초록 ▼

A portable fume exhauster and dryer includes a motor fan mounted in a housing having a supporting structure adapted to rest on a horizontal surface, such as a floor, or on an uneven or slanted, often narrow surface, for example, a window sill. The housing of the exhauster and dryer has flanges at in

A portable fume exhauster and dryer includes a motor fan mounted in a housing having a supporting structure adapted to rest on a horizontal surface, such as a floor, or on an uneven or slanted, often narrow surface, for example, a window sill. The housing of the exhauster and dryer has flanges at intake and exhaust openings to which grilles and/or conduits can be attached for remote intake or exhaust of fumes and moisture. Circuitry for the device may be provided to prevent electrical shock, power surges and thermal overload, and a switch may be proved for operation by an operator wearing protective clothing, such as heavy gloves.

대표청구항 ▼

A portable fume exhauster and dryer includes a motor fan mounted in a housing having a supporting structure adapted to rest on a horizontal surface, such as a floor, or on an uneven or slanted, often narrow surface, for example, a window sill. The housing of the exhauster and dryer has flanges at in

A portable fume exhauster and dryer includes a motor fan mounted in a housing having a supporting structure adapted to rest on a horizontal surface, such as a floor, or on an uneven or slanted, often narrow surface, for example, a window sill. The housing of the exhauster and dryer has flanges at intake and exhaust openings to which grilles and/or conduits can be attached for remote intake or exhaust of fumes and moisture. Circuitry for the device may be provided to prevent electrical shock, power surges and thermal overload, and a switch may be proved for operation by an operator wearing protective clothing, such as heavy gloves. n outer peripheral surfaces thereof; a plurality of coupling bars for connecting said plurality of coupling beads to form a predetermined three-dimensional framework; and a plurality of assembling plates for covering spaces of the predetermined three-dimensional framework to form a whole shape, wherein each of said assembling plates is provided with a plurality of "V" shaped protrusions on edges for engaging each of said coupling bars. 5. A block toy according to claim 4, wherein each edge of said assembling plates is divided into four areas on which four protrusions are formed for engaging said coupling bars. 6. A block toy comprising: a plurality of coupling beads each having 12 sides and comprising a plurality of insertion grooves on outer peripheral surfaces thereof; a plurality of coupling bars for connecting said plurality of coupling beads to form a predetermined three-dimensional framework, said coupling bars insertable into said insertion grooves of each of said coupling beads to have basic angles at 30°, 60° and 90°; and a plurality of assembling plates for covering spaces of the predetermined three-dimensional framework to form a whole shape. 7. A block toy comprising: a plurality of coupling beads each having 15 sides and comprising a plurality of insertion grooves on outer peripheral surfaces thereof; a plurality of coupling bars for connecting said plurality of coupling beads to form a predetermined three-dimensional framework, said plurality of coupling bars insertable into said plurality of insertion grooves of each of said plurality of coupling beads to have basic angles at 22.5°, 45°, 60°, 67.5° and 90°; and a plurality of assembling plates for covering spaces of the predetermined three-dimensional framework to form a whole shape.