The invention relates to a novel industrial product which provides a novel system capable of performing a universal perforation for binding and spiral-binding machines, by means of oblong perforations that receive the rings, spirals or combs and folders with rings of multiple sizes, which is currently performed by machines that involve several steps. Oval perforation punches are installed.

The invention relates to a method for obtaining a magnesium-aluminium mixed oxide (MgOAl) from the reaction between particles of the magnesium-aluminium alloy (MgAl) and oxygen (O2), said method involving a reaction between a solid and a gas at a certain normal temperature and pressure. The magnesium-aluminium alloy (MgAl) has a composition of 10 wt % to 90 wt % of magnesium (Mg) and 10 wt % to 90 wt % of aluminium (Al), the oxygen (O2) is obtained from the argon (Ar), helium (He), nitrogen (N2), and hydrogen (H2) gases that contain same as an impurity with a concentration of 3 to 5 parts per million (ppm), also being obtained from the atmospheric air. The magnesium-aluminium mixed oxide (MgOAl) was initially obtained in a thermogravimetric system (TGA) and then in a tube furnace, but can also be obtained in any type of furnace or muffle; the temperature at which the mixed oxide is obtained ranges from ambient temperature to 700 °C during a time from 0.5 to 5 hours or until the reaction ends, said procedure producing a bulky, porous, low-density, dark grey compound that is similar to a calcined hydrotalcite (HT) compound, having physical and chemical properties that are different to those of a commercially available hydrotalcite (HT); the magnesium-aluminium mixed oxide (MgOAl) is obtained with 5 to 50 times the volume of the particles of the alloy (MgAl) with the aforementioned percentages. Hydrogen (H2), non-calcined hydrotalcite (HT) and aluminium hydroxide (Al(OH)3) are also obtained in a single step, by reacting the mixed magnesium-aluminium oxide (MgOAl) with water (H2O) and/or an aqueous solution of urea or any type of combination of solvents with water (H20) at low temperatures; said oxide also absorbs various types of gases, volatile compounds and moisture, both under normal pressure and temperature conditions and under certain pressure and temperature conditions in the event of absorbing hydrogen (H2) in a microreactor.

The invention relates to the production of a low-molecular-weight recombinant metalloproteinase, in which the gene that codes for said metalloproteinase is obtained from the cDNA of Trichomonas vaginalis grown in the presence of Zn+2 and the gene is amplified using specific primers by means of the PCR technique. Said recombinant protein can be used for the diagnosis of trichomoniasis in men, since it has an optimal expression in the presence of Zn2+.

The invention relates to polyclonal antibodies against the 50-kDa metalloproteinase of T. vaginalis and the 50 kDa recombinant protein, obtained from the immune response in laboratory animals generated by the recombinant metalloproteinase of Trichomonas vaginalis that has low molecular weight and is expressed in a Zn +2 medium. Said antibodies can be used in the diagnosis of trichomoniasis in men.

The present invention relates to a paintbrush made up of: a removable base 1, the body of the paintbrush 2, which in turn is made up of two parts that can be made of any material, a top part 3 and a bottom part 4; in which the bottom part 4 forms the handle and has an ergonomic shape 5, and has small rough projections 6 to prevent slipping during painting when the user is holding the bottom part 4; a kit made up of at least: a paintbrush with no bristles; a removable base with bristles; a removable base with a spatula; a set of different types of screwdriver tips, slotted, Phillips, etc.; a roll of adhesive tape and a pair of plastic covers.

A continuous method for applying coatings to a metal element, especially metal sheets in roll or leaf form, or in the form of metal components, which comprises cleaning and heating the metal sheet to a predefined temperature and subsequently applying a coating that cures rapidly since the solvent evaporates upon direct contact with the hot metal.

The invention relates to a romper suit for crawling babies, characterised in that it is produced using two types of fabric, namely: an inner fabric made from 100% cotton or a mixture of cotton and polyester, which protects the baby's skin or clothing; and an outer mesh fabric made from 100% polyester or 100% nylon. The romper suit is provided with: a bias tape around the neck and armholes, made from the inner fabric; elastic sewn between the first and second fabric at the waist, ankles and cuffs; protectors at the knees and the soles of the feet, comprising an inner padded layer and an outer non-slip layer; and snap-fasteners or buttons on the upper part of the shoulder. The romper suit can be produced with or without sleeves.

The invention relates to a reconfigurable element based on (chaotic) nonlinear dynamics, which is designed to be used in three different multivibrator configurations. A nonlinear dynamic system, under parametric modulation control, operates as an adjustable oscillator with different dynamic states which, in turn, produce different multivibrator configurations (monostable, astable and bistable). The reconfigurable multivibrator takes the form of an adjustable circuit including an input stage for receiving at least one input voltage signal and an output stage which produces an electronic digital output signal having two levels. The all-in-one reconfigurable multivibrator, which consists of a nonlinear oscillator electrically coupled to input/output circuitry, is used in, but not limited to, at least three basic applications, namely: an irregular-width-pulse generator, a trailing-edge trigger, and a full bistable SR logic device (flip-flip).

The present invention as stated in the present description relates to the production of a homogeneous chemical mixture that can be used for construction and/or coverings, especially for electrical connections, forming a 100% water/electricity installation, which comprises a preparation method that is totally simple and effective and which will be used in various areas in order to cover electrical cables, walls, etc., this dielectric mixture comprising at least three basic ingredients, i.e. hexane, xylene and paraffin, in specific amounts and with uniform, homogeneous mixing, which, when combined, will yield this dielectric, antioxidant, anticorrosive and impermeable mixture.

A security seal or tie for securing and closing containers, which ensures that said containers are tamper-proof, intended for use in the securities and banking industry for the protection and transport of documents, said seal or tie comprising: a) an identification tab with etched information; b) an insertion clasp and lock having lips that indicate tampering and manipulation at the inlet and outlet thereof, needles, bolts and awls that indicate manipulation and/or tampering, as well as a floating tab allowing the insertion of the toothed strip; c) three tapered securing needles with a height of 4 mm; d) an adjustable strip having raised trapezoidal saw teeth on the front thereof and, on the rear, reinforcing beads between the teeth and etched information; e) a smooth area with etched information; f) a pull groove at the insertion end for the abutment installation thereof; and g) a strip tip.