US3974026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt press with rotatable cylinder and adjustable pressure member
Assignee: Sulzer Escher Wyss GmbH
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Filing: 1974-02-28
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Granted: 1976-08-10
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Expires: 1994-02-28
Abstract
Abstract The belt press is constructed with a rotatable cylinder, a guide belt to confine the material between the belt and cylinder, and a press member for pressing the belt towards the cylinder to remove water from the confined material. The press member has a curved face slightly spaced from the belt as well as a pressure chamber which delivers a pressurized medium, such as water or air, against the belt over the face of the press member.
Inventors
- 👤 Stephen Derek Emson
- 👤 Christopher Stephen Norton
- 👤 James Royston Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:03
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/0209; B; B30; B30B; B30B9/00; B30B9/02; B30B9/24; B30B9/241; B30B9/246; F; F26; F26B; F26B13/00; F26B13/24; F26B13/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
140 words
A belt press comprising a rotatable cylinder, a guide belt guided over a peripheral portion of said cylinder to confine material to be pressed therebetween, a pressure member having at least one chamber for connection to a means for supplying a pressure medium, said chamber being disposed adjacent said guide belt, said pressure member further having an arcuate portion corresponding to the shape of said cylinder and disposed in opposition to said peripheral portion of said cylinder, said means defining at least one aperture in said arcuate portion to communicate with said chamber, and an adjusting means for adjusting the distance of said pressure member from said belt, said adjusting means including a stationary guide, a pin mounted on said pressure member and guided in said guide, and an adjusting screw engaging said pin and rotatably mounted in said guide.
Claim 2
Dependent Claim
140 words
A belt press comprising a rotatable cylinder, a guide belt guided over a peripheral portion of said cylinder to confine material to be pressed therebetween, a pressure member having at least one chamber for connection to a means for supplying a pressure medium, said chamber being disposed adjacent said guide belt, said pressure member further having an arcuate portion corresponding to the shape of said cylinder and disposed in opposition to said peripheral portion of said cylinder, said means defining at least one aperture in said arcuate portion to communicate with said chamber, and an adjusting means for adjusting the distance of said pressure member from said belt, said adjusting means including a stationary guide, a pin mounted on said pressure member and guided in said guide, and an adjusting screw engaging said pin and rotatably mounted in said guide.
Claim 3
Dependent Claim
40 words
A belt press as set forth in claim 1 wherein said peripheral portion of said cylinder is permeable and which further comprises means within said cylinder for removing liquid emerging from a liquid-containing material pressed between said belt and cylinder.
Claim 4
Dependent Claim
25 words
A belt press as set forth in claim 1 which further comprises a movable water-impermeable pressure belt between said guide belt and said pressure member.
Claim 5
Dependent Claim
30 words
A belt press as set forth in claim 3 wherein said impermeable belt is endless and which further comprises guide rollers for guiding said endless belt about said pressure member.
References Cited (Backward Citations)
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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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |