US4717486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of filtering suspension
Assignee: Sanshin Mfg Co Ltd
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Filing: 1986-09-26
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Granted: 1988-01-05
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Expires: 2006-09-26
Abstract
Abstract In a method of filtering and condensing a suspension containing a solid suspended substance, the improvement comprising the step of vibrating a board member provided in the suspension in opposed relation with a filtration surface in a direction parallel to the filtration surface. The board member is provided at a distance of preferably 10 mm or less from the filtration surface.
Inventors
- 👤 Monpei Shirato
- 👤 Eiji Iritani
- 👤 Aisaburo Yagishita
- 👤 Kazuhiko Yagishita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:14
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/62; B01D29/70; B01D29/72; B01D29/76; B01D29/86
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
91 words
A method of filtering and condensing a liquid suspension containing a solid suspended substance, comprising the steps of: providing a chamber having an outlet in the lower portion thereof for containing said suspension; providing a filter across the outlet to said chamber; providing a flat board member disposed within said chamber and contained within a plane parallel to the plane containing said filter surface and spaced adjacent thereto; and vibrating said board member in said suspension in opposed relation with said filter surface in a direction parallel to said filter surface.
Claim 2
Independent Claim
91 words
A method of filtering and condensing a liquid suspension containing a solid suspended substance, comprising the steps of: providing a chamber having an outlet in the lower portion thereof for containing said suspension; providing a filter across the outlet to said chamber; providing a flat board member disposed within said chamber and contained within a plane parallel to the plane containing said filter surface and spaced adjacent thereto; and vibrating said board member in said suspension in opposed relation with said filter surface in a direction parallel to said filter surface.
Claim 3
Dependent Claim
26 words
The method as defined in claim 1, wherein said board member is spaced at a distance of no more than 10 mm from said filter surface.
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) | 1991-01-04 | 1991-07-06 | 1992-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-04 | 1995-07-06 | 1996-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-04 | 1999-07-06 | 2000-01-05 | $7700.00 | Window Closed / Lapsed |