Abstract: A face mask is provided. The mask comprises a body defining an interior side and an exterior side of the face mask; a one-way inlet valve that only allows gas to pass from the exterior side of the body to the interior side; and a one-way outlet valve that only allows gas to pass from the interior side of the body to the exterior side. By providing a face mask configured in this manner, the mask is able to provide fresh air to the wearer while reducing the likelihood of contamination by pathogens or other toxic matter.

Abstract: Toroidal fluxgate current transducer comprising a ring shaped fluxgate sensing unit (6) comprising a ring-shaped support (40), a saturable magnetic core (38) mounted on the support (40), an excitation coil (44) wound around the support and saturable core and a magnetic shell (32) mounted around the excitation coil, ring-shaped support and saturable core. The support is ringed-shape and comprises terminals (50,48) fixed to the support, a first pair of said terminals connected to ends of the excitation coil, and a second pair of said terminals connected to ends of a secondary coil of the current transducer.

Abstract: A magnetron includes an anode with an anode casing at least partly surrounding the anode. A pair of permanent magnets on each side of the anode define an interaction region and create a magnetic circuit defining a magnetic field through the interaction region. A mass of magnetically permeable material is positioned in a vicinity of the magnetic circuit. The mass is arranged to be slidable over the anode casing. A locking device secures the position of the mass to set the strength of the magnetic field through the interaction region.

Abstract: Toroidal fluxgate current transducer comprising a ring shaped fluxgate sensing unit (6) comprising a ring-shaped support (40), a saturable magnetic core (38) mounted on the support (40), an excitation coil (44) wound around the support and saturable core and a magnetic shell (32) mounted around the excitation coil, ring-shaped support and saturable core. The support is ringed-shape and comprises terminals (50,48) fixed to the support, a first pair of said terminals connected to ends of the excitation coil, and a second pair of said terminals connected to ends of a secondary coil of the current transducer.

Abstract: A magnetron includes an anode with an anode casing at least partly surrounding the anode. A pair of permanent magnets on each side of the anode define an interaction region and create a magnetic circuit defining a magnetic field through the interaction region. A mass of magnetically permeable material is positioned in a vicinity of the magnetic circuit. The mass is arranged to be slidable over the anode casing. A locking device secures the position of the mass to set the strength of the magnetic field through the interaction region.

Abstract: An electrical current sensor comprises a magnetic circuit with an air-gap, a magnetic field sensor positioned in the air-gap, and a secondary coil surrounding a branch of the magnetic circuit. The magnetic circuit comprises at least two parts (18, 20) that are assembled together, a branch portion (45, 46) of each part being insertably received in a central cavity of the secondary coil in an axial direction (A). The air-gap (30) is arranged between overlapping branch portions of each magnetic field circuit part.

Abstract: A method and system for optimally drying ink printed on the face of a substrate material. According to the method and system, a variable output dryer is provided having at least one variable output element for producing a plurality of dryer configurations. The method further includes the steps of depositing ink on the substrate material, reflecting light energy from the face surface of the printed ink while in a liquid state and measuring the intensity of the reflected light energy to yield a penetration time indicative of the time elapsed to dry the printed ink. The dryer is then adapted to assume one of the dryer configurations based upon the penetration time; and the ink printed on the face of the substrate material is dried by the variable output dryer.

Abstract: An electrical current sensor comprises a magnetic circuit with an air-gap, a magnetic field sensor positioned in the air-gap, and a secondary coil surrounding a branch of the magnetic circuit. The magnetic circuit comprises at least two parts (18, 20) that are assembled together, a branch portion (45, 46) of each part being insertably received in a central cavity of the secondary coil in an axial direction (A). The air-gap (30) is arranged between overlapping branch portions of each magnetic field circuit part.

Abstract: A magnetron of the type having a strap ring has protruding regions of the strap ring arranged so as to increase the capacitance between the strap ring and another strap ring or between the strap ring and anode vanes. Increasing the capacitance at selected portions of the strap ring allows control of the frequency response of the magnetron.

Abstract: A magnetron output arrangement includes a coaxial output adapted to be coupled in an endfire configuration to a rectangular waveguide. The waveguide has a flange for mating with the magnetron output arrangement. The coaxial output includes a central conductor. The output arrangement further includes a plate located in a predetermined position with respect to the central conductor. The plane of the plate is arranged to be substantially perpendicular to the axis of the coaxial output. The plate is located a predetermined distance from the end of the central conductor, such that the coaxial output in use couples with the plate so that the output coupling is substantially the same regardless of the type of waveguide flange employed.

Abstract: A method for requesting and dispatching emergency services to a wireless communications network customer (102) is provided. When a request for emergency services is transmitted by a customer (102), the request is sent to a monitoring center (108), whereupon the monitoring center (108) evaluates the location of the customer (102), the personal profile of the customer (102), and the nature of the request. The monitoring center (108) then issues an appropriate dispatch to a pool of emergency services providers (110).

Abstract: A method for requesting and dispatching emergency services to a wireless communications network customer (102) is provided. When a request for emergency services is transmitted by a customer (102), the request is sent to a monitoring center (108), whereupon the monitoring center (108) evaluates the location of the customer (102), the personal profile of the customer (102), and the nature of the request. The monitoring center (108) then issues an appropriate dispatch to a pool of emergency services providers (110).

Abstract: Systems and methods are provided for delivering containers filled with goods (such as groceries and foodstuffs). According to embodiments of the invention, a delivery order is taken from a customer for a set of goods; the set of goods ordered by the customer are packed in a container; the container with the stored goods is transported to the residence of the customer; and the container is locked to a docking station at the residence of the customer. Thereafter, using a key, the customer may unlock the container and remove the ordered goods from the container. Additional embodiments for facilitating the delivery and ordering of goods are also provided.

Abstract: A method for configuring and operating a telecommunication apparatus having a user interface module handling communication with an operator, a teleprocessing module handling telecommunication procedures during operation and an editor. A first set of graphic objects related to parameters representative of telecommunication protocols, networks and hardware components used in the apparatus are displayed in a first window. These parameters are stored in a first file which can be updated by both the user interface module and the telecommunication module and can be read by the telecommunication module. A second set of graphic objects related to parameters representative of problem determination procedures are displayed in a second window. These are stored in a second file which can be updated by the user and telecommunications modules and read by the user module. A third set of graphic objects related to the state of the apparatus are displayed in a third window.