Abstract: A pressure for a chamber is regulated by controlling either the exhaust pressure at the exhaust side of a first vacuum pump or the internal pressure at a compression stage of the first vacuum pump, where the first vacuum pump is directly communicating with the chamber. The pressure of the chamber can be regulated by combinations of the following: controlling the variable rotational frequency of a roots vacuum pump, a pre-vacuum pump, or a high compression pump; controlling a control valve between a pre-vacuum pump and the first vacuum pump; controlling a control valve for injecting gas into the exhaust side of the first vacuum pump or into the compression stage of the first vacuum pump; and controlling a control valve or control valves for bypassing the first vacuum pump or a compression stage or compression stages of the first vacuum pump.

Abstract: A pressure relief or back pressure valve has a valve body with a tubular outlet member having an outlet surrounded by an end face and an annular inlet chamber surrounding the outlet member. The annular inlet chamber has an outer periphery defined by a wall member with an end face in a plane spaced away from a plane defined by the end face of the outlet member. A flexible diaphragm has an outer peripheral edge portion clamped between the end face of the wall member and a clamping member, the flexible diaphragm in an undeflected configuration having a central portion spaced from the end surface of the outlet member. A resilient force applying device is operable to apply a predetermined force to the diaphragm to cause the diaphragm to be deflected into engagement with the end face of the outlet member, and a release device is operable to remove the force from the diaphragm to permit the diaphragm to move away from the end face of the outlet member.

Abstract: A sprinkler drain and test valve for testing sprinkler systems including a housing, an inlet and outlet disposed on either end of the housing, a ball disposed within the housing between the inlet and the outlet having three channels extending therethrough that provide communication between the inlet and outlet. A pressure relief valve is carried within one of the channels for opening the flow through the valve when a pressure from fluid flow exceeds a pre-determined pressure when the valve is in the first position and for blocking fluid flow when the valve is in a hydrostatic test angular position.

Abstract: A novel irrigation valve having a single central inlet and a plurality of radially located outlets each covered by a sliding disk valve. Each disk valve is manually operable and in automatic mode is operated by the interference action of an innovative indexing mechanism which uses the hydraulic pressure of the inlet for its operation a single three-way solenoid valve is energized to actuate a piston within the indexing mechanism while a pin-teeth engagement of a cylinder-indexer assembly converts the linear motion of a piston rod into a rotary motion of an indexing arm. A battery operated timer controls the time intervals between each incremental rotation of an indexing arm in sequence until it is returned to its home position. The housing of the valve is compact and of low profile, thereby simplifying its manufacturing, assembling, installation and maintenance and reducing cost.

Abstract: A solenoid valve for use in heating systems in motor vehicles is disclosed. The solenoid valve includes a housing having a core which is axially movable in the housing and is connected by a shaft to a valve member. The valve member includes two valve heads, spaced apart from one another, one of which contacts an abutment region formed in a base plate of the solenoid housing. The abutment region provides damping to reduce solenoid noise.

Abstract: A manually operable control valve for a breathing apparatus to allow a user to alternate from a primary breathing gas supply to a secondary breathing gas supply. The manually operable control valve includes an elongated valve body and a linearly reciprocal shuttle valve. The valve body includes an axial passageway having a pair of spaced-apart inlet ports. The inlet ports each have an inner end opening onto the axial passageway and an outer end which connects to a separate gas supply. The valve body also has one outlet port having an inner end opening onto the axial passageway and an outer end connectable to the breathing apparatus. The linearly reciprocal shuttle valve is slidably mounted within the axial passageway for movement between a first end position in which it establishes fluid communication between the first inlet port and the outlet port and a second end position in which it establishes fluid communication between the second inlet port and the outlet port.

Abstract: A T-shaped flow divider for use in watering and irrigating systems, with a swivel inflow connector, and a four-position three-hole ball control valve to direct the outflow to one or other or both of the T-arm outflow connectors, or to close off flow completely. The swivel feature permits the outflow connectors to swivel to any convenient circumferential location while the inflow connector is attached to a water supply source. This obviates the need for complete dismantling of rigid systems with 2-way valves for maintenance or changes in the system. Further, the 4-way control valve permits the accurate design of extended irrigation systems, particularly for irregular areas. One version of the flow divider has female threads on the swivel inlet flow connector for attaching to hose bibs and the like, with male threads on the outflow connectors.

Abstract: A pipe joint is provided wherein quick joints assembly are installable in two ports and in a fluid pressure apparatus such as a solenoid transfer valve as in the prior art, while joints with a female thread are interchangeable with the guide joints so as not to rotate even when male screw members for piping are screwed in. The quick joints and the joints with a female thread are interchangeably installed in a fluid pressure apparatus in which two ports are switched and supplied with a pressurized fluid. Although the quick joints and the joints with a female thread can be installed as in the prior art, the joints with a female thread are integrally connected and fixed between the quick joints and the joints with a female thread via a connection member so as not to rotate even when male screw members for piping are screwed in.

Abstract: This invention relates to a bore plug and to a bore plugging method, usually but not necessarily for tubes, and has particular (but not exclusive) application for the isolation of defective heat exchanger tubes. The bore plug comprises a sealing member and a holding member, the sealing member being adapted to span the bore, the sealing member having a longitudinal axis and an axial opening to receive the holding member, the holding member being insertable into the opening solely by axial movement. The method includes the steps of {i} pushing the sealing member axially into the bore, and {ii} pushing a holding member axially into the opening so as to urge part of the sealing member into sealing engagement with an inner surface of the bore.

Abstract: A tubular branch pipe liner is proposed, which has a rigid collar at its end and to this collar is attached a protector consisting of a first portion which is out-spread downwardly and curved to fit on the lower face of the collar and is fixed thereto, a second portion which is roughly cylindrical and fitted into the inner peripheral face of the collar and the inner wall of a little part of the tubular branch pipe liner which is immediately continuous from the collar, and a third portion which extends downwardly and terminates in an annular end face at a location substantially lower than the joint where the first portion and the second portion meet; also proposed is a pipe lining method, which comprises the steps of preparing a branch pipe liner with a collar; and attaching the above-mentioned protective member to the collar; and lining a branch pipe with the tubular branch pipe liner; and lining the main pipe with a conventional main pipe liner; and cutting a hole through that circular portion of the main pi

Abstract: A synthetic resin hose includes a corrugated tube wall and an electrically conductive wire disposed substantially straight along the axial direction of the tube wall and configured so that the whole length of the electrically conductive wire on the inner circumferential surface side thereof is covered with the tube wall and the outer circumferential side thereof is enclosedly covered with only top portions of the tube wall.

Abstract: The composite duct system includes a first, duct portion; a second, duct foam portion; and, a third duct portion. The first duct portion has a first surface for permitting a flowable medium to be conveyed adjacent thereto, and a second surface. The first duct portion is formed with a first fiber reinforced resin system. The second duct foam portion has a first surface bonded to the second surface of the first duct portion. The foam portion is formed of fire retarding material derived from a resin system. The third duct portion has a first surface bonded to a second surface of the foam portion. The third duct portion is formed of a second fiber reinforced resin system. Thus, a system is created having an internally sandwiched foam insulation.

Abstract: A dobby for controlling movements of a heald frame in a weaving machine is provided. A treadle is mounted on a treadle spindle and a link arrangement connects the treadle to the heald frame. Levers are mounted on the treadle and catching members are arranged on the levers and on the treadle. The catching members on the treadle interact with a corresponding catching member on one of the levers based on a control signal. Driving equipment moves the levers between a central position and an outer position. The treadle follows the movements of the lever it is connected to by the catching members and moves the heald frame via the link arrangement.

Abstract: A paper-making fabric having two or three weft layers. The two layer fabric has in its upper layer paired weft threads lying against one another and interwoven with a warp binding in mutually parallel relationship. The three layer fabric also has the paired weft threads with the warp interweaving with all of the three weft layers.The papermaking fabric to Seabrook et al U.S. Pat. No. (5,826,627) is of general interest for its disclosure to paired weft threads in its upper layer. However, unlike the structure disclosed in the instant claims 4&5 said reference weft threads aren't disclosed to be in mutual parallel relationship lying against each other.

Abstract: Tool for tying an article, in particular a cable harness, by means of a tape (7), which tool comprises a tool body (1), a carriage (12) that can move forwards and backwards thereon along a carriage guide (13, 14), and a closed pulling means (15, 16, 17, 18), which can be driven in only one direction, for the carriage drive, the forward and backward runs (15, 16) of the said pulling means (15, 16, 17, 18) being parallel and adjacent to the carriage guide (13, 14), and having a driver dog (19) for the carriage (12). According to the invention, in the region of each of the two runs (15, 16) there is provided a coupling stop, on the carriage, each of which is assigned to a run and cooperates with the driver dog. Expediently, the coupling stops (22, 34, 35), on the carriage (12) and assigned to the two runs, are connected by a guide track (20, 21, 23) accommodating the driver dog (19) on its deflection path (17, 18) from one run (15, 16) to the other.

Abstract: An engaging portion in engagement with a tying material and a hook, as a twisting mechanism, are mounted on an oscillating member provided on a spindle, and the continuous linear tying material is fed in a direction crossing a spindle axis into engagement with the engaging portion to form a starting point which is folded into a U-shape. In this state, the tying material is delivered to an encompassing guide to thereby guide the tying material around articles to be tied together, while forming two wires by folding the tying material into a substantially U-shape by a feeding force. The engaging portion and the hook are integrally rotated so that a folded extreme end portion and a rear end portion on the other side of the tying material are twisted together with each other to tie articles together. Accordingly, tying can be firmly done with one winding, while forming two wires by automatically folding the continuous linear tying material in half.

Abstract: A wire collection apparatus for use with a wire cutting machine. The apparatus comprises a tubular wire channel, a rotating tubular channel closure, and an actuator device. The wire channel contains an axial opening along the entire length of the channel. The channel contains a proximal opened end for receiving a portion of wire from the cutting machine and a distal opened end for allowing the leading terminus of the wire portion to extend therethrough, if necessary. The channel closure is positioned inside of and is substantially concentric with the wire channel. The closure contains an axial opening along the entire length of the closure and contains opened ends in alignment with the proximal and distal ends, respectively, of the wire channel. The closure is rotatable inside the channel between opened and closed positions to open and close the axial opening of the channel, respectively.

Abstract: A method and apparatus for rapidly inflating an inflatable chamber. The apparatus comprises inflation means 50 for inflating an inflatable chamber 14 defined by a support device 12 for supporting a patient P. The apparatus 10 comprises at least one first inflation means 52 for performing inflation at a high flow rate and at a low pressure so as to fill the volume of said chamber 14 substantially fully at a low pressure, and a second inflation means 54 for inflating at a low flow rate but at a high pressure to obtain said predetermined inflation pressure in said chamber 14. The invention makes it possible to inflate the chamber 14 rapidly, which is particularly important in medical applications.

Abstract: A system and method for recovering a gasoline vapor/air mixture from a vehicle tank during the dispensing of gasoline from a storage tank into the vehicle tank in which the mixture flows from the vehicle tank to the storage tank during the dispensing of the gasoline. A sensor is provided which detects a property of the mixture which corresponds to the vapor content of the mixture. The flow of the mixture is controlled in response to the vapor content of the mixture.

Abstract: An access port to a secondary circuit of a hydraulic braking system of a vehicle is provided in a hydraulic control unit. A prefilling apparatus for adding brake fluid to the secondary circuit includes a first device for evacuating and filling the secondary circuit with brake fluid. The first device includes a switchable valve connected to the access port, a pump, and a pressurized fluid reservoir. The prefilling apparatus also includes a second device for expelling trapped air from a pump of the hydraulic braking system. The second device includes a piston/cylinder arrangement connected to the access port, a source of pressurized air, and a fluid reservoir connected to the piston/cylinder arrangement. A connection tool and method for prefilling the secondary circuit utilizing this prefilling apparatus are also disclosed.

Abstract: A fueling nozzle having a rotatable locking ring adjacent its discharge end and adapted for mating with and being secured to a fuel receiving tank adapter at a common datum line has a receiving antenna associated with the nozzle and the fuel receiving tank has a transmitting antenna associated therewith. The fueling nozzle is activated by information transmitted as a continuous radio frequency signal from a continuously operating identity transmitter mounted on a vehicle desiring fueling. The identity transmitter is powered by the vehicle power source and requires no special activation by the user. The receiving antenna comprises a circumferential band completely encircling the nozzle and is insulated therefrom and secured thereabout. The receiving antenna is in such close proximity with the transmitting antenna as to interrupt transmission of the information and to cause cessation of a fueling operation upon withdrawal of the fueling nozzle from the fuel tank by more than a maximum functional distance.

Abstract: An emptying device for bulk bags having an inner and outer sack in which disturbances during emptying and contact with the bulk material are avoided. The device includes a holding device for the bulk bag, a double tube device arranged centrally beneath the holding device and having an inner tube, an outer tube arranged around the inner tube with an outlet fitted to its lower edge, and a closing ring which can be raised and lowered for closing the upper end of the annular gap formed by the two tubes. The device can additionally include at least one gripping device for securing the sack outlet of the inner sack, which gripping device can be moved up and down within the inner tube and can be pulled downwards by means of a pulling device operable from outside the double tube device.

Abstract: A beverage filling machine (10) for conserving beverage at the end of a production run of the type comprising at least one filling assembly (20) for filling a beverage container (22) and a supply tank (12) for supplying beverage (32) to the filling assembly (20). The machine (10) is characterized by the supply tank (12) including a an endless wall (42) movable between an open position disposed above a ledge (38) disposed vertically above said bottom (28) for allowing beverage (32) to level completely across the tank (12) and a closed position in sealing engagement with the ledge for dividing said tank (12) into an isolated volume (34) and a useable volume (36) for removing beverage (32) from said isolated volume (34) and allowing beverage (32) to level only in said useable volume (36). An actuator (46) moves the endless wall (42) vertically between the open and closed positions.

Abstract: A flange 52 extends upwardly about a filling passage 50 and a flexible tubular valve member 54 having a bead 56 in tension about and in sealing engagement with the flange and extending through an inlet cavity 48 to an annular ring 58 presenting an upwardly facing conical seat 60 for sealing engagement with a poppet valve 62. A helical spring 64 is disposed about the tubular valve member 54 and engages the annular ring 58 to urge the annular ring 58 into engagement with the periphery 46 of the valve seat in the filling position. A mast 66 is connected to the poppet valve 62 and extends upwardly through the chamber 34 for moving the mast 66 vertically between the chamber 34 charging position, as shown in FIG. 4, and the container 11 filling position, as shown in FIG. 5.

Abstract: A device comprising a transport table, a multiplicity of longitudinal holders that can move freely in relation to one another in a square or rectangular closed circuit past various work stations by means of transport devices, which have points of contact which fit into recesses in the bottom of the longitudinal holders and drive means. The points of contact in the transport devices, when engaged in the recesses of the longitudinal holders, move the longitudinal holders approximately one width of the longitudinal holders in the direction of movement though at least one feed cycle by means of a controller controlling the drive means. The quantity of longitudinal holders preferably does not exceed 100.

Abstract: An interchangeable additive injection apparatus provides a plurality of flow paths from one or more upstream additive tanks to one or more downstream fuel containers. A plurality of additive lines converge into an additive conduit at a manifold disposed within the apparatus. A plurality of valves associated with the additive lines are selectively opened and closed to isolate one of the flow paths. A metering device is disposed along the additive conduit for measuring the flow of additive therethrough. A reversible, multiple port housing surrounds at least the valves and manifold. In a forward orientation, a plurality of upstream ports are coupled to upstream additive tanks, and a downstream port is coupled to a fuel tank. By reversing the housing, the apparatus is placed in a reverse orientation wherein the upstream port is connected to an upstream additive tank and a plurality of downstream ports are connected to downstream fuel tanks.

Abstract: A removable fuel cap for use in a quick-fill refueling system for a motorcycle during a motorcycle race. The fuel cap comprises a movable plunger in a cylindrical windowed housing, the plunger being normally held in a closed position by a coil spring. The cylindrical housing and plunger assembly is inserted into the fuel tank opening and is held in place by a threaded retaining cap that screws onto the threaded gas cap flange. The retaining cap has a circular opening that allows access to the plunger. The fuel cap works in concert with commercially available quick-fill fuel containers. The quick-fill fuel cap is easily and quickly removed by unscrewing the retaining cap and removing the plunger assembly.

Abstract: An on-board refueling vapor recovery system for a motor vehicle comprising a fuel tank constructed to store a quantity of liquid fuel. A nozzle-receiving portion has a nozzle-receiving opening fluidly communicated with the fuel tank. Closure structure is constructed to be moved into closing engagement with the nozzle-receiving portion to close the nozzle-receiving opening. An exhaust passage communicates the fuel tank to an atmosphere outside of the motor vehicle to thereby allow fuel vapor to vent from the fuel tank to the atmosphere. The exhaust passage includes a filtration device communicated with the fuel tank to filter environmentally harmful elements from the fuel vapor as it vents from the fuel tank to the atmosphere. A closure structure sensing device is configured to transmit electric signals based on whether the closure structure is in closing engagement with the nozzle-receiving portion. A valve control unit is configured to control whether the valve is opened or closed.

Abstract: The device for the disbranching and felling of trees is provided with a chain saw (110) and possesses a seizing means (15,16,17) swivelling relative to the blade (22) of the chain saw with a plurality of grabbing arms that are swivellable about a common axis (13), in which case the device (100) with the grabbing arms (15,16,17), whose bearing brackets and the chain saw (110), with the aid of a slewing means, which swivels the device in each case through 180.degree. to the right or to the left, is connected with a lifting means, while the chain saw (110) with its driving motor, with the aid of a swivel motor to which the chain saw (110) is secured, is swivellable through the cutting area (FIG.1).

Abstract: A feeding roller for a log feeding device of a debarking machine, said feeding roller (1) comprising a substantially drum-like body (3) and a rib formation (5) consisting of ribs (9) provided in separate rib elements (6) to be fastened to the circumference of said body (3) for feeding and centring a log. To allow the feeding roller to be adapted for different tree species and different debarking conditions, separate replaceable sets of rib elements (6) are provided for the body of the feeding roller, the design (a-d, r) of the ribs being different in separate sets of rib elements for different tree species and debarking conditions.

Abstract: A numerical controlled router is enclosed by a housing mounted on a support structure wherein the housing has an opening formed in front of a router head structure. Bearings are provided outside of the housing.A rotatable shaft is rotatably supported by the bearings and two suction tables are attached to the rotary shaft and the table can be inclined by rotary cylinders.

Abstract: A money and card holder have a base with an integral retaining clip and an elastic retaining band. The base is a substantially rectangular in shape with an upper surface and an opposed substantially planar lower surface. Extending perpendicularly upwardly from the upper surface at one end of the base is a vertically-rising portion which joins the retaining clip to the base. The end of the retaining clip nearest the vertically rising portion is generally arched to bias the clip in a direction toward the base. The clip extends from the one end of the base toward the opposite end thereof, terminating with a leading edge that slopes upwardly and away from the upper surface to facilitate grasping by the user. Depending from an inner surface of the retaining clip is an extension, and formed on the upper surface of the base is a corresponding depression which is positioned in opposed registry with the extension and configured to receive the extension.

Abstract: A head cover for an iron golf club has an enlarged cover section which fits over the head of irons of different sizes. The cover section includes an internal cavity with an enlarged open mouth through which the head passes upon placing the cover section over the head and a protector section which covers, at least partially, the hosel member of the shaft when the head is received within the cavity. A clip near the open mouth expands with the shaft of the iron golf club being pushed into the cavity and retracts to hold the shaft when the head is received within the cavity. In one form of the invention, the clip is uniquely molded into the protector section of the head cover. In another form, the clip includes leg portions which can be lockably inter-connected to secure the head cover in position over the golf club.

Abstract: The tread of a rib type tire is modified to provide draft angles in lateral grooves of selected ribs to compensate the tire's residual aligning torque (RAT). This allows the vehicle to have straight ahead motion with no steering pull. The draft angles are achieved by inclining the radial centerline of the lateral grooves to be sloped forward on one side of the midcircumferential plane and sloped backward on the other side of the midcircumferential plane. The centerline draft angle results in tread blocks sloped forward and backward during forward motion of the vehicle. The sloping tread blocks produces an effective rolling radius change on selected ribs of the tread pattern. Effective rolling radius of selected ribs is a concept introduced to explain the physical relationships that exist in the contact patch of the tire with the ground surface.

Abstract: A tire slip preventing system for a vehicle includes a right tire anti-slip body, with a right tire fastening device cooperating therewith. A left tire anti-slip body is provided, with a left tire fastening device cooperating therewith. Each fastening device includes a fastening band and a fastening buckle, with the fastening buckle having hooks and engagement part, and a pivotably disposed cleat. The fastening band includes a first folded portion at a first end, with the fastening band engaging and passing over the cleat and looping in a reverse direction so that the fastening band forms an outer circumferential loop and an inner circumferential loop such that the fastening device has a non-reversible self-lock mechanism in which the cleat is pivoted to clamp the fastening band around the cleat by a tension of the inner circumferential loop. The buckle engages the respective anti-slip body with the pair of hooks.

Abstract: A valance assembly for use with a blind having a headrail includes an elongate valance member having a substantially planar rear face. A T-shaped groove is disposed in the rear face of, and oriented longitudinally with respect to the elongate valance member. A pair of valance return members are mounted at opposite ends of the elongate valance member, each valance return member having a substantially planar rear face. A corresponding T-shaped groove is disposed in the rear face of, and oriented longitudinally with respect to each respective valance return member.

Abstract: A retractable awning is provided with a multiple position pivot support adapted for mounting the awning in different installations. A flange of a mounting bracket fits in one of several slots in the support according to a wall and awning rail structure. A roller is provided with a notch into which is wedged a rope in a hem pocket of the awning. The notch retains the rope and holds the awning taut. Rafter arms a pivotably attached to slides held in slideways on external faces of support arms. A stop and latch mechanism hold the rafter in an extended position so that pivoting of the support arms does not change tension of the awning. An improved roller lock uses a pair of pawls engaging a gear. A spring biases the lock to either of two engaged positions.

Abstract: A curtain edge tensioning assembly comprised primarily of a portion of the curtain extending across the leading edge of the door. The curtain portion is releasably coupled to a guide extension extending beyond the leading edge of the door and engaging guide members to guide the door in a plane. The guide extensions also engage the guide members to restrict the guide extensions from moving toward the center of the curtain. The releasable coupling between these horizontally restricted guide extensions and the resilient member places a tension on the curtain portion. The curtain portion is thus stretched across the door, and serves as a wind retention bottom bar or edge that also substantially conforms to or deflects around an obstruction, thus preventing or minimizing damage to the door, the bottom bar and the obstruction.

Abstract: The present relates to an method to produce a molding apparatus for molding plastic parts which comprises a cavity insert and a core insert wherein each insert has an open area on the shell or back side thereof. A device for circulating fluid through each chamber cools the inserts. In one preferred embodiment, the cavity and core inserts are made using a mold having a ceramic formulation including generally uniform size aggregate materials and carbon fibers. In certain embodiments, the apparatus further includes pressure bearing devices, for absorbing molding pressure during operation of the molding apparatus.

Abstract: Mold coatings that are relatively unreactive with titanium and titanium alloys during casting are prepared from yttria slurries, which may contain other refractory materials, an acid and an inert organic solvent.

Abstract: Apparatus and processes related to thermal storage and exchange systems for use in buildings to selectively cool and/or heat a heat storage medium and cause said medium to reversibly pass between a liquid phase and a solid phase without requiring a complete discharge of a thermal reservoir between phase changes.

Abstract: A heat exchanger for a furnace flue comprises an outer flue jacket having a plurality of axially parallel exhaust gas passages therethrough. The exhaust gas passage tubes are sealed from the remainder of the interior volume of the jacket by a baffle plate at each end thereof. The outer flue jacket is preferably of the same diameter as the flue pipe in the remainder of the system, e. g., six or eight inches, in order to preclude any requirement for adapters. An inlet pipe and an outlet pipe are affixed to opposite ends of the jacket, at some angle (e. g., normal) thereto. Exhaust gases from the furnace pass through the plurality of pipes within the outer jacket, heating the pipes. Airflow within the jacket and outside the pipes, is warmed by contact with the pipes, and flows from the outlet end to be used for warming the interior of the structure in which the unit is installed.

Abstract: A new tank container cooling system for preventing tank containers, especially bulk fuel storage containers, from overheating. The inventive device includes a main conduit fluidly connected to a fluid reservoir. At least one delivery conduit is in fluid communication with the main conduit to permit passage of fluid from the fluid reservoir to the delivery conduit. The delivery conduit is generally ring shaped and has a plurality of outflow nozzles. The delivery conduit is adapted for mounting on a storage container such that fluid passing out of the output nozzles flows on the storage container.

Abstract: A capillary pumped heat transfer loop involved an evaporator, a condenser and a reservoir tank for storing a heat transfer fluid, the evaporator being provided with a porous material for generating capillary pumping pressure within the loop; the tank and the evaporator are mutually thermally insulated and interconnected via a channel that has as a first portion a capillary connection for pumping the heat transfer fluid from the tank to the porous material, and has a second portion for conveying gas bubbles and/or steam from the evaporator to the tank, the tank being arranged to be kept at a lower temperature than the evaporator.

Abstract: An apparatus and method for controlling the temperature of a heat generating device. In one embodiment, a pickup chuck having a heat pipe is provided. The heat pipe includes a first end defining an evaporator portion and a second end defining a condenser portion. A thermally conductive member at the first end of the heat pipe is adapted to engage a surface of the heat generating device. Heat is transferred away from the heat generating device by engaging the thermally conductive member with a surface of the heat generating device.

Abstract: A dry-air-surface heat exchanger is provided for use in a liquid cooling tower, and includes a plurality of preformed, shape-retaining heat transfer members of relatively thin synthetic resin sheet material. Each member presents a pair of upright, side-by-side panels that are preferably folded together about a vertical axis to present inward-facing wet-transfer surfaces adapted to transfer heat between the fluid and the member, and an outward-facing dry-transfer surface adapted to transfer heat between the member and air. The folded member is configured to present a series of tortuous liquid flow paths between the panels extending between the upper and lower edges, and the side edges are secured together in substantially fluid tight sealing engagement. A plurality of the folded members are provided in a pack, and a diffuser is positioned adjacent to the upper edges of the folded members for receiving hot liquid and directing the hot liquid between the panels of each member.

Abstract: A heat exchanger includes a tank and a base plate, and each of the tank and the base plate is formed in a box shape having a U-shaped cross-section. The tank is connected to the base plate to close an end portion of an opening side of the tank using the base plate. Protrusion portions are provided inside a folded portion of the base plate in a lateral direction to be opposite to connection portions of first and second folded portions of the tank. Further, ribs are provided in the folded portion of the base plate in the lateral direction to increase stiffness of the base plate in a longitudinal direction thereof. Thus, connection portions of the tank and the base plate can be securely brazed.

Abstract: A condenser for a motor vehicle air conditioning installation includes a fluid header in two parts, comprising an upper profiled element and a lower profiled element which are assembled together through their respective marginal regions. The marginal regions of the two elements are snap fitted together so as to hold them together before brazing.

Abstract: A substrate carrier for a ceramic substrate which supports one or more high power semiconductor devices which is fabricated from a metal base composite and which includes strategically located high conductivity copper based inserts to provide an effective heat transfer path to a heat sink for high power electronic devices. The coefficient of thermal expansion of both the metal based composite and the copper based inserts substantially match that of the substrate. The substrate carrier is formed by a pressure casting process where a porous preform of SiC, for example, is infiltrated with molten aluminum.

Abstract: A control assembly for a HVAC system serving a plurality of zones within a structure, having ducting including a damper situated in an outlet of the ducting leading to each zone, a biasing element biasing the damper in a normally open position, and a motor coupled to each damper for closing each damper. A standard manual or automatic change-over thermostat is situated in each of the zones which includes at least a heating signal output and a cooling signal output.