Abstract:
An apparatus for producing ozone from oxygen comprises a high voltage electrode connectable to an electric current source; a ground electrode spaced from the high voltage electrode and having an upstream end and a downstream end; a dielectric element positioned between the high voltage electrode and the ground electrode; a path for air flow positioned between the dielectric element and the ground electrode; and, a current collector positioned downstream of the high voltage electrode and comprising an extension of the ground electrode.
Abstract:
An ozone generator has a dielectric element, first and second opposed end cap members and a gas passageway positioned between a high voltage electrode and a ground plane and positioned internal of the dielectric element, and at least one securring member extending between the opposed end caps whereby the securring member holds the end caps in place.
Abstract:
An apparatus for producing ozone from oxygen comprises a high voltage electrode (14) connectable to an electric current source (50); a ground electrode (12) spaced from the high voltage electrode and having an upstream end and a downstream end; a dielectric element (16) positioned between the high voltage electrode and the ground electrode; a path for air flow (18) positioned between the dielectric element and the ground electrode; and, a current collector (60) positioned downstream of the high voltage electrode (12) and comprising an extension of the ground electrode.
Abstract:
An appliance comprises an electrically operated member; and, a power control system electrically connectable to a power source and the electrically operated member, the power control system reducing the voltage delivered to the electrically operated member to an essentially constant level less than the voltage delivered by the power source when the appliance is actuated. Methods of using the power control system are also provided.
Abstract:
A surface cleaning apparatus (60) comprises a dirty air inlet(64), a clean air outlet (12), an air flow passage extending between the dirty air inlet and the clean air outlet (12), the air flow passage in fluid communication with a motor and fan assembly (15) which is driven by at least one battery (5, 6) positioned in the vacuum cleaner external to the air flow passage, and at least one cooling fan (26, 27) positioned external to the air flow passage positioned to direct airflow at the at least one battery (5, 6).
Abstract:
A surface cleaning apparatus (10) comprising a member having a dirty fluid inlet (12), a fluid flow path extending from the dirty fluid inlet to a clean air outlet (14), a portable cleaning unit (16) positioned in the fluid flow path and comprising a cyclonic separation stage (18) and a suction motor (20), and a wheeled base mounted to the portable cleaning unit, the wheeled base (58) having at least one front wheel (66) and two rear wheels (68a & 68b)
Abstract:
A method and apparatus is provided which uses a plurality of batteries (38) that are sequentially used to power an appliance (10). While one or more batteries (38) are used to power the appliance, one or more spare batteries (38) are charged for subsequent use. The rate of charge of the batteries (38) is comparable to the rate of discharge of the batteries (38) by the appliance (10) or faster. Thus the appliance (10) may be essentially continuously used by the user removing the discharged battery (38) and inserting a charged battery (38).
Abstract:
A vacuum cleaner (20) that includes a cyclone separator (38) has a coarse filter (F) disposed in the path of air flowing towards the outlet of the cyclone separator, for holding back hair that would otherwise tend to clog the vacuum cleaner (20), while minimizing impedance to air flow. In a preferred embodiment, the coarse filter (F) comprises a disc-shaped lattice structure of barrier elements (68) that are arranged to "catch" the animal hair.
Abstract:
Apparatus for the recovery of water vapour from atmospheric air, for condensation into liquid water and having a housing for passage of air, a water vapour adsorbent cell in the housing to adsorb water vapour from air passing therethrough, inlet and outlet openings in the housing, so that air can be introduced through the inlet and passed through the adsorbent cell, and exited through the outlet, a cell fan for passing air through the adsorbent cell, closures for closing and opening the openings, a cell heat exchanger incorporated in the adsorbent cell, so that heat generated by the adsorption of water vapour from air may be transferred so as to maintain the temperature of the adsorption cell substantially constant within a predetermined range during adsorption, a radiator connected to the cell heat exchanger means, for disposing of heat transferred from the cell, a heating element associated with the adsorbent cell, and operable so as to heat the cell to remove water vapour, a condensing heat exchanger to receive heated air carrying water vapour from the adsorption cell and chill it so as to condense that water vapour in the air.
Abstract:
An apparatus for producing ozone from oxygen comprises a high voltage electrode connectable to a current source; a ground electrode spaced from the high voltage electrode and having an upstream end and a downstream end; a dielectric element positioned between the high voltage electrode and the ground electrode; a path for air flow positioned between the dielectric element and the ground electrode; and, a current collector positioned downstream of the high voltage electrode and comprising an extension of the ground electrode.