Abrasive or related blasting with particulate material, whereby a blast of any particles or pellets dispersed in air, gas, or liquid ( or an equivalent jet of particles or pellets projected or energised by other means ) is used for the treatment of surfaces or cutting of materials, the particles usually being of abrasive material.

Blasting with jets acting as abrasive jets, but not containing particulate material in the exceptional cases of deburring, removal of extended surface areas and jet milling of local recessions e.g. grooves.

Subclass B24B of grinding and polishing complements the abrasive blasting with particulate material, which is covered by B24C.Polishing or abrading surfaces by means of tumbling apparatuses or other apparatuses in which the work or the abrasive material is loose, are covered by main group B24B 31/00.Abrading internal surfaces, e.g. of a tube or a flow channel, by operations in which a plastically deformable grinding compound is used as a loose abrasive material under the influence of pressure, known in the art as abrasive flow machining, extrude honing or hydro-erosive machining, is covered by group B24B 31/116 when the dynamic viscosity of the carrier medium is higher than that of conventional fuels such as diesel. When the dynamic viscosity of the carrier is less than or equal to that of conventional fuel (e.g. when water is used as a carrier), the machining is considered as particulate blasting of an internal surface, which is covered by B24C 3/325 and its subgroups.

Spraying or atomising in general and nozzles in general are covered by subclass B05B.

Nozzles specially adapted for blasting surfaces with a jet of particulate material are covered by group B24C 5/04.

Abrasive particles, powders or compositions in general are covered by groups C09K 3/14 and C09G 1/00. Polishing compositions in general when they contain abrasives or grinding agents are covered by C09G 1/02. When used as materials for abrasive blasting, they are covered by B24C 11/00.

Abrasive blasting methods for producing particular effects and also devices configured to perform these methods.

Example(s): US20080076328, EP0015470, WO20060097133.

Example(s): US20100192655, US20060089090, DE1020040023246.

Example(s): WO9735686, EP1792691.

Example(s): US 20100269593, US20070259606.

Example(s): GB2400893, US20030065424.

Example(s): EP1803532, US7131303, JP20040230549, EP0811582.

Example(s): EP2132001.

Example(s): US20040168494, EP1839801, WO20080044613.

Example(s): US20080108281, US20030219621, US20030116649.

Example(s): FR2689431, EP0359277, US4258084, DE1020080011243.

Abrasive blasting machines and plants.

Also machines with intersecting and swinging or swivelling nozzles.

Example(s): US6604986 (intersecting nozzles), US20040162009, DE1020070006673 (swinging nozzles).

also devices with rotating nozzles.

Example(s): DE1020070033788 (robot), WO20100119201 (rotating nozzles), WO9114539, US20060049285 (rotating nozzles), US20060135041 (gantry type), DE1020080027217

Example(s): US5191740, US5216849, WO9505922 (road barrier), US20080287039, WO20060097133 (handheld), US5181349 (handheld), EP1207235 (road vehicle), WO0048901, EP0795380 (corner), EP2038088 (portable), US5248436 (from helicopter or ship).

also blasting of surfaces that are not strictly vertical.

Example(s): FR2891175 (ship hull, airplane hull).

Blasting of surfaces that are not strictly vertical and containing devices with suction means are additionally classified in B24C 3/065.

Devices with suction means and horizontal working plane for treating floorings.

Example(s): FR2564769.

Example(s): US5512005, US5417608

Example(s): GB1149317.

Example(s): EP0227275, EP0100944, GB1080030.

Example(s): EP2178677, US20080258367, US20080209731.

Example(s): CH614656.

Example(s): DE4435333, DE1020080011663, US20030186626.

Example(s): US20050204528

Example(s): US20050255795, US4251956, US20030219621.

Example(s): US4566230

Example(s): US20080209731, DE4342593.

Example(s): EP1045743, EP0523462, EP0248096.

Example(s): US20060189265.

Example(s): EP0927773, WO9735686, US5272897.

Example(s): US6726548, DE4408643, DE4415094.

Example(s): JP60034270, EP1172177, WO20040048036.

Example(s): US6059640.

Example(s): CH665987, US4218854, US4003164.

Example(s): GB851361.

Example(s): GB592600.

Example(s): EP1754573, WO9505922, GB2249045, US20030070693 (method for cleaning and injection mould), US5512007 (flexible connection), DE4408645 (springs).

Contrary to the take-precedence-rules in the title of this subgroup, documents relating to the aspects of subgroup B24C 3/08 (abrasive blasting of traveling or moving workpieces) and documents relating to the aspects of subgroup B24C 3/18 (with means for moving workpieces into different working positions) are covered in this subgroup B24C 3/32 when additionally relating to the aspects of this subgroup B24C 3/32 (designed for abrasive blasting of particular work).

Example(s): WO9528256 (blasting of CRT), US5916738, US20100068976 (blasting of motor conductors).

Example(s): DE1020070006661, EP1898003 (blasting of tunnel walls), EP1901894, US20040162009 (internal blasting of motor block), DE10341029, US20020179119 (internal blasting of concrete mixer), US6402854, EP1423237, GB850045, DE4015412.

Blasting of internal surfaces with particulate matter and without passing a blast gun, impeller or the like along the internal surface.The flow is considered as blasting only when the dynamic viscosity of the carrier is less than or equal to that of conventional fuels like diesel, e.g. when water is used as a carrier.

Example(s): EP1312432, US5391256, DE4420579.

Example(s): US3704552, US3913273.

e.g. abrasive blasting with particles by jet flame processing.

Example(s): GB938025, US4616787, EP1539424 (jet flame abrasive blasting) EP1155781.

Example(s): EP1207013, FR2689431.

Example(s): US7341504, US20060276112, DE19804233, US5908349, US4932592, EP0083614.

Example(s): EP1574290, FR2866586, DE10243855, WO03103899, EP1178873, US20030045217, US6695686, US5704825, US5484325.

Example(s): WO20070072863, WO0239078, US6126516, US5779524, DE3505468.

Example(s): EP1352713, US5759091, EP0688633, GB985743, GB1101107, US4069025.

Example(s): EP1412133, US4244150.

Example(s): US6692340, WO0200393, US5076028.

Example(s): EP1360035, EP1354667, US5688162.

Example(s): US20040259473 (magnetically), US5211135 (detonation cord clusters for deslagging water boilers).

Equipment for feeding and controlling the characteristics of abrasive blasting material

Example(s): EP0322485, GB731117, EP1557223.

Example(s): DE19933339, US5283991.

Example(s): US20070207702, JP59001167.

Example(s): GB1424896.

Example(s): DE10260257, DE4335382.

Example(s): DE1020070039540.

Example(s): DE10235097, US20070287126, EP2001637.

Example(s): EP0992221, US5081799.

Example(s): EP1851003, WO20040101224, WO9635389, EP0652078, US4569161, US3858360.

Example(s): DE10348805, US4666083, US4218855.

E.g. blasting where the abrasive is first mixed with liquid and a gas and then the mixture is fed and propelled to the working surface, or where the abrasive is added to a premixed flow of liquid and gas, or where a shrouding water curtain or water jet is added to the mixture jet of gas and abrasive.

Example(s): US20110053464, US20110053464, US5283991, WO9408753, GB498478, DE1020040023246.

Example(s): DE10317663, DE3445643, GB2108399, JP58202777, WO20090096122.

Example(s): EP2335852, US20110053458, DE1020080011663, US20060260823, DE10216468, US5367841, US4882881, US4139970.

Example(s): DE19926084, DE4407956.

Example(s): EP1603709 GB2367777, US4275531, GB2337953.

Example(s): WO20110052287, WO20090110231, US20060111023, JP57194878, US5344472, EP0798081.

Example(s): GB2403726, EP1422026.