Abstract: A vacuum cleaner conversion arrangement is disclosed which, particularly, may be advantageously applied to a dirt cup cleaner. In this application, the conversion hose confluently communicates with the dirt cup when the cleaner is in converted condition so that suction air flows from the dirt cup to the motor-fan system of the vacuum cleaner in either of its floor or hose modes of operation. The conversion arrangement generally includes a conversion adapter having a closure means for sealing off its conversion hose and stanchions for conveniently mounting the ends of the same hose when it is not in use. The closure means may take the form of an outer door or an internal flapper valve plate.

Abstract: A filter shaking arrangement includes a resilient frame disposed around an expandable filter, both of which are expanded by a fan induced air flow. The resilient frame returns resiliently to its original form upon the cessation of this air flow. This contraction of the resilient frame tends to dislodge dirt adhering to the filter as it also is forced back to its original shape.

Abstract: A stick cleaner is provided with a dirt cup that can be inserted partially into the housing of the stick cleaner and swung to a fully mounted position by an automatic camming action. The dirt cup includes a latching mechanism which also cammingly engages a latch hook on the suction tube of the stick cleaner to maintain the dirt cup in an assembled position.

Abstract: A hand held cleaner is provided with a swiveling nozzle that moves from a position perpendicular to the cleaner body to a position of axial alignment with it. A series of stops are mounted on the swiveling nozzle and cleaner body to limit nozzle swing to these two positions. A reciprocable latch is mounted with the nozzle to engage, selectively, in one of a pair of latching apertures in the cleaner body to lockingly maintain the swiveling nozzle of its stopped positions. The agitator and agitator belt are offset from what would be considered their normal centered relationship to accommodate the swiveling action of the hand held cleaner nozzle.

Abstract: A vacuum cleaner includes an internal electrical supply cord and a control cable. These two elements are secured to a suction duct for mounting and guidance. The control cable also extends arcuately, smoothly around a lower motor-fan housing section to limit wear and kinking.

Abstract: The disclosure describes a vacuum cleaner having a dirt sensor circuit usable with an audio detector. The circuit provides amplification of the audio signal, a pulse stretcher, sensitivity selection of a non linear characteristic and visual signal means to indicate high or low levels of dirt concentration.

Abstract: A vacuum cleaner includes a pivoting rollered link which insures proper belt tensioning for the agitator belt of the cleaner. This link is abuttingly moved to disengaged non belt tensioning position by engagement of it by the cleaner handle as the handle is moved to upper, storage position.

Abstract: A bearing mounting arrangement is provided in which a dimension stabilizing ring is molded into a motor housing bearing cap to limit critical bearing mounting variations in the, as molded, plastic bearing cap. The dimension stabilizing ring has an inner castellated cylindrical surface forming axially parallel grooves. These grooves are filled with plastic during molding which include portions that intrude into the bearing mounting bore so that a bearing may be force fit in this bore, deforming these plastic portions. This fixes the outer race of the bearing and prevents rotation of it relative to the bearing cap of the motor housing.