EP0567692A1
Expired / Lapsed
EP
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Method for making a sealing and elements used to this end
Assignee: Pharo Ltd
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Filing: 1992-07-07
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Granted: —
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Expires: 2012-07-07
Abstract
Abstract Method for making a sealing, in particular from a material on the basis of clay, characterized in that said material (2) is provided with a temporarily liquid-resistant coating (3).
Inventors
- 👤 Loic John Willis
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 00:29
CPC Classifications
E; E02; E02D; E02D31/00; E02D31/002; E02D31/004
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
29 words
Method for making a sealing, in particular from a material on the basis of clay, characterized in that said material (2) is provided with a temporarily liquid-resistant coating (3).
Claim 2
Dependent Claim
25 words
Method according to claim 1, characterized in that for the coating (3) use is made of a material which breaks down or dissolves in water.
Claim 3
Dependent Claim
30 words
Method according to claim 1 or 2, characterized in that for the material (2) use is made of grains (4) which are individually coated by means of a film (5).
Claim 4
Dependent Claim
30 words
Method according to claim 1 or 2, characterized in that for the material (2) use is made of an amount of grains (4) which is encapsulated in coating material (7).
Claim 5
Dependent Claim
35 words
Method according to claim 1 or 2, characterized in that for the material (2) use is made of an amount of grains (4) which is enveloped by a coating (3) consisting of a membrane (8).
Claim 6
Dependent Claim
27 words
Method according to any of the above claims, characterized in that use is made of material (2) which has been gathered in the shape of a mat.
Claim 7
Dependent Claim
31 words
Method according to any of the above claims, characterized in that as the sealing is made, the material (2) is spread out and compressed before the hydration of the clay starts.
Claim 8
Dependent Claim
20 words
Method according to any of the above claims, characterized in that for the clay use is made of sodium bentonite.
Claim 9
Dependent Claim
21 words
Method according to any of claims 1 to 7, characterized in that for the clay use is made of calcium bentonite.
Claim 10
Dependent Claim
36 words
Element for realizing the method according to claim 1, characterized in that it mainly consists of an amount of material (2) on the basis of clay which has been provided with a temporarily liquid-resistant coating (3).
Claim 11
Dependent Claim
22 words
Element according to claim 10, characterized in that the coating (3) consists of a material which breaks down or dissolves in water.
Claim 12
Dependent Claim
27 words
Element according to claim 10 or 11, characterized in that the material (2) consists of grains (4) which are individually coated by means of a film (5).
Claim 13
Dependent Claim
27 words
Element according to claim 10 or 11, characterized in that the material (2) consists of an amount of grains (4) which is encapsulated in coating material (7).
Claim 14
Dependent Claim
32 words
Element according to claim 10 or 11, characterized in that the material (2) consists of an amount of grains (4) which is enveloped by a coating (3) consisting of a membrane (8).
Claim 15
Dependent Claim
24 words
Element according to any of claims 10 to 14, characterized in that the material (2) has been gathered in the shape of a mat.
Claim 16
Dependent Claim
25 words
Element according to claim 15, characterized in that this element (1) has at least one support (6) to which the material (2) has been applied.
Claim 17
Dependent Claim
18 words
Element according to any of claims 10 to 16, characterized in that the clay consists of sodium bentonite.
Claim 18
Dependent Claim
18 words
Element according to any of claims 10 to 16, characterized in that the clay consists of calcium bentonite.
Claim 19
Dependent Claim
18 words
Element according to any of claims 10 to 18, characterized in that the coating (3) consists of cellulose.
References Cited (Backward Citations)
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