Apparatus for applying filter to a drainage tubing

Details Apparatus for applying filter to a drainage tubing Apparatus for applying filter to a drainage tubing

1976-09-15

1978-08-08

Moon, Charlie T.

Metal working

Means to assemble or disassemble

Tube and coextensive core

29235, 29450, 17 41, 17 49, 53409, 93 84TW, 206525, 206802, B23P 1904

Patent

active

041047745

ABSTRACT:
Apparatus and method for applying a filter sleeve to a continuous length of drainage tubing. The filter sleeve is gathered and packed endwise on a tubular mandrel. The mandrel is received within a dispensing canister mounted on trench-digging and drain-laying equipment between a supply of drainage tubing and a trench plow and laying boot assembly. The drainage tubing passes through the mandrel as it progresses from the supply to the laying boot which installs it in the trench, and one end of the filter sleeve is connected to the tubing whenever filter covering is desired. When so connected, the filter sleeve is continuously pulled by the tubing off the mandrel and about said tubing, through a feed controller in the form of an annular diaphragm at the exit end of the mandrel.

REFERENCES:
patent: 2863167 (1958-12-01), Nordin
patent: 2908123 (1959-10-01), Muller et al.
patent: 3454980 (1969-07-01), Washburn
patent: 3473190 (1969-10-01), Kielsmeier et al.
patent: 3731346 (1973-05-01), Kupcikevicius
patent: 4021885 (1977-05-01), Muller

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