Polyurethane resin coating device

Coating apparatus – Solid applicator contacting work – Movably mounted applicator

Reexamination Certificate

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Details

C118S263000, C118S304000, C425S382300, C156S578000

Reexamination Certificate

active

11033290

ABSTRACT:
A polyurethane resin coating device includes a material mixing unit for mixing materials to have them reacted to form polyurethane resin liquid mixture. Subsequently, the polyurethane resin liquid mixture flows downward to a pressuring and sending unit to be mixed and reacted again by the helical rods rotating in the pressuring and sending unit and then pressured and conveyed to a gear pump. Afterward, the polyurethane resin liquid mixture is controlled by the rotating speed of the gears in the gear pump and steadily conveyed onto a coating wheel. A gap adjustable in size is formed between the wheel surface of the coating wheel and the outlet of the gear pump, able to carry out coating steadily and evenly.

REFERENCES:
patent: 2557841 (1951-06-01), Preusser
patent: 3398014 (1968-08-01), Turner
patent: 4501498 (1985-02-01), McKelvey
patent: 4552778 (1985-11-01), Zimmer
patent: 4879967 (1989-11-01), Sengoku
patent: 5747107 (1998-05-01), Bayer et al.
patent: 5927200 (1999-07-01), Chou et al.
patent: 6402498 (2002-06-01), Dunn

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