Abstract: An object of this invention is to avoid squeaks caused. There is provided a ceiling embedded-type air conditioner in which a decorative panel (20) having an air suction port (21) and air blow-off ports (22) is detachably mounted onto the air conditioner main body (10), in which three sides of a pedestal portion made of sealing material (27) for sealing the outer circumference of the rectangular air blow-off port (22) are configured by reinforcing ribs (28a, 28b) obtained by integrally molding with the decorative panel, and only one side of the pedestal portion is configured by an air guide member (29) made of a foaming resin molded part.

Abstract: The invention relates to an evaporative cooling device including a stand-alone housing that is not connected to any structure. The housing has at least one vertical side with an opening and an evaporative pad is placed inside the opening. An electric centrifugal blower is placed inside the housing to draw air through the evaporative pad and to discharge the same in a vertical direction through an opening in a top cover. The top cover has a directional spout placed over the opening to direct the air in multi-adjusted directions. The cooling device is intended to be used on wide open playing or sport fields or in open sided warehouses or work stations. A smaller size is intended to be used in semi-confined areas such as verandas, patios, lanais, porches etc. A flexible air duct can be attached to the spout so as to temporarily deliver cooled air to confined spaces such attics in a house. The spout may be adapted to oscillate back and forth to deliver air evenly across a room.

Abstract: There are provided a conduit 9b for transferring a refrigerant to the evaporator 9, a conduit 7b for transferring an absorbent solution to the regenerator 3, and a branch conduit 9a. A check valve 17 is provided for communicating the branch conduit 9a to the conduit 7b. A check valve V3 is provided for allowing the flow from the absorber 2 to the regenerator 3. The valve 17 and the valve V3 are communicated at downstream side to each other. Those check valves maybe assembled in a single unit where a valve is arranged of a (free) ball shape and can be shifted by a pressure difference to switches each valve port, acting as a three-way valve. At the start-up or full condensation mode, the check valve 17 remains open while the check valve V3 is closed. This permits the refrigerant to flow from the condenser 9 via the branch conduit 9a to the regenerator 3.

Abstract: Studies of the variation in latent heat of fluids with temperature and the rate of heat increase with compression were applied to thermodynamic cycles represented in columns (190, 193, 199). This showed that heat may be circulated and that power output (194) can be boosted by catalysts. Practical layouts show that the present 45% efficiency of thermal power stations may be doubled. The invented layouts produce power from reject heat (185, 188) and saves the water required of cooling thermal power stations.

Abstract: A cooler for cooling a plurality of brands of liquid beverages for delivery at taps for dispensing to customers at a desired chilled temperature. The cooler has a heat exchanger with a shell having channels passing through it, each communicating with a keg containing a beverage and a dispensing tap. Chilled coolant, controlled by the heat exchanger flows through the shell to cool the beverage flowing through the channels to the desired temperature. The temperature of the coolant is controlled by a temperature controller to maintain a narrow desired temperature range, just above the freezing temperature. The cooler is capable of cooling each of the channels without having to be installed in a walk-in cooler, allowing its installation proximate the serving taps. Also, the kegs containing the various brands of beer which are connected to the heat exchanger do not have to be kept in a walk-in cooler. 30° F. to 34° F. range.

Abstract: A beverage container including a body and a lower cap having a cooling element mounted thereon that extends into an interior portion of the body. The lower cap is removable for convenient charging (e.g., freezing) of the cooling element. The lower cap is then attached to the body and liquid is inserted into the body through an upper opening. A mixing fixture is integrally formed on the free end of the cooling element, and is used to mix the cooled liquid stored in the body with a powdered substance entered through the upper opening. In one embodiment, the beverage container is a multi-chambered container that includes a rotatable hollow member for storing the powdered substance, and a housing for securing the hollow member to the body such that a curved wall of the hollow member separates the powdered substance from the cooled liquid stored in the body.

Abstract: To provide an economical storehouse of liquor with little temperature change if possible at a low price. A storehouse 1 of liquor having heat insulation housings which consist of polystyrene foam is provided, comprising; a cold-preserving agent accommodation part 10a capable of having cold-preserving agents 15 which can be exchanged, liquor storage parts 11a, 12a, 13a, and 14a capable of accommodating a bottle of liquor, and an air hole for communicating said cold-preserving agents accommodation part 10a to said liquor storage parts 11a, 12a, 13a, and 14a.

Abstract: An absorption cooling machine of the type which uses a refrigerant and an absorbent and which includes a high stage generator, absorber, condenser, heat exchangers, and an evaporator and means for connecting the components to one another to form a closed absorption cooling system. The solution side of the high stage generator is fluidically divided into two sections with a partition plate whereby gas exiting one section at relatively high temperature is further cooled in a second section called a flue gas recuperator (FGR) to improve overall burner efficiency.

Abstract: The present specification discloses a compressor characterized in that a nonpolar solvent is used as a working fluid and an insulation part of a rotating section is formed from a low dielectric constant plastic film having a specific dielectric constant of 1.2 to 3.0. This compressor has been reduced in leakage current and improved in safety and reliability, and therefore can realize energy savings for devices such as a refrigerant system device.

Abstract: A refrigerant flow processor has a vessel with an inlet for receiving recirculating refrigerant from a motor driven compressor and a condenser and having an outlet for returning the refrigerant to an evaporator through an expansion valve. The vessel is configured to establish a vortexing motion of liquefied refrigerant as it travels from the inlet to the outlet. A helical flow guiding component at the vessel outlet causes a highly turbulent flow within the conduit which connects the outlet to the expansion valve. The flow processor reduces energy consumption and operating cost by reducing the load on the motor driven compressor.

Abstract: A liquefaction system includes a source tank containing a supply of liquid nitrogen with a head space there above filled with nitrogen vapor. A pump transfers the liquid nitrogen to a heat exchanger. The heat exchanger also receives natural gas that has been processed in a purifier. The natural gas is liquefied by free cold from the liquid nitrogen so that liquid natural gas (LNG) is produced. The LNG travels to an LNG destination tank for storage and/or transport. The liquid nitrogen is vaporized in the heat exchanger. The resulting nitrogen gas is directed to a process system that may include, for example, cylinders for welding or other applications. Between liquefaction cycles, the purifier is regenerated by a vacuum and nitrogen vapor from the head space of the source tank. Steel shot is mixed with absorbent in the purifier so that the absorbent is cooled for increased performance.

Abstract: The process and the apparatus serve for separating a gas mixture in a separation plant. A feed gas (18) is introduced into a compressor system (6, 16) and then into the separation plant. In the event of loss or partial loss of the compressor system (6, 16) of the first feed gas compressor (6), a first auxiliary stream (91, 92) which has approximately the composition of the first product stream or approximately the composition of the feed gas is compressed (78, 89) to at least approximately the first pressure and is recirculated to the separation plant.

Abstract: A method and apparatus for manufacturing optical components. A burner generates soot, and a surface area collector collects the soot. The burner is disposed such that the soot collected within the surface area collector is substantially not reheated by subsequently deposited soot. Magnetic forces direct the soot to desired location(s) within the surface area collector. The surface area collector operates at relatively low temperatures sufficient to retain rather volatile substances, such as fluorine, in the soot.

Abstract: A method of making a vehicle windshield or other window. An opaque layer (e.g., enamel or water-based) is applied to a glass sheet and then “fired” or cured. The opaque layer is preferably black or dark in color. Thereafter, the sheet with the opaque layer thereon is cut into a desired windshield shape, along a cutting line which extends through both the glass sheet and the opaque layer formed thereon. As a result, on the cut glass sheet the opaque layer extends all the way up to the peripheral edge thereof. In vehicle windshield embodiments, the cut sheet is laminated to another glass sheet via at least a polymer based interlayer in order to form the vehicle windshield.

Abstract: A device for cooling bent glass sheets running along a roller conveyor. Blowing boxes are inserted between the rollers and have a surface opposite the glass sheet at a distance of less than 30 mm and preferably less than 10 mm. The surface is perforated with several holes through which air is discharged in the direction of the glass sheets.

Abstract: A method of producing an all glass, non-porous, multi-component photonic band-gap fiber is provided. The fiber is formed by creating a preform having a plurality of low refractive index glass rods and a plurality of high refractive index glass rods arranged in a pre-determined pattern between the low refractive index glass rods. The preform is heated and drawn to form the non-porous photonic band-gap fiber.

Abstract: A method for fabricating gradient-index rods and rod arrays. A central rod of optical glass having predetermined properties and predetermined outside dimensions is placed inside a tube of optical glass having predetermined properties and predetermined outside dimensions, to form an assembly. The inside dimensions of the tube are substantially equal to the outside dimensions of the rod. The tube is formed of a plurality of coaxial sleeves, the outside dimensions of each interior sleeve being substantially equal to the inside dimensions of the next adjacent sleeve, each sleeve having a selected refractive index so that, together with the tube, the refractive indices from the central rod through the outermost sleeve approximate the refractive index profile of the gradient-index rod to be fabricated. The central rod and sleeve material is selected so that their respective thermal indices of expansion are substantially equal.

Abstract: A compound needle (1) is provided with a slider (8) having two slider springs (11, 12). These are arched away from each other in a section immediately adjoining their insertion funnel (28). The compound needle has a slider slit (4), which initially is relatively narrow at its inlet (15), so that a guide section (4a) has been established there. Thereafter the slider slit (4) widens, so that a running section (4b) is established. The lateral bulge of the slider springs (11, 12) is of such a dimension that the slider (8) runs free in the running section (4b), and is guided without lateral play in the guide section (4a). The compound needle (1) also operates precisely in case of tension forces acting laterally on the slider (8) and requires only a small opening width of its funnel (28).

Abstract: An apparatus and method for using a dry cleaning machine to clean laundry that reduces environmental impacts by the substitution of ozone for the hazardous solvents traditionally used in the dry cleaning washing process. The apparatus and method for dry cleaning includes the steps of filtering the water whereby any debris present in the water is removed, measuring the dissolved ozone concentration of the water, recirculating the water between the tank and the water purifier until a desired ozone concentration is realized ensuring that the desired dissolved ozone concentration of the water is attained prior to the start of the cleaning process and continuously recirculating the water through the dry cleaning washing machine, the water purifier, and the tank during the cleaning process.

Abstract: A trailer hitch lock is disclosed that is particularly useful for preventing the theft of trailers that utilize pintle-type hitches. The lock includes a pair of steel plates which are hinged at one end. An upstanding steel projection is located substantially at the center of the interior of one of the plates. When the plates are pivoted toward their closed position, the pin fits within the opening of the trailer hitch pintle. The forward end of each of the plates includes a flat steel locking flange extending toward the other plate. Each steel locking flange has a hole passing therethrough which cooperates with the other when the plates are in their closed positions so that a padlock can be passed therethrough to maintain the device in a closed position. Located to either side of these cooperating locking flanges are a further pair of steel guards which protect the padlock by preventing a cutting tool from reaching the padlock.

Abstract: An anti-theft device for an endoscope, boroscope or other device is disclosed. The anti-theft device in one embodiment comprises a top portion with a channel through it and a bottom portion hingeably attached to the top portion. A locking mechanism presses the flexible tube against a resting surface. The bottom portion comprises a flange that extends into the top portion when the device is closed. A locking lip turns upon activation of the locking mechanism and extends above the flange when the device is closed, and a cam within the bottom portion pushes a bolt attached to the pressing surface upon activation of the locking mechanism, thereby pressing the flexible tube against the resting surface.

Abstract: A dual mechanism lock comprises a combination lock structure is disposed; a key lock having an internal cylinder and an external cylinder, and a fixing plate is embedded into a fixing groove on the external cylinder; the combination lock structure having a plurality of combination wheels pivotally coupled to the lock core rod connecting to the external cylinder; a spring is disposed between the other end of the lock core rod and the lock body; the internal cylinder is protruded from the panel and the panel is coupled to a knob; a sliding member is corresponsive to coupling and detachment of the inner groove of the external cylinder, and the lock core rod and the combination wheels control the coupling and detachment of the fixing plate and the external cylinder, or the key via the internal cylinder generates the movement for the coupling and detachment.

Abstract: A locking device suitable for NID housing security. The device includes a slotted cylinder, a key and key tool. The slotted cylinder has a resistance component contained in the cylinder. The key is mateable with the slotted cylinder and is held in place by the force of the resistance component. The key head has a cavity therein of a complimentary shape to the key tool so that the tool may be used to turn the key for locking or unlocking. A cylindrical sleeve is used for additional security. The sleeve fits over the mated key and slotted cylinder to protect against release of the parts and may further provide a barrier to removal from a structure being locked. By use of different key head cavity shapes each subscriber may only access their own line in a NID.

Abstract: A device for the transmission of unlocking force from a lock cylinder arranged in a lock cylinder casing to an operating arm in a locking mechanism, especially in a vehicle lock. The device is characterized in that a first end of a cable sheath is fixed to the lock cylinder casing adjacent to the lock cylinder. A second end of the cable sheath is fixed adjacent to the operating arm of the locking mechanism. A first end of a cable arranged in the cable sheath is operatively connected to the lock cylinder, the first end of the cable being designed, when duly acted upon by the lock cylinder for unlocking the door, to be pushed into the cable sheath, thereby causing a second free end of the cable to be pushed out of the other end of the cable sheath and brought into engagement with the operating arm, and by way of the latter transmitting to the locking mechanism the requisite force/movement needed to bring the locking mechanism from a locked position (X) into an unlocked position (Y).

Abstract: The invention provides a door unlocking system with the switch transmitting the signal to the central processing unit (10) according to the rotary direction of the key inserted into the key box to unlock the front and rear doors, wherein the switch is installed at the door latch (30) unlocking the driver door and the switch transmits the signal to the central processing unit according to the signal input in the key rod clip (31) to unlock the other doors, in the inserted status, the key turns to one direction to operate the switch, thereby installing the switch in the driver door regardless of the door chassis and the key rotor.

Abstract: An apparatus is provided for facilitating the turning of a key in a keyhole of a lock. The key has a head, an insertion portion and a connecting portion between the head and the insertion portion. The apparatus has a body for gripping by an operator and applying torque to the key. The body has at least a front surface, a back surface, a peripheral edge where the front and back surfaces meet, and a slot extending through the body between the front and back surfaces. The slot is adapted to allow the insertion portion of the key to extend beyond the front surface and engage the connecting portion when the key is inserted through the slot. In this manner, when torque is applied to the peripheral edge by the operator, the torque is transmitted through the body at least to the connecting portion of the key. This facilitates the turning of the key when the insertion portion is in the keyhole of the lock.

Abstract: A lock-and-alarm assembly includes an escutcheon formed with a through-hole. A lock core is formed with a keyway that can be accessed through the through-hole. A blind is detachably mounted in the through-hole for blocking access to the keyway through the through-hole. A switch is connected to the blind and is actuated upon removal of the blind, which, in turn, results in actuation of an alarm.

Abstract: A lockset mechanism having a semi-permanent mechanical connection between the interior and exterior components thereof is provided. The lockset mechanism includes an exterior cylinder assembly releasably coupled to a mounting plate, an interior cylinder assembly having a locking blade interdisposed between the mounting plate and the interior cylinder assembly for providing a semi-permanent mechanical connection. The locking blade is rotatably positionable from an unlocked position wherein the interior cylinder assembly is uncoupled from the mounting plate to a locked position wherein the interior cylinder assembly is coupled to the mounting plate upon rotation of a knob assembly.

Abstract: The invention concerns a method for forming metal parts by cold deformation, consisting in: (i) mechanically depositing a metal zinc layer on the free surface of the blank of the part to be produced; and (ii) forming said part by plastic deformation.

Abstract: A process for producing a component for reducing the effect of an external mechanical impact, of the type which comprises an essentially tubular metal element which has a jump in its cross section which is such that under the influence of an axial load it can be turned at least partially inside-out as a result of plastic deformation, by means of which process the tubular element is formed by hydroforming from a piece of tube which has a cross section which is constant along its length, during which process part of the length of the cross section is increased in size, and the transitions in the cross section cover a short distance, and during the hydroforming an axial pressure on the piece of tube which is being deformed is set to be such that the transitions in cross section adapt to an S-shape.

Abstract: A method for forming a hub having blind bore with an elevated blind bore face is provided. The blind bore face is elevated relative to the upper surface of an annular disc from which the hub is integrally formed, by first displacing metal radially inward from the upper surface toward the center of the disc to form an elevated surface with a hole therethrough, and second displacing metal radially inward, again from the upper surface toward the center of the disk, to form a hub which incorporates a blind bore having an elevated surface. A blind bore hub formed by the foregoing method is also provided.

Abstract: A tangential rolling head with a basic body including means for loading it in a machine tool, two two-armed levers pivotally supported about a common axis of the basic body one lever arm of which is traversed by a formed-type roll and the other lever arm of which is traversed by a spindle which has a circumferential annular groove, a sheet metal element which has a forked portion and a fastening portion wherein the forked portion engages the annular groove and the fastening portion is adapted to be fastened in a recess of the basic body by means of a pin, characterized in that the sheet metal element is rigidly formed and is supported in the recess on the two sides by means of disc springs slid onto the pin.

Abstract: An assembly and method for leveling a metal strip by working the strip back-and-forth through a plurality of work rolls. Work rolls are disposed for engaging the strip. A backup roll supports the work roll against the strip. A cam roll supports the backup roll and is mounted to a frame with a bracket. A position guide assembly is associated with the backup roll for selectively adjusting a relative position of the backup roll to the cam roll. The position guide preferably comprises a screw and guide pin assembly mounted to the frame and a yoke attached to end portions of a plurality of the backup rolls. The adjusting comprises moving the backup roll relative to the cam roll to avoid undesired wear on only limited portions of the backup rolls.

Abstract: A machine for bending pipes (2; 63; 78) sections or similar of a given section (S1; S2; S3) has a guide device (6) having a longitudinal axis (9) for guiding the pipes (2; 63; 78) in a feed direction (D1) parallel to the axis (9); and a bending member (7) movable with respect to the guide device (6) in a plane (P1) perpendicular to the feed direction (D1), and having an annular guide (50), which has a passage section (45; 61; 76) for the pipes (2; 63; 78) substantially equal to the section (S1; S2; S3) of the pipes (2; 63; 78) and is defined by rollers (40; 52; 82; 67) rotating about respective axes (41; 53; 83; 68) lying in a plane coplanar with the passage section (45; 61; 76).

Abstract: A machine for bending sections (2) having a longitudinal axis (3) and a constant cross section along the longitudinal axis (3) feeds the sections (2) longitudinally in a first direction (D1), and has a first and a second annular die (11, 12); an ass (15) connected to the second annular die (12) and movable in a plane perpendicular to the first direction (D1) to move the second annular die (12) into a number of operating positions with respect to the first annular die (11) to bend the sections (2); and a joint (22; 39) connecting the first and the second annular die (11, 12), and which forces the second annular die (12) to assume a given position with respect to the first annular die (11) for each position assumed by the assembly (15).

Abstract: A cooling and lubricating device for rollers of a cold rolling mill with one or more roll stands for controlling strip tensile stress of the strip across the width by changing the effective roll barrel diameter and/or the roller lubrication with a controlled supply of rolling oil or emulsions. The supply is pressure-, quantity-, and/or temperature-controlled. Several nozzle beams are provided and assigned to individual rollers, respectively. The nozzle beams are connected to side shields of the roll housing. Spray nozzles are mounted in the nozzle beams and distributed across the entire roller width. The nozzle beams are moveable independently relative to the rollers transverse to the strip running direction and in planes parallel to the strip plane. Rotary and linear drives are connected to the nozzle beams for rotating the nozzle beams about the longitudinal axis and for moving them in the longitudinal direction.

Abstract: Between an intermediate roll unit and a dimensioning finishing roll unit of a continuous light-section or wire rod rolling train, a multifunctional section is provided with three parallel lines and at least the first and second rolling lines having rolling blocks and substantially all of the lines including cooling sections and/or temperature equalization sections. Via distributing guides and 180° loop forming path segments, the workpieces are selectively directable from the first line to the dimensioning finishing rolling unit without traveling over the second and third lines and to the dimensioning finishing rolling unit after travelling over all or part of the second and third lines.

Abstract: An internally cooled punch disposed on the end of a ram in a can forming machine. Internal fluid cooling means in the ram avoids the need for externally applied cooling fluids. A plurality of parallel fluid transfer tubes is arranged annularly within the ram. Cooling medium flows through inlet tubes to radial inlet ports which supply the cooling medium to the inner surface of the punch where the medium flows rearwardly through a channel at the inner surface of the punch to radial outlet ports leading to outlet tubes through the ram. Discharged cooling media flows back along the ram and out through a manifold. The transfer tubes are arranged symmetrically in an alternating array circumferentially around the ram to reduce radial temperature gradients within the ram. A central port allows air flow through the ram to aid in stripping the formed container from the punch.

Abstract: A can forming tool pack includes internally cooled die modules. Each die module includes at least one die nib held in a case. Fluid cooling medium is supplied to multiple inlets provided circumferentially in each case, spaced symmetrically around the case. The cooling fluid is channeled from the inlets through clearances between an outer surface of the die nib and the case to cool the die nib. Outlets are spaced circumferentially around the case to return the cooling fluid to the medium supply.

Abstract: A crimping tool for crimping crimp contacts, in particular crimp contacts which are supplied to the crimping tool in the form of a strip, having a pressing device (1) and a feed device (2) for advancing the crimp contacts to the pressing device (1). The feed device (2) comprises an advancing element (3) and means (4) for reciprocating the advancing element (3), so as to provide a reliable supply of crimp contacts to the pressing device (1) in a constructionally simple manner. The means (4) for reciprocating the advancing element (3) comprises two cylinder-piston arrangements (5,6), which are independent of each other.

Abstract: A tooth rolling flat die and a method for forming a tooth are provided. The die has the same service life as those of the conventional tooth rolling flat dies using oil coolant even if conducted by semi-dry forming. A first substantially quarter length portion of the leading teeth section of the die has a first surface roughness Rz of maximum height ranging from 20 to 35 &mgr;m, and a second substantially quarter length portion of the leading teeth section of the die has a second surface roughness Rz of maximum height ranging from 5 to 20 &mgr;m. The die is adapted for semi-dry forming the tooth.

Abstract: A system and method for monitoring a pressure relief device are provided. The system includes a release sensor that provides an indication when the pressure relief device activates. A wireless transmitter is connected to the release sensor and sends a wireless transmission having an activation signal when the indication is provided by the release sensor. A receiver receives the wireless transmission from the transmitter and generates a warning when the activation signal is identified.

Abstract: The electrostatic elements already present in a vibratory gyroscope are used to simulate the Coriolis forces. An artificial electrostatic rotation signal is added to the closed-loop force rebalance system. Because the Coriolis force is at the same frequency as the artificial electrostatic force, the simulated force may be introduced into the system to perform an inertial test on MEMS vibratory gyroscopes without the use of a rotation table.

Abstract: An acceleration pulse modulation method for HYGE (Hydraulically Controlled, Gas Energized) crash simulation sleds uses servo-controlled accelerators on moveable parts of the crash simulator components and acceleration measurement instrumentation for comparison of measure acceleration of the sled with a desired acceleration to enable dynamic adjustment of the total accelerating force applied to the sled via servo-controlled accelerators, based upon measured acceleration error in order to eliminate acceleration error.

Abstract: A method and an apparatus are provided for measuring the amount of entrained gases in a liquid sample. A conduit defining a volume is provided. The conduit has an inlet at a lower end thereof and an outlet at an upper end thereof. Liquid sample is made to flow into the inlet, through the conduit, and out of the outlet. The weight of the liquid sample in the conduit is determined during a flow of liquid sample through the conduit to obtain a first measurement. Thereafter, a difference between the first measurement and a predetermined weight value representing a weight of the same liquid sample flowing through the conduit but containing no entrained gases is determined to obtain a calculated weight of entrained gases in the liquid sample flowing through the conduit.

Abstract: A chamber for trapping soil gases as they evolve from the soil without disturbance to the soil and to the natural microclimate within the chamber has been invented. The chamber opens between measurements and therefore does not alter the metabolic processes that influence soil gas efflux rates. A multiple chamber system provides for repetitive multi-point sampling, undisturbed metabolic soil processes between sampling, and an essentially airtight sampling chamber operating at ambient pressure.

Abstract: The artificial olfactory system is an ultra-sensitive and selective odor sensing system for the detection of odorant molecules down to the part per trillion level. The system includes multiple ultra sensitive frequency sensors, such as sensors based on piezoelectric substrates or micro-machined resonators, capable of detecting frequency changes resulting from the interaction of odorant molecules with the sensor. A coating applied to the sensor greatly increases the surface of interaction between the odorant molecules or biological agents and the sensor. An array of these sensors, each responding to the interaction of an odorant molecule species but in a different manner, results in different frequency shifts. An ultra sensitive frequency measurement device measures as small as part per billion shift in frequency.

Abstract: An explosion-proof apparatus includes a pressure resistant explosion-proof case, heater, manifold, and analyzer unit. The heater is disposed in the pressure resistant explosion-proof case. The manifold is heated by the heater in the pressure resistant explosion-proof case and supplies heat from the heater to an outside of the pressure resistant explosion-proof case by heat conduction. The analyzer unit is disposed outside the pressure resistant explosion-proof case in contact with the manifold, and is heated by heat supplied from the manifold.

Abstract: An inlet system is used in conjunction with a standard gas chromatograph/mass spectrometer to facilitate the analysis of volatile components of substances fired from inkjet pens. The system allows for the investigation of changes in the ink resulting from resistor firing. In addition, the system can be used as a diagnostic tool to detect failures in individual firing chamber. After a block is cooled with liquid nitrogen, an analyte sample of ink is deposited on a stage in a chamber in the block and the chamber is then sealed. The stage is then heated vaporizing a portion of the analyte sample. A transfer gas passes over the stage and mixes with vaporized analyte. The mixture then enters a gas chromatography mass spectrometer which determines the analyte sample's components and relative amounts thereof.

Abstract: An air flow measurement apparatus for verifying one or more apertures in a test piece 126 by mounting the test piece in an air flow such that air flows through the aperture(s) therein. The apparatus comprises a servo pilot valve 114 for adjusting the air flow from the source 104, a pressure sensor P3A for measuring the flow and a computer for determining the effective area of the test piece 126 at a range of different pressures across the test piece, the range including a desired pressure differential. The computer continuously tracks the readings and, when sufficient data has been obtained, computes a curve fit to calculate the effective area of the test piece 126 at the exact specified pressure differential. The present invention avoids any problems associated with differences in atmospheric pressure as well as any problems that are associated with obtaining the exact desired pressure differential across the test piece 126.