A separation device includes: a container that includes a storage portion for storing liquid containing magnetic particles; and a coil that separates the magnetic particles from the liquid by generating a magnetic field through application of current, causing a magnetic force to act on the magnetic particles in a state where the coil stops with respect to the storage portion, and causing the magnetic particles to move from the storage portion against gravity acting on the liquid containing the magnetic particles.

A separation device includes: a container that includes a storage portion for storing liquid containing magnetic particles; and a coil that separates the magnetic particles from the liquid by generating a magnetic field through application of current, causing a magnetic force to act on the magnetic particles in a state where the coil stops with respect to the storage portion, and causing the magnetic particles to move from the storage portion against gravity acting on the liquid containing the magnetic particles.

A front mount mechano-hydraulic magnetic sweeper apparatus having a debris collection and retention system. The magnetic sweeper apparatus addresses ferrous debris pickup with ground tracking capabilities ahead of its swept path. The magnetic sweeper apparatus features a large magnet hanging out-front of the vehicle or primary mover, which allows for ferrous debris pickup and retention utilizing complete wrap around technology. Objects as small as paperclips, up to large items like rail spikes and steel axles, are able to be safely retrieved and retained beneath the magnet. Obstructions such as sharp ramps, speedbumps, potholes, small curbs, ruts, and other rough terrain can be traversed without having to sacrifice lifting the magnet which reduces magnetic performance. A quadric cycle chain mechanism allows for magnet clean off and debris storage in a smooth and controlled motion.

A front mount mechano-hydraulic magnetic sweeper apparatus having a debris collection and retention system. The magnetic sweeper apparatus addresses ferrous debris pickup with ground tracking capabilities ahead of its swept path. The magnetic sweeper apparatus features a large magnet hanging out-front of the vehicle or primary mover, which allows for ferrous debris pickup and retention utilizing complete wrap around technology. Objects as small as paperclips, up to large items like rail spikes and steel axles, are able to be safely retrieved and retained beneath the magnet. Obstructions such as sharp ramps, speedbumps, potholes, small curbs, ruts, and other rough terrain can be traversed without having to sacrifice lifting the magnet which reduces magnetic performance. A quadric cycle chain mechanism allows for magnet clean off and debris storage in a smooth and controlled motion.

A gravity clean-off magnetic sweeper apparatus that connects to the front of industrial equipment or industrial vehicles where a bucket would normally go. The magnetic sweeper is lifted off the ground slightly and driven around an area to pick up metal debris. The collected debris is then cleaned off of the bottom of the invention by lifting it with the machine and pivoting it downward. As the magnetic sweeper is pivoted downward, the mass of the magnets, which is greater than its attraction force to the metal debris attached to the pan in between the magnet and the debris, allows the magnet to hang vertically, as the pan is forced away from the magnet. This removes the metal debris away from the magnetic field and allows it to fall from the magnetic sweeper.

A gravity clean-off magnetic sweeper apparatus that connects to the front of industrial equipment or industrial vehicles where a bucket would normally go. The magnetic sweeper is lifted off the ground slightly and driven around an area to pick up metal debris. The collected debris is then cleaned off of the bottom of the invention by lifting it with the machine and pivoting it downward. As the magnetic sweeper is pivoted downward, the mass of the magnets, which is greater than its attraction force to the metal debris attached to the pan in between the magnet and the debris, allows the magnet to hang vertically, as the pan is forced away from the magnet. This removes the metal debris away from the magnetic field and allows it to fall from the magnetic sweeper.

In one aspect, a system for isolating particles includes a first array of magnets, a second array of magnets arranged generally in parallel with and spaced apart from the first array of magnets, and a microfluidic device. The microfluidic device includes a substrate, an inlet arranged on the substrate and configured to receive a fluid sample, an outlet arranged on the substrate, a first region of the substrate including a channel connected to the inlet, where the first region of the substrate is arranged to sandwich the channel between the first and second arrays of magnets, and a second region of the substrate in fluid communication with the channel and including a particle capture zone containing a plurality of particle capture sites, where each particle capture site including a receptacle sized to confine a first type of particle and an opening in fluid communication with the receptacle, wherein a size of the receptacle is larger than a size of the opening.

In one aspect, a system for isolating particles includes a first array of magnets, a second array of magnets arranged generally in parallel with and spaced apart from the first array of magnets, and a microfluidic device. The microfluidic device includes a substrate, an inlet arranged on the substrate and configured to receive a fluid sample, an outlet arranged on the substrate, a first region of the substrate including a channel connected to the inlet, where the first region of the substrate is arranged to sandwich the channel between the first and second arrays of magnets, and a second region of the substrate in fluid communication with the channel and including a particle capture zone containing a plurality of particle capture sites, where each particle capture site including a receptacle sized to confine a first type of particle and an opening in fluid communication with the receptacle, wherein a size of the receptacle is larger than a size of the opening.

In one aspect, a system for isolating particles includes a first array of magnets, a second array of magnets arranged generally in parallel with and spaced apart from the first array of magnets, and a micro fluidic device. The micro fluidic device includes a substrate, an inlet arranged on the substrate and configured to receive a fluid sample, an outlet arranged on the substrate, a first region of the substrate including a channel connected to the inlet, where the first region of the substrate is arranged to sandwich the channel between the first and second arrays of magnets.

In one aspect, a system for isolating particles includes a first array of magnets, a second array of magnets arranged generally in parallel with and spaced apart from the first array of magnets, and a micro fluidic device. The micro fluidic device includes a substrate, an inlet arranged on the substrate and configured to receive a fluid sample, an outlet arranged on the substrate, a first region of the substrate including a channel connected to the inlet, where the first region of the substrate is arranged to sandwich the channel between the first and second arrays of magnets.