Abstract: This invention is an improvement of the vertical shaft rotary lawn mower so that it can, besides cut grass, also vacuum and sweep lawns, driveways, and other hard-surfaced areas and to shred leaves and other shreddable materials. The improvement includes a rotatable sweeper brush in its own housing, a shredder with a number of uniformly twisted angularly radiating blades, and an inverted truncated conically shaped blower. Both shredder and blower are attached respectively near the top extremity and to the lower extremity of a rotatable spindle. In the sweeping and/or vacuuming operation, the sweeper brush, the spindle, the blower, and the mower blade revolve and leaves and other debris are sucked up into the brush housing by the rotating brush and by the rushing air, torn into small pieces by the revolving shredder, and the debris thrown upwardly sideward by the blower into the upper corner above the baffles, whirled, and thrown upward into the discharge chute and into the grass bag.

Abstract: The present invention relates to a shock absorber pump/compressor which comprises attachments to the car's chassis and to the wheel axle housing; a rack gear that is set into a reciprocating motion as the car runs on the uneven surface of the road; a pinion gear that is rotated back and forth by the rack gear; a crank that is attached fixedly to the shaft of the pinion gear and which sets a double piston to move in a reciprocating manner. A diaphragm is attached to each piston head and the periphery of each diaphragm is clamped tightly between the cylinder and a cylinder head. The interior of each cylinder head and a diaphragm form a contractive and expansive space which draws in fluid from an outside source as the space expands and forces the fluid out as the space contracts. At the same time as fluid is drawn into one contractive/expansive space, fluid is forced out of the other space at the other end of the double piston.