US3640467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atomizer wheel with wear-resistant, sintered bushings
Assignee: GEA Process Engineering AS
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Filing: 1969-10-28
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Granted: 1972-02-08
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Expires: 1989-10-28
Abstract
Abstract An atomizer wheel for the atomization of dispersions of very highly wearing materials for example a caoline dispersion, said wheel comprising an annular bowl-shaped space defined by a hub, a cylindrical wall concentrically surrounding the hub, and a bottom part connecting said hub and said wall. The wall is provided with a number of holes lined with bushings of a highly wearproof sintered material embedded in cylindrical bushings of a material able to resist tensile stresses such as steel or plastic, said cylindrical bushings fitting loosely in the holes and abutting at their outer end an inwardly projecting edge of the holes and with their inner ends projecting a distance into the annular space.
Inventors
- 👤 Aage Moller
- 👤 Orla Straarup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:30
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; B01D1/20; B05; B05B; B05B3/00; B05B3/02; B05B3/10; B05B3/1007; B05B3/1021; B05B3/1028; Y; Y10; Y10S; Y10S239/00; Y10S239/19
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
176 words
In an atomizer wheel for atomization of slurries of highly abrasive materials having a bowl-shaped wheel with a cylindrical outer wall and a plurality of ejection openings disposed in said outer wall distributed around the circumference thereof, each said opening having its axis in a radial direction, and a lining, said lining having a first bushing constituting the sole defining path for exhausting slurry and made of a sintered weAr-resistant material with a conical outer surface, wherein the improvement comprises a second bushing fitted over said first bushing, said second bushing having an outside diameter small enough to define a clearance fit with said opening so that it will remain circular even if the opening is deformed when running, said second bushing being provided with shoulder means so as to be rotatable to positions throughout 360* to compensate for wear, said shoulder means engaging an inwardly extending edge of said opening and constituting the sole means preventing outward movement of said bushing from said opening but permitting free inward movement for easy removal or adjustment thereof.
Claim 2
Dependent Claim
176 words
In an atomizer wheel for atomization of slurries of highly abrasive materials having a bowl-shaped wheel with a cylindrical outer wall and a plurality of ejection openings disposed in said outer wall distributed around the circumference thereof, each said opening having its axis in a radial direction, and a lining, said lining having a first bushing constituting the sole defining path for exhausting slurry and made of a sintered weAr-resistant material with a conical outer surface, wherein the improvement comprises a second bushing fitted over said first bushing, said second bushing having an outside diameter small enough to define a clearance fit with said opening so that it will remain circular even if the opening is deformed when running, said second bushing being provided with shoulder means so as to be rotatable to positions throughout 360* to compensate for wear, said shoulder means engaging an inwardly extending edge of said opening and constituting the sole means preventing outward movement of said bushing from said opening but permitting free inward movement for easy removal or adjustment thereof.
Claim 3
Dependent Claim
15 words
An atomizer wheel as claimed in claim 1, wherein said second bushings are of steel.
Claim 4
Dependent Claim
18 words
An atomizer wheel as claimed in claim 1, wherein said second bushings are of a plastic polymer material.
Claim 5
Dependent Claim
25 words
An atomizer wheel as claimed in claim 1, wherein said first bushings are conical and in that said second bushings possess a corresponding internal conicity.
Claim 6
Dependent Claim
26 words
An atomizer wheel as claimed in claim 1, wherein said first bushings extend a distance outside said second bushings at the inwardly turned ends of same.
Claim 7
Dependent Claim
37 words
An atomizer wheel as claimed in claim 1, wherein said first bushings are shaped as bodies of revolution which over at least part of their length are of convex generatrices, and are molded into said second bushings.
Claim 8
Dependent Claim
20 words
An atomizer wheel as claimed in claim 6, wherein said first bushings are molded into said second bushings with prestressing.
Claim 9
Dependent Claim
19 words
An atomizer wheel as claimed in claim 1, wherein said second bushings extend a distance into said annular space.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |