Abstract: A water lance blower for cleaning heat installations is disclosed. A water lance linked with a water feed conduit system is swivel-mounted with its orifice disposed in a hatch. The water lance can blow a jet of water through the heating installation in operation and through which flames and/or flue gases are guided to wall areas that can be reached from the hatch. The water lance blower is provided with a drive system with at least two drive units that control the water lance, and with a holding device that fastens the water lance blower onto the heating installation. Further, parts of the water feed conduit system are integrated onto the holding device, thereby substantially limiting the size of the water lance blower to the swivel range of the water lance.

Abstract: A trailer guard is disclosed having a right brush assembly having a right brush support, a right mount, and a left brush assembly having a left brush support and a left mount wherein the right support and the left support are joined by a connector and the right mount and left mount are capable of fixedly and removably engaging the existing vehicle trailer hitch support. The right brush and left brush comprise a plurality of flexible plastic strands capable of deflecting stones and dirt.

Abstract: A water lance blower for cleaning heating installations, wherein a water lance (6) is movably (5) arranged with its mouth on or in a hatch (2) and can blow a water jet through the heating installation, which is in operation and is flowed through with flames and/or smoke, onto wall areas (A-E) which can be reached from the hatch (2), wherein the water lance (6) is movable by at least one movement element (8.1, 8.2, 8.3) which is stationarily fixed at one end outside a vertical plane through the point of movement (5) of the water lance (6) to the heating installation and by the other end (7.1, 7.2, 7.3) to the water lance (6), wherein path sensors are provided for precise determination of the position of the water lance (6). Preferably three movement elements (8.1, 8.2, 8.3) are provided, the fixing points (9.1, 9.2, 9.3) of which each form in particular an angle of approximately 80° to 140° to the point of movement (5) of the water lance (6).

Abstract: A water lance blower for cleaning heating installations, wherein a water lance (6) is movably (5) arranged with its mouth on or in a hatch (2) and can blow a water jet through the heating installation, which is in operation and is flowed through with flames and/or smoke, onto wall areas (A-E) which can be reached from the hatch (2), wherein the water lance (6) is configured in a shortened manner, in that the water supply (11, 10) is bent one or more times by in total more than 70.degree., preferably more than 90.degree. (20, 24; 39). In addition steadying of the flow profile is effected by an expanded calming volume (20) arranged in the end of the water lance (6) lying outside the heating installation, in particular an approximately spherical volume (20), so that the jet quality of the water lance is not impaired. The shortened water lance permits more simple drive mechanisms and adjustment to restricted spatial arrangements.

Abstract: A water lance blower for cleaning heating installations, wherein a water lance (6) is movably (5) arranged with its mouth on or in a hatch (2) and can blow a water jet through the heating installation, which is in operation and is flowed through with flames and/or smoke, onto wall areas (A-E) which can be reached from the hatch (2), wherein the water lance (6) is movable by at least one movement element (8.1, 8.2, 8.3) which is stationarily fixed at one end outside a vertical plane through the point of movement (5) of the water lance (6) to the heating installation and by the other end (7.1, 7.2, 7.3) to the water lance (6), wherein path sensors are provided for precise determination of the position of the water lance (6). Preferably three movement elements (8.1, 8.2, 8.3) are provided, the fixing points (9.1, 9.2, 9.3) of which each form in particular an angle of approximately 80.degree. to 140.degree. to the point of movement (5) of the water lance (6).

Abstract: A method for determining positioning of a controllable blower lance for cleaning a pre-determinable surface of a heatable internal chamber, preferably a combustion chamber, in which deposits form, wherein at least one site of impact of a cleaning medium of the blower lance on a surface to be cleaned of the internal chamber and at least one position of at least a part of the blower lance, by means of which the direction of flow of the cleaning medium out of the blower lance can be determined, are established and recorded and a correlation is established between at least the site of impact and the position, taking into account at least one parameter concerning the internal chamber, wherein by means of the correlation, the positioning of the blower lance can be determined for cleaning the pre-determinable surface.