Flexible bladed auger
First Claim
1. A method of constructing an auger for moving granular material and slurries of granular materials having a flexible outer blade portion comprising the following steps:
- cutting a doughnut shaped disc from flat rubberized and corded belting, said doughnut shaped disc having a split therethrough extending from an inner diameter to an outer diameter thereof; and
,fastening an inside portion of the doughnut shaped disc to a riged blade of a portion of an auger.
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Accused Products
Abstract
An auger for moving granular material and slurries of granular materials comprising: a shaft; a rigid inner blade portion fastened to and spiraling around the shaft; and a flexible substantially larger outer blade portion carried by the inner blade portion. In the preferred embodiment the flexible blade portion comprises belting cut into the shape of a split doughnut shaped disc. The split doughnut shaped disc has a larger inside diameter than the diameter of the shaft so that when it is rolled around the shaft and fastened to the rigid inner blade portion it extends more than one revolution therearound. The problem faced in the movement of granular materials is that rocks, stones or other non-uniformly large pieces of material predictably are present in the material being handled. These larger pieces sink to the bottom of the auger and jam between it and the bottom of a trough therebelow. These larger pieces either stop the auger until they are removed, or alternatively they are pulverised, damaging the auger. The dislosed auger having an outer flexible blade portion inexpensively and effectively solves this problem.
19 Citations
17 Claims
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1. A method of constructing an auger for moving granular material and slurries of granular materials having a flexible outer blade portion comprising the following steps:
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cutting a doughnut shaped disc from flat rubberized and corded belting, said doughnut shaped disc having a split therethrough extending from an inner diameter to an outer diameter thereof; and
,fastening an inside portion of the doughnut shaped disc to a riged blade of a portion of an auger. - View Dependent Claims (2, 3, 4)
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5. A flexible blade portion for an auger comprising:
a doughnut shaped disc having a split therethrough extending from an inner to an outer diameter thereof wherein the inner diameter of the disc is substantially larger than a shaft diameter of the auger so that when the flexible blade portion is installed thereon it will extend substantially more than one revolution therearound. - View Dependent Claims (6, 7, 8, 9)
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10. An auger for moving granular materials and slurries of granular materials comprising:
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a rigid spiralling inner blade portion fastened to and around a shaft; a flexible substantially larger outer blade portion carried by the inner blade portion;
wherein the flexible outer blade portion comprises belting fastened to the inner blade portion. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of moving a slurry of granular material comprising the following steps:
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fastening a rigid spiralling inner blade portion having opposite side portions extending generally radially from and around a shaft; and
,fastening a flexible substantially larger outer blade portion to one and only one opposite side portion of the inner blade portion. - View Dependent Claims (17)
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Specification