Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.

Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.

Abstract: A virtual or augmented reality display system that controls a display using control information included with the virtual or augmented reality imagery that is intended to be shown on the display. The control information can be used to specify one of multiple possible display depth planes. The control information can also specify pixel shifts within a given depth plane or between depth planes. The system can also enhance head pose measurements from a sensor by using gain factors which vary based upon the user's head pose position within a physiological range of movement.

Abstract: A wet/dry vacuum cleaner having a cover closing off the upper end of the vacuum cleaner, a lid connected to the cover having a collector extending into the lid and a filter assembly extending downwardly from the collector into water tank, the lid having an exhaust port for the vacuum cleaner communicating with a exterior thereof. A volute is disposed internally of the lid and coupled to the exhaust port, the volute being generally horizontally mounted in the lid forming a flat volute for accumulating air flow.

Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.

Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.

Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.

Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.

Abstract: A cleaner spotter tool for a wet/dry vacuum cleaner having a fluid containing tank, an extractor nozzle housing coupled to the tank, a fluid delivery pump mounted in the nozzle housing, a tubing fluidly coupled to both the tank and the pump for delivering fluid from the tank to the pump, and a spray nozzle on the nozzle housing coupled to the pump for spraying fluid out of the pump.

Abstract: A wet/dry vacuum cleaner having a cover closing off the upper end of the vacuum cleaner, a lid connected to the cover having a collector extending into the lid and a filter assembly extending downwardly from the collector into water tank, the lid having an exhaust port for the vacuum cleaner communicating with a exterior thereof, A volute is disposed internally of the lid and coupled to the exhaust port, the volute being generally horizontally mounted in the lid forming a flat volute for accumulating air flow.

Abstract: A cleaner spotter tool for a wet/dry vacuum cleaner having a fluid containing tank, an extractor nozzle housing coupled to the tank, a fluid delivery pump mounted in the nozzle housing, a tubing fluidly coupled to both the tank and the pump for delivering fluid from the tank to the pump, and a spray nozzle on the nozzle housing coupled to the pump for spraying fluid out of the pump.

Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.

Abstract: An apparatus (3) for generating a three-dimensional kaleidoscopic image, comprising a screen (4) for the projection of images thereon, and a plurality of mirrors (31,32,33) surrounding the screen, wherein the screen is substantially shaped as a portion of a surface of a polyhedron or sphere with an icosahedral group symmetry of reflection, and the plurality of mirrors are aligned with planes extending through a projected centre of said polyhedron or sphere and intersecting each edge of the screen such that an image generated on the screen is reflected in the mirrors to produce an apparent three-dimensional image of said polyhedron or sphere.

Abstract: Embodiments of the invention include a system and a method for purifying and storing water produced from atmospheric air to provide a safe, inexpensive source of potable water. Improvements over prior systems and methods include the use of two isolated air chambers, one for ambient air used to capture moisture from the atmosphere, and another for clean rechargeable air to convert the captured moisture into condensate and using a rotating mass of hygroscopic material and a condensation unit, each of which is periodically sterilized by heat.

Abstract: A method for controlling the microbial contamination of water. Impure water is passed through a container packed with a specially-treated antimicrobial zeolite material. Zinc ions incorporated into the framework of the zeolite provide the antimicrobial effect. The method is designed to control bacterial levels while preserving the taste and potability of the water.

Abstract: Embodiments of the invention include a system and a method for purifying and storing water produced from atmospheric air to provide a safe, inexpensive source of potable water. Improvements over prior systems and methods include the use of two isolated air chambers, one for ambient air used to capture moisture from the atmosphere, and another for clean rechargeable air to convert the captured moisture into condensate and using a rotating mass of hygroscopic material and a condensation unit, each of which is periodically sterilized by heat.

Abstract: An apparatus (3) for generating a three-dimensional kaleidoscopic image, comprising a screen (4) for the projection of images thereon, and a plurality of mirrors (31,32,33) surrounding the screen, wherein the screen is substantially shaped as a portion of a surface of a polyhedron or sphere with an icosahedral group symmetry of reflection, and the plurality of mirrors are aligned with planes extending through a projected centre of said polyhedron or sphere and intersecting each edge of the screen such that an image generated on the screen is reflected in the mirrors to produce an apparent three-dimensional image of said polyhedron or sphere.

Abstract: A latch assembly for a wet/dry vacuum cleaner wherein the vacuum has a fan collector cover disposed between the filter cage and water tank of the vacuum cleaner and the drum lid of the vacuum housing the internal vacuum operating components. The filter cage is assembled to the drum lid or power head without tooling or screws while fixing the fan collector cover in place between the filter cage and drum lid. The power head housing is also attached to the bottom cover without screws or other fasteners.

Abstract: A method for controlling the microbial contamination of water. Impure water is passed through a container packed with a specially-treated antimicrobial zeolite material. Zinc ions incorporated into the framework of the zeolite provide the antimicrobial effect. The method is designed to control bacterial levels while preserving the taste and potability of the water.

Abstract: Disclosed is a method and composition useful for controlling microbial contamination in drinking water produced from condensation. The composition comprises a zeolite which is modified to introduce zinc by ion exchange. The method comprises passing drinking water produced from condensation through a column packed with the modified zeolite.