US4259136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a centrifuge screen
Assignee: Sulzer Escher Wyss AG
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Filing: 1979-03-30
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Granted: 1981-03-31
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Expires: 1999-03-30
Abstract
Abstract A centrifuge screen, more particularly for a thrust-type centrifuge, having screen bars consisting of a hard material and extending axially of the centrifuge drum, said bars being fixed on a supporting frame, wherein the screen bars extending axially of the centrifuge drum bear over the entire length on the supporting frame and are connected to the supporting frame by an adhesive bonding which extends over the full length of the screen bars.
Inventors
- 👤 Leonhard Spiewok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:15
CPC Classifications
B; B04; B04B; B04B7/00; B04B7/08; B04B7/12; B04B7/16; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49604; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314; Y10T428/24322; Y10T428/24331; Y10T428/24802; Y10T428/24826; Y10T428/24851
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A method of fabricating a screen for the drum of a centrifuge wherein the screen comprises a supporting frame, and a plurality of transversely spaced, hard screen bars which extend axially of the drum and serve to support material being centrifuged as that material moves axially through the drum, and wherein each bar is supported by, and is adhesively connected to, the frame over the entire length of the bar, the method including the step of joining the screen bars to the frame by a synthetic resin adhesive which originally is in the form of a foil interposed between the screen bars and the frame, but which, during the sticking operation, is drawn into the spaces between mating surfaces of the screen bars and the frame and leaves open the remaining regions of the frame.
Claim 2
Independent Claim
135 words
A method of fabricating a screen for the drum of a centrifuge wherein the screen comprises a supporting frame, and a plurality of transversely spaced, hard screen bars which extend axially of the drum and serve to support material being centrifuged as that material moves axially through the drum, and wherein each bar is supported by, and is adhesively connected to, the frame over the entire length of the bar, the method including the step of joining the screen bars to the frame by a synthetic resin adhesive which originally is in the form of a foil interposed between the screen bars and the frame, but which, during the sticking operation, is drawn into the spaces between mating surfaces of the screen bars and the frame and leaves open the remaining regions of the frame.
References Cited (Backward Citations)
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US3444025A
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US3955754A
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |