US3990631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal scraper and separator apparatus
Assignee: Individual
•
Filing: 1975-05-09
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Granted: 1976-11-09
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Expires: 1995-05-09
Abstract
Abstract A continuously operable apparatus including a rotatably positioned container having an open upper end and with a stack of annular discs in the container where the discs are of uniform inner and outer diameters for a major portion of the height of the stack but being of progressively smaller inner diameters approaching the upper end of the stack to form a conically shaped inner surface. A helical scraper means is positioned within the stack of discs and has an outer peripheral surface complementary to the inner surfaces of the stacked discs. Brake means are operatively associated with a top member that has the scraper means secured thereto to produce relative rotation of the helical scraper re the stack of discs for scraping solid particles therefrom to deliver them to the upper end of the apparatus.
Inventors
- 👤 Wallace J. Schall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:12
CPC Classifications
B; B04; B04B; B04B3/00; B04B3/04; B04B1/00; B04B1/20; B04B2001/2058
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
279 words
A centrifugal scraper and separator apparatus for fluids having solid particles therein, comprising a container having an open upper end, means mounting said container on a vertical axis for rotation thereof and adapted for connection to a drive means, an inner container having an open upper end operatively positioned within said first container for rotation therewith, a stack of annular discs in said inner container, said discs being of uniform inner and outer diameters for a major portion of the height of the stack but being of progressively smaller inner diameters approaching the upper end of the stack to form a conically shaped inner surface, said discs as stacked having fluid flow passages therethrough from their inner to their outer diameters, a vertically positioned inlet tube extending from above said container down into said inner container for feed or a fluid mix thereto, a helical scraper means supported on said inner container positioned within said stack of discs and having a cylindrical lower section and a conically shaped upper portion for scraping engagement with the inner surfaces of said discs, the convolutions of said scraper means extending upwardly, a collector plate at the upper end of said stack of discs, which plate has a center opening therein, the upper end of said scraper means extending through said opening, means to remove solids deposited on said collector plate by said scraper means, a brake member engaging the upper end of said scraper means, means to remove fluids flowing through said stack of discs, and brake means for said brake member to engage the same to slow rotation of such member and said scraper means relative to said stack of discs.
Claim 2
Dependent Claim
279 words
A centrifugal scraper and separator apparatus for fluids having solid particles therein, comprising a container having an open upper end, means mounting said container on a vertical axis for rotation thereof and adapted for connection to a drive means, an inner container having an open upper end operatively positioned within said first container for rotation therewith, a stack of annular discs in said inner container, said discs being of uniform inner and outer diameters for a major portion of the height of the stack but being of progressively smaller inner diameters approaching the upper end of the stack to form a conically shaped inner surface, said discs as stacked having fluid flow passages therethrough from their inner to their outer diameters, a vertically positioned inlet tube extending from above said container down into said inner container for feed or a fluid mix thereto, a helical scraper means supported on said inner container positioned within said stack of discs and having a cylindrical lower section and a conically shaped upper portion for scraping engagement with the inner surfaces of said discs, the convolutions of said scraper means extending upwardly, a collector plate at the upper end of said stack of discs, which plate has a center opening therein, the upper end of said scraper means extending through said opening, means to remove solids deposited on said collector plate by said scraper means, a brake member engaging the upper end of said scraper means, means to remove fluids flowing through said stack of discs, and brake means for said brake member to engage the same to slow rotation of such member and said scraper means relative to said stack of discs.
Claim 3
Dependent Claim
20 words
Apparatus as in claim 1 wherein said discs each have generally radially extending slots in at least one face thereof.
Claim 4
Dependent Claim
24 words
Apparatus as in claim 1 where said stack of discs are positioned by vertically extending ribs on the inner surface of said inner container.
Claim 5
Dependent Claim
30 words
Apparatus as in claim 1 where said scraper means is resilient in an axial direction and has its periphery in loose scraping engagement with the bores of said annular discs.
Claim 6
Dependent Claim
56 words
Apparatus as in claim 1 where said solid particles collect on the inner peripheries of said discs of said stack of discs and said scraper means moves such particles upwardly of said discs, the outer periphery of said scraper means and the inner periphery of the discs of said stack of discs being of complementary shapes.
Claim 7
Dependent Claim
219 words
A centrifugal scraper and separator apparatus for fluids having solid particles therein, comprising a container having an open upper end, driver means mounting said container on a vertical axis for rotation thereof, a stack of annular discs in said container, said discs being of uniform inner and outer diameters for a major portion of the height of the stack but being of progressively smaller inner diameters approaching the upper end of the stack to form a conically shaped inner surface, said discs outer peripheries being spaced from said container, clearance for flow of fluids being provided between the discs of said stack of discs, a vertically positioned inlet tube extending from above said container down into said container, a helical scraper means positioned within said stack of discs and having a cylindrical lower section and a conically shaped upper portion for scraping engagement with the inner surfaces of said discs, the convolutions of said scraper means extending upwardly, a centrally open collector means at the upper end of the said stack of discs, the upper end of said scraper means extending through said collector means, suction means to remove fluids flowing through said stack of discs, and brake means for said scraper means to operatively engage the same to slow rotation thereof in relation to said stack of dics.
Claim 8
Dependent Claim
219 words
A centrifugal scraper and separator apparatus for fluids having solid particles therein, comprising a container having an open upper end, driver means mounting said container on a vertical axis for rotation thereof, a stack of annular discs in said container, said discs being of uniform inner and outer diameters for a major portion of the height of the stack but being of progressively smaller inner diameters approaching the upper end of the stack to form a conically shaped inner surface, said discs outer peripheries being spaced from said container, clearance for flow of fluids being provided between the discs of said stack of discs, a vertically positioned inlet tube extending from above said container down into said container, a helical scraper means positioned within said stack of discs and having a cylindrical lower section and a conically shaped upper portion for scraping engagement with the inner surfaces of said discs, the convolutions of said scraper means extending upwardly, a centrally open collector means at the upper end of the said stack of discs, the upper end of said scraper means extending through said collector means, suction means to remove fluids flowing through said stack of discs, and brake means for said scraper means to operatively engage the same to slow rotation thereof in relation to said stack of dics.
Claim 9
Dependent Claim
30 words
Apparatus as in claim 6 where said inlet tube extends to a point adjacent the bottom of said container, and said suction means is adjacent the top of said container.
Claim 10
Dependent Claim
81 words
Apparatus as in claim 6 where said solid particles collect on the inner peripheries of said discs of said stack of discs and said scraper means moves such particles upwardly of said discs, the outer periphery of said scraper means and the inner periphery of the discs of said stack of discs being of complementary shape but having slight clearance therebetween, fluids flowing through between said discs in said stack of discs next having a vertical flow path within said container.
Claim 11
Dependent Claim
29 words
Apparatus as in claim 6 where said discs each have generally radially extending recesses in a face thereof, the recesses extending from the inner to the outer diameter thereof.
Claim 12
Dependent Claim
20 words
Apparatus as in claim 6 where said scraper means has a lower end that is slidably supported by said container.
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) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |