Pressure coating roller assembly
AssigneeIwata Air Compressor Mfg. Co., Ltd.
InventorKazuo Arai
Life of this patent
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Abstract
A pressure coating roller gun has a spray nozzle having a spray opening formed in front of the central jet orifice, the opening having a bevel impingement wall. By the use of this nozzle, a coating material is sprayed in the form of a divergent thin film over the coating roller surface. The coating roller preferably has a length corresponding to the width of the divergent thin film of coating material sprayed from the spray nozzle. A spherical coupling member is provided at the proximal end of the spray nozzle so as to allow free adjustment of the direction of spray.
Claims4
A pressure feed coating roller and spray gun assembly attachable to an external pressurized source of coating material, said assembly comprising:
- a coating roller;
- a spray nozzle mounted in predetermined spaced relationship to said coating roller;
- said spray nozzle including a jet orifice through which a jet of coating material passes and bevelled surface means facing said jet orifice and against which said jet of coating material impinges for diverting said jet toward the surface of said coating roller in the form of a thin, substantially flat spray which diverges laterally outwardly in a direction parallel to the longitudinal axis of said coating roller;
- and
- the length of said coating roller being equal to the laterally divergent width of said spray at the position of contact of said spray with said surface of said coating roller.
Dependencies are inferred from the claim text.