Abstract: A method and apparatus for controlling the operation of a “lean-burn” internal combustion engine in cooperation with an emissions control device capable of alternatively storing and releasing an exhaust gas constituent when exposed to exhaust gases that are lean and rich of stoichiometry, respectively, determines an ability of the device to store the exhaust gas constituent by initiating a lean engine operating condition immediately following a first purge event; discontinuing the first lean engine operating condition in favor of a second purge event when the instantaneous efficiency of the device falls below a reference value; and determining the amount of excess fuel necessary to release the thus-stored amount of exhaust gas constituent.

Abstract: Workability and operability of hydraulically-operated equipment is enhanced by optimally changing in accordance with the work content a responsiveness of an output signal relative to an input signal of each hydraulic control device, which constitutes a hydraulic system, at times heightening quick reaction capabilities, and at other times heightening steadiness. As a quantity of state of a load pressure signal of a hydraulic actuator, for example, is inputted to a response suppressing portion, and in accordance with a high-pass filter, a higher frequency fluctuation component in a pressure signal is extracted.

Abstract: A system for automatic charging pressure control using an exhaust gas turbocharger with a variably adjustable turbine cross-section and for automatic exhaust gas recirculation control in the case of an internal-combustion engine, particularly a diesel engine. An automatic control system has a first controller which has an output for the variation of the turbine cross-section of the exhaust gas turbocharger. The command variable for the automatic exhaust gas recirculation control in a first low load-rotational speed range is the air flow rate in the intake pipe. The command variable for the automatic charging pressure control in a second higher load-rotational speed range is the charging pressure in the intake pipe. For the automatic exhaust gas recirculation control, an exhaust gas recirculation pipe connects the exhaust gas pipe with the suction pipe.

Abstract: A thermal barrier enclosure system, comprising one or more thermal barriers, providing active temperature control without an active heat pump, and enabling rapid recharge and thermal isolation of the onboard thermal storage material or payload. The thermal barrier enclosure system is used to control the temperature in a shipping container or a refrigerator. Thermal control is achieved with one or more thermal control barriers comprised of an insulation barrier, a temperature sensitive device, and a thermal conduit through which energy flows. The combination of the temperature sensitive device and thermal conduit forms a thermal regulator that varies the thermal energy flow as the regulator is operated from its open to its closed position, and vise versa. By positioning one or more thermal control barriers in a thermal enclosure, tight-tolerance temperature control can be achieved even when the external temperature may vary above or below the control volume temperature.

Abstract: A thermoelectric cooling system having an electric circuit including a direct current (“d.c.”) power source providing direct current through the electric circuit, a thermoelectric module having at least one heat sink and at least one heat source capable of being cooled to a predetermined temperature range, and a control assembly. The d.c. power source, the control assembly, and the thermoelectric module being connected to each other in series. The control assembly comprising a thermostat control switch mechanism and a resistive element connected to each other in parallel. The thermostat control switch having a sensor generally coupled to the heat source of the thermoelectric module, the thermostat control switch mechanism being open in the predetermined temperature range.

Abstract: A multi-type pulse-tube refrigerating system includes a common compressor 1 having a sucking port 1b and a discharging port 1a, a plurality of paralleled pressure changeover valve units 21, 22 and 23 connecting between the sucking port 1b and the discharging port 1a of the compressor 1, and a plurality of pulse-tube based cryogenic temperature generating devices 310, 410 and 510 connected to the respective pressure changeover valve units 21, 22 and 23. Employing such cryogenic temperature generating devices 310, 410 and 510, each of which is void of moving parts, limits vibrations. Moreover, instead of the pressure changeover valve units 21, 22 and 23, employing a common pressure changeover valve unit 24 for the units 21, 22 and 23 makes the refrigerating system more compact.

Abstract: The universal power generator utilizing the energy of wind, water stream, or a sea waves for manufacturing clean water from humid air is shown in FIG. 1 by the side 1 and front 11 views. The above generator contains the following units: swing system which are comprised of the pendulum system (54,56) sail blade systems (2,4,66,68). The sail system is formed of a plurality of blades (a, b, c, d) installed on two frames (4,66), which swing on two horizontal axles (6,8) which are disposed according to the wind direction or the flow of water movement by weather cock system. The tips of the lower blades can be used as paddles. If the upper blades (a) of the frame (4) and the lower blades (b) of the frame (66) receive any stream of energy then the other blades (c) of the frame (66) and lower blades (d) of the frame (4) move in manner like a weather cock at the same time. At the end of each swing, the blades change their action.

Abstract: The present invention is generally directed to a method for modifying a vending machine to provide a vending machine for storing product at a temperature no greater than −40 degrees Celsius. The method of the invention includes the steps of replacing an existing refrigeration compressor with a different compressor having a higher compression and replacing an existing refrigerant with a more efficient refrigerant. Then, the length of an existing capillary tube was increased (preferably to approximately 21 inches). Finally, a new thermostat capable of achieving a −40 Celsius set point. In addition, in the preferred embodiment, the pre-existing thermostat was rewired into a safety switch, which is operable to disable the vending machine from dispensing product if the temperature exceeds the set point. A novel business method is also provided; namely a method of manufacturing and distributing ice cream.

Abstract: A simple field installable/removable indicator is usable with a field pressure measurement to indicate the degree of subcooling or superheat of refrigerant in a vapor-compression or refrigeration system. The indicator can be attached to a pipe at an appropriate location in the system. The indicator can be used with a pressure measurement obtained at an existing service valve. Temperature-indicating liquid crystals or other chemicals, or alternatively, a conventional thermometer included on the indicator can be used with a scale which shows the superheat or subcooling without requiring saturation curves or tables.

Abstract: An electronic device cooler for cooling an exothermic member arranged in a case, comprises: an air compressor for adiabatically compressing the air in the case; a heat pipe for discharging the heat of the air, which is compressed to have an elevated temperature by the air compressor, to the outside of the case; and an expansion turbine for adiabatically expanding the pressurized air, which is derived of its heat by the heat pipe, to cool it.

Abstract: A dehumidification apparatus which retains a high dehumidification ability is disclosed. The dehumidification apparatus comprises a container having at least one air inlet and at least one air outlet, and has an upper plate covering the container; a fan driven by a motor, which introduces air into the container from the air inlet and discharges air from the container through the air outlet so that air flow passing through the container is formed; and a holder for holding deliquescent dehumidification agent. The holder is contained in the container, which holder has at least one downwardly tapered compartment in which the deliquescent dehumidification agent is held. The deliquescent dehumidification agent held in the compartment contacts the air flow via through holes through which water and air can pass but the deliquescent dehumidification agent cannot pass, which through holes are formed in outer boundary of the compartment.

Abstract: An air handling apparatus and method for installation where a cabinet is connected to a mounting plate with a mounting bracket, the mounting plate is attached to an electrical equipment enclosure. Gravity and latching screws secure the cabinet to the mounting plate and also facilitate a seal between the cabinet and the enclosure. After connection of the cabinet to the mounting plate, the mounting plate and mounting brackets are concealed from view by the cabinet and enclosure. The mounting bracket is a combination of hooks and slots. Panel elements of the cabinet are interconnected using a combination of hooks and slots with seals compressed between the panels. The cabinet includes a horizontally disposed evaporator coil, the evaporator coil between an evaporator blower and a condenser blower. Air conditioning elements are vertically stacked within the cabinet. Airflow in the cabinet is generally upward in both the internal and external circulation regions.

Abstract: An evaporator includes a flat tube extending in a vertical direction and having a drain groove for guiding condensed water downward, at a middle portion thereof in an air flow direction. A corrugated fin joined to the tube is divided by a gap portion into an air upstream side first fin and an air downstream side second fin. The gap portion faces the drain groove of the tube. Accordingly, condensed water produced at the air upstream side first fin can be smoothly discharged from the evaporator through the drain groove.

Abstract: A fluid delivery apparatus provides for controlled delivery of fluids into a fluid system. The fluid delivery apparatus can allow a defined volume of fluid to be delivered to the fluid system cleanly, minimizing fluid waste and spillage. The fluid delivery apparatus can provide a mechanical advantage allowing the fluid to be delivered easily and efficiently to a pressurized fluid system. The apparatus can have a piston and handle arrangement that can reduce wear of the apparatus.

Abstract: Poultry is chilled by moving the birds with an auger in one direction and chilled water in the opposite direction. The auger that moves the birds has a segmented auger blade (23) formed with a series of blade segments (24) which overlap one another along the auger shaft (22) and define water passages (26) therebetween. A grill (36) is positioned in the passages. The water passages permit movement of chilled water through the tank, and the offset edges of adjacent auger blade segments, together with the water movement, causes a tumbling and reorientation of the birds as they are chilled and conveyed through the tank.

Abstract: Ice-filled cold storage means for the repeated freezing and, accompanied by the cooling of air or a cooling fluid, melting of the ice, with an elastic sleeve (2) for an ice supply, which is kept by a substantially dimensionally stable jacket (3) under close heat transfer contact at the location of an air or fluid guide and which is set up for moving air to be cooled or dehumidified or a cooling fluid past the ice supply.

Abstract: Refrigeration process for gas liquefaction which utilizes one or more vaporizing refrigerant cycles to provide refrigeration below about −40° C. and a gas expander cycle to provide refrigeration below about −100° C. Each of these two types of refrigerant systems is utilized in an optimum temperature range which maximizes the efficiency of the particular system. A significant fraction of the total refrigeration power required to liquefy the feed gas (typically more than 5% and often more than 10% of the total) can be consumed by the vaporizing refrigerant cycles. The invention can be implemented in the design of a new liquefaction plant or can be utilized as a retrofit or expansion of an existing plant by adding gas expander refrigeration circuit to the existing plant refrigeration system.

Abstract: A system and process for the recovery of ethylene and propylene from a gas stream, such as a refinery offgas stream. The process comprises withdrawing, cooling, and recovering an overhead vapor stream from a single distillation column. The process includes withdrawing a liquid C3+, C4+, C5+ or C6+ bottoms product stream and recycling a portion of the bottoms steam to maintain an overhead column condenser at temperature refrigeration levels of above −140° F. and withdrawing a vapor side stream rich in propylene or ethylene-propylene.

Abstract: The process and the apparatus serve for the low-temperature fractionation of air. Feed air (1) is introduced into a first rectification column (3). A transfer fraction (6, 7) of density &rgr; is withdrawn in the liquid state from a reservoir (24, 16) within the first rectification column (3), expanded (14, 14a, 18) and fed to a further process step (5, 23). The liquid level in the reservoir (24, 16) is in this case at a first level h1 and is at a first pressure p1. The expanded transfer fraction is fed to the further process step (5, 23) at a second, higher level h2 (h2 >h1) and at a second, lower pressure (p2 <p1). The difference between the two pressures &Dgr;p=p1−p2 is less than the hydrostatic pressure (Phydr=&rgr;·g·[h2−h1]) caused by a liquid column of the transfer fraction between the first level and the second level: &Dgr;p=p1−p2<&rgr;·g·[h2−h1] (g: acceleration due to gravity).

Abstract: Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for supporting the uprising or downfalling pipe, or a joint in the brick receiver is filled with sealing material.

Abstract: A method for the manufacture of designed knitwear on circular stocking knitting and knitting machines is provided using one or more feed stations, starting from a first base yarn (13) and from a second base yarn (14) for the manufacture of a basic knit fabric and from at least one dyed yarn (15) to create a design in the basic knit fabric. Some needles (11) are selected to pick up and knit the dyed yarn (15) and the first base yarn (13) without picking up the second base yarn, while the remaining needles pick up and knit the second and first base yarns (13, 14), excluding the dyed yarn.

Abstract: The present invention relates to a method of producing three-dimensional knits. In accordance with the invention narrowing the loops is done by loops covering a partial area of the needle bed being transferred to needles arranged nearer to the middle of the knit and subsequently knitting further continued, and widening the loops is done by loops covering a partial area of the needle bed being transferred to needles arranged remote from the middle of the knit and subsequently knitting further continued. As an alternative to this, needles may be rendered inactive in a partial area of the needle bed over at least one course and subsequently reactivated.

Abstract: A nozzle for knitting machine comprises a fastening block comprising a U-shaped opening and an inlet hole; a seat under the fastening block adjacent the U-shaped opening, the seat comprising an opening in communication with the U-shaped opening; a trigger member pivotably disposed on both sides of the fastening block, the trigger member comprising a raised member in the opening of the seat; and a sliding block removably received in the U-shaped opening, the sliding block comprising a riser facing the seat, an inlet channel through the sliding block, a block member on the top of the inlet channel, a V-shaped groove on the block member, an aperture extended downwardly from the V-shaped groove being in communication with the inlet channel and the inlet hole. In blowing operation, yarn is placed on the V-shaped groove. Then move the sliding block toward the seat with the riser of the sliding block inserted into the opening of the seat.

Abstract: A knitted web and a method for making the same includes a plurality of wipers, each having a wiper body with a length defined between finished leading and trailing edges and a width defined between opposed, selvaged side edges. The wipers are knitted with continuous yarns, including a primary yarn and a reinforcing yarn, and a separable portion is knitted between individual wipers using a dissociable yarn. Loose primary and reinforcing yarns extending between wipers are cut and the dissociable yarn is removed from between the wipers to separate the web into individual wipers with edges that require no edge treatment to prevent raveling.

Abstract: An article protection tag comprises a first housing defining a compartment therein, an EAS member disposed in the compartment and a second housing fabricated separately from the first housing, the first and second housings jointly defining structure for locking the first housing to the second housing with any one of a plurality of predetermined fixed spacings between facing surfaces of the first and second housings interiorly of the locking structure.

Abstract: A cable-type fastening device for pistol trigger lock comprising a fastening seat containing a tube, the tube being provided with a positioning slot and a communication hole, and a positioning steel ball and an elastic element being mounted within the hole; a sealing block being used to seal the positioning steel ball and the elastic element and a steel cable being mounted at one side of the fastening seat, thereby the positioning steel ball is inserted into the positioning slot of the pistol trigger lock and the positioning slot of the fastening seat is engaged by a engaging hook of an engaging block of the pistol trigger lock such that the fastening seat and the pistol trigger lock are at a locking position and by the use of the steel cable, the fastening device is mounted onto a secured object.

Abstract: A zipper locking device (10) for securing a double-slider zipper (14) comprising a housing (18), a base (16), a vertically extending member (20), a pivoting arm (22), a pair of compressible pads (26), a stabilizer (24), and a means for locking (34) the device (10). The vertically extending member (20) extends from the base (16) and projects in the upwardly direction through an aperture (54) in the housing (18), allowing for the translational movement of the housing (18) along the vertically extending member (20) between a closed position and an open position. The vertically extending member (20) and the pivoting arm (22) each have an aperture (72, 82), which align to allow the entry of a locking means (34) through the apertures (72, 82) when the zipper locking device (10) is in the closed position. The locking means (34) prevents the translational movement of the housing (18) along the vertically extending member (20), securing the zipper sliders (28) of a double-slider zipper (14) within the housing (18).

Abstract: Key assemblies each having a key blank, a transponder, a transponder holder and a key head section cover molded to encapsulate the transponder and at least part of its holder. A logo may be provided on one or both sides of the key head section cover, or on a transponder holder which is molded about a part of the key head section. In one embodiment, the transponder holder is premolded, after which the transponder is inserted in it and resiliently held in place by resilient parts of the holder. The transponder and holder subassembly is then slid into a generally U-shaped key head with the legs defining the sides of that key head sliding in open channels formed by legs of the holder which are moved against the resilience of the cantilever mounting of the legs to the transponder mounting section of the holder.

Abstract: A key plate includes a key plate body that extends longitudinally and has a grip portion and a keyhole insertion portion connected to the grip portion. The keyhole insertion portion includes a flat surface with a generally U-shaped groove formed into the flat surface. The generally U-shaped groove has a longitudinally-extending first cord groove, a longitudinally-extending second cord groove and a transversely-extending connecting groove that is disposed adjacent the grip portion and interconnects the first cord groove and the second cord groove. A method for manufacturing the key plate is also described.

Abstract: The invention relates to a coated metal fastener that is prepared by electrogalvanically coating a metal fastener with a layer of tin and zinc mixed crystals, wherein the tin is from about 50 to about 90% by weight of the mixed crystals layer. The fastener plated with the tin and zinc alloy layer has a number of unexpected properties, including stability at higher temperatures than expected, which is important for retaining the strength of a vehicle joint secured with the fastener during subsequent finishing operations; retention of electrical conductivity, which makes the fastener suitable for use as a grounding member; and resistance to galvanic corrosion when the fastener joins metals of differing electrode potential.

Abstract: For shaping small radii in edge and corner regions of preformed workpieces or blanks, the invention provides for a postforming of exclusively said edge and corner regions by high liquid pressure. For performing the method an apparatus has a die part (forming insert) with expansion spaces constructed in its edge and corner regions.

Abstract: A swaging machine (1) for swaging rod-shaped or tubular workpieces is comprised of an annular forging box (3) mounted in a machine frame (2) so as to be rotated and driven about the axis of movement (A) of the workpiece, where in radial recesses (4) of said forging box forging punches (5) are accommodated, which are acting against each other and are vertically movable via a lifting drive (7) while the forging box rotates at the same time.

Abstract: A shaft straightening and hardening machine, including a holder for a shaft-shaped workpiece, which can be pivoted around an axis which is essentially parallel to the axis of the workpiece. The machine includes a controllable rotary drive for the holder and a coolant bath through which the holder passes as a part of its path of rotation. The holder includes at least one straightening mechanism, which is mounted at a specified point over the length of the workpiece and which acts radially upon the workpiece and can be swung sideways from said workpiece for the purpose of loading and unloading the workpiece. The holder includes several parallel straightening shafts between which the workpiece can be inserted and from which it can be removed. The end face of each straightening shaft is held in a bearing bracket, and one of the straightening shafts can be swung radially sideways. The straightening shafts have radially protruding profiling that act as the straightening elements or mechanisms.

Abstract: An apparatus for deburring the marginal edge of a cylindrical body, comprising a substantially enclosed cylindrical housing having (i) a circular hub, (ii) a continuous, open channel circumscribing the hub, and (iii) a circumferential rim disposed radially from the channel. The channel has (i) an inner sidewall defining the outer wall of the hub and an outer sidewall defining the inner wall of the rim, and (ii) a laterally disposed annular boss interconnecting inner and outer sidewalls so as to connect the hub and rim. A plurality of first, spaced elongated slots and second, spaced elongated slots are formed at opposed peripheries of the boss, and the first slots open through a portion of the inner sidewall and the second slots open through a portion of the outer sidewall; and the first slots are offset from the second slots and disposed radially outwardly from the first slots.

Abstract: An apparatus for forming a spirally wound stator core includes a pair of forming rollers having a wedge-shaped gap therebetween, a winding drum, a drum-drive motor, and a roller presser. A strip of magnetic material is inserted into the wedge-shaped gap to be pressed at a controlled pressure so that the strip is bent into a spiral with one side of the strip being radially inside. The controlled pressure is changed automatically according to a memorized relationship between the rotation speeds of the pair of forming rollers and suitable pressures applied to the strip.

Abstract: A modular mobile bench for supporting a vehicle chassis comprises a modular frame and a plurality of modular fixture holders supported on such frame having fixtures pick-up points on the chassis or vehicle body that is to be suported thereon. The modular frame and fixture holders are constructed and arranged in such a way they can support the entire vehicle chassis in any desired position, upright, upside-down, on either side, on either end, one portion of the vehicle elevated relative to another portion, and at various desired angles and attitudes for working on the vehicle chassis as well as for design purposes.

Abstract: An apparatus for bending a cutting blade rule includes: a guide having a guide passage formed therein for transferring said cutting blade rule in a lengthwise direction; a first rotary body located at an upper position adjacently to a head of said guide; a second rotary body located at a lower position adjacently to a head of said guide and oppositely to said upper position; a first bending member supported by a hole formed on said first rotary body; a second bending member supported by a hole formed on said second rotary body, said second bending member being opposite to said first bending member in a substantial perpendicular direction to said lengthwise direction; a drive means for driving said first and second rotary bodies; and linear drive means for linearly moving said first and second bending members respectively.

Abstract: A forging machine (1) comprises eccentric-driven connecting rods (6), which are vertically movably guided in a forging box (3) radial to the eccentric shaft axis (E), and for a drive connection have a connecting rod small end (12) with a sliding surface at their end facing the eccentric for a non-rotating sliding cooperation with a bearing body (13) rotatably seated at the eccentric (11). To achieve a rugged and nevertheless simple adjustment of the vertical position, the sliding surface (20) of the connecting rod small end (12) forms a sliding path (G) normal to the axial plane defined by the eccentric shaft axis (E) and the connecting rod axis (P) and inclined with respect to the eccentric shaft axis (E), and via an actuator (22) the bearing body (13) forming a corresponding inclined surface (21) is movably arranged relative to the connecting rod (6) firmly supported in the direction of the eccentric shaft axis.

Abstract: An apparatus to normalize a flow rate of a fluid in a main flow channel is provided. The apparatus uses a moveable member, such as a flexible membrane disposed for reciprocating displacement, to produce a constant dither flow of the fluid that is independent of fluid composition. This dither flow generates a signal output from a normalizing flow sensor that both represents a characteristic property of the fluid and a flow rate calibration factor. A similar apparatus to determine the characteristic property or flow rate calibration factor is also provided. The devices disclosed may be used in numerous industrial, process, and medical flow system applications for normalization of flow sensors and to derive other properties of a fluid.

Abstract: An electronic device includes a resonant circuit and an evaluation circuit. The resonant circuit includes an acceleration-sensitive sensor which is excited to vibrate during a testing phase of the acceleration-sensitive sensor. The evaluation circuit is coupled to the resonant circuit to determine a performance reliability of the acceleration-sensitive sensor.

Abstract: Embodiments of apparatus are directed to a rotational shock tester system comprising a disc drive support system, a drop mechanism and an impact apparatus. The disc drive support system includes a rotation plate, wherein a disc drive is coupled to the rotation plate. The drop mechanism is coupled to the disc drive support system and includes an elevating apparatus, wherein the elevating apparatus elevates and releases the rotation plate which is supporting the disc drive. The impact apparatus is releasably coupled to the drop mechanism and is aligned with the rotation plate such that upon release of the rotation plate, the rotation plate impacts the impact apparatus such that the impact apparatus imparts an angular acceleration to the rotation plate and imparts a rotational shock to the disc drive.

Abstract: A leak detection system for testing a sealed product for leaks includes a test chamber, a pressure system that is operable to maintain a substantially constant pressure during a test period, and a leak sensor coupled to the test chamber via a first conduit and the pressure system via a second conduit. The test chamber of the leak detection system includes a receptacle dimensioned to receive the sealed product. Moreover, the test chamber includes a cover dimensioned to operably seal the receptacle at an initial internal pressure when placed into position with the receptacle. The leak sensor of the leak detection system is operable to permit gas flow between the test chamber and the pressure system via the first conduit and the second conduit. The leak sensor is also operable to obtain a value representative of total mass of the gas flow between the sealed test chamber and the pressure system during the test period.

Abstract: A device which scans in a raster mode, in particular to a raster microscope, provides a rapid and inexpensive compensation of the disturbing effects of mechanical vibrations on the scanning process. The device includes a sensor for sensing mechanical vibrations and driving a filter whose output, together with the output of the device for the production of a z-signal, is connected to an adder, the output of which drives the device for changing the distance between the specimen and the sensor.

Abstract: In a method used for checking the effect of swirl ducts in multicylinder internal combustion engines, especially engines with direct injection, swirl numbers are determined with a swirl measuring device in a simultaneous cylinder that can be connected to a cylinder head and related to an engine-specific swirl tolerance band. With a sharp deviation of the swirl number from the swirl tolerance band as a function of the swirl number outside the swirl tolerance band, the corresponding swirl duct and/or filling channel in the cylinder head is subsequently made or designed to be smaller or larger in cross section in one duct section.

Abstract: An evaporative purge system 10 of an internal combustion engine 14 powered motor vehicle is monitored using one or more relatively long time tests in the cruise operating mode of the motor vehicle to screen for emission of vapors which, allegedly, contributes to smog. If emission is detected in the cruise operating mode, a command is generated and stored in memory to subsequently monitor the system in the idle operating mode. The evaporative purge system is subsequently monitored using a relatively short time test in the idle operating mode of the motor vehicle to confirm vapor emission.

Abstract: A process for ascertaining the adhesive behaviour of pressure-sensitive adhesive flat materials such as medicinal adhesive tape and, in particular, pressure-sensitive adhesive application systems such as transdermal therapeutic systems (TTS) is characterized in that a flat material (5) with an adhesive layer (6) of a defined coating weight per unit area and of defined quality of the adhesive mass is adhered with predetermined surface pressure and at a predetermined temperature to an elastic carrier film (4) of defined thickness and elasticity, and that said carrier film (4) is clamped into a test cell (21), in the manner of a membrane, between half-shells (1,2) of a test cell (21), and that the carrier film (4) along with the adhered flat material (5) is subjected, in chronologically repeated sequence, to loading and unloading with alternating elastic stretchings by defined loading forces from the side facing away from the flat material, and that a detachment of the adhesive layer, which detachment arises pro

Abstract: A well logging device of compact reduced diameter compared to the prior art, such well logging device having both short spaced and long spaced types of gamma ray crystal detectors installed in a measurements skid that comprises a relatively small diameter device constructed to withstand high temperatures and pressures, this device comprising a continuous stainless steel tube which provides pressure resistance and also allows low energy gamma ray transparency via large and small windows. This elongate type of stainless steel skid tube is furthermore internally supported by an internal tungsten tube placed therewithin, while the skid design also includes means for pressing the skid tube against a borehole wall so as to obtain more accurate formation density measurements downhole.

Abstract: A mud pulse telemetry adaptive noise canceler (ANC) employs a primary transducer and a reference transducer downstream from a position of the primary transducer. The primary transducer receives a primary signal based on a combination of a transmitted pulse and a reflected pulse, and the reference transducer receives a reference signal based on the transmitted pulse. The ANC linearly relates the secondary signal to the primary signal by means of a fast recursive least squares algorithm and calculates a set of weighting coefficients. The finite impulse response (FIR) filter of the ANC uses the set of weighting coefficients to adaptively noise cancel correlated portions between the primary signal and the secondary signal to produce an ANC output signal based on uncorrelated portions between the primary signal and the secondary signal.

Abstract: A deep tensiometer is configured with an outer guide tube having a vented interval along a perforate section at its lower end, which is isolated from atmospheric pressure at or above grade. A transducer having a monitoring port and a reference port is located within a coaxial inner guide tube. The reference port of the transducer is open to the vented interval of the outer guide tube, which has the same gas pressure as in the sediment surrounding the tensiometer. The reference side of the pressure transducer is thus isolated from the effects of atmospheric pressure changes and relative to pressure changes in the material surrounding the tensiometer measurement location and so it is automatically compensated for such pressure changes.

Abstract: A method and an apparatus are proposed for determining and/or monitoring the quantity and quality of a fluid in which a lowering of the boiling temperature is symptomatic of a deterioration in quality. For this, the filling level and the condition of the fluid—in particular a hygroscopic fluid—are determined successively one after the other by a single sensor of a measuring instrument.