A portable, user shoulder supported spreader/blower unit includes an ergonomically configured housing which includes a section defining a storage bin for holding a quantity of salt or like chemical particulate material for spreading onto ground surfaces to prevent icing thereon in winter. A centrifu
A portable, user shoulder supported spreader/blower unit includes an ergonomically configured housing which includes a section defining a storage bin for holding a quantity of salt or like chemical particulate material for spreading onto ground surfaces to prevent icing thereon in winter. A centrifugal distributor disk is located in a housing space section below the bin and, a bin discharge aperture aligns over a peripheral area of the distributor disk. A user controllable closure member selectively alters bin discharge aperture size and, hence, outflow quantity from the bin onto the distributor disk, the distributor disk rotating at high speed propelling particulate material out of the housing through a discharge nozzle thereon at a high speed. e.g., 60 m/sec when the unit is user in a spreader mode. To further enhance carry of the particulate material from the housing, a fan impeller mounted in the housing in the common space wherein the distributor disk operates, is rotated at high speed to produce air flow supplementing energy imparted to the particulate material. When the unit is used in a blower mode such as in a leaf collection operation, high pressure air from an outside source can be introduced into the unit so the airstream discharge from the unit is optimized to that required for leaf blowing.
대표청구항▼
What is claimed is: 1. A portable spreader/blower comprising: a housing enclosure, the housing enclosure including a bin therein for holding material to be spread, the housing enclosure further having a discharge nozzle thereon; a centrifugal distributor disk rotatably mounted in said housing enclo
What is claimed is: 1. A portable spreader/blower comprising: a housing enclosure, the housing enclosure including a bin therein for holding material to be spread, the housing enclosure further having a discharge nozzle thereon; a centrifugal distributor disk rotatably mounted in said housing enclosure in an enclosure space region below said bin, the bin having an outflow aperture located therein above a face part of said distributor disk so that material discharging from said bin through said outflow aperture falls onto said distributor disk face part; a material flow guide tube extending downwardly from said bin outflow aperture to a location proximal the face part of said distributor disk; a rotary screw crushing means for crushing any agglomerated material mass present in outflow thereof from said bin; a closure member operable to selectively alter an effective bin outflow aperture size from between a zero opening size to a full opening size; means for rotating said distributor disk; and a shroud encasing said distributor disk, said shroud having an outlet in communication with said discharge nozzle so that material falling onto said rotating distributor disk face part is propelled by said distributor disk out of said housing enclosure through said discharge nozzle. 2. A portable spreader/blower in accordance with claim 1,in which said flow guide tube is configured as a funnel tapering inwardly in a direction of said distributor disk. 3. A portable spreader/blower in accordance with claim 2, in which said crushing means is disposed at an entry section length of said flow guide tube within said guide tube. 4. A portable spreader/blower in accordance with claim 1, in which said closure member is a sliding plate movable between full material outflow and no material outflow positions and at any others of plural selected positions between said full outflow and no outflow positions, said sliding plate being disposed at a lower end of said flow guide tube. 5. A portable spreader/blower in accordance with claim 1, further comprising a slitter member slidably mounted in said housing and including a knife member for slitting open a container package of material received in said bin thereby to release said material for outflow into said bin. 6. A portable spreader/blower in accordance with claim 1, further comprising a supporting belt receivable pair of clips carried at respective front and rear ends of said housing. 7. A portable spreader/blower in accordance with claim 1, wherein said housing enclosure includes a cover overlaying said bin, said cover being hinge connected to said housing for movement between cover open and closed positions. 8. A portable spreader/blower in accordance with claim 7, further comprising a switch actuatable by movement of said cover to open position for disabling said means for rotating said distributor disk. 9. A portable spreader/blower in accordance with claim 1, further comprising a nozzle extension piece removably connectable to said nozzle. 10. A portable spreader/blower in accordance with claim 9, further comprising cooperating connection means carried on said nozzle and said extension piece for connecting said extension piece with said nozzle. 11. A portable spreader/blower in accordance with claim 1, further comprising vibration means for vibrating at parts of a bin base and side walls connected to said base, thereby to produce movement of material in the bin toward said bin outflow aperture. 12. A portable spreader/blower comprising: a housing enclosure, the housing enclosure including a bin therein for holding material to be spread, the housing enclosure further having a discharge nozzle thereon; a centrifugal distributor disk rotatably mounted in said housing enclosure in an enclosure space region below said bin, the bin having an outflow aperture located therein above a face part of said distributor disk so that material discharging from said bin through said outflow aperture falls onto said distributor disk face part; a closure member operable to selectively alter an effective bin outflow aperture size from between zero opening size to a full opening size; means for rotating said distributor disk; a shroud encasing said distributor disk, said shroud having an outlet in communication with said discharge nozzle so that material falling onto said rotating distributor disk face is propelled by said distributor disk out of said housing enclosure through said discharge nozzle; a fan blade rotatably mounted in said housing enclosure in said enclosure space region; and means for rotating said fan blade to produce an airstream flow in said enclosure space region, said enclosure space region being in communication with said discharge nozzle whereby said airstream flows outwardly from said in company with any material propelled by said distributor disk. 13. A portable spreader/blower in accordance with claim 12, in which the means for rotating said distributor disk and the means for rotating said fan blade derive driving power from a common drive source. 14. A portable spreader/blower in accordance with claim 12, further comprising a clutch unit for engaging and disengaging said fan blade rotating means with said common drive source. 15. A portable spreader/blower in accordance with claim 12, wherein said common drive source includes an electric drive motor. 16. A portable spreader/blower in accordance with claim 12, further comprising material crushing means for crushing any agglomerated mass of material present in outflow thereof from said bin. 17. A portable spreader/blower comprising: a housing enclosure, the housing enclosure including a bin therein for holding material to be spread, the housing enclosure further having a discharge nozzle thereon; a centrifugal distributor disk rotatably mounted in said housing enclosure in an enclosure space region below said bin, the bin having an outflow aperture located therein above a face part of said distributor disk so that material discharging from said bin through said outflow aperture falls onto said distributor disk face part; a closure member operable to selectively alter an effective bin outflow aperture size from between zero opening size to a full opening size; means for rotating said distributor disk; a shroud encasing said distributor disk, said shroud having an outlet in communication with said discharge nozzle so that material falling onto said rotating disk face part is propelled by said distributor disk out of said housing enclosure through said discharge nozzle; and a quick connect fitting carried in said housing for connecting an airstream flow course in said housing with an outside source of high pressure air. 18. A portable spreader/blower comprising: a housing enclosure, the housing enclosure including a bin therein for holding material to be spread, the housing enclosure further having a discharge nozzle thereon; a centrifugal distributor disk rotatably mounted in said housing enclosure in an enclosure space region below said bin, the bin having an outflow aperture located therein above a face part of said distributor disk so that material discharging from said bin through said ouflow aperture falls onto said distributor disk face part; a closure member operable to selectively alter an effective bin outflow aperture size from between a zero opening size to a full opening size; means for rotating said distributor disk; and a shroud encasing said distributor disk, said shroud having an outlet in communication with said discharge nozzle so that material falling onto said rotating distributor disk face part is propelled by said distributor disk out of said housing enclosure through said discharge nozzle, said nozzle having an adjustable nozzle orifice to correspondingly adjust velocity of an airstream issuing from said nozzle.
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이 특허에 인용된 특허 (17)
Biggs ; Jr. Charles L. (2309 Regal Road Plano TX 75074), Apparatus for broadcasting granular material.
Gunzel ; Jr. Rudolph M. (Palm Springs CA) Demarest Scott W. (Caledonia WI) Edwards David J. (Racine WI) Shanklin Donald J. (Fullerton CA), Portable particulate material spreader.
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