Patent ID: 9555430
Date: 2017-01-31
CPC Classifications: B05B

Claim:
1. A paint application system having a transportable paint roller, paint brush, paint pad, or a transportable paint spraying device or paint spray gun with a fan for dispensing paint via a spray head with a paint nozzle and a needle valve, and having a base station which is stationary during the work operation for paint application and has a connector to a paint supply, the base station having a paint pump for sucking in paint from the paint supply and delivering paint by means of pressure, and the base station being connected to the paint roller, paint brush, paint pad, or the paint spraying device via a paint hose and supplying the paint roller, paint brush, paint pad, or the paint spraying device with paint, wherein the paint roller, paint brush, paint pad, or the paint spraying device comprises a pressure reducing device/pressure regulator which is connected downstream of the paint hose and regulates the paint pressure in a paint dispensing line to a paint roller, paint brush, paint pad, or a paint spray head to a substantially constant paint pressure which is lower than a paint pressure in the paint hose, wherein the paint pump in the base station is assigned a pressure monitor for monitoring the required paint pressure at the paint pump-side end of the paint hose, wherein in a first regulating circuit, the pressure monitor comprises, as a measuring element, a hydraulic control line to a switch, in particular a membrane switch, wherein the hydraulic control line being connected to a pressure side of the paint pump via a coupling means, and wherein the switch having a prestressing means, in particular a spring stressing means, which has to be overcome in order to generate a switching signal and represents a setpoint value for the paint pressure, wherein a falling pressure at the pressure monitor below a lower limiting value leading, as a controlled variable, to relieving of the switch until the latter switches on the paint pump via an electrical contact, and wherein a rising pressure at the pressure monitor above an upper limiting value leading, as a controlled variable, to loading of the switch until the latter switches off the paint pump via an electrical contact.