E - Fixed Constructions – 02 – D
Patent
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02
D
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E02D 3/10 (2006.01) E02D 29/12 (2006.01) E02D 31/14 (2006.01)
Patent
CA 1208447
12 ABSTRACT A drain pipe intended for use when laying surface- water drains, manholes and like structures, particularly in frost susceptible ground. The drain pipe has a length such as to enable the pipe to connect a drain cover with a drain bottom part or a tubular raising member which is connected directly to the drain-bottom part or is connected to the drain-bottom part via one or more addi- tional raising members. The outer form of the drain pipe is slightly conical over at least a part of the length of the pipe, the pipe being arranged to be mounted so that its widest end faces downwards and can be inserted into a socket or collar of the aforementioned drain- bottom part or of a raising member. The invention also relates to a method of laying a drain while using such a drain pipe, and to a drain laid in accordance with the method.
439174
Arntyr Oscar S.
Engstrom Thord I.
Arntyr Oscar S.
Engstrom Thord I.
Kirby Eades Gale Baker
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