[특허]Pressurized containers and methods for filling them

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Pressurized containers and methods for filling them

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65B-031/00 B65B-031/10
미국특허분류(USC)	053/403; 053/431; 053/470; 053/510
출원번호	UP-0805995 (2007-05-26)
등록번호	US-7779608 (2010-09-13)
발명자 / 주소	Lim, Walter K. Krause, Arthur A.
대리인 / 주소	Lambert, Dennis H.
인용정보	피인용 횟수 : 4 인용 특허 : 21

초록
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According to a first aspect of the invention a can manufacturer completes manufacture of a can and then ships it to a filler, who needs only to fill the can with product. In a preferred embodiment the manufacturer pre-charges the container with a propellant. In accordance with a second aspect of the invention a desired quantity of gaseous propellant is first charged into a container, and a desired quantity of product is then injected into the container. A container filled in accordance with the invention maintains a predetermined pressure in the containe...

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What is claimed is: 1. A method of manufacturing and filling pressurized aerosol cans, comprising the steps of: at the can manufacturer applying a discharge valve to a container, closing and sealing the container, and charging a desired quantity of gaseous propellant into the closed and sealed container from a source outside the container to pressurize it; shipping the closed and sealed container pre-charged with pressurized gaseous propellant to a filler to be filled with product; at the filler injecting a desired quantity of product into the container with the product; and shipping the filled and pressurized container to a point of sale. 2. A method as claimed in claim 1, wherein: the propellant comprises gaseous carbon dioxide. 3. A method as claimed in claim 2, wherein: the product and propellant are together in the same chamber; and the product contains a material in which CO2 readily and rapidly dissolves. 4. A method as claimed in claim 3, wherein: the material comprises acetone. 5. A method as claimed in claim 3, wherein: the material comprises alcohol. 6. A method as claimed in claim 1, wherein : the propellant is selected from the group consisting of: carbon dioxide; nitrogen; argon; propane; n-butane; isobutane (2-methylpropane); dimethyl ether; HFC-152a (1,1-difluoroethane); HFC-134a (1,2,2,2-tetrafluoroethane); nitrous oxide; ethyl fluoride (CH3—CH2F); fluoro-ethers (e.g., CHF2—O—CH3); and compressed air; and combinations of these. 7. A method as claimed in claim 1, wherein: the product is a liquid and is chilled prior to being injected into the container. 8. A method as claimed in claim 1, wherein: the product is a liquid and is injected into the container in a single step. 9. A method as claimed in claim 1, wherein: the product is a liquid and is injected into the container in multiple stages. 10. A method as claimed in claim 1, wherein: the propellant comprises gaseous carbon dioxide; the product is a liquid and is chilled prior to being injected into the container; and the liquid product is injected into the container in multiple stages. 11. A method of filling a pressurized dispensing container so that a satisfactory pressure exists in the container throughout its useful life and unacceptable pressure spikes during filling of the container are avoided, comprising the steps of: providing a container body having a top with an opening through it for attachment of a valve; placing a predetermined quantity of dry ice through the opening and into the container; permitting some of the dry ice to vaporize, filling the interior of the container with gaseous carbon dioxide, thereby purging the container; applying and sealing a valve in the opening through the top of the container; and injecting a predetermined quantity of product into the container in multiple steps, wherein the dry ice continues to vaporize until a desired pressure is reached in the container. 12. A method as claimed in claim 11, wherein: the product is chilled before it is injected into the container. 13. A method of filling a pressurized dispensing container so that a satisfactory pressure exists in the container throughout its useful life and unacceptable pressure spikes during filling of the container are avoided, comprising the steps of: placing a quantity of gas adsorbing material in the container; closing and sealing the container; first charging a predetermined quantity of gaseous propellant under pressure into the container and adsorbing at least some of the propellant onto the sorbent material; and then injecting a predetermined quantity of product into the container in multiple steps. 14. A method as claimed in claim 13, wherein: the product is chilled before it is injected into the container. 15. A method of filling a pressurized dispensing container so that a satisfactory pressure exists in the container throughout its useful life and unacceptable pressure spikes during filling of the container are avoided, comprising the steps of: closing and sealing the container; charging a predetermined quantity of propellant into the container to pressurize it; and then injecting a predetermined quantity of product into the container in multiple steps to avoid pressure spikes in the container during filling.

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이 특허를 인용한 특허 피인용횟수: 4

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Pressurized containers and methods for filling them

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Pressurized containers and methods for filling them

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이 특허에 인용된 특허 (21)

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