Abstract: Provided is a magnetic filtration apparatus with a simple structure for permitting easy and effective discharge of magnetic substances from the inside of a flow passage to its outside, the magnetic substances being captured by attraction from a liquid to be treated by magnetic separation. The magnetic filtration apparatus includes a treatment container 12 having an inlet 26 and outlet 28 of the liquid, and a discharge port 36 of the separated magnetic substances. A magnetic apparatus 20 attached around the treatment container 12 attracts the separated magnetic substances to an inner wall of the treatment container 12, while cancellation of the effect of the magnetic field generated by the magnetic apparatus 20 allows the attracted magnetic apparatus to flow into a detachable collecting container 14 positioned below the treatment container 12, due to the gravity, through a communication passage 15.

Abstract: Provided is a magnetic filtration apparatus with a simple structure for permitting easy and effective discharge of magnetic substances from the inside of a flow passage to its outside, the magnetic substances being captured by attraction from a liquid to be treated by magnetic separation. The magnetic filtration apparatus includes a treatment container 12 having an inlet 26 and outlet 28 of the liquid, and a discharge port 36 of the separated magnetic substances. A magnetic apparatus 20 attached around the treatment container 12 attracts the separated magnetic substances to an inner wall of the treatment container 12, while cancellation of the effect of the magnetic field generated by the magnetic apparatus 20 allows the attracted magnetic apparatus to flow into a detachable collecting container 14 positioned below the treatment container 12, due to the gravity, through a communication passage 15.

Abstract: A cap includes a main unit fit onto the mouth of a double-walled container, a spout cylinder provided on the main unit, an inner stopper that is provided in the main unit, and a first inner valve. The inner stopper includes a communicating part that communicates with the inside of the inner container and the inside of the spout cylinder. The first inner valve includes a first valve body that covers the communicating part. The first valve body has passage holes. The first valve body being deformed from a closing position S toward an opening position O keeps acting as a partition between the communicating part and the spout cylinder.

Abstract: A cap includes a main unit fit onto the mouth of a double-walled container, a spout cylinder provided on the main unit, an inner stopper that is provided in the main unit, and a first inner valve. The inner stopper includes a communicating part that communicates with the inside of the inner container and the inside of the spout cylinder. The first inner valve includes a first valve body that covers the communicating part. The first valve body has passage holes. The first valve body being deformed from a closing position S toward an opening position O keeps acting as a partition between the communicating part and the spout cylinder.

Abstract: A cap includes a main unit fit onto the mouth of a double-walled container, a spout cylinder provided on the main unit, an inner stopper that is provided in the main unit, and a first inner valve. The inner stopper includes a communicating part that communicates with the inside of the inner container and the inside of the spout cylinder. The first inner valve includes a first valve body that covers the communicating part. The first valve body has passage holes. The first valve body being deformed from a closing position S toward an opening position O keeps acting as a partition between the communicating part and the spout cylinder.