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    Container for a compressed fluid such as CO2 with a helical coil
    6.
    发明专利
    Container for a compressed fluid such as CO2 with a helical coil 未知

    公开(公告)号：NZ504966A

    公开(公告)日：2001-10-26

    申请号：NZ50496698

    申请日：1998-12-01

    Applicant: EMERALD ENTPR PTY LTD

    Inventor： COVENTRY ANDREW

    IPC: F17C1/12 ,  F17C13/00

    Abstract: A container (10) for holding a supply of compressed fluid such as carbon dioxide has a length of tube (12) formed into a multi turn helical coil (14). A first valve (16) is provided at the lowest end (18) of the coil for controlling the flow of fluid out of the container. A thermal insulating setable foam (20) envelopes the tube and coil, though not the valve which is disposed outside of the foam. A strap (26) extends about the coil to bind the turns of the coil together for added safety and strength. Coil, and setable foam are disposed within a heat insulating housing (28). Inlet valve (22) is attached to an upper end of the tube proximate the highest one of the turns of the coil.

    REFRIGERATION SYSTEM
    8.
    发明专利
    REFRIGERATION SYSTEM 未知

    公开(公告)号：CA2188402C

    公开(公告)日：2003-07-15

    申请号：CA2188402

    申请日：1995-04-21

    Applicant: EMERALD ENTPR PTY LTD

    Inventor： COVENTRY ANDREW

    IPC: F25D3/10 ,  F25D3/00 ,  F25D3/12 ,  F25D16/00

    Abstract: A refrigeration system (12) comprising three expansion units (19A, 19B, 19C) connectable in parallel via respective conduits (30) to a supply (16) of compressed refrigerant. Each expansion unit comprises an expansion chamber (22) and three series connected secondary chambers (24, 26 and 28). The expansion chamber (22) and secondary chambers (24, 26 and 28) are formed with progressively reducing volumetric capacity. The end of each of the third secondary chambers (28), distant from their respective second secondary chambers (26) is connected to a common bleed tube (29) having a bleed hole (34) for venting the refrigerant. The bleed hole (34) opens on the outside of a housing (15) which houses the expansion units (19A, 19B, 19C). The interior of the housing (15) is filled with a gel wh ich a changes state from a liquid to a solid at a predetermined temperature. A valving arrangement (32) connects the expansion units (19A, 19B and 19C) to a supply of compressed refrigerant. The housing (15) together with a connected supply (16) refrigerant can be instal led into a cooling box for cooling the space within, and thus any contents of, the cooling box. This is achieved by the valve mechanism (32) periodically admitting a volume of compressed refrigerant into the expansion units (19A, 19B and 19C). Upon such admittance, the compressed refrigerant initially expands in the expansion chambers (22). This is accompanied by an absorption of heat from the surrounding gel which in turn absorbs heat from the space within the colling box. The flow of expanded refrigerant through the secon dary chambers is retarded by back pressure produced by having the secondary chambers of progressively reducing volumetric capacity. This allows the gel to be maintained at a frozen state for a long period of time while consuming only small volumes of compressed refrige rant.

    CONTAINER FOR A COMPRESSED FLUID
    9.
    发明专利
    CONTAINER FOR A COMPRESSED FLUID 未知

    公开(公告)号：CA2313031A1

    公开(公告)日：1999-06-10

    申请号：CA2313031

    申请日：1998-12-01

    Applicant: EMERALD ENTPR PTY LTD

    Inventor： COVENTRY ANDREW

    IPC: F17C1/12 ,  F17C13/00

    Abstract: A container (10) for holding a supply of compressed fluid such as carbon dioxide has a length of tube (12) formed into a multi turn helical coil (14). A first valve (16) is provided at the lowest end (18) of the coil (14) for controlling the flow of fluid out of the container (10). A thermal insulating setable foam (20) envelopes the tube (12) and coil (14), though not the valve (16) which is disposed outside of the foam (20). A strap (26) extends about the coil (14) to bind the turns of the coil (14) together for added safety and strength. Coil (14), and setable foam (20) are disposed within a heat insulating housing (28). Inlet valve (22) is attached to an upper end of the tube (12) proximate the highest one of the turns of the coil (14).

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