Abstract: A tire inflation system is provided comprised of a wheeled body that is comprised of a means to inflate and deflate tires using at least one inflator. The system is also comprised of a plurality of safety measures such as at least one pressure switch, and at least one emergency deflate button. The system is also comprised of at least one muffler to reduce the noise of the system during use. The system may also have at least one hose that can attach to a tire and to an air inlet/outlet of the system to facilitate inflation of the tire.

Abstract: A self-cleaning mixer includes a cylindrical housing and a feedscrew extending longitudinally through the housing for mixing water and cement and conveying the slurry through the housing. A chute at the infeed end of the housing receives a batch of material and directs the material into the housing. The feedscrew turns on a hollow shaft including a plurality of outwardly directed nozzles along a portion of the length of the shaft. The housing includes a plurality of inwardly directed nozzles fed from a pair of manifolds. During a cleaning cycle, one of the manifolds is shut off, thereby increasing the water pressure in the other manifold and increasing the force of the spray to enhance cleaning. The housing is slightly inclined to provide gravity feed of slurry in addition to the feedscrew.