Hydraulic and earth engineering – Bank – shore – or bed protection – Wave or flow dissipation
Patent
1981-07-20
1983-11-08
Leppink, James A.
Hydraulic and earth engineering
Bank, shore, or bed protection
Wave or flow dissipation
405 33, 52505, 52561, E02B 306, E04B 102, E04C 108
Patent
active
044139241
ABSTRACT:
Blocks for constructing a breakwater substantially comprises a front wall, a rear wall disposed in parallel and spaced-apart relationship relative to the front wall, and at least one partition wall disposed perpendicular to the front and rear walls and integrally connecting the above two walls to form at least one vertical open-ended chamber between the front and rear walls, wherein the improvement is characterized in that at least one vertical open-ended hole is formed on each of the front and real walls of the block such that the vertical open-ended hole can be in alignment with corresponding vertical open-ended holes formed in the same manner on front and rear walls of the blocks in upper and lower rows when the blocks are arranged in rows and stacked vertically. Due to such construction, when the blocks are stacked up in rows to form a breakwater, the breakwater can have a water receiving chamber which effects the dissipation of wave forces and elongated vertical aligned holes in the front and rear portions thereof which effect the firm integration of blocks along with the packing of block uniting material therein.
REFERENCES:
patent: 482059 (1892-09-01), Kenway
patent: 2029586 (1936-02-01), Rendoff
patent: 2474786 (1949-06-01), Humphrey
patent: 3818656 (1974-06-01), Vigliotti
patent: 4175888 (1979-11-01), Ijima
Iida Kensetsu Co., Ltd.
Leppink James A.
Pistel Nancy J.
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