Abstract: A door assembly comprising a hinge post and a hinge stile, the hinge post and hinge stile configured for a first mating configuration and a second mating configuration. The first and second mating configurations enable adjustable placement of a shower door with the hinge post forming an extension below the bottom of the hinge stile in both configurations.

Abstract: Methods and apparatus for multilevel shower bases are defined. The multilevel shower base structure may comprise an impregnable base layer with interface to drain and a super-layer structure base that may drain water through its body to the underlying base layer. Various design and function aspects may be enabled by the structure of the multilevel shower base. In some embodiments, one or more sensors, including temperature sensors, occupancy sensors, and/or light sensors may be incorporated.

Abstract: A customizable closure system comprising panels of a pre-selected size and one or more conversion kits for mounting the panels. A room divider conversion kit comprises a hinge for converting the panels into room dividers, and a bypass conversion kit comprises a header for converting the panels into slidable panel doors, such as a closure for a shower area. Other conversion kits include a swing conversion kit and a hanger conversion kit. One embodiment of the panels further comprises a reinforcing system for securely retaining the panes with the panel.

Abstract: A customizable closure system comprising panels of a pre-selected size and one or more conversion kits for mounting the panels. A room divider conversion kit comprises a hinge for converting the panels into room dividers, and a bypass conversion kit comprises a header for converting the panels into slidable panel doors, such as a closure for a shower area. Other conversion kits include a swing conversion kit and a hanger conversion kit. One embodiment of the panels further comprises a reinforcing system for securely retaining the panes with the panel.

Abstract: A door assembly comprising a hinge post and a hinge stile, the hinge post and hinge stile configured for a first mating configuration and a second mating configuration. The first and second mating configurations enable adjustable placement of a shower door with the hinge post forming an extension below the bottom of the hinge stile in both configurations.

Abstract: A first extruded molding and a second extruded molding combined to form an extruded molding set, the moldings joined in a mechanical interlocking manner, the first extruding molding having a release flange and the second extruded molding having a recessed portion that together define a release channel, whereby the first and second molding may be disconnected by inserting a pry tool into the release channel to release the mechanical interlock.

Abstract: A formulation for colorimetric determination of the concentration of cyanuric acid compounds, particularly in swimming pool water, comprises an aqueous solution of a stabilizer, monoethanolamine and a thymolsulfonphthalein compound which, in aqueous solution with monoethanolamine, will exhibit different characteristic color shades dependent upon the concentration of cyanuric acid compounds. The stabilizer is a water-soluble, ultraviolet light absorbing material which is a condensation product of a disulfonic acid derivative with stilbene, stilbyle or their derivatives.A method of testing for cyanuric acid compound concentrations is to mix the formulation with a sample of swimming pool water and compare the resultant characteristic color shade with a standard color shade.