Patent EP0134296A1 successfully refreshed from Google Patents.
EP0134296A1
Expired / Lapsed
EP
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Engaging block for revetment
Assignee: Individual
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Filing: 1983-09-10
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Granted: —
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Expires: 2003-09-10
Abstract
Abstract An engaging block for revetment wherein narrow abutting surfaces are frontwardly formed in four sides of a side portion, projected portions (2) are formed in a set of adjacent two sides, and recessed portion(3) are formed in a set of other adjacent two sides. When blocks are brought into engagement with each other, a clearance (4) formed as a result of fitting between the projected portion(2) and the recessed portion(3) is enlarged towards the rearward. Whereby a bending property is imparted to mutual blocks and seeping water in a levee body is scattered and drained from four sides of the blocks.
Inventors
- 👤 Akira Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 07:30
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
An engaging block for revetment comprising a block body(l) in the form of a rectangular parallelepiped composed of a front portion(ll), a back portion(12) and side portions(13), characterized in that said side portion(13) is formed with a narrow abutting surface(13A) leading to and along four sides of said front portion(11), a set of adjacent two sides being continuously formed with projected portions(2), a set of other adjacent two sides being continuously formed with recessed portions(3) loosely fitted into said projected portions(2), and a clearance(4) formed as a result of fitting between said projected portion(2) and said recessed portion(3) is substantially gradually enlarged from the front portion(11) towards the back portion(12).
Claim 2
Dependent Claim
110 words
An engaging block for revetment comprising a block body(l) in the form of a rectangular parallelepiped composed of a front portion(ll), a back portion(12) and side portions(13), characterized in that said side portion(13) is formed with a narrow abutting surface(13A) leading to and along four sides of said front portion(11), a set of adjacent two sides being continuously formed with projected portions(2), a set of other adjacent two sides being continuously formed with recessed portions(3) loosely fitted into said projected portions(2), and a clearance(4) formed as a result of fitting between said projected portion(2) and said recessed portion(3) is substantially gradually enlarged from the front portion(11) towards the back portion(12).
Claim 3
Dependent Claim
23 words
An engaging block for revetment according to Claim 1, wherein the projected portion(2) and recessed portion(3) are in the form of a trapezoid.
Claim 4
Dependent Claim
24 words
An engaging block for revetment according to Claim l, wherein the projected portion(2) and recessed portion(3) are in the form of a circular arc.
Claim 5
Dependent Claim
23 words
An engaging block for revetment according to Claim 1, wherein the projected portion(2) and recessed portion(3) are in the form of an L-shape.
Claim 6
Dependent Claim
19 words
An engaging block for revetment according to Claim 1, wherein the front portion(ll) is provided with stilling portion (11A).
References Cited (Backward Citations)
FR375882A
Cited
FR1059117A
Cited
GB763795A
Cited
GB1131140A
Cited
DE1634176A1
Cited
DE2716660A1
Cited
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