Abstract: The present invention introduces operational modes for a spraying device (501, 502), and a method for controlling the operational modes. Different operational modes comprise a wall (305) operational mode, a ceiling (306) operational mode and a holding mode for the spraying device (501, 502) with two variable options. The spraying device can be a painting device, washing device, or other treatment device capable to spray liquid material, such as paint. Other possible aspects of the present invention comprise a working tool, which can also be implemented to apply the above three different operational modes, or part of them.

Abstract: The present invention introduces a painting head (403) for a spraying device, and a working tool module for a working tool. The device comprises two sensors, a gyroscope (301a) and an accelerometer (301b), for sensing positional and angular data of the painting head (403) or the working tool module. The controller (103, 305) calculates the desired relative angle of the painting head (403) in view of the longitudinal axis of the device so that when the user manually moves the device, the controller (103, 305) and the motors (104) automatically align the painting head (403) or the working tool module with a rotating movement in a substantially orthogonal direction towards the desired or treated surface (405) or towards the counter part element.

Abstract: A method of treating wood with an organic phosphonate salt in a liquid phase to chemically modify its surface and thus provide protection from microorganisms. The organic phosphonate salts are of Formula III wherein R1 is a hydrogen radical or an alkyl or aryl radical having 1 to 20 carbon atoms and R2 is a cation selected from the group of NH4+, H+, Li+, Na+, K+, Rb+, Cs+, Fr+, Cu+, Ag+, substituted or unsubstituted ammonium, phosphonium, and sulfonium, methylpyrrolidinium, isothiazolium, isoxazolium, oxazolium, pyrrolium, thiophenium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium, 1-ethyl-3-methylimidazolium , and triazolium, or a mixture thereof, said method preferably comprising using one or more salt compounds having formula III. Products comprising a raw material having been treated according to the method with one or more organic salts of formula III are also disclosed.