TRANSVERSE TYPE BLOWERS
First Claim
Patent Images
1. A blower comprising:
- a base having a transverse passage defined therethrough and the transverse passage defining a first hole and a second hole in two opposite ends of the base, a motor having a shaft extending therefrom received in the transverse passage and a fan device coupled to the shaft to be driven by the motor extending from the second holes a ring being connected to the base and encloses the second hole, the ring including a tapered outer periphery extending to an open end of the fan device mounted to the tapered outer periphery of the ring; and
a casing connected to the base and covering the fan device, the casing including an outlet and an anti-back device engaged in the outlet, the anti-back device having a frame to which a plate is pivotably connected, the plate being opened in one direction and sealing the outlet when in an opposite direction.
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Abstract
A blower includes a base having a transverse passage for receiving a motor therein and a fan device driven by the motor extends from a hole in an end of the base. A casing including an outlet is connected to the base and mounted to the fan device. An anti-back device is engaged in the outlet and includes a frame to which a plate is pivotably connected. The plate is opened by the air sent via the fan device in one direction and seals the outlet when air goes in opposite direction.
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Citations
8 Claims
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1. A blower comprising:
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a base having a transverse passage defined therethrough and the transverse passage defining a first hole and a second hole in two opposite ends of the base, a motor having a shaft extending therefrom received in the transverse passage and a fan device coupled to the shaft to be driven by the motor extending from the second holes a ring being connected to the base and encloses the second hole, the ring including a tapered outer periphery extending to an open end of the fan device mounted to the tapered outer periphery of the ring; and
a casing connected to the base and covering the fan device, the casing including an outlet and an anti-back device engaged in the outlet, the anti-back device having a frame to which a plate is pivotably connected, the plate being opened in one direction and sealing the outlet when in an opposite direction. - View Dependent Claims (4, 8)
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2-3. -3. (Cancelled).
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5. A blower comprising:
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a base having a transverse passage defined therethrough and the transverse passage defining a first hole and a second hole in two opposite ends of the base, a motor having a shaft extending therefrom received in the transverse passage and a fan device coupled to the shaft to be driven by the motor extending from the second hole;
two support legs connected to the base and each support leg having a notch defined in an underside thereof, two top racks connected to the base and located opposite to the support legs, the top racks being sized to be engaged with the notches in the support legs; and
a casing connected to the base and covering the fan device, the casing including an outlet and an anti-back device engaged in the outlet, the anti-back device having a frame to which a plate is pivotably connected, the plate being opened in one direction and sealing the outlet when in an opposite direction. - View Dependent Claims (6)
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7. A blower comprising:
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a base having a transverse passage defined therethrough and the transverse passage defining a first hole and a second hole in two opposite ends of the base, a motor having a shaft extending therefrom received in the transverse passage and a fan device coupled to the shaft to be driven by the motor extending from the second hole, the base including a plurality of recessed areas on an outer periphery of the base, each recessed area forming a connection port in an inner periphery of the transverse passage, the motor having lugs which are fixed to the connection ports; and
a casing connected to the base and covering the fan device, the casing including an outlet and an anti-back device engaged in the outlet, the anti-back device having a frame to which a plate is pivotably connected, the plate being opened in one direction and sealing the outlet when in an opposite direction.
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Specification