Abstract: To provide a temperature sensing tube for an expansion valve in which a hunting can be prevented by slowing of a temperature reaction rate of an expansion valve, a ceramic sintered member serving as a heat transfer delay member (3) in a temperature sensing tube (1) is fixed so as not to directly contact with a tubular member (2) by fixing springs (4, 4) provided at both end portions (13, 13), whereby a heat transfer from the tubular member (2) to the ceramic sintered member becomes slow, temperature is not transferred from a mated piping directly via the tubular member, whichever outer surface of the temperature sensing tube 1 contacts with the piping, and a reaction rate with respect to a temperature rise of the expansion valve can be made slow.

Abstract: Temperature sensor with a temperature-dependent actuating device (12) comprising a capillary tube (14) which is filled with a gaseous or liquid medium which—in case of temperature changes along a measuring distance formed by the capillary tube (14)—effects a pressure or volume change and which comprises a path transmission element (16) which is provided medium-tight at one end of the capillary tube (14) and exerts a stroke movement depending on the pressure or volume in the capillary tube (14), and with a sensor which is designed as a Hall-effect probe (27) and which detects, contact-free, the stroke movement of the path transmission element (16) via a magnet (34) arranged on the path transmission element (16) or a section pointing toward the Hall-effect probe (27) on the path transmission element (16) of a magnetic material, characterized in that the path transmission element (16) is fixed on the housing bottom (25), and that a printed circuit board (28) taking up the Hall-effect probe (27) is arranged—separ

Abstract: This invention relates to maximum/minimum thermometer of the type comprising an expansion liquid, a transfer liquid and indexes for recording the maximum and minimum temperatures. Described in particular are new transfer liquids designed to replace conventionally used mercury and new indexes suitable for use in the disclosed thermometers.

Abstract: A method for distributed voice conferencing in a fast packet network packetizes the speech into speech fast packets. The speech fast packets are transmitted to a central conference handier. The conference handier then provides the speech fast packets to the appropriate users. Another method of voice conferencing in a fast packet network is to send the speech fast packets directly to every other user in the voice conference.

Abstract: Apparatus for measuring temperature at a hot point along an energy transmission cable (1) when the temperature exceeds a fixed limit temperature, the apparatus comprising a tube (3) containing a liquid which is vaporizable in the vicinity of said limit temperature and which is disposed in the energy transmission cable or in contact with its periphery, together with means for detecting an increase in the vapor pressure of said liquid at least one point along said tube, the apparatus being characterized in that said tube is connected at one of its ends to means for detecting an increase in the pressure exerted by the liquid at said end.