Pipe coating machine

Details Pipe coating machine Pipe coating machine

1974-02-04

1977-11-15

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

138144, 138175, 156162, 156187, 156188, 156431, B65H 8108, F16L 916

Patent

active

040584283

ABSTRACT:
Pipe coating apparatus which incorporates means for rotating and advancing a pipe along a specified path and an applicator means for placing cementicious materials thereon. The slurry is applied by a mechanism having a top opening which receives cement therein, the opening directing cement to a reinforcing ply which is applied to the pipe. The reinforcing material is delivered through the applicator mechanism. The cement falls on the reinforcing material which normally has a mesh construction. The pipe is advanced and rotated simultaneously. The helical movement of the pipe draws the reinforcing mesh into a gap at the lower side of the pipe above a free rotating parallel roller. A ply of weatherproofing material such as plastic film is placed on the pipe.

REFERENCES:
patent: 3617415 (1971-11-01), Hawerkamp
patent: 3706615 (1972-12-01), Nishiyama et al.
patent: 3706624 (1972-12-01), Rinker
patent: 3740291 (1973-06-01), Mallard
patent: 3817813 (1974-06-01), Keith et al.

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