BOLL & KIRCH FILTERBAU GMBH Patent applications |
Patent application number | Title | Published |
20130306546 | REVERSIBLE-FLOW FILTER WITH SCAVENGING DEVICE - A reversible-flow filter with a filter insert in a filter housing, the inner space of which being connected to a fluid inlet, an outlet and a backwash device being rotatable and having a backwash body with a washing gap, reaching near the surface of the filter wall, for cleaning off the filter wall in backwash operation. The backwash device is coupled at one axial end to a rotary drive and at its other end to a sludge discharge. The backwash body having a suckaway slot openable into the inner space, separate from the washing gap and having a larger opening cross-section than the washing gap, wherein the backwash device has a hollow shaft partially movable in relation to the backwash body and rotatable for connecting the washing gap or suckaway slot to the sludge discharge as a function of the relative position between the backwash body and the hollow shaft. | 11-21-2013 |
20110183830 | CENTRIFUGE AND CENTRIFUGE ROTOR FOR THE SAME - A centrifuge for separating solids from a liquid including a centrifuge rotor with a rotor shaft, partially formed as a hollow shaft, and a centrifuging drum, being rotatable with the rotor shaft, wherein the liquid to be separated can be supplied via the cavity of the hollow shaft. To ease emptying of the drum, the centrifuging drum includes a drum lower part and a drum upper part, which bears loosely against the drum lower part. The upper part is guided in an axially movable manner on the shaft and is movable by means of a disengagement mechanism parallel to the rotor axis into an open position in which, for self-emptying of the interior space, the drum parts are spaced apart from one another while they still rotate with the rotor shaft. | 07-28-2011 |