Abstract: A roof mounting bracket is disclosed which creates a deformation in a roof panel seam using opposing set points. In a preferred embodiment, a generally U-shaped bracket includes two or more threaded fasteners in a first arm of the bracket and one or more opposing threaded fasteners in the second arm. Void in bracket is placed over the panel seam, with the first arm on a first side of the seam and the second arm on the opposite side of the seam. First screws inserted into the fasteners in first arm pass through the first arm and the first screw heads contact the first side of the seam, slightly engaging the seam and creating first deformations in the seam as the set screws are tightened. Second screws inserted into the fasteners in the second arm pass through the second arm and the second screw heads contact the second side of the seam in the spaces between the first deformations on the opposite side of the seam, engaging the seam and creating second deformations in the seam as the second screws are tightened.

Abstract: A clasp for releasably fastening two objects is disclosed. The clasp includes a male member and a female member. The female member includes a displaceable member that is movable between a first position and a second position. In the first position, the displaceable member precludes insertion of the male member into or removal of the male member from the female member. In the second position, the male member may be inserted into or removed from the female member. Alternatively, the clasp may include two objects that each contain both male and female parts.

Abstract: A clasp for releasably fastening two objects is disclosed. The clasp includes a male member and a female member. The female member includes a displaceable member that is movable between a first position and a second position. In the first position, the displaceable member precludes insertion of the male member into or removal of the male member from the female member. In the second position, the male member may be inserted into or removed from the female member. Alternatively, the clasp may include two objects that each contain both male and female parts. Interchangeable jewelry pieces comprising the clasp and a method for removably securing two jewelry pieces are also disclosed.

Abstract: A clasp for releasably fastening two objects is disclosed. The clasp includes a male member and a female member. The female member includes a displaceable member that is movable between a first position and a second position. In the first position, the displaceable member precludes insertion of the male member into or removal of the male member from the female member. In the second position, the male member may be inserted into or removed from the female member. Alternatively, the clasp may include two objects that each contain both male and female parts.

Abstract: A method of making a metal snow guard is disclosed. The snow guard has a solid layer of soldering material on its base to be heated and melted with application of heat to the upper side of the snow guard to solder the base to an underlying metal roof. The soldering material may be applied as spaced spots or projections providing a rough surface on the underside of the snow guard. The amount of solder and/or flux in the solid layer is limited so that the solder and/or flux does not flow outwardly from the snow guard and run down the metal roof thereby damaging or marring the metal roof surface. The snow guards may be formed of a few pieces of sheet metal. The projections of soldering material may be formed by forcing a paste of solder and flux through spaced holes in a plate or screen onto the base.

Abstract: A metal snow guard is provided with a solid layer of soldering material on its base to be heated and melted with application of heat to the upper side of the snow guard to solder the base to an underlying metal roof. The preferred soldering material comprises an interior layer of solder and an outer layer of flux. In one form, the soldering material is in the form of spaced spots or projections providing a rough surface on the underside of the snow guard with the projections melting and spreading laterally into uneven surfaces where the roof or the base of the snow guard is not flat. The amount of solder and/or flux in the solid layer is limited so that the solder and/or flux does not flow outwardly from the snow guard and run down the metal roof thereby damaging or marring the metal roof surface. The preferred snow guards are formed of sheet metal of relatively few pieces and which are folded and joined together in an inexpensive manner.

Abstract: A chemical process for treating pit waste contaminated with chromated copper arsenate (i.e. CCA). CCA is recovered for recycling, and remaining solids are decontaminated for safe disposal. Pit wastes are pulverized and reacted with concentrate sulfuric or phosphoric acid. Wood particles are partially decomposed and approximately 60% to 70% of the CCA is leached out. The acid-treated mixture is centrifuged or filtered to separate liquids from solids. Liquids are recycled for reuse in the CCA process. CCA-bearing solids enter a heated digester equipped with an air or water cooled condenser. Concentrated nitric and sulfuric acids are inputted into the digester and the ratio of nitric acid to sulfuric acid to solids is approximately six to two to one by volume. Nitric acid completely oxidizes all organic matter in the solids. Sulfuric acid serves as a dehydrating agent and liquid media for CCA. The initial oxidation is carried out at a temperature greater than 70.degree. C. and less than 100.degree. C.

Abstract: A method and apparatus for the removal and safe disposal of trace quantities of toxic or carcinogenic hydrocarbon compounds from waste water. As a result of this process, such hydrocarbon compounds are converted to less noxious, readily disposable compounds. The waste water is first admixed with rehydratable alumina to equilibrium, whereby hydrocarbon pollutant compounds are absorbed onto the surface of the rehydratable alumina. The compounds are then removed from the waste water by filtration, and the remaining water is safely drained off. The remaining rehydratable alumina containing the toxic compounds is then reactivated by heating for reuse in subsequent processing. Non-reusable alumina is digested in sulfuric acid to decompose any remaining toxic hydrocarbon comppounds to less noxious compounds and to convert the alumina to water-soluble and conveniently disposable aluminum sulfate.