Patent ID: 8424510

Claim:
An economizer ( 1 ) comprising a housing ( 10 ), at least two magnetic members ( 20 a , 20 b ) having sides of the same polarity facing each other, and at least one covering member ( 31 , 32 ), and characterized in that: the housing ( 10 ) has an interior space forming a primary receiving compartment ( 12 ), the housing ( 10 ) having at least one end forming an opening ( 14 a , 14 b ), the end forming inner-threaded holes ( 16 ) in a circumferential edge, the covering member ( 31 , 32 ) being attached to and closing the open end; the primary receiving compartment ( 12 ) is delimited by two opposite end spaced walls each having an inside surface that is recessed to form a slot ( 15 ); two magnetic members ( 20 a , 20 b ) are arranged in such a way that the sides thereof having the same polarity are set to face each other to be received in the primary receiving compartment ( 12 ); two metal boards ( 21 a and 21 b ) are set in the primary receiving compartment ( 12 ) and are fitted in the slots ( 15 ); a plurality of resilient elements ( 23 ) are mounted between the metal boards ( 21 a and 21 b ) and the magnetic members ( 20 a and 20 b ) in such a way that the resilient elements ( 23 ) provide a force to separate each of the magnetic members ( 20 a and 20 b ) from a respective one of the metal boards ( 21 a and 21 b ) so as to form a space (A) therebetween; two secondary receiving compartments are respectively formed in the housing on opposite sides of the primary receiving compartment to receive and hold therein far infrared particles; the covering member ( 31 , 32 ) forms holes ( 33 ) in a circumferential edge, the covering member ( 31 , 32 ) defining apertures ( 34 ); and the covering member ( 31 , 32 ) is secured to the open end of the housing ( 10 ) with bolts ( 17 ) engaging the inner-threaded holes.