Abstract: An ink jet printer comprises a container configured to hold ink, a first coupling component of a duplex coupler formed to the container, and a reservior configured to receive ink from the container. A complementary second coupling component of the duplex coupler is formed to the reservoir. The first coupling component is configured to mate with the second coupling component so as to mitigate leakage of ink.

Abstract: An ink jet print head apparatus which produces variably controls the ink jet print head orifices and the size of the ink jet droplets ejected therethrough, and a method for controlling the size of said orifices and ink jet droplets. The print head apparatus utilizes orifice plates formed from piezoelectric material selected according to expansion and contraction properties for the variable control of the diameter of the orifice through which the ink is ejected from the print head. The variability of the orifice dimensions is controlled by applying a voltage across the piezoelectric members, resulting in improved control over the size of the ejected ink droplets.

Abstract: Disclosed are novel methods for a protecting or preserving wood, wood composites and other cellulosic materials, and in addition, disrupting the feeding behavior and growth cycle of termites, wood-borers and other insects, by applying certain compositions thereto which contain azadirachtin carried in neem tree extracts. Disclosed are novel neem extract compositions for coating, penetrating, treating, and curing said cellulosic materials which are non-toxic and provide long active lifetimes. The compositions contain the neem extracts in combination with binding and bittering agents which enhance the effectiveness of the extracts.

Abstract: An ink jet print head apparatus which produces variably controls the ink jet print head orifices and the size of the ink jet droplets ejected therethrough, and a method for controlling the size of said orifices and ink jet droplets. The print head apparatus utilizes orifice plates formed from piezoelectric material selected according to expansion and contraction properties for the variable control of the diameter of the orifice through which the ink is ejected from the print head. The variability of the orifice dimensions is controlled by applying a voltage across the piezoelectric members, resulting in improved control over the size of the ejected ink droplets.

Abstract: Disclosed are novel methods for a protecting or preserving wood, wood composites and other cellulosic materials, and in addition, disrupting the feeding behavior and growth cycle of termites, wood-borers and other insects, by applying certain compositions thereto which contain azadirachtin carried in neem tree extracts. Disclosed are novel neem extract compositions for coating, penetrating, treating, and curing said cellulosic materials which are non-toxic and provide long active lifetimes. The compositions contain the neem extracts in combination with binding and bittering agents which enhance the effectiveness of the extracts. The compositions are made from natural, active ingredients and are water resistant. The compositions are found to be non-reactive and non-toxic to vertebrates and non-polluting of surrounding soils. When used as intended in non-aerobic applications, the compositions are resistant to oxidation and ozonation. In addition, when used as intended in areas without sunlight, i.e.

Abstract: This invention applies to methods for creating opaque indicia on substrate surfaces and to non-pigmented, moisture-free, jet ink compositions containing only solvents and solvent soluble resins and dyes that exhibit the acceptable characteristics of opacity, contrast, adhesion and machine compatibility. The compositions are on weight percentage basis as stated below. The compositions contain a combination of film forming resins of varying molecular weights of a dry resin solids percentage between 8 and 15%. The resins are chosen from the following: nitrates of cellulose; acrylics; alkyds; vinyl acetate-vinyl chloride copolymers; and styrene acrylic. The quantities of resin are chosen according to the desired viscosity, adhesion strength of film on the subject substrate and the degree of shearing of the drying resin mixture. An optimum balance of adhesion and opacity is stoichiometrically obtained.

Abstract: This invention applies to methods for creating opaque indicia on substrate surfaces and to non-pigmented, moisture-free, jet ink compositions containing only solvents and solvent soluble resins and dyes that exhibit the acceptable characteristics of opacity, contrast, adhesion to non-pigmented, moisture-free, jet ink compositions containing only solvents and solvent soluble resins and dyes that exhibit the acceptable characteristics of opacity, contrast, adhesion and machine compatibility. The compositions are on weight percentage basis as stated below. The compositions contain a combination of film forming resins of varying weight average molecular weights of a dry resin solids percentage between 8 and 15%. The resins are chosen from the following: nitrates of cellulose; acrylics; alkyds; vinyl acetate-vinyl chloride copolymers; and styrene acrylic.

Abstract: An apparatus for generating a deep U-shaped vortex, with the vortex being of sufficient height to include a relatively large air well in its center. The apparatus may be used as an amusement park ride, wherein it comprises an observation platform, a large vessel partially filled with liquid, and an impeller to rotate the liquid within the vessel and thereby create a vortex of liquid within the vessel. When the vortex is created, an air well develops in the center of the vessel, with the air well being of sufficient size to allow the entry of the observation platform therein, with the observation platform being surrounded below and at its sides by the rotating liquid, but without coming into contact with the rotating liquid.