Abstract: A snap ring having an easily replaceable support reliably supports a purse line and overcome frictional force between the purse line and the snap ring even without having a side roller requiring a complex structure on an end of a main roller. In the snap ring, in lieu of a side roller having a complex structure, the support having a simple structure is provided in at least one of the first and second side parts of a frame such that the support and the main roller can reliably support a purse line and overcome frictional force between the snap ring and the purse line. Furthermore, each of the support and the main roller is configured so as to be separately replaceable with a new one. Thus, even if the support or main roller becomes worn, it can be easily replaced with a new one.

Abstract: A snap ring having an easily replaceable support reliably supports a purse line and overcome frictional force between the purse line and the snap ring even without having a side roller requiring a complex structure on an end of a main roller. In the snap ring, in lieu of a side roller having a complex structure, the support having a simple structure is provided in at least one of the first and second side parts of a frame such that the support and the main roller can reliably support a purse line and overcome frictional force between the snap ring and the purse line. Furthermore, each of the support and the main roller is configured so as to be separately replaceable with a new one. Thus, even if the support or main roller becomes worn, it can be easily replaced with a new one.

Abstract: Disclosed herein is a snap ring which is configured such that pressure which is applied from a purse line to the snap ring or multiple rollers is distributed to two rollers rather than being focused on one roller. A first side part and a second side part of a frame are formed diagonally such that the purse line that is disposed on the first side roller or the second side roller is easily moved towards an intermediate roller along the first side part or the second side part. Thereby, pressure which is applied from the purse line to the snap ring or the multiple rollers can be evenly distributed to the first side roller and the intermediate roller or to the second side roller and the intermediate roller rather than being focused on only one roller. As a result, the lifetime of the snap ring can be increased.

Abstract: Disclosed herein is a snap ring which is configured such that pressure which is applied from a purse line to the snap ring or multiple rollers is distributed to two rollers rather than being focused on one roller. A first side part and a second side part of a frame are formed diagonally such that the purse line that is disposed on the first side roller or the second side roller is easily moved towards an intermediate roller along the first side part or the second side part. Thereby, pressure which is applied from the purse line to the snap ring or the multiple rollers can be evenly distributed to the first side roller and the intermediate roller or to the second side roller and the intermediate roller rather than being focused on only one roller. As a result, the lifetime of the snap ring can be increased.

Abstract: A snap ring for coupling a purse line to a purse seine includes a frame, a plurality of rollers, a frame opening, and a locking unit. The frame is connected to the purse seine. The purse line passes through a second end of the frame. The rollers are rotatably provided in the frame at positions at which the purse line is brought into contact with the frame. The frame opening is formed in one side part of opposite side parts of the frame to open the frame. The locking unit is coupled to the frame to openably close the frame opening. The locking unit includes a first cylinder which is hinged at a first end thereof to the part of the frame which corresponds to a first end of the frame opening.

Abstract: A snap ring for coupling a purse line to a purse seine includes a frame, a plurality of rollers, a frame opening, and a locking unit. The frame is connected to the purse seine. The purse line passes through a second end of the frame. The rollers are rotatably provided in the frame at positions at which the purse line is brought into contact with the frame. The frame opening is formed in one side part of opposite side parts of the frame to open the frame. The locking unit is coupled to the frame to openably close the frame opening. The locking unit includes a first cylinder which is hinged at a first end thereof to the part of the frame which corresponds to a first end of the frame opening.

Abstract: A purse ring for coupling a purse seine and a purse line to each other. The purse ring includes a frame, which is coupled at a first end thereof to the purse seine and passes the purse line through a second end thereof, and at least three rollers, which are rotatably provided in the frame at positions at which the purse line are brought into contact with the frame. The purse seine having the multiple rollers has a structure such that friction between the purse line and the purse ring is reduced, thus increasing the lifetime of the purse ring, thereby reducing costs of replacement of the purse ring.

Abstract: Described is a multi-roller snap ring with one or more rollers extending across a space defined by a frame and one or more rollers integrated within the frame of the snap ring. The multiple rollers reduce and mitigate the frictional wear and tear caused by a purse line being drawn through the snap ring during purse seine deployment and retrieval operations. In addition, a locking mechanism with a spring-loaded, sliding and rotating lock forming a portion of the frame and a stopper tab are disclosed.

Abstract: Disclosed is a portable water filtration device in which a filter cartridge having a water purifying function is mounted in a water bottle, including a body, which has an inlet in its upper portion and is made of an elastically deformable material, a lid, which is coupled with the body and has a discharge hole, through which water is discharged, a filter cartridge, which is coupled with the lid and has an outflow part from which the water is discharged, inflow holes through which the water enters, and a filter, and a filter housing, which is open in its upper portion for insertion of the filter cartridge into the filter housing. Thus, the portable water filtration device is easy to carry outdoors and is convenient to use because it does not require a separate pressurizer.

Abstract: Disclosed herein is a purse ring for coupling a purse seine and a purse line to each other. The purse ring of the present invention includes a frame, which is coupled at a first end thereof to the purse seine and passes the purse line through a second end thereof, and at least three rollers, which are rotatably provided in the frame at positions at which the purse line are brought into contact with the frame. The purse seine having the multiple rollers according to the present invention has a structure such that friction between the purse line and the purse ring is reduced, thus increasing the lifetime thereof, thereby reducing costs of replacement thereof.