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US4239119A
Expired / Lapsed
US
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Disc separator
Assignee: Individual
•
Filing: 1979-04-23
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Granted: 1980-12-16
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Expires: 1999-04-23
Abstract
Abstract An improved disc separator in which discs are mounted on retainers to form multiple disc units and the units are mounted end-to-end on a shaft and are clamped in place thereon. The discs have internal splines that project through and beyond splining slots in segments of the retainer, one spline only on each disc being wider than the others and adapted to fit closely in any of the slots in the retainer. The splines project slightly beyond the inner surface of the retainer and are swaged to hold the retainer segments rigidly in fully expanded positions.
Inventors
- 👤 Franz Kroell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:29
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/12; B07B1/14; B07B1/15; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7049
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
In a disc separator having at least one cylindrical shaft and a plurality of annular separator discs received on said shaft, retainer means for retaining said discs, said retainer means comprising an annular sleeve member mounted exteriorly on said shaft, said annular sleeve member comprising a plurality of arcuate segments, said arcuate segments having spaced rings of arcuate circumferentially-extending slots extending therethrough, said discs having internal splines extending into the slots.
Claim 2
Dependent Claim
71 words
In a disc separator having at least one cylindrical shaft and a plurality of annular separator discs received on said shaft, retainer means for retaining said discs, said retainer means comprising an annular sleeve member mounted exteriorly on said shaft, said annular sleeve member comprising a plurality of arcuate segments, said arcuate segments having spaced rings of arcuate circumferentially-extending slots extending therethrough, said discs having internal splines extending into the slots.
Claim 3
Dependent Claim
25 words
The separator of claim 1 wherein the segments include aligned pairs of circumferentially-extending half slots along the abutting side edges thereof to receive said splines.
Claim 4
Dependent Claim
28 words
The separator of claim 1 wherein the segments are mounted end-to-end on said shaft and include circumferentially-extending half width slots in the ends thereof to receive said splines.
Claim 5
Dependent Claim
43 words
The separator of claim 1 wherein each of said splines has a predetermined radial height, the thickness of said segments being less than said predetermined radial height whereby a portion of each of said splines extends inwardly of said segments toward said shaft.
Claim 6
Dependent Claim
32 words
The separator of claim 4 in which said portions of at least some of said splines extending inwardly of said arcuate segments are swaged to hold said segments in radially expanded positions.
Claim 7
Dependent Claim
17 words
The separator of claim 4 further comprising means to hold said arcuate segments in radially expanded positions.
Claim 8
Dependent Claim
42 words
The separator of claim 1 wherein one spline only on each disc is arcuately circumferentially larger than the other splines thereon, said one spline being adapted to fit closely within said slots precisely to locate said discs circumferentially relative to said segments.
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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) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |