Patent US3683556A successfully refreshed from Google Patents.
US3683556A
Expired / Lapsed
US
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Centrifugal blasting wheel
Assignee: Wheelabrator Corp
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Filing: 1970-04-13
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Granted: 1972-08-15
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Expires: 1990-04-13
Abstract
Abstract A centrifugal blasting wheel is disclosed which includes a rotating plate carrying spaced radially extending blades for propelling particulate treating material. The inner ends of the blades terminate short of the axis of rotation of the wheel to form a central opening. Impelling means rotating with the wheel receives particulate material from a source and imparts radial and tangential velocity components to it so that it is picked up by the faces of the blades and travels along those faces to be thrown from their ends. The blades are of such a size that when the impelling means is removed from the central opening a new blade may be inserted therein and moved radially outwardly to be mounted on the plate while a reverse action along the same path of movement may be used to remove old blades.
Inventors
- 👤 Raymond M Leliaert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:17
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/06; B24C5/062
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
194 words
In a centrifugal blasting wheel having: a pair of rotatable spaced circular side walls having a common axis of rotation; a plurality of angularly disposed spacing elements extending from one side wall to the other to hold them in spaced apart relationship; means at the center of said one of said side walls for mounting it on a rotatable shaft whereby the wheel may be rotated about said axis of rotation; said other of said side walls having an opening therein around said axis of rotation; a plurality of at least four angularly spaced radially extending blades mounted between said walls; each blade having an inner end and an outer end; the inner ends of said blades terminating short of said axis of rotation to define in conjunction with said opening in said other side wall a central circular opening of a given diameter; particulate propelling means removably mounted in said central circular opening; the improvement wherein each of said blades has a length in the radial direction slightly less than the diameter of said central circular opening whereby each of said blades may be removed from the wheel through said central circular opening.
Claim 2
Dependent Claim
194 words
In a centrifugal blasting wheel having: a pair of rotatable spaced circular side walls having a common axis of rotation; a plurality of angularly disposed spacing elements extending from one side wall to the other to hold them in spaced apart relationship; means at the center of said one of said side walls for mounting it on a rotatable shaft whereby the wheel may be rotated about said axis of rotation; said other of said side walls having an opening therein around said axis of rotation; a plurality of at least four angularly spaced radially extending blades mounted between said walls; each blade having an inner end and an outer end; the inner ends of said blades terminating short of said axis of rotation to define in conjunction with said opening in said other side wall a central circular opening of a given diameter; particulate propelling means removably mounted in said central circular opening; the improvement wherein each of said blades has a length in the radial direction slightly less than the diameter of said central circular opening whereby each of said blades may be removed from the wheel through said central circular opening.
Claim 3
Dependent Claim
25 words
The centrifugal blasting wheel of claim 1 including stop means on one of said side walls for limiting the movement of said blades radially outwardly.
Claim 4
Dependent Claim
17 words
The centrifugal blasting wheel of claim 2 including elements on said blades cooperating with said stop means.
Claim 5
Dependent Claim
29 words
The centrifgual blasting wheel of claim 1 including guide means on the interior surfaces of said side walls engageable with said blades to maintain them in angularly spaced positions.
Claim 6
Dependent Claim
22 words
The centrifugal blasting wheel of claim 4 including stop means in said guide means for limiting movement of said blades radially outwardly.
Claim 7
Dependent Claim
17 words
The centrifugal blasting wheel of claim 5 including elements on said blades cooperating with said stop means.
Claim 8
Dependent Claim
40 words
The centrifugal blasting wheel of claim 1 including guide channels on the interior surface of each side wall and shoulders on each side of said blades engageable in said guide channels whereby said blades are maintained in angularly spaced positions.
Claim 9
Dependent Claim
34 words
The centrifugal blasting wheel of claim 7 including stop lugs in said guide channels and shoulders on each blade engageable with said stop lugs whereby the movement of said blades radially outwardly is limited.
Claim 10
Dependent Claim
79 words
A blade for use with a centrifugal blasting wheel having an axis of rotation, said blade having: a throwing surface; a length extending from first and second ends; a side wall extending above said throwing surface on each side of said throwing surface extending from said first end thereof which is normally positioned toward the axis of rotation of the wheel when the blade is mounted in a wheel only to a point intermediate the length of the blade.
Claim 11
Dependent Claim
79 words
A blade for use with a centrifugal blasting wheel having an axis of rotation, said blade having: a throwing surface; a length extending from first and second ends; a side wall extending above said throwing surface on each side of said throwing surface extending from said first end thereof which is normally positioned toward the axis of rotation of the wheel when the blade is mounted in a wheel only to a point intermediate the length of the blade.
Claim 12
Dependent Claim
26 words
A blade as set forth in claim 9 including a stop member extending along at least one of said side walls transverse to said side wall.
Claim 13
Dependent Claim
97 words
A blade for use with a centrifugal throwing wheel having: a throwing surface; a length extending from first and second ends; a side wall on each side of said throwing surface extending from said first end which is normally positioned toward the center of a wheel when the blade is mounted in a wheel only to a point intermediate the length of the blade; and a stop member on at least one of said side walls engageable with a stop means on a wheel to limit radially outward movement of the blade when mounted in a wheel.
Claim 14
Dependent Claim
97 words
A blade for use with a centrifugal throwing wheel having: a throwing surface; a length extending from first and second ends; a side wall on each side of said throwing surface extending from said first end which is normally positioned toward the center of a wheel when the blade is mounted in a wheel only to a point intermediate the length of the blade; and a stop member on at least one of said side walls engageable with a stop means on a wheel to limit radially outward movement of the blade when mounted in a wheel.
Claim 15
Dependent Claim
22 words
A blade as set forth in claim 11 wherein said stop member comprises a shoulder extending transverse to said one side wall.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |