초록 ▼

An air blower including a flow-thru motor and fan unit encapsulated in resilient foam rubber layer within a substantially cylindrical plastic casing is provided which operates very quietly, delivers a sufficient quantity of warm pressurized air and filters the air which flows therethrough. The air b

An air blower including a flow-thru motor and fan unit encapsulated in resilient foam rubber layer within a substantially cylindrical plastic casing is provided which operates very quietly, delivers a sufficient quantity of warm pressurized air and filters the air which flows therethrough. The air blower is eloquently simple in design and relatively inexpensive to manufacture. The air blower incorporates a number of safety features including an outlet structure which prevents the introduction of water into the interior of the blower and a ground fault circuit interrupter. The air which flows through the blower is channeled through the motor to cool the motor and at the same time heat the air flowing through the blower. The resilient foam encapsulation separates the noise and vibration of the motor and fan unit from the casing. The casing includes a plurality of radial air inlets in its base and an air outlet in the side of the casing adjacent its upper end. Consequently, the foam encapsulation above and below the motor and fan unit serve to filter the air passing from the air inlets to the air outlet and reduce the noise which emanates from the outlet and inlets.

대표청구항 ▼

A low-noise air blower for use as a source of pressurized air for hydro-therapy systems, air filtration systems or other appliances comprising: an outer casing having a lower section with at least one air inlet and an upper section with at least one air outlet, a flow-thru motor and fan unit located

A low-noise air blower for use as a source of pressurized air for hydro-therapy systems, air filtration systems or other appliances comprising: an outer casing having a lower section with at least one air inlet and an upper section with at least one air outlet, a flow-thru motor and fan unit located inside of said casing and adapted to pull air in through said air inlet and force air out through said air outlet, and a layer of noise and vibration dampening resilient foam located between said flow-thru motor and fan unit and said casing, said layer of foam separating said motor and fan unit from said casing, supporting and suspending said motor and fan unit, and including upper and lower cup-like foam elements each having respective air permeable porous areas to allow for the passage of air from said air inlet of said casing to said flow-thru motor and fan unit and from said flow-thru motor and fan unit to said air outlet in said casing, whereby said flow-thru motor and fan unit is encapsulated and suspended within said casing by said layer of foam without any rigid connection between said casing and said flow-thru motor and fan unit.