• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device and method for portion-wise discharge of fish from a storage tank (11) or the like. The device comprises a discharge conduit (12) from the storage tank (11), a curved section (13) of the discharge conduit (12) being pivotally journaled between an inner swivel joint (14a) and an outer swivel joint (14b). The curved pipe section (13) can be arranged in at least the following positions: a) a first position in which the curvature is horizontal and allows (open) passage from the storage tank (11) to sampling equipment; b) a second position in which the curvature is facing down in a U-shape and allows passage from the storage tank (11) to the lowermost point of the curved pipe section (13) but in which further passage is limited by the liquid level in the storage tank (11) relative to the lowermost point of the opening in outer swivel joint (14b); c) a third position in which the curvature faces up and in which passage past the top of the curved pipe section (13) is prevented in both directions.
    公开号:DK201670135A1
    申请号:DK201670135
    申请日:2016-03-09
    公开日:2016-04-04
    发明作者:Willy Ona
    申请人:Willy Ona；
    IPC主号:
    专利说明:

    Equipment for batch-wise discharge of fish
    According to a first aspect the present invention relates a device for portion-wise discharge of fish, particularly live fish, from a storage system as disclosed by the preamble of claim 1. According to another aspect the present invention relates to a method according to the preamble of claim 7.
    Background
    When transporting or transferring fish, especially live fish from one storage system to another, or in connection with catching/ slaughtering fish, it is standard procedure regularly to take samples of the fish. In this connection it is required being able to discharge small portions of fish at a time from a storage system such as a storage tank, screen box, or the like. The traditional way of doing this is by opening a valve in a pipe system and pumping out water and fish for a certain time period and then closing the valve. A disadvantage therewith is that fish will often be present in the valve opening when it closes, and the fish will be damaged or destroyed, often cut in two when the valve closes.
    There is thus a need for a system that provides a more gentle treatment of the fish when it is discharged portion-wise from a storage system.
    Object
    It is thus an object to provide a device which makes it possible, a.o. when sampling fish from a storage tank, to transfer a controlled amount of fish without using closing valves or other equipment that may harm the fish.
    It is a further object to accomplish this with a device that is affordable to acquire, reliable and which requires minimal maintenance.
    The present invention
    The above objects are achieved in form of the apparatus of the present invention as defined by claim 1. According to another aspect, the invention concerns a method as defined by claim 8.
    Preferred embodiments of the invention appear from the dependent claims.
    By "external piping" as used herein, is understood any part of the piping connected to the curved pipe section on the distal side of the curved pipe-section in relation to the storage tank.
    The present invention facilitates portion-wise discharge of small amounts of fish from a reservoir, a storage tank, a screen box or similar without the use of closing valves where fish might get pinched and harmed or destroyed. In construction, the invention is very simple and requires correspondingly little maintenance. It should be emphasized that the said pivotal motion of the curved pipe section can advantageously be conducted mechanically, for example by transmission via a chain or the like to connected gears, by means of hydraulic or pneumatic cylinders, by means of electric motor or the like, rather than exclusively by manual handling.
    The size of the curved pipe section can be selected large or small as desired and in dependence of the fish species, or the location thereof and optionally the inclination of it, may be positioned differently from time to time to further control the amount of fish that is discharged each time.
    Water, which in the first place follows the fish out from the storage tank into the curved pipe section and further on from there, can in connection with one or more pipe sections, preferably downstream of the discharge conduit, be separated from the fish in particular separation equipment and, if so desired, be returned to the storage tank.
    The discharge conduit of the present invention can be mounted directly or indirectly on guiding rails which permit vertical adjustment thereof independently of the water level in the storage tank. The reason for optionally doing this is explained below.
    Alternatively or additionally a vertically adjustable floor may be used in the storage tank to ensure that the fish is appropriately spaced in the tank, not too cramped and not spaced too far apart. A person skilled in the art will understand the inconveniences associated with the fish standing either too cramped or too far apart.
    The discharge conduit can also be arranged in a tillable manner. The significance of this is explained with reference to a drawing below.
    Below the invention is further explained by way of non-limiting embodiments illustrated by the accompanying drawings, in which:
    Figure la-b is a schematic view of the device according to the present invention in connection with a screen box.
    Figure 2 is a view of the device according to the present invention in a first position.
    Figure 3a-c are views of the device according to the present invention in a second position.
    Figure 4 is a view of the device according to the present invention in a third position.
    It should be emphasized that the below-mentioned screen box is one of several possible examples of the storage tank.
    Figure la shows a screen box 11 or similar storage tank for live fish and a discharge conduit 12 for transfer of fish from the screen box to another location or device, such as sampling device 16. Figure lb provides an enlarged view of the discharge conduit. The discharge conduit 12 comprises a curved pipe section 13 which is pivotally journaled at both ends with swivel joints 14a, 14b, which allow the curvature of the curved pipe section 13 to be turned up or down, or any position between these extremes. The curved pipe section is furthermore provided with an air bleeder 15. The curved pipe section or part thereof can be transparent to make it easier to visually keep track of what happens when it is used.
    While Figure la shows the discharge conduit at the top of the screen box 11, it is understood that it is preferably arranged on displaceable means, for example using guide rails, rendering it possible to position it at any elevation of the screen box, depending, among other, on the water level in screen box 11 at any given time.
    Figure 2 shows the curved tube section 13 turned to the horizontal position, which means that the entire curved pipe section is located on the same vertical level. Assuming that at least the lower part of the swivel joints 14a, 14b are positioned lower than the water surface in screen box 11, the fish can continuously pass out from the screen box 11 through the discharge pipe 12 in this position. Water drained from the screen box together with the fish, can if desired be collected and returned to the screen box by means of equipment that does not form part of the present invention.
    Figure 3a shows the curved tubular section 13 of the discharge pipe 12 in a position where the curvature is facing downwards so that the discharge conduit forms letter U. By appropriate vertical positioning of the discharge conduit in relation to the water level in the screen box, a desired amount of water and a certain amount of fish is gathered in the bottom of the curved pipe section. This occurs in a first period of time according to the method of the present invention. It is assumed that the discharge conduit is not positioned so low that water and fish can pass continuously therethrough. Typically, the lower part of the outer swivel joint (14b) is set higher than the water level in the storage tank while the lower part of the inner swivel joint (14a) is set lower than the water level in the storage tank. Alternatively the discharge conduit is raised in relation to the water level in the screen box when the desired amount of water has been collected in the curved pipe section.
    Yet another option is shown in Figure 3b where the discharge conduit 12 is shown tilted so that outer swivel joint 14b is positioned higher than the inner swivel joint 14a. Thereby it can easier be ensured that fish does not pass through the discharge conduit 12 when the curved pipe section 13, is in U-position, but only flows into the curved pipe section and remains there, which is the intent. A further option is to allow discharge conduit be tiltable to also allow external swivel joint 14b be lower than swivel joint 14a. This option enables e.g. slow controlled emptying of the contents of the storage tank.
    In Figure 3c the discharge conduit 12 is shown - a little enlarged - with the curved pipe section 13 of the U-position with some water and fish in the curved pipe section. The amount of fish will vary from time to time, but by controlling the water level in the screen box relative to the total amount of fish in the screen box, so as to maintain a certain controlled "crowding" in the screen box, the number of fish are gathered in the curved pipe section of discharge pipe will only vary within predictable and acceptable limits.
    Figure 4 shows the curved pipe section 13 of the discharge conduit in position with the curvature upwards. If or when the curved pipe section 13 is turned from the position shown in Figure 3a, with the fish in the bottom of the discharge pipe, to the position shown in Figure 4, without stopping in a position between these, about half the amount offish which in the position shown in Figure 3 was situated at the bottom of the curved pipe section, will slide out of same towards the left, to the external piping which can lead the fish to a sampling room. The other half will slide back into the screen box 11. If the number of fish which pass to the sampling room is too small, the process is repeated as illustrated by Figures 3 and 4.
    If, during filling of the curved tubular section 13 of the discharge conduit, the discharge conduit 12 is tilted as shown in Figure 3b, it may be convenient prior to turning the curved tubular section 13 to the position shown in Figure 4, first to raise the entire discharge conduit 12 to a level above the water level in the screen box 11 and then turning discharge pipe back to the horizontal position.
    In this manner, as described above, transfer of fish from a screen box 11 or similar to an external pipe system may be conducted without using closing valves that potentially can harm or destroy fish. The number of fish taken out during each transfer will vary somewhat, but within acceptable limits.
    There is nothing preventing a combination of the present invention with the use of conventional closing valves to enable a 100% secure seal between screen box or other storage tank and the outside world. Such valves, however, is not needed for use when sampling fish according to the present invention.
    权利要求:
    Claims (10)
    [1] 1. Device for portion-wise discharge of fish from storage tank (11) or the like to an external pipe system comprising a discharge conduit (12) from the storage tank (11), while a curved pipe section (13) of the discharge conduit (12) is pivotally journaled between an inner swivel joint (14a) and an outer swivel joint (14b), characterized in that the curved pipe section (13) may be pivoted between at least the following positions: a. a first position in which the curvature is horizontal and allows fluid flow from the storage tank (11) through the curved pipe section (11) to the external piping, b. a second position in which the curvature is facing down in U-shape and allows fluid flow from the storage tank (11) to the bottom of the curved pipe section (13), but where the fluid flow further on is restricted by the liquid level in the storage tank (11) relative to the lowest point of the opening in outer swivel joint (14b), c. a third position in which the curvature is facing up and in which the fluid flow past the top of the curved pipe section (13) is prevented in both directions.
    [2] 2. Device according to claim 1, characterized in that the discharge conduit (12) is vertically adjustable to adapt to different levels of water in the storage tank.
    [3] 3. Device according to one of the preceding claims, characterized in that the discharge conduit (12) is arranged to be tiltable so that the outer swivel joint (14b) can be set higher than the inner swivel joint (14a).
    [4] 4. Device according to one of the preceding claims, characterized in that the discharge conduit (12) is arranged to be tiltable so that the outer swivel joint (14b) can be set lower than the inner swivel joint (14a).
    [5] 5. Device according to one of the preceding claims, characterized in that at least one section of pipe between the storage tank and the external piping system comprises means for separating the fish from the water, so that at least part of the water supplied with fish from the storage tank can be directed to a different location than the fish.
    [6] 6. Device according to one of the preceding claims, characterized in that the discharge pipe is arranged to be adjusted so that the lower part of the outer swivel joint (14b) is higher than the water level in the storage tank while the lower part of the inner swivel joint (14a) is lower than water level in the storage tank, when the curvature of the curved pipe section faces down in U-shape.
    [7] 7. Device according to one of the preceding claims, characterized in that the external piping leads to a sampling room or to sampling equipment.
    [8] 8. A method of portion wise discharge of fish from the storage tank (11) or the like, characterized in that in a first period of time to allow fish in a limited amount of water flow from the storage tank (11) to a curved and rotatable pipe section (13) which in the first period of time is oriented with the curvature directed downward, and in a subsequent period to rotate the curved pipe section (13) to a position where the curvature is oriented upwards, so that a first subset of the fish contained in the curved pipe section (13) flows back to the storage tank (11) while another subset of the fish flows on to an externally connected piping.
    [9] 9. Method according to claim 8, characterized in that the curved pipe section during the first period of time is positioned at such a elevation relative to the water in the storage tank (11) that fish can not pass through the curved pipe section (13).
    [10] 10. Method according to claim 8 or 9, characterized in that the first subset is about as large as the other subset.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2015026241A1|2015-02-26|
    NO20131121A1|2015-02-20|
    DK178963B1|2017-07-10|
    NO335810B1|2015-02-23|
    EP3035791A4|2017-04-19|
    EP3035791A1|2016-06-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4040200A|1975-03-20|1977-08-09|Shuzo Tomita|Portable container for fish, live bait, and the like|
    SU1439070A1|1987-06-23|1988-11-23|Предприятие П/Я А-1944|Apparatus for unloading live fish with liquid medium from a tank|
    JPH02106519A|1988-10-12|1990-04-18|Takeshi Hayashi|Ejector fish pump device|
    KR100728801B1|2005-09-12|2007-06-15|이완영|Sludge treatment system for dam|
    NO20110625A1|2011-04-27|2012-08-20|Ocea As|Lice treatment system and associated procedure for treating lice|
    IL217578A|2012-01-17|2014-12-31|Crystal Vision Agricultural Cooperative Soc Ltd|Device for use in monitoring fish condition|GB201415778D0|2014-09-05|2014-10-22|Lobster Pod Ltd|Storage apparatus|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NO20131121|2013-08-19|
    NO20131121A|NO335810B1|2013-08-19|2013-08-19|Method and equipment for portion feeding of fish|
    PCT/NO2014/050146|WO2015026241A1|2013-08-19|2014-08-18|Equipment and method for batch-wise discharge of fish|
    NO2014050146|2014-08-18|
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