Abstract: A vacuum cleaner with a cyclone module assembly comprises a cyclone separation chamber for separating dust and debris from air, a dirt cup for collecting dust and debris that is separated from the air in the cyclone separation chamber, and a vortex stabilizer. The vortex stabilizer can be pivotally mounted to the cyclone separation chamber to allow access to the cyclone separation chamber when the dirt cup is removed from the cyclone module assembly.

Abstract: An autonomous coverage robot includes a chassis, a drive system configured to maneuver the robot, and a cleaning assembly. The cleaning assembly includes a cleaning assembly housing and at least one driven sweeper brush. The robot includes a controller and a removable sweeper bin configured to receive debris agitated by the driven sweeper brush. The sweeper bin includes an emitter disposed on an interior surface of the bin and a receiver disposed remotely from the emitter on the interior surface of the bin and configured to receive an emitter signal. The emitter and the receiver are disposed such that a threshold level of accumulation of debris in the sweeper bin blocks the receiver from receiving emitter emissions. The robot includes a bin controller disposed in the sweeper bin and monitoring a detector signal and initiating a bin full routine upon determining a bin debris accumulation level requiring service.

Abstract: A battery powered extractor having a switch that separately activates an agitator motor and a vacuum motor to extend the useful life of the battery.

Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.

Abstract: A bearing device comprising: an at least partially hollow structural element having a first wall region provided with an opening and a second wall region, the first and second wall regions being located opposite one another; and a punching bushing provided for bearing at least one separate component, the punching bushing comprising a punching blade being in jam contact with a punched out opening of the second wall region such that the punching bushing connects the first and second wall regions.

Abstract: A doorstop and holder is formed as a one-piece integral unit and includes a base that is adapted for mounting to a floor surface and a pair of arms extending outwardly from opposite side abutment faces of the base. The side faces are sized and positioned for abutting engagement with the lower end of the door to prevent the door from hitting an adjacent wall upon opening. Enlarged heads on the end of each arm hold the door open to prevent unwanted slamming of the door due to external forces, such as wind. The opposite arms allow the device to be used for both left swinging and right swinging doors. A further embodiment provides a mounting base adapter for mounting the doorstop and holder to a finished floor surface, such as tile or marble.

Abstract: The invention provides a handle structure for a user to carry/drag an object. Furthermore, the object has a cavity on a surface thereof for accommodating the handle structure. In addition, the handle structure includes a first base, a second base, a first supporting portion, a second supporting portion, and a handle portion. When the user carries/drags the object through the handle structure, the first supporting portion, the second supporting portion, and the handle portion are capable of rotating with respect to the object; furthermore, the handle portion is capable of rotating with respect to the first supporting portion and the second supporting portion.

Abstract: Various aspects of the invention provide handles that may be attached to wire-like members. In one exemplary embodiment, a handle body has a first end portion and a second end portion. A first slot longitudinally extends along the first end portion. A second slot longitudinally extends along the second end portion on a side portion of the handle body generally opposite that of the first slot. A third slot extends between the first and second end portions. The third slot generally transversely intersects the first and second slots. Collectively, the first, second, and third slots define a longitudinal opening configured to receive a portion of a wire-like member therein. The slots may thus allow the handle body to be attached to a wire-like member by positioning a portion of the wire-like member within the third slot and then rotating the handle body relative to the wire-like member to position the portion of the wire-like member within the longitudinal opening collectively defined by the slots.

Abstract: A sealing plug for a block-and-tackle balance comprises a sealing member having an outer periphery shaped so as to conform to an inner surface of a channel of a window jamb in which the block-and-tackle balance is accommodated. An opening is defined in the sealing member allowing a cord of the block-and-tackle balance to pass therethrough such that the cord is movable with a movement of a window panel. A connector configuration in the sealing member and allows the sealing member to be releasably secured to a bottom end of the block-and-tackle balance.

Abstract: An improved powered hinge (20) with an automatic locking feature proximate the ends of permissible relative angular displacement of its two hinge sections broadly includes: a stationary member (23) having a pivotal axis (x-x), and having a first slot (31) extending between opposite ends; a movable member (24) mounted for rotation about the pivotal axis relative to the stationary member, and having a second slot (34) extending between opposite ends; a driving member (28) adapted to be rotated about the pivotal axis relative to the stationary member from one angular position to another angular position, and having a third slot (36) extending between opposite ends; and an elongated pin (29) passing through the first, second and third slots, the pin being constrained for movement substantially parallel to the pivotal axis; the first, second and third slots being so configured and arranged that as the driving member is rotated from the one angular position to the other angular position, the pin will be moved from

Abstract: A pivotable bracket is provided such that a constant moment of friction is present at the hinge (4). A first hinge part (5) is provided, which has a cylindrical pin (6) and a contact surface (11). A second hinge part (12) is provided, which has a bearing bush (13), which can be pushed over the pin (6), with two friction surfaces (15, 16) directed at right angles to the central axis (14). The second hinge part (12) is braced against the contact surface (11) by means of a tensioning device (7, 19, 20, 21, 22) arranged on the upper side of the pin (6).

Abstract: Disclosed is a free stop hinge device of a portable terminal. The free stop hinge device of a portable terminal including a first housing and a second housing, which are rotated about a hinge axis provided by the free stop hinge device so that the first housing and the second housing are folded to or unfolded from each other, includes a hinge housing, elastic bodies disposed in the hinge housing for providing driving force in a direction perpendicular to the hinge axis, and stopping unit subjected to the driving force and performing a cam operation along with the hinge housing for stopping the second housing at a desired angle with respect to the first housing.

Abstract: A hinge structure for a mobile communication terminal includes a drive cam arranged to be linearly displaced along a hinge axis, a drive shaft arranged to face the drive cam to be rotated about the hinge axis according to linear displacement of the drive cam, a follower shaft arranged to surround the drive shaft to be rotated along with the drive shaft, a follower cam arranged to face the follower shaft to be linearly displaced along the hinge axis according to rotation of the follower shaft, and an opening/closing resilient member for pushing the follower cam against the follower shaft.

Abstract: A rotation hinge configured in a portable electrical device includes a tube sequentially stringing a base coupled to a main housing of the portable electrical device, a cam module and a fixing plate coupled to a sub-housing of the portable electrical device, and engaging with a riveting plate. The cam module has a designed curve surface and at least two recesses positioned thereon. Each section of the designed curve surface between the recesses has an arc-shape projection portion. Each recess of the designed curve surface contacts an elastic sliding portion. While the cam module rotates, the elastic sliding portion moves from the recess and moves along the designed curve surface. While the elastic sliding portion contacts the arc-shape projection portion, a compression force stored in the elastic sliding portion is maximized. Therefore, the sub-housing is advanced to rotate by the elastic sliding portion releasing the compression force.

Abstract: A hinge unit with double-side rotation function applicable on a computer device comprises a first support, a second support and a spindle wherein both of the supports has connecting portions at both ends to connect with the display unit and the base of the computer device. The hinge unit further comprises an angle limiter to limit the rotation angle.

Abstract: A hinge mounting for a motor vehicle seat with one hinge axis, one actuation part, one first hinge part having an inner toothed surface centered with respect to the hinge axis, one second hinge part with at least one stop arm comprising a toothed region cooperating with the inner toothed surface, being disposed for pivotal movement about a pivot axis disposed on the second hinge part and comprising a projection and having an actuation region that cooperates with the actuation part, and with a control part that is connected to the first hinge part and comprises a cam for the projection to fit against, the cam comprising several portions, the engagement region being located between the front holding region and a rear holding region, that, when the projection moves from the front holding region to the rear holding region, a movable baffle associated with the engagement region bridges the interposed engagement region for preventing the projection from engaging therein, the baffle being inoperable when the project

Abstract: A first and a second object (1 and 2) are joined with the aid of a joining element (8) including at least in the region of its distal and proximal ends (8.1 and 8.2) a thermoplastic material. Two blind holes (5 and 6) facing each other are provided in the two objects (1 and 2) and the joining element (8) is positioned in the blind holes such that its distal and proximal ends (8.1) are in contact with the bottom faces of the blind holes and such that there is a gap (9) between the two objects (1 and 2). This assembly is then positioned between a support (3) and a sonotrode (4). The sonotrode (4) and the support (3) are forced towards each other, while the sonotrode (4) is vibrated, thereby liquefying at least part of the material having thermoplastic properties, there, where the joining element ends (8.1 and 8.2) are pressed against the bottom faces of the holes (5 and 6) and allowing the liquefied material to infiltrate into pores of the hole surfaces or unevennesses or openings provided in the hole surfaces.

Abstract: A handle structure includes a gripping portion and a hinge portion. The gripping portion includes a handle and two levers. Each lever has a first hole, a second hole and a groove adjacent to the second hole. The handle is inserted into those second holes by pressing the handle toward the grooves. The hinge portion includes two flexible clamps. Each flexible clamp includes two protrusions against each other. The end with the first hole of the gripping portion presses the two protrusions to move apart from each other. Then, the protrusions are inserted in the first holes, and the gripping portion can swing around the hinge portion.

Abstract: An object slide attachment system designed for temporarily transporting various secondary objects that must be selectively removed or connected to a primary support object or surface. The system includes an elongated receiver mounted or attached to a primary support object or surface. The elongated receiver includes at least one elevated connecting site with a longitudinally aligned, inverted bell-shaped keyway opening formed thereon. The system also includes a complimentary-shaped post member attached to an intermediate slide connector that connects to a secondary object or that is formed directly on a secondary object. The post member is L-shaped in cross-section and includes an upper half-circular wing section integrally formed on a lower cylindrical body. During use, the post member must be properly rotated and aligned with the keyway opening in order to engage and disengage from the keyway slot.

Abstract: A spool has a pair of spaced apart plates mounted on opposing sides of a central core. A flexible fabric sheet is positioned in contact with a face of one of the plates of the spool and across a peripheral edge of the plate. A clip includes a pair of legs joined at one end and extending around the core of the spool with the fabric thereby forced into contact with the core. With the legs so inserted between the plates the fabric is captured in the spool so that the spool and clip are not able to move on the fabric or be dislodged from it. The legs terminate with toe curved in opposing lateral directions and which are able to be mutually interlocked in an overlapping attitude.

Abstract: A clasp for securing two items together includes a first section, a second section, least one pin and a force mechanism. The first section defines a cylindrical passage opening to the first face. The cylindrical passage defines at least one longitudinal J-shaped groove disposed longitudinally along the cylindrical passage. The J-shaped groove includes a main longitudinal portion, a transverse portion and a hooked portion. The second section has a top portion and a piston portion. The piston portion is complementary in dimension to the cylindrical passage. The pin extends transversely to the piston portion and is complementary to the J-shaped groove. The force mechanism applies a repulsive force between the second section and the first section so that when the pin is aligned with the hooked poration, the repulsive force drives the pin into the hooked portion, thereby inhibiting the second section from disengaging the first section.

Abstract: A clip assembly for fuel door release cable system having a first clip portion having a first end and a second end where the first and second ends each have an aperture with defined curved surfaces adapted to receive and engage the fuel door release cable system. The clip assembly further includes a second clip portion having a first end and a second end where the first and second ends each have an aperture with defined curved surfaces adapted to receive and engage the fuel door release cable system. The first and second clip portions snap-fit together around the fuel door release cable system.

Abstract: A device and method for forming an indented female connector where the dimension of the indented female connector provides for removing a male molding component without damaging a set of internal ribs formed inside the female connector. A structure comprising an indented female blow-molded connector having a first wall having a top surface and a thickness, with the first wall surrounding an opening. At least one inner wall extends substantially perpendicular to the first wall and borders the opening. At least one rib is formed in the inner wall. A bottom wall is joined to the inner wall and the distance from the rib to the top surface is greater than the thickness of the first wall. The structure further comprising a male connector having a contact edge that, when positioned inside the indented female blow-molded connector, engage the at least one rib, such that the male connector and indented female blow-molded connector are releaseably joinable with one another.

Abstract: A luggage carrying strap connector has a stud with a shank that protrudes perpendicularly from the carrying strap and ends in a head that is larger than the shank. The head and a shank protrude through an aperture in a clasp secured to the end of the strap. A bight in the end of the clasp bears the luggage weight, thus enabling the clasp to take advantage of the luggage weight to increase the strength of the engagement between the stud and the clasp. Resilient members have portions that protrude into the bight to form a gap that is smaller then the corresponding width of the shank to prevent connector disengagement during normal handling but also to avoid impeding coupling and uncoupling the stud and the clasp.

Abstract: A device for stretching webs of material transversely to a travel direction thereof, includes at least one rotary stretcher extending transversely to the travel direction of the web of material. The stretcher is composed of at least two round tubes which are aligned axially with each other and are supported by ball-and-socket joints on links. The links are mounted adjustably on a base frame.

Abstract: Provided is a method of producing an electrolytic capacitor being higher in capacitance, lower in leakage current, and difficult to deteriorate these properties even when processed in a heat-treatment process such as reflow soldering process. In the method of producing a solid electrolytic capacitor, firstly, an anode containing a valve metal is prepared. Then, the anode is anodized in an aqueous solution of 0.1% by weight of ammonium hexafluorosilicate to form a dielectric layer on the surface of the anode. An electrolyte layer of polypyrrole is formed on the dielectric layer, and further a cathode is formed on the electrolyte layer. Subsequently, an anode lead is connected to the anode and a cathode lead is connected to the cathode, and these are covered with a resin layer of an epoxy resin.

Abstract: Described herein are methods for making articles comprising a dielectric layer formed from any solution composition that can form barium titanate during firing and containing manganese in an amount between 0.002 and 0.05 atom percent of the solution composition, wherein the dielectric layer has been formed on metal foil and fired in a reducing atmosphere.

Abstract: A capacitor structure uses an aperture located within a dielectric layer in turn located over a substrate. A pair of conductor interconnection layers embedded within the dielectric layer terminates at a pair of opposite sidewalls of the aperture. A pair of capacitor plates is located upon the pair of opposite sidewalls of the aperture and contacting the pair of conductor interconnection layers, but not filling the aperture. A capacitor dielectric layer is located interposed between the pair of capacitor plates and filling the aperture. The pair of capacitor plates may be formed using an anisotropic unmasked etch followed by a masked trim etch. Alternatively, the pair of capacitor plates may be formed using an unmasked anisotropic etch only, when the pair of opposite sidewalls of the aperture is vertical and separated by a second pair of opposite sidewalls that is outward sloped.

Abstract: There is provided a device capable of smoothly, easily and automatically installing a molding on a door panel for an automobile. A molding installation jig 10 has a dynamic sensor 12 between a jig body 11 and the arm 7. The dynamic sensor 12 is designed to detect force applied from the molding installation jig 10 to the molding M. A finger 13 is supported on a side of the jig body 11 as a means for contacting and holding an end section of the molding M. Also, three suction pads 15 communicating with a vacuum device are provided on a surface of the jig body 11 at equal intervals. Further, a pair of brackets 16 having a C-shaped cross section are provided on a side surface of the jig body 11 which is perpendicular to the surface on which the suction pads 15 are provided. A first roller 17, a second roller 18, and a third roller 19 are rotatably supported in each of the brackets 16.

Abstract: A rotary table for a material processing machine such as a vertical milling machine utilizes direct drive motor(s) to precisely angularly position a work piece along one or more pivotal axes. The direct drive motor(s) are thermally insulated from the remainder of the machine to limit misaligning thermal expansion of the components of the machine. The motors may be symmetrically attached to their respective supports such that thermal expansion/contraction of the motor and surrounding components occurs symmetrically with respect to the motor to limit misalignment of the motor's rotational axis. A motor may mount to its respective support only at a first axial end thereof such that thermal expansion of a second axial end of the motor does not adversely shift the position of the first end. Axially narrow clamps selectively secure the rotors of the motors in desired positions.

Abstract: The invention includes a method of joining edges of adjacent honeycomb core panel sections. In one embodiment, the method includes forming a first edge along a first cellular core panel section. The first edge includes a first plurality of edge cell walls along the first edge. The method further includes forming a second edge along a second cellular core panel section, wherein the second edge includes a second plurality of edge cell walls along the second edge. The first edge is positioned proximate to the second edge. At least a portion of at least one of the first plurality of edge cell walls is mechanically interlocked with at least a portion of at least one of the second plurality of edge cell walls to form a joint therebetween. The invention also includes a composite structure at least partially produced by such a method.

Abstract: To achieve improved ultrasonic testing coverage of a finished machined component, the present invention applies a method for modifying a finished machine component forging for ultrasonic inspection. A forging envelope may be constructed in the shape of a right circular cylinder that surrounds a machine component forging. Then material may be added to the forging envelope in the direction of the forging equal to about 2 times a wavelength of an ultrasonic inspection device. Additional material may then be added to an inspection surface of the forging envelope equal to the dimension of a transducer dead zone, if the forging cannot be inspected ultrasonically from two opposing surfaces in the forged direction. Lastly, material may be added to the forging envelope in a direction perpendicular to the forging direction equal to a transducer footprint plus the break edge radius.

Abstract: A self-attaching fastener production system 10 in which pre-fasteners 22 are created and coupled together by wires 87, 88 before, in one non-limiting embodiment, they are respectively communicated to a tapping portion 50 in order to form self-attaching fasteners.

Abstract: An apparatus for confining in a fastening member articles resting on a surface including a housing with a cavity for holding an open fastening device and a control arm linked to first and second members, the control arm being movable between a start position and an end position to successively actuate the first and second members. The first member is adapted to contain and lift the article into position to await delivery of the open fastening device and the second member is adapted to deliver the open fastening device to the article and to close the fastening device to confine the article. In one important embodiment, the first member is also adapted to raise the apparatus away from the surface.

Abstract: A method is provided for cold forming center web or webless tapered piston pins in one forming sequence. The method eliminates secondary operations such as but not limited to machining, annealing, coating and secondary forming. The method includes the steps of cutting a metal rod into a substantially cylindrical slug piece, die extruding the slug piece to form a first cavity in the slug piece, optionally die extruding the slug piece to form a second cavity in the slug piece, piercing the slug piece to form the slug piece into a hollow cylindrical piece, die extruding the hollow cylindrical piece at either end to form a hollow cylindrical piece having a taper on an internal surface of the hollow cylindrical piece at either end.

Abstract: A method of manufacture a cup face with different thickness distribution is cutting a slice metal board with predestination shape from a metal board and stamping the slice metal board into an uneven metal board with predestination shape of rough and uneven on it then, milling one side of the uneven metal board to produce a board with different thickness. The final step is pressing the metal board with different thickness into a cup shape to form a cup face with different thickness distribution.

Abstract: The invention relates to a method for producing a measuring transducer in order to transform at least one physical variable into at least one electric variable. According to the invention, a plurality of planar, insulating and conductive layers (21-26 and 11-17) are respectively structured according to predefineable models which are adapted to each other and which are assembled in order to form a multi-layered arrangement.

Abstract: A method for manufacturing a capacitance sensor comprises the steps of (a) depositing a film to be a diaphragm forming a moving electrode, (b) heating the film to be the diaphragm to a first temperature, and (c) depositing a film to be a plate forming a fixed electrode opposing to the moving electrode. Stresses of the diaphragm and the plate of the capacitance sensor are optimized.

Abstract: A process for the manufacture of small sensors with reproducible surfaces, including electrochemical sensors. One process includes forming channels in the surface of a substrate and disposing a conductive material in the channels to form an electrode. The conductive material can also be formed on the substrate by other impact and non-impact methods. In a preferred embodiment, the method includes cutting the substrate to form a sensor having a connector portion and a transcutaneous portion, the two portions having edges that define one continuous straight line.

Abstract: A method of fabricating antenna units is described, including providing a conductive material and a dielectric material, laminating the conductive material and the dielectric material, press-cutting the conductive material to form therein circuits of a plurality of antenna units, removing the conductive material other than the circuits to form a composite structure, and cutting the composite structure to obtain the antenna units. Before each antenna unit is obtained through cutting, a chip may be bonded onto the circuit thereof and then packaged so that an RFID tag is obtained after the cutting. The method allows the manufacturer to conduct a fabricating process in high efficiency, low cost and little pollution in a continuous manner, and also allows each antenna to have a full receiving performance due to the precision of the process.

Abstract: A progressive die assembly and a method for manufacturing lamina stacks from a plurality of separate strips of stock material. The die assembly includes a plurality of feed pathways for the material strips, each feed pathway having an associated punch set. Each punch set includes one or more punches for stamping lamina features in the strip, as well as at least one blanking punch for blanking individual laminas from the strips. The die assembly additionally includes a choke assembly which is adapted to receive laminas which are blanked from each of the material strips by the blanking punches.

Abstract: An apparatus, system, and method for a quick-drain filter includes a cylindrical filter element, a cylindrical interior volume disposed axially through the element, an end plate disposed on an axial end of the element, and a housing within which the element and end plate are disposed, the housing and element having a common axis. A stand pipe is disposed axially through the housing and configured to extend into the interior volume. A service drain passage is disposed at an axial end of the housing, the drain passage being configured to be disposed axially adjacent the end plate, and a plug is disposed on the end plate, the plug being configured to plug the drain passage.

Abstract: “MANUFACTURING PROCESS AND END PRODUCT OF A WIRE-LIKE STRIP”, described as a manufacturing process and end product of a wire-like strip which, according to the characteristics thereof, provides the formation of a specific and proprietary manufacturing process for producing wire-like strips (1) specifically for the utilization in metallic wire cloths for trays, containers, partitions, fences, cable ditches and similar items and having as a basis a fully acceptable substituting alternative for the wire raw material, possessing a high initial manufacturing cost, which is the utilization of flat steel strips (2) such as carbon steel plate strips extracted from steel coils after a longitudinal cutting process (Slitter cutting) by means of a complete and sequential recoiling, straightening and shaping process thereof, so as to obtain a wire-like strip (1) straightened and welded to form a rectangular section.

Abstract: Provided are methods of manufacturing a flexible printed circuit board having a surface layer portion where a copper foil circuit is disposed and consisting single-side board, double-side board and multi-layer board. A first manufacturing method in a case when a single-sided CCL is used includes at least a step in which the surface layer portion is subjected to alkaline treatment, and a step to dispose a resist onto the alkaline-treated surface layer portion.

Abstract: A rigid flex circuit board and a method of fabricating a rigid flex circuit board. The method comprising forming a stack of at least two layers of at least one of a flexible material, prepreg material, insulative material, or conductive material over a flexible core to form a structure, wherein the structure comprises a first rigid portion, a second rigid portion, a flexible portion extending between the first and second rigid portions, and a removable rigid portion extending between the first rigid portion and the second rigid portion, processing the structure to form interconnects; and removing the removable rigid portion.

Abstract: A circuit board assembly that makes use of a low-temperature co-fired ceramic (LTCC) substrate, and a process for producing the assembly. The substrate contains at least first and second regions formed by a plurality of first ceramic layers and at least one second ceramic layer, respectively, that are superimposed and bonded to each other. Conductor lines are present on at least some of the first ceramic layers so as to be between adjacent pairs of the layers. Electrically-conductive vias electrically interconnect the conductor lines on different first ceramic layers, and a surface-mount IC device is mounted to the substrate. The first ceramic layers are formed of electrically-nonconductive materials, while the one or more second ceramic layers contain thermally-conductive particles dispersed in a matrix of electrically-nonconductive materials, such that the one or more second ceramic layers are more thermally conductive than the first ceramic layers.

Abstract: A connection member can be produced without a via-forming step. The connection member includes an insulating substrate which has an upper surface, a lower surface opposed to the upper surface, and a side surface which connects these surfaces; and at least one wiring which extends from the upper surface to the lower surface through the side surface.

Abstract: A method of repairing a damaged notch fillet radius of a turbine blade shroud includes a replacement notch fillet radius and a hardface nugget. The damaged notch fillet radius is blended out and a hardface structure positioned proximate the damaged notch fillet radius is removed. A replacement notch fillet radius is formed with weld filler and the hardface nugget is welded to at least a portion of the replacement notch fillet radius.

Abstract: A method for combining axially heated heat pipes and a heat-conducting base includes the steps of preparing a heat-conducting base and a plurality of heat pipes, providing a plurality of penetrating holes on a surface of the heat-conducting base, inserting one end of each heat pipe into the individual penetrating hole of the heat-conducting base, performing a lateral pressing to the heat-conducting base so as to bring each heat pipe into a tight and planar contact with the wall of each corresponding penetrating hole in the direction of pressing, and grinding the bottom surface of the heat-conducting base to become a flat surface to make the end of each heat pipe flush with the bottom surface of the heat-conducting base.

Abstract: A method for manufacturing an isothermal plate includes the steps of preparing a plurality of heat pipes, a first plate body and a second plate body; pressing on the second plate body to form a plurality of shielding covers recessed into the bottom surface of the second plate body and protruding from the top surface of the second plate body, the recessed portion of each shielding cover having a cambered space for horizontally accommodating the heat pipe therein; disposing each heat pipe into each cambered space to make the first plate body adhered to the bottom surface of the second plate body and the two plate bodies overlapped with each other; and applying an external force to the second plate body to bring each heat pipe into a tight and planar contact with the inner wall of its corresponding cambered space in the direction of pressing.