Concrete blocks having through holes for water drainage

Details Concrete blocks having through holes for water drainage Concrete blocks having through holes for water drainage

1993-12-06

1995-03-28

Friedman, Carl D.

Static structures (e.g., buildings)

Opaque stonelike module

With traversing passage

52607, 52232, 5274519, 405 19, E04C 204

Patent

active

054005612

ABSTRACT:
In the case of concrete blocks having narrow through holes for water drainage (perforated blocks), in particular paving stones of various formats and sizes that can be laid on surfaces exposed to the rain, such as streets, paths, squares, parking areas and rings around planted trees, and can be filled by means of jointing means or by means of sand at the lateral ends, the problem exists that the holes become plugged upon jointing or sanding-in. In order to prevent this, the holes are closed at their top end until the jointing or sanding-in operation is complete. This is advantageously accomplished by means of a filling agent that can be floated away or dissolves by means of the addition of water.

REFERENCES:
patent: 2706109 (1955-04-01), dman
patent: 3099063 (1963-07-01), Santhany
patent: 3923410 (1975-12-01), Jordan et al.

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