Abstract: A readily accessible combination device is disclosed that can be used as both a shelving unit, such as a bookcase, and then quickly and easily be transformed into an egress unit with a set of emergency escape stairs. The combination device may be repositionable or securely and removably fastened to a structure, such as a wall in proximity to a window or other elevated opening. The device of the present invention is comprised of a plurality of shelves/steps that are repositionably attached to a plurality of supports by swivel mechanisms that permit the quickly and easy transformation of the device from shelving unit to egress unit, and vice versa.

Abstract: A landscaping device is disclosed that provides users with an easily assembled decorative lawn or landscaping barrier. The landscaping device comprises a plurality of elongated members secured together in various configurations. The elongated members comprise a center portion, a first end portion, and a second end portion, with each end portion extending from the center portion. Furthermore, the first end portion of one elongated member is attachable to the second end portion of a second elongated member and can be secured via a stake. Specifically, the first end portion comprises an overlapping segment, and the second end portion comprises an opposing overlapping segment which mates with the overlapping segment of the first end portion to secure the elongated members together. A stake is then driven into the end portions to secure the elongated members to the surface. Once secure, the elongated members are substantially flush with each other.

Abstract: Process for recycling a composition comprising pulverulent calcium fluoride in the form of micrometric particles comprising: (i) a stage of mixing, in the presence of water, the said composition with pulverulent calcium fluoride (also known as natural spar), the particle size of which is suitable for feeding an HF furnace, in a ratio r of less than 75% by weight, preferably of less than 30%, then (ii) a stage of drying the mixture resulting from (i) until a residual water content is obtained which is also suitable for feeding an HF furnace; the stage (ii) optionally being carried out simultaneously with the stage (i).