Abstract: Portable relaxation pod. The portable relaxation pod includes a foldable exterior housing with walls, front flaps configured to close at least partially and an interior ceiling. Interior panels have acoustic foam and corrugated plastic layers. The interior panels abut the ceiling and walls. The portable seating system of a foldable chair equipped with a massage cushion is placed inside the exterior housing. A relaxation system includes an eye mask, headphones connected to an audio player and a portable foot massager, which is placed outside of the exterior housing in front of the seating system.

Abstract: A foot swing is disclosed. The foot swing including a first support having a first leg pivotally connected to a second leg; a second support spaced from the first support, the second support having a first leg pivotally connected to a second leg; and a foot support extending between the first and second supports, the foot support including a first distal end pivotally connected to the first support and a second distal end pivotally connected to the second support to permit the foot support to move relative to the first and second supports.

Abstract: In various embodiments, a wake diversion system operates to manipulate the characteristics of the stern waves produced by a watercraft as it passes through water. In one embodiment, the wake diversion system includes a wake diverter that is comprised of a body, a panel, and a plurality of boat attachment mechanisms. The wake diverter is removably attachable to the side of the hull of a watercraft such that it obstructs the natural flow of water around the hull of the watercraft on side of the watercraft to which it is attached.

Abstract: A screw compressor is connected to a motor to be driven by the motor even during periods of low compressed air consumption. During such periods, the screw compressor is at least partially unloaded to make it easier and less costly to drive the compressor. The unloading is performed by removing air from the compressor. Preferably, that is done by communicating the air inlet of a small capacity vacuum device with the air outlet of the screw compressor. Suction from the vacuum device is transmitted to the air outlet of the screw compressor to suck air out of the screw compressor to reduce the engine horsepower needed to rotate the screw compressor. The vacuum device can also be used to boost the air volume and/or the air pressure. The system can be used in a drilling rig which drills holes in the ground. The screw compressor can be unloaded during start up of the motor by briefly driving the vacuum device by pressurized liquid from a pre-pressurized hydraulic accumulator.

Abstract: A percussive rock drill bit includes a steel bit body and carbide button inserts mounted in a front cutting face thereof. The bit body includes a passage intersecting the front cutting face for conducting a flushing/cooling medium to the front cutting face. The flushing/cooling medium travels to an outer periphery of the bit body and travels upwardly within flushing grooves formed in the outer periphery of the bit body. Portions of the bit body situated between successive ones of the flushing grooves constitute wings of the bit body. Some of the button inserts constitute gauge inserts. Only a gauge insert is mounted in each wing. At least some, possibly all, of the gauge inserts are offset circumferentially from a center of the respective wing toward a trailing end of the wing.