Abstract: The invention provides systems and methods for removing perchlorate from water. The systems comprise reactors comprising biomass for degrading perchlorate, and the operation of the systems can be controlled according to novel logic specifications. Also provided are filters and filtration systems for clearing water in advance of analysis of the concentration of contaminants within the water. The filters comprise a length of tubing configured to generate backpressure at the filter sufficient to facilitate the flow of a water sample through the filter without overpressurization.

Abstract: The invention provides systems and methods for removing perchlorate from water. The systems comprise reactors comprising biomass for degrading perchlorate, and the operation of the systems can be controlled according to novel logic specifications. Also provided are filters and filtration systems for clearing water in advance of analysis of the concentration of contaminants within the water. The filters comprise a length of tubing configured to generate backpressure at the filter sufficient to facilitate the flow of a water sample through the filter without overpressurization.

Abstract: A revolving gun safety cabinet for holding and securing a plurality of rifles, shotguns and pistols. The revolving gun safety cabinet is made up of a multisided cabinet shell, a multisided storage compartment base used to support the multisided cabinet shell and to store gun accessories and supplies, a vertical post set within the center of the multisided exterior cabinet shell and a relatively large lower horizontal disk adapted to receive the butts of the rifles and shotguns held vertically upright within the revolving gun safety cabinet. There is also a relatively small upper horizontal disk adapted to receive the barrels of rifles and shotguns held vertically upright within the revolving gun safety cabinet and a locking mechanism to secure the rifles and shotguns to the vertical post.

Abstract: A revolving gun safety cabinet for holding and securing a plurality of rifles, shotguns and pistols. The revolving gun safety cabinet is made up of a multisided cabinet shell, a multisided storage compartment base used to support the multisided cabinet shell and to store gun accessories and supplies, a vertical post set within the center of the multisided exterior cabinet shell and a relatively large lower horizontal disk adapted to receive the butts of the rifles and shotguns held vertically upright within the revolving gun safety cabinet. There is also a relatively small upper horizontal disk adapted to receive the barrels of rifles and shotguns held vertically upright within the revolving gun safety cabinet and a locking mechanism to secure the rifles and shotguns to the vertical post.

Abstract: A bi-planar switch device having a plurality of spaced switches carried by a base. A level indicating device carried by the base indicates the orientation of the base relative to horizontal. Each switch is carried by a seat carried by the base. Each seat may be angularly displaced relative to the base to set its corresponding switch at a preselected angle relative to the base, each switch may be shifted within its seat ride upon the seat shoulder to adjust its preselected angle. A circuit is connected to the switches to eliminate the effects of switch bounce.