Abstract: A floor cleaning system having a flat headed mop is provided. The system includes a bucket having a wringing assembly. A blade including a first angled portion is provided for that is adjacent a plurality of first openings for compressing the flat headed mop as it is inserted in the wringing assembly to remove dirt and debris accumulated during use. A second angled portion is provided for adjacent a plurality of second openings for compressing the flat headed mop as it is withdrawn from the wringing assembly.

Abstract: A device and system for purifying a fluid is provided. The system includes a tank having an interior space and a media container disposed within the interior space. A valve is provided that cooperates with an element within the interior, the valve being movable between an open and a closed position. The valve being biased to the open position when the element is not positioned within the interior space, wherein the interior space is fluidly coupled to the atmosphere in the open position. The valve further being configured to move to a closed position when the element is positioned within the interior space.

Abstract: A power tool is provided including a tool housing including a motor housing and a handle portion extending longitudinally from the motor housing; a battery receptacle disposed at an end of the handle portion opposite the motor housing, the battery receptacle being configured to receive a battery pack; and a brushless DC (BLDC) motor including an electronically-commutated stator assembly and a rotor assembly configured to rotate with respect to the stator assembly, the stator assembly comprising a stator lamination stack sized to be received within the motor housing having a circumference of approximately 140 to approximately 190 mm. The motor produces a maximum power output of at least 1600 watts for driving an output shaft at a maximum torque of at least 30 inch-pounds and a maximum speed of at least 8000 rotations-per-minute.

Abstract: A device and system for purifying a fluid is provided. The system includes a tank having an interior space and a media container disposed within the interior space. A valve is provided that cooperates with an element within the interior, the valve being movable between an open and a closed position. The valve being biased to the open position when the element is not positioned within the interior space, wherein the interior space is fluidly coupled to the atmosphere in the open position. The valve further being configured to move to a closed position when the element is positioned within the interior space.

Abstract: A shaft coupling having cooperatively spaced split collars mounted in juxtaposition and releasably locked to each other and to shaft ends for non-axial displacement of a shaft end.

Abstract: An apparatus and method for applying a false twist to a continuously traveling synthetic yarn by engaging the yarn along a directed path of travel with a uniroll member having a plurality of axially spaced yarn contacting surfaces bearingly supported for rotation about an axis, and yarn guide means for engaging and retaining the continuously traveling yarn along its predetermined path of contacting travel against the spaced yarn contacting members to impart a twist to the yarn in a substantially helical path from initial engagement to disengagement with the uniroll device to impart a false twist to the yarn.

Abstract: A shuttle assembly for use on a computer operated crane in an automated warehouse system. The crane has an elevatable platform and is movable along an aisle with horizontal storage racks on each side of the aisle. The racks include a plurality of vertical storage compartments. A shuttle assembly is mounted on the elevatable platform and comprises pins of two different heights carried on each of two adjacent counter rotating chains positioned on the bed of the elevated platform for pulling storage pans onto or pushing off the shuttle on computer command. Angle supports are included and are positioned one above each chain for supporting and guiding the pans while on the shuttle. An improved unitary material handling pallet or pan is provided for cooperation with the shuttle.