Surface coating device of core body

Details Surface coating device of core body Surface coating device of core body

1980-02-25

1981-08-04

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

118405, 264167, 264310, 425113, 425381, 425465, B29F 310

Patent

active

042819784

ABSTRACT:
A coating device for the coating of synthetic resin in a given thickness on the outer surface of a core body. An elongate body made of metallic tube or the like passes through an extrusion chamber and out of an opening in the chamber. A moveable die is held, rotatable freely, between said chamber and a fixed die provided in alignment with the opening of said chamber. The fixed and moveable dies are provided respectively with an optional number of grooves in the forward direction of the elongate body on their inner walls, with respective grooves being alignable with each other. By giving a fixed rotation to the moveable die, the supply and non-supply of synthetic resin to the grooves of the fixed die will repeat. Thus, the surface of the body is coated with synthetic resin and, at the same time, there are formed on the surface of the coated resin a plurality of projections in a discontinuous form.

REFERENCES:
patent: 3193604 (1965-07-01), Mercer
patent: 3249668 (1966-05-01), Scragg et al.
patent: 3422648 (1969-01-01), Lemelson
patent: 3496605 (1970-02-01), Onaka
patent: 3642396 (1972-02-01), Meneidis
patent: 3666389 (1972-05-01), Nelson
patent: 3928519 (1975-12-01), Kashiyama et al.
patent: 4053274 (1977-10-01), Lemelson

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