comprising a casing impermeable to a liquid composition, the casing comprising a casing body and a separate end portion coupled to the casing body, the casing body defining a substantially hollow interior, at least one opening in the separate end portion into the substantially hollow interior and at least one further opening into the substantially hollow interior, the at least one further opening located in an end of the casing body substantially opposite the end portion and being positioned to allow air to pass out of the substantially hollow interior through the at least one further opening; a plurality of solid particles of an additive composition comprising a chemical additive component located in the substantially hollow interior of the casing body; a membrane component covering the at least one opening in the separate end portion and is effective to provide for release of the additive composition from the substantially hollow interior into a liquid composition in contact with the casing, the membrane component being fixedly secured to the separate end portion; a support structure extending across the membrane component covering the at least one opening to support the membrane component, the support structure and the separate end portion being a unitary structure; and an umbrella valve operable to allow air to pass out of the substantially hollow interior through the at least one further opening and to substantially prevent a liquid from passing into or out of the substantially hollow interior across the valve through the at least one further opening, the additive composition being effective when released into the liquid composition to treat the liquid composition, thereby treating the liquid composition. 7. The method of claim 6, wherein the liquid composition is an aqueous liquid composition. 8. The method of claim 6, wherein the additive composition comprises a scale inhibitor, and the liquid composition is an aqueous liquid composition to be used in cooling application. 9. The method of claim 6, wherein the liquid composition is an aqueous liquid composition and is treated using the container to make the aqueous liquid composition potable or to maintain the aqueous liquid composition in a potable condition. 10. The method of claim further comprising placing the container in an appropriate position relative to a system selected from the group consisting of a down hole drilling system, an enhanced oil recovery system, an air washer system, a fracturing fluid heating system, an industrial cooling system and a commercial cooling system so that the additive composition from the substantially hollow interior is released into a liquid composition used in the system.
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