An aerator and an associated method and system are provided. The aerator includes an elongate body having a central bore that extends between proximal and distal ends of the body, and a plurality of channels formed in an outer surface of the body, the plurality of channels extending between the proximal and distal ends, and including at least two bends along their lengths. The bends in the channels help to provide a smoother flow of liquids passing through the aerator.

An aerator and an associated method and system are provided. The aerator includes an elongate body having a central bore that extends between proximal and distal ends of the body, and a plurality of channels formed in an outer surface of the body, the plurality of channels extending between the proximal and distal ends, and including at least two bends along their lengths. The bends in the channels help to provide a smoother flow of liquids passing through the aerator.

A mixer is adapted to include: a flow path forming member formed with an internal flow path; and an insertion member inserted into the internal flow path, in which: the inner circumferential surface forming the internal flow path in the flow path forming member or the outer circumferential surface of the insertion member is formed with a first groove and a second groove merging with the first groove and branching from the first groove, and the inner circumferential surface and the outer circumferential surface are fitted to each other; and the first groove and the second groove are formed as a mixing flow path for, between the flow path forming member and the insertion member, branching and merging fluid flowing from one side of the internal flow path and guiding the fluid to the other side of the internal flow path.

An aerator and an associated method and system are provided. The aerator includes an elongate body having a central bore that extends between proximal and distal ends of the body, and a plurality of channels formed in an outer surface of the body, the plurality of channels extending between the proximal and distal ends, and including at least two bends along their lengths. The bends in the channels help to provide a smoother flow of liquids passing through the aerator.

A fluid supply pipe comprises a tubular body and an internal structure. The tubular body has an inlet through which a fluid flows in and an outlet through which the fluid flows out, and is of a hollow shape having an inner wall surface of a circular cross section. The internal structure is a prismatic shaft having a plurality of lateral faces configured to be housed in and fixed to the tubular body. A plurality of pillars are arranged in a mesh pattern on the lateral faces. A space formed between the plurality of pillars between the lateral faces of the internal structure and the inner wall surface of the tubular body serves as fluid flow paths, and the fluid is given a flow characteristic by passing through the flow paths between the plurality of pillars while the fluid is supplied from the inlet and flows out of the outlet.

A mixer is adapted to include: a flow path forming member formed with an internal flow path; and an insertion member inserted into the internal flow path, in which: the inner circumferential surface forming the internal flow path in the flow path forming member or the outer circumferential surface of the insertion member is formed with a first groove and a second groove merging with the first groove and branching from the first groove, and the inner circumferential surface and the outer circumferential surface are fitted to each other; and the first groove and the second groove are formed as a mixing flow path for, between the flow path forming member and the insertion member, branching and merging fluid flowing from one side of the internal flow path and guiding the fluid to the other side of the internal flow path.

A handheld bean end cutting device.

An aerator and an associated method and system are provided. The aerator includes an elongate body having a central bore that extends between proximal and distal ends of the body, and a plurality of channels formed in an outer surface of the body, the plurality of channels extending between the proximal and distal ends, and including at least two bends along their lengths. The bends in the channels help to provide a smoother flow of liquids passing through the aerator.

A fluid supply pipe according to an embodiment of the invention includes an internal structure and a pipe body configured to house the internal structure. The pipe body has an inlet and an outlet and has a circular cross-section. The internal structure includes a first portion for diffusing a fluid flowing into the fluid supply pipe through the inlet radially from the center of the fluid supply pipe, the first portion being placed in the inlet side of the pipe body when the internal structure is housed in the pipe body, a second portion placed downstream from the first portion and including a plurality of spiral vanes to swirl the fluid diffused by the first portion, and a third portion placed downstream from the second portion and including a plurality of protrusions on its outer circumferential surface.