Abstract: A fan-coupling device with a unitary magnetic pole is disclosed. The magnetic pole is of a unitary, ring-shaped construction and includes a choke space and a ridge that promote an increased amount of magnetic flux generated by an electromagnet to travel to a magnetic armature on a fluid flow valve, resulting an increase in the amount of magnetic force that acts upon the valve. This is an improvement over the prior art two-piece magnetic pole structure and over a unitary magnetic pole without the choke space and ridge. The magnetic pole also includes apertures in which protrusions on a sound dampening gasket are inserted to reduce the noise resulting from the armature striking the magnetic pole.

Abstract: A fan-coupling device with a unitary magnetic pole is disclosed. The magnetic pole is of a unitary, ring-shaped construction and includes a choke space and a ridge that promote an increased amount of magnetic flux generated by an electromagnet to travel to a magnetic armature on a fluid flow valve, resulting an increase in the amount of magnetic force that acts upon the valve. This is an improvement over the prior art two-piece magnetic pole structure and over a unitary magnetic pole without the choke space and ridge. The magnetic pole also includes apertures in which protrusions on a sound dampening gasket are inserted to reduce the noise resulting from the armature striking the magnetic pole.

Abstract: A fluid cooling device carrying cooling fins thereon also carries a plurality of series of plates one above the other. Each of the series of plates is composed of an upper and a lower plate which are in spaced relationship with one another. The space between the upper and lower plates of each of said series of plates define a channel therewithin which is connected to the corresponding channels in each of the series of plates with all of said channels being also connected to inlet and outlet openings. The portions of each of the plates within each of the channels defined therein carrying projecting baffles therewithin which are adapted to cause turbulence in the fluid to be cooled which passes through said channels from the inlet opening to the outlet opening of the device.

Abstract: A fluid cooling device carrying cooling fins thereon also carries a plurality of series of plates one above the other. Each of the series of plates is composed of an upper and a lower plate which are in spaced relationship with one another. The space between the upper and lower plates of each of said series of plates define a channel therewithin which is connected to the corresponding channels in each of the series of plates with all of said channels being also connected to inlet and outlet openings. The portions of each of the plates within each of the channels defined therein carrying projecting baffles therewithin which are adapted to cause turbulence in the fluid to be cooled which passes through said channels from the inlet opening to the outlet opening of the device.