Patent EP0188993A2 successfully refreshed from Google Patents.
EP0188993A2
Expired / Lapsed
EP
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Multiple-disc type filters
Assignee: Individual
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Filing: 1985-12-20
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Granted: —
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Expires: 2005-12-20
Abstract
Abstract 7 A filter including a housing (2) having an inlet (4) connectable to an upstream pipe, and an outlet (6) connectable to a downstream pipe; and a stack of discs (20) disposed within the housing (2) for separating solid particles from a fluid flowing between the discs (20) from the upstream side of said stack to the downstream side thereof. The filter discs (20) have a large surface area of their side faces formed with grooves and a spacer member (22) interposed between each pair of adjacent filter discs (20), the spacer members (20) having surfaces contacting only a portion of the grooved faces of the filter discs (20) on the upstream side of the stack not contacted by the spacer members (22) to thereby form compartments (24) on the upstream side of the stack for accumulation of solid particles which settle in the grooves, edge filtering passageways along the upstream edges of the spacer members (22) in contact with the grooved faces of the filter discs (20), which passageways define the size of particles separated by the filter and further filtering passageways of large surface area in the compartments (24), these latter passageways extending between the particles settling in the grooves in the compartments (24) and through the grooves to the downstream side of the stack.
Inventors
- 👤 Mordeki Drori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 03:20
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/44; B01D29/46
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
220 words
A filter including a housing having an inlet connectable to an upstream pipe, and an outlet connectable to a downstream pipe; and a stack of discs disposed within said housing for separating solid particles from a fluid flowing between said discs from the upstream side of said stack to the downstream side thereof; characterized in that said stack includes: a plurality of filter discs having a large surface area of their side faces formed with grooves; and a_spacer member interposed between each pair of adjacent filter discs; said spacer members having surfaces contacting only a portion of the grooved faces of the filter discs leaving a portion of the grooved faces of the filter discs on the upstream side of the stack not contacted by the spacer members, to thereby form; (a) compartments on the upstream side of the stack for accumulation of solid particles which settle in said grooves; (b) edge filtering passageways along the upstream edges of the spacer members in contact with the grooved faces of the filter discs, which passageways define the size of particles separated by the filter; and (c) further filtering passageways of large surface area in said compartments, said latter passageways extending between the particles settling in the grooves in said compartments and through the grooves to the downstream side of the stack.
Claim 2
Dependent Claim
220 words
A filter including a housing having an inlet connectable to an upstream pipe, and an outlet connectable to a downstream pipe; and a stack of discs disposed within said housing for separating solid particles from a fluid flowing between said discs from the upstream side of said stack to the downstream side thereof; characterized in that said stack includes: a plurality of filter discs having a large surface area of their side faces formed with grooves; and a_spacer member interposed between each pair of adjacent filter discs; said spacer members having surfaces contacting only a portion of the grooved faces of the filter discs leaving a portion of the grooved faces of the filter discs on the upstream side of the stack not contacted by the spacer members, to thereby form; (a) compartments on the upstream side of the stack for accumulation of solid particles which settle in said grooves; (b) edge filtering passageways along the upstream edges of the spacer members in contact with the grooved faces of the filter discs, which passageways define the size of particles separated by the filter; and (c) further filtering passageways of large surface area in said compartments, said latter passageways extending between the particles settling in the grooves in said compartments and through the grooves to the downstream side of the stack.
Claim 3
Dependent Claim
25 words
The filter according to claim 1, wherein said surfaces of the spacer members contacting portions of the grooved faces of the filter discs are flat.
Claim 4
Dependent Claim
45 words
The filter according to either of claims 1 or 2, wherein the area of said grooved portions of the filter discs contacted by said spacer members is less than the area of said grooved portions of the filter discs not contacted by said spacer members.
Claim 5
Dependent Claim
51 words
The filter according to any one of claims 1-3, wherein said spacer members are of annular configuration, and said filter discs include grooves extending generally in the radial direction such that the fluid flow through said edge-filtering and further filtering passageways is generally in the radial direction of said filter discs.
Claim 6
Dependent Claim
25 words
The filter according to claim 4, wherein said spacer members also include radially extending portions contacting portions of the grooved faces of the filter discs.
Claim 7
Dependent Claim
54 words
The filter according to any one of claims 1-3, wherein said grooves in the filter discs are of annular configuration, and said spacer members include portions extending generally in the radial direction such that the fluid flow through said edge-filtering and further filtering passageways is generally in the circumferential direction of the filter discs.
Claim 8
Dependent Claim
39 words
The filter according to claim 6, wherein said spacer members are of sinuous configuration and include interconnected loops in contact with the grooved faces of the filter discs and extending in the generally radial direction of the filter discs.
Claim 9
Dependent Claim
26 words
The filter according to claim 7, wherein said loops of the spacer members are interconnected by webs spaced from the grooved faces of the filter discs.
Claim 10
Dependent Claim
18 words
The filter according to any one of claims 1-8, wherein said spacer members are also of disc configuration.
Claim 11
Dependent Claim
52 words
The filter according to claim 9, wherein said spacer members are formed with grooves substantially wider than said grooves of the filter discs, said grooves of the filter discs being contacted by the crests of said wider grooves in the spacer members and being spaced from the valleys of said spacer members.
Claim 12
Dependent Claim
24 words
The filter according to claim 10, wherein said grooves in the spacer members are also substantially deeper than the grooves in said filter discs.
Claim 13
Dependent Claim
49 words
The filter according to either of claims 10 or 11, wherein said grooves in the spacer members extend generally in the radial direction, and said grooves in the filter discs also extend generally in the radial direction but at a different angle than said grooves in the spacer members.
Claim 14
Dependent Claim
35 words
The filter according to either of claims 10 or 11, wherein said grooves in the spacer members extend generally in the radial direction, and said grooves in the filter discs extend in the circumferential direction.
Claim 15
Dependent Claim
15 words
A multiple-disc-filter substantially as described with reference to and as illustrated in the accompanying drawings.
Claim 16
Dependent Claim
15 words
A multiple-disc-filter substantially as described with reference to and as illustrated in the accompanying drawings.
References Cited (Backward Citations)
No citation records indexed.
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