Claims
- 1. A device for airless blast with particulate media comprising wheel blades mounted for rotational movement in a vertically disposed plane, means offset laterally from the plane of rotation of the blades for feeding particulate material from a feeding opening in crosswise alignment with the inner end portions of the blades to the inner end portions of the wheel blades for engagement by the blades during rotational movement of the wheel at high speed whereby the engaged particulate media is projected from the ends of the blades comprising a vertically disposed tubular member having vertically disposed side walls and an inlet opening at the top and an opening in the vertically disposed side wall below the inlet and a horizontally disposed hollow body having an open end portion extending from and in registry with the opening in the side wall of the tubular member and a feed opening in an end portion facing the wheel blades and laterally offset from the lateral edges thereof for flowing particulate media from the inlet, through the tubular member and hollow body onto the inner end portions of the blades.
- 2. A device as claimed in claim 1 in which the opening in the side wall is circular and the hollow body is circular in cross section and of decreasing diameter from the open end in registry with the side wall opening of the tubular member to the feed opening and having its axis substantially horizontally disposed along the line equidistant from the side of the member with the open end portion at the base in communication with the opening in the side wall of the tubular member and with the feed opening at the apex.
- 3. A device as claimed in claim 2 which includes means for mounting the hollow body for rotational movement about a horizontal axis to enable adjustment of the feed opening circumferentially relative to the bladed wheel.
- 4. A device as claimed in claim 3 which includes an annular shroud about the opening in the side wall of the tubular member and an annular flange on the hollow body which receives the shroud in telescoping relation and means for latching the hollow body in its adjusted relation.
- 5. A device as claimed in claim 1, in which the wheel is a one piece wheel.
- 6. A device as claimed in claim 1, in which the blades extend tangentially in opposite directions from diametrically opposed sides of the hub.
- 7. A device as claimed in claim 1, in which the blades extend in spaced parallel planes.
- 8. A device as claimed in claim 1, in which the blades have a front face and a back wall and which includes a flanged portion extending perpendicularly from the lower edge portion of the front face substantially throughout the length of the blade and a flanged portion extending perpendicularly from the upper edge portion of the front face from an inner end spaced a short distance from the hub to the outer end.
- 9. A device for airless blast with particulate media comprising a housing having an open side, a two-bladed wheel mounted within the housing for rotational movement about the central horizontally disposed axis, means for imparting rotational movement to the wheel, a means offset laterally from the plane of rotation of the blades for feeding particulate media from a feed opening in crosswise alignment with the end portions of the blades onto the inner end portion of the blades but offset laterally from the central axis, comprising a vertically disposed tubular member having vertically disposed side walls and an inlet opening at the top and an opening in the side wall below the inlet, a horizontally disposed hollow body having an open end portion in registry with the opening in the side wall of the tubular member and a feed opening in an end portion facing the wheel blades and laterally offset from the lateral edges thereof for flowing particulate media from the inlet through the tubular member and hollow body onto the inner end portion of the blades whereby the engaged particulate media is displaced centrifugally over the face of the blades and projected from the blades through the open side.
- 10. A device as claimed in claim 9, in which the wheel is a one piece wheel.
- 11. A device as claimed in claim 9, in which the blades extend tangentially in opposite directions from diametrically opposed sides of the hub.
- 12. A device as claimed in claim 9, in which the blades extend in spaced parrallel planes.
- 13. A device as claimed in claim 9 in which the hollow body is of decreasing cross section, and in which the feed opening has a lengthwise dimension in the direction of the rotation of the wheel that is greater than the crosswise dimension whereby the time of flow of media onto the face of the blade is increased thereby to increase the length of the coverage of the media thrown from the outer ends of the blades.
- 14. A device as claimed in claim 13, in which the means for imparting rotational movement to the wheel within the housing comprises a shaft which extends through 2 side wall of the housing, means for removably mounting the hub of the wheel onto the through extending portion of the shaft for conjoint rotational movement and means for imparting rotational movement to the shaft.
- 15. A device as claimed in claim 13, in which the feed opening is of crescent shape with the lengthwise dimension extending in the direction of rotation of the wheel.
- 16. A device as claimed in claim 13, in which the feed opening is in the shape of an oblong with the major dimension in the direction of rotation of the wheel.
- 17. A device as claimed in claim 9 in which the opening in the side wall is circular and the hollow body is circular in cross section and of decreasing diameter from the open end in registry with the side wall opening of the tubular member to the feed opening having its axis substantially horizontally disposed along a line equidistant from the side of the member with the open end portion at the base in communication with the opening in the side wall of the tubular member and with the feed opening at the apex.
- 18. A device as claimed in claim 9 in which the axis of the hollow body is aligned with the axis of the wheel with the feed opening offset from the axis for crosswise alignment with the inner end portions of the blades.
- 19. A device as claimed in claim 9 which includes means for mounting the hollow body for rotational movement about a horizontal axis to enable adjustment of the feed opening circumferentially relative to the bladed wheel.
- 20. A device as claimed in claim 9 which includes an annular shroud about the opening in the side wall of the tubular member and an annular flange on the hollow body which receives the shroud in telescoping relation and means for latching the hollow body in its adjusted relation.
Parent Case Info
This is a continuation-in-part of our copending application Ser. No. 909,770, filed May 26, 1978, and entitled "Airless Centrifugal Blast Device" now U.S. Pat. No. 4,207,711.
US Referenced Citations (6)
Foreign Referenced Citations (6)
Number |
Date |
Country |
538349 |
Nov 1931 |
DE2 |
1015343 |
Sep 1957 |
DEX |
522676 |
Aug 1955 |
ITX |
117608 |
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CHX |
319278 |
Oct 1930 |
GBX |
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SUX |
Non-Patent Literature Citations (1)
Entry |
A. P. C. Application of Grocholl, Ser. No. 250446, published 4/43. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
909770 |
May 1978 |
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