Abstract:
A method is provided of enabling access for a terminal (12-1) to a remote network (60) via a mobile network (40). A first connectivity service function (30) is provided as part of the mobile network (40). A second connectivity service function (20) is provided as part of the remote network (60). A third connectivity service function (10) is provided associated with the terminal (12-1). The first connectivity service function (30) is adapted to cooperate in establishing a first layer 2 tunnel (25) between itself (30) and the second connectivity service function (20). The first connectivity service function (30) is also adapted to cooperate in establishing a second layer 2 tunnel (15) between itself (30) and the third connectivity service function (10). The terminal (12-1) thereby has layer 2 access into the remote network (60) through the first and second tunnels (25, 15) using the first, second and third connectivity service functions (30, 20, 10).
Abstract:
A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas and a halide component that includes a rare earth halide. A source of oxygen which includes a lanthanide oxide is present in the discharge vessel. The source of oxygen provides oxygen for a regenerative cycle which reduces blackening of the lamp walls by tungsten from the electrodes.
Abstract:
Survival light consisting of a disk with wick installed on the top floating on the surface of a combustible fluid that can reach and be sucked up by the wick through vertical holes penetrating the disk and through horizontal channels leading the combustible fluid from the periphery of the disk to the central area where the wick is installed and where the combustible fluid is a layer on top of a non-combustible fluid such as water.
Abstract:
A high pressure sodium discharge lamp includes an arc tube which encloses a discharge sustaining fill which comprises sodium. Electrodes extend into the fill for generating an arc discharge in the fill during operation of the lamp. At least one of the electrodes includes a coiled coil which supports an emitter material thereon.
Abstract:
An apparatus comprising a first portion, a second portion and a processor. The first portion is configured to generate a count signal in response to a number of oscillations of a clock signal. The first portion is powered by an unswitched power source. The second portion is configured to generate an interrupt signal in response to the count signal and a predetermined stored value. The second portion is powered by a switched power source. The processor is configured to (i) receive the interrupt signal and (ii) generate the switched power.
Abstract:
An apparatus comprising a first portion, a second portion and a processor. The first portion is configured to generate a count signal in response to a number of oscillations of a clock signal. The first portion is powered by an unswitched power source. The second portion is configured to generate an interrupt signal in response to the count signal and a predetermined stored value. The second portion is powered by a switched power source. The processor is configured to (i) receive the interrupt signal and (ii) generate the switched power.
Abstract:
Apparatus for measuring mass flow of a fluid stream comprising inlet and outlet conduits for the fluid stream, at least one resilient flow tube having fixed mounting ends communicating with the inlet and outlet conduits, a vibrator for oscillating the flow tube transverse to the axis of the flow tube, sensors for generating signals corresponding to the oscillating motion of the flow tube and a signal processing unit for determining the mass flow from said signals on the basis of the Coriolis reaction force by the fluid against the flow tube. According to the invention the flow tube is formed as a symmetrical loop around the amount ends, said loop providing a change in the direction of flow which is greater than 360.degree., and vibrator is located on the flow tube at a point adjacent the mounting ends. Method for measuring mass flow of a fluid stream, wherein the said at least one flow tube is oscillated at a resonant frequency higher than the fundamental resonant frequency of the flow tube.
Abstract:
A Coriolis type apparatus for measuring mass flow of a fluid stream, comprising at least one flow conduit which is oscillated at a resonant frequency transverse to the direction of flow while said fluid flows therethrough, two sensors for generating analog signals corresponding to the motion of the flow conduit, and signal processing means for determining time difference between said analog signal, said signal processing means including means for converting said analog signals into series of digital signals and means to compute from said series of digital signals said time difference by using Fourier transformation. Each of the analog signals generated by the sensors is converted into a series of digital signals by an incremental type analog-digital converter having a comparator, an up-down counter and a digital-analog converter.
Abstract:
The invention concerns apparatus for performing underground measurements during drilling of underground strata using conventional measuring instruments. It comprises a closed instrument casing filled with oil, an adaptor coupling the casing to the drilling pipe, a spring holder connected to the instrument casing and carrying damping spring means, a helical plate controlling angular displacement and a piston-and-cylinder displacement control device, a first bore in the adaptor for conveying mud to a downward section of the drilling pipe, a second closable bore in the adaptor for permitting mud to flow from the annular space around the pipe through the instrument casing, and a closable bore in the instrument casing for communicating the pressure in the interior of the drilling pipe to the instrument casing.