A relatively economical process allows producing sintered shaped parts, such as sliding sleeves in motor vehicle transmissions. Open-pored undercut surfaces are formed at an internal toothing by hypocycloid milling of the part prior to its final hardening.

Surprisingly effective additive formulations for the reduction of highly undesirable yellowing or other discoloration of white, uncolored, polyurethane foam articles are provided. White polyurethane foam exhibits a susceptibility to yellowing and discoloration to a great extent, particularly in relatively short periods of time, than other types of polymeric articles. The inventive additives impart...

Security systems, such as in a home or other building, are interfaced with one another so that alarm messages and other information regarding a first security system are communicated to a second security system. In response, a user at the second system can send commands to the first system, such as for arming or disarming the first system. A user interface device at the second system includes an o...

A security system of the type wherein the occurrence of a monitored event, such as presence or motion of an individual at a first location, triggers an alarm at a second location. The invention provides a means of disabling the alarm during times when the device is subject to repeated actuation under conditions when the cause of the repeated actuation is know, as when workmen are present in the mo...

An imaging system scans a light source output over an object to be imaged, and receives the reflected signal in a multi-region light detector, wherein different regions of the object to be imaged are imaged onto different regions of the detector by the receiving optics, and wherein different regions of the light detector can be actuated separately. The light source scanning is synchronized with th...

A circuit and method for demultiplexing in a receiver a digital data stream including at least two types of data. In one particular application, such a receiver is used in a television system having a digital set-top-box receiver. A first control circuit extracts a packet identifier from an input data packet in the digital data stream, and generates a signal in dependence on whether the input data...

A system and method for detecting unauthorized use of a wireless local area network is described, wherein the network includes mobile units that communicate with at least one access point. First network traffic data is accumulated at a mobile unit. Second network traffic data is accumulated at an access point. The first and second traffic data is communicated to a computer and is correlated by the...

A system for tracking an activity in a healthcare environment includes a master station having a processor, a memory, and a transceiver, badges coupled to objects, each transmitting a unique badge ID, and sensors disposed throughout the environment, each including a transceiver for receiving badge IDs and transmitting to the master station transceiver the badge IDs and a unique sensor ID that rela...

A carrier, such as an autonomous surface treatment device, e.g., a robotic vacuum cleaner, has motive units, such as wheels, for transporting the carrier over a field of operation. The state of the carrier, which can be its position on the field of operation, is determined based, at least in part, on the actual track width of the motive units which will change depending on the carrier's driving mo...

An electrosurgical system is disclosed comprising a generator configured t o electrosurgical coagulation waveforms. The generator includes a closed loop control system for controlling the electrosurgical coagulation waveforms. The closed loop control system includes a sensor configured to sense a tissue property and/or an energy property and to transmit the tissue property and/or the energy proper...

A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module configured to process the sensor signal using a processor, an algorithm, and a map hav...

An electrosurgical generator is disclosed, which includes an RF output stage connected to a DC power supply and first and second connections. The first connection includes a first switching component and a first parallel inductor-capacitor resonant circuit. The second connection includes a second switching components and a second parallel inductor-capacitor resonant circuit. The first and second s...

An apparatus and method are provided for performing, on-the-fly, real time inspection of a composite structure formed by an automated fiber placement machine, through comparison of a visual image of at least a portion of the composite structure to a virtual image of the composite structure. Proper formation of the structure, and/or anomalies within the structure, are determined by comparing the vi...

An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue . The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine whether a tissue reaction has occurre d as a function of a minimum impedance value and a predeterm...

"MéTODO PARA FORMAR UMA ESPUMA DE POLIURETANO RìGIDA LIGADA A UM SUBSTRATO TENDO UMA CAVIDADE ABERTA". Espumas de poliuretano são feitas e ligadas a um substrato tendo uma cavidade aberta; porém reagindo os componentes pré-polímero e poliol na presença de certos agentes de sopro de carbamato. Este processo permite uma cura muito rápida, boa qualidade, que espumas aderentes sejam produzidas em, por...

A method for determination of the zero error of a Coriolis gyro. Appropriate disturbance forces are applied to the resonator of the Coriolis gyro such that at least one natural oscillation of the resonator is stimulated that differs from the stimulating and read oscillations. A change in a read signal which represents the read oscillation and results from the stimulation of the at least one natura...

A metal atomizing device includes a casing with an inlet tube for providing liquid metal into the casing and an outlet is defined through the casing. The inlet tube and the outlet share a common axis. A polygonal impact member is located at an outlet of the inlet tube and a plurality of gas inlets are connected to the casing so as to provide noble gas into the casing and mixed with the liquid meta...

This invention provides a chemically coated surface for the plastics surface such as contact lens. The chemical surface coating comprises of at least one addition polymer prepared from addition monomers selected from a group consisting of acrylates and its derivatives, metharylates and its derivatives, styrene and its derivatives, acrylamide, methacrylamide, dimethacrylamide, N-monosubstituted acr...

A homogeneous blend of a low density polyethylene with a metallocene-catalysed polyethylene having a density of from 0.906 g/cm³ and a Dow Rheology Index of at least 5/MI₂,MI₂ being the melt index measured according to ASTMD-1238 condition 190° C./2.16 kg and the Dow Rheology Index being determined by a dynamic rheological analysis performed at 190°.

By using a high molecular weight syrup phase comprising PMMA or PMMI, it is possible to distribute fillers in the polymerization batch so that the distribution of the fillers remains homogeneous during the polymerization. A homogeneous foam results.