Abstract: A vacuum cleaner includes a body that carries a suction generator. A final filter is carried on the body downstream from the suction generator. The final filter is oriented along a first plane. Opposed side discharge outlets are carried on the body and oriented along a second plane substantially perpendicular to the first plane. Air is exhausted from the vacuum cleaner through succeeding compartments of increasing volume and rerouted or turned through different planes along a tortuous air path in order to muffle noise produced by the operating vacuum cleaner.

Abstract: A bait activator for fishing lines having a DC motor, batteries and programmable controlling circuitry within a water tight house. The motor shaft is attached to the line leader causing it to rotate in both directions, alternatively. The housing may be allowed to float or it may be sunk, depending on the type of fishing the user is engaged in. The shaft of the motor is insulated from the line leader it is driving to prevent damage or electric leakage. The circuitry is programmed to cause a rotational movement on the bait that imitates that of life bait.

Abstract: Means for controlling the action of a blow molding machine of the type having a continuously extruding parison. The control means includes a photocell signal circuit responsive to extrusion of each parison at normal speed to initiate the decompression of a product at the blow molding station and opening and transfer of the mold halves back to the parison station. Should material in the extruder become depleted, the slower parison extrusion time will be detected and initiate signals for an alarm and deactivation of the blow molding machine. Means are also provided for disenabling this alarm and deactivation system if it is desired to "dry cycle" the machine for test purposes without running the extruder.