An convection oven with a removable blower wheel system is provided. The oven includes motor with a corresponding motor shaft, a first hub engageable with the motor shaft, a blower wheel, and a second hub. Each of the first hub, blower wheel, and second hub include corresponding radial apertures for
An convection oven with a removable blower wheel system is provided. The oven includes motor with a corresponding motor shaft, a first hub engageable with the motor shaft, a blower wheel, and a second hub. Each of the first hub, blower wheel, and second hub include corresponding radial apertures formed in consistent positions on each component. A plurality of shafts extend through each of the first and second hubs and the blower wheel to cause the three components to rotate together.
대표청구항▼
What is claimed is: 1. A removable blower wheel assembly comprising: (a) a first hub including a disc portion and a protruded portion and a plurality of shafts extending from the disc portion of the first hub, wherein a central aperture is defined through the disc and protruded portions, wherein th
What is claimed is: 1. A removable blower wheel assembly comprising: (a) a first hub including a disc portion and a protruded portion and a plurality of shafts extending from the disc portion of the first hub, wherein a central aperture is defined through the disc and protruded portions, wherein the disc portion is configured to receive the plurality of shafts that extend in parallel to the protruded portion; (b) a blower wheel defining a central hole and a plurality of first apertures spaced outward from the central hole, wherein the protruded portion of the first hub extends through the central hole; (c) a second hub including a disc portion and a protruded portion, wherein the protruded portion of the first hub extends within and through a portion of the protruded portion of the second hub, and a plurality of second apertures defined in the second hub, wherein the plurality of first and second apertures are coaxially aligned and receive the plurality of shafts when the first hub, blower wheel, and second hub are engaged. 2. The assembly of claim 1, wherein a portion of each of the plurality of shafts are inserted into a plurality of third apertures defined on the first hub. 3. The assembly of claim 2, wherein the plurality of shafts are removeably inserted through the plurality of third apertures of the first hub. 4. The assembly of claim 2, wherein the plurality of shafts are respectively substantially fixed to one of the plurality of first apertures, second apertures, or third apertures. 5. The assembly of claim 1, wherein a distal end of a motor shaft extends through the central aperture of the first hub, with an end surface of the distal end of the motor shaft being substantially flush with an end surface of the protrusion of the first hub when the first hub, blower wheel, and second hub are engaged together by the plurality of shafts. 6. The assembly of claim 2, wherein a centerline of each of the plurality of first, second, and third apertures are formed at the same radial distance from the central aperture of the first hub. 7. The assembly of claim 6, wherein each of the first, second, and third apertures are formed with a consistent arc length between each adjacent respective first, second, and third aperture. 8. A removable blower wheel assembly comprising: (a) a first hub including a disc portion and a protruded portion and a plurality of shafts extending from the disc portion of the first hub, wherein a central aperture is defined through the disc and protruded portions, wherein the disc portion is configured to receive the plurality of shafts that extend in parallel to the protruded portion; (b) a blower wheel defining a central hole and a plurality of first apertures spaced outward from the central hole, wherein the protruded portion of the first hub extends through the central hole; (c) a second hub including a disc portion and a protruded portion, wherein the protruded portion of the first hub extends within and through a portion of the protruded portion of the second hub, and a plurality of second apertures defined in the second hub, wherein the plurality of first and second apertures receive the plurality of shafts when the first hub, blower wheel, and second hub are engaged, wherein a distal end of a motor shaft extends through the central aperture of the first hub, with an end surface of the distal end of the motor shaft being substantially flush with an end surface of the protrusion of the first hub when the first hub, blower wheel, and second hub are engaged together by the plurality of shafts, wherein the distal end of the motor shaft includes a female threaded portion that extends within motor shaft from the end surface. 9. The assembly of claim 8, further comprising a fastener with male threads that is engageable with the female threaded portion of the motor shaft to rigidly attach the first hub, the blower wheel, and the second hub each to the distal end of the motor shaft. 10. The assembly of claim 9, wherein the distal end of the motor shaft includes a key that engages a corresponding keyway formed in the central aperture of the first hub. 11. A convection oven comprising: (a) a housing forming an internal cooking region; (b) a motor with an output shaft that rotates during motor operation; (c) a first hub including a disc portion and a protruded portion and a plurality of shafts extending therefrom substantially parallel to a rotational axis of first hub, wherein a central aperture extends through the disc and protruded portions; wherein the disc portion is configured to receive the plurality of shafts extending in parallel to the protruded portion; (d) a blower wheel defining a central hole and a plurality of first apertures formed radially outward from the central hole, wherein the protruded portion of the first hub extends through the central hole; (e) a second hub including a disc portion and a protruded portion, wherein the protruded portion of the first hub extends within and through the protruded portion of the second hub, and a plurality of second apertures defined in the disc portion of the second hub, wherein a centerline of each of the plurality of first and second apertures is coaxial with the centerlines of the respective other of the plurality of first and second apertures, and the plurality of shafts extend through the respective plurality of first and second apertures when a portion of the motor shaft extends through the first hub, the blower wheel, and the second hub. 12. The assembly of claim 11, wherein the plurality of first and second apertures are each formed at the same radial distance from a centerline of the central aperture of the first hub. 13. The assembly of claim 11, wherein each of the plurality of first and second apertures are formed with a consistent arc length between each adjacent respective first and second apertures and the respective shafts. 14. The assembly of claim 11, wherein the plurality of shafts are inserted through a plurality of third apertures defined within the disc portion of the first hub. 15. The assembly of claim 14, wherein each of the plurality of shafts are threaded and are engaged with corresponding female threads within one of the respective plurality of first, second, or third the third apertures. 16. The assembly of claim 11, wherein a distal end of the motor shaft extends through the central aperture of the first hub with an end surface of the distal end of the motor shaft being substantially flush with an end surface of the protrusion of the first hub when the first hub, blower wheel, and second hub are engaged. 17. The assembly of claim 16, wherein the distal end of the motor shaft includes a recessed portion that extends within the motor shaft from the end surface. 18. The assembly of claim 17, further comprising a fastener with a male portion that is engageable with the recessed portion on the distal end of the motor shaft. 19. The assembly of claim 16, wherein the motor shaft includes a key that engages a corresponding keyway formed in the central aperture of the first hub. 20. A removable blower wheel assembly comprising: (a) a first hub including a disc portion and a protruded portion, wherein a central aperture extends through the disc portion and the protruded portion; (b) a blower wheel defining a central hole to accept the protruded portion of the first hub; (c) a second hub including a disc portion and a protruded portion, wherein the protruded portion of the first hub extends within and through the protruded portion of the second hub; and (d) a means to removeably connect each of the first hub, the blower wheel, and the second hub, the means comprising a plurality of first holes disposed around a circumference of the disc portion of the second hub, a plurality of second holes disposed around a circumference of the blower wheel that are each coaxially aligned with a respective one of the first holes when the first and second hubs are connected, and a plurality of shafts extending from the first hub that each extend through one of each of the first and second holes.
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이 특허에 인용된 특허 (2)
Harrison Robert G. (Seattle WA), Appliance for making bread and for cooking bagels.
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