Abstract: A dust collection system includes a dust shroud with an internal impeller and a restrictor plate which separates the impeller from a cutting attachment. The impeller and restrictor plate provide air flow from the cutting attachment, through the shroud, and out of an exhaust port such that the dust collection system may be used without a powered filter if desired. The dust shroud may include an attachment to an angle grinder with clamping arms pivotably attached to the top of the dust shroud body. The clamping arms move inwardly relative to the shroud body to accommodate different sizes of angle grinders.

Abstract: This invention relates to equipment and a method for providing superior power washing at relatively low pressures. The equipment uses a unique mixing chamber wherein a pressurized water stream is mixed with a pressurized additive stream. For example, the additive stream enters the mixing chamber at a pressure at least that of the carrier, or water, stream. There is no need to operate the carrier liquid stream at substantially higher pressures than the desired delivery pressure.

Abstract: This invention relates to equipment and a method for providing superior power washing at relatively low pressures. The equipment uses a unique mixing chamber wherein a pressurized water stream is mixed with a pressurized additive stream. For example, the additive stream enters the mixing chamber at a pressure at least that of the carrier, or water, stream. There is no need to operate the carrier liquid stream at substantially higher pressures than the desired delivery pressure.