Portable fan device for forced air heating
First Claim
1. A readily portable fan device usable both as a cooling fan for circulating ambient air and as a device for increasing the flow of air through a register, comprising a casing containing both a fan impeller and an electric motor for driving the impeller, said casing having an air outlet and a skirt surrounding a bottom air inlet and capable of at least partially sealing a space around said register, and wherein extendible leg means are provided, which, when extended, hold the casing skirt clear of a floor contacted by the leg means and allow the device to draw in ambient air under the skirt when used as a cooling fan;
- said extendible leg means including two shafts rotatably supported adjacent the bottom of said casing and having off-set portions movable from a position close to the casing bottom to an extended position.
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Accused Products
Abstract
A readily portable fan device which is usable both as a cooling fan for circulating ambient air and as a device for increasing the flow of air through a register, comprises a housing containing both a fan impeller and an electric motor for driving the impeller, the housing having a skirt surrounding a bottom air inlet and capable of at least partially sealing a space around such register. Extendable leg means are provided which, when extended, hold the housing skirt clear of a floor and allow the device to draw in air under the skirt when used as a cooling fan.
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Citations
7 Claims
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1. A readily portable fan device usable both as a cooling fan for circulating ambient air and as a device for increasing the flow of air through a register, comprising a casing containing both a fan impeller and an electric motor for driving the impeller, said casing having an air outlet and a skirt surrounding a bottom air inlet and capable of at least partially sealing a space around said register, and wherein extendible leg means are provided, which, when extended, hold the casing skirt clear of a floor contacted by the leg means and allow the device to draw in ambient air under the skirt when used as a cooling fan;
- said extendible leg means including two shafts rotatably supported adjacent the bottom of said casing and having off-set portions movable from a position close to the casing bottom to an extended position.
- View Dependent Claims (2, 3, 4, 5)
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6. A readily portable fan device usable both as a cooling fan for circulating ambient air and as a device for increasing the flow of air through a register, comprising a casing containing both a fan impeller and an electric motor for driving the impeller, said casing having an air outlet and a skirt surrounding a bottom air inlet and having edges capable of at least partially sealing a space around said register, the impeller being arranged to direct air generally upwardly through an outlet in the casing when the device is resting on said skirt, said casing having side portions one of which is provided with a dove-tail groove communicating with the bottom air inlet, said motor having a mounting including a part slidable in said dove-tail groove.
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7. A readily portable fan device usable both as a cooling fan for circulating ambient air and as a device for increasing the flow of air through a register, comprising a casing containing both a fan impeller and an electric motor for driving the impeller, said casing having an air outlet and a skirt surrounding a bottom air inlet and capable of at least partially sealing a space around said register, and wherein extendible leg means are provided, which, when extended, hold the casing skirt clear of a floor contacted by the leg mens and allow the device to draw in ambient air under the skirt when used as a cooling fan;
- wherein said casing has side portions one of which is provided with a dove-tail groove communicating with the bottom air inlet and wherein said motor has a mounting including a part slidable in said dove-tail groove.
Specification