Patent ID: 6099186
Filing Date: 2000-08-08
Classification: B05C

Abstract:
A roller-type liquid applicator comprising:a transporting tube member having opposite ends provided with a receiving chamber extending along the direction of a longitudinal axis thereof, said receiving chamber provided at one end thereof with a liquid admitting hole in communication with said receiving chamber, and a liquid reverse flow hole in communication with said receiving chamber, said transporting tube member further provided with a plurality of through holes which are arranged along the longitudinal direction of said transporting tube member and are in communication with said receiving chamber;a roller comprising a fastening tube and a roller pad fastened with an outer surface of said fastening tube, said fastening tube being provided with an axial bore having two open ends and a bore diameter greater than an outer diameter of said transporting tube member whereby said fastening tube is further provided with a plurality of through holes which are arranged circumferentially;a supporting device enabling said fastening tube of said roller to be fitted over and rotatably connected to said opposite ends of said transporting tube member such that said fastening tube is kept apart from said transporting tube member by a distance, and that said fastening tube rotates relative to said transporting tube member;a sealing device for sealing off said two open ends of said axial bore of said fastening tube of said roller; anda gripping device connected with said transporting tube member for gripping by a hand;whereby a liquid can be applied on a workpiece being fed into said receiving chamber via said liquid admitting hole such that the liquid is absorbed by said roller pad via said through holes of said transporting tube member and said through holes of said fastening tube of said roller, and that an excess of the liquid can be drained via said liquid reverse flow hole of said transporting tube member.