Abstract: The present invention relates to a method for removing heavy metals from aqueous solutions by contacting heavy metal-contaminated water with a sorption media, or in particular with carbonate minerals. The present invention also relates to methods of using modified sorption media, such as aggregates of carbonate minerals and modified carbonate minerals, for the removal of heavy metals.

Abstract: A ridge vent adapted specifically for use with tile roofs having a nailer board installed at a ridge of a roof. The ridge vent includes a main body portion having a pair of eaves and a neck portion. The neck portion includes a plurality of projections on opposing inner walls thereof to maintain a minimum predetermined spacing between the inner walls and the nailer board, to thereby create airflow paths around opposing sides of the nailer board. A pair of weather blocking panels are secured to the nailer boards to help block rain, snow, etc. from entering though openings in the eaves. Each weather blocking panel includes a laterally extending portion with a plurality of slots and an upwardly extending edge portion. The upwardly extending edge portion creates a venturi effect over the slots to help draw air out therethrough when wind is blowing over the upwardly extending edge portions.

Abstract: A ridge vent adapted specifically for use with tile roofs having a nailer board installed at a ridge of a roof. The ridge vent includes a main body portion having a pair of eaves and a neck portion. The neck portion includes a plurality of projections on opposing inner walls thereof to maintain a minimum predetermined spacing between the inner walls and the nailer board, to thereby create airflow paths around opposing sides of the nailer board. A pair of weather blocking panels are secured to the nailer boards to help block rain, snow, etc. from entering though openings in the eaves. Each weather blocking panel includes a laterally extending portion with a plurality of slots and an upwardly extending edge portion. The upwardly extending edge portion creates a venturi effect over the slots to help draw air out therethrough when wind is blowing over the upwardly extending edge portions.

Abstract: A ridge vent adapted specifically for use with tile roofs, and which does not require a nailer board to be installed on a roof prior to installing the ridge vent. The ridge vent includes a main body portion, a neck portion extending from the main body portion and a pair of flanges depending from the neck portion and extending away from one another. The flanges are adapted to be secured directly to a roof after the ridge vent is placed over an opening at the ridge of the roof. The neck portion includes a pair of accordion-like panels which permit the length of the neck portion to be increased or shortened to vary the spacing between the main body portion and the flanges. This enables the ridge vent to accommodate roof tiles having varying radaii of curvature. A plurality of living hinge portions permit the ridge vent to be unfolded into a relatively flat orientation to make same easier to package and ship.

Abstract: A ridge vent adapted specifically for use with tile roofs, and which does not require a nailer board to be installed on a roof prior to installing the ridge vent. The ridge vent includes a main body portion, a neck portion extending from the main body portion and a pair of flanges depending from the neck portion and extending away from one another. The flanges are adapted to be secured directly to a roof after the ridge vent is placed over an opening at the ridge of the roof. The neck portion includes a pair of accordion-like panels which permit the length of the neck portion to be increased or shortened to vary the spacing between the main body portion and the flanges. This enables the ridge vent to accommodate roof tiles having varying radaii of curvature. A plurality of living hinge portions permit the ridge vent to be unfolded into a relatively flat orientation to make same easier to package and ship.

Abstract: A tool member is arranged to provide a compressed air discharge into a fluid filled chamber to direct fluid from the chamber into one of a plurality of irrigation tools. The irrigation tools are arranged for frictional engagement within a socket of the tool member.