Abstract: When assembling longitudinal seams, the shells in the region of overlap are moved together over lining-up drill holes, the shells are fastened and subsequently the pilot holes are transferred. Thereafter, these pilot holes are deburred, which involves temporary moving apart of the shells. According to one embodiment of the present invention a rib clamping device is stated that can be used for the longitudinal seam-structure assembly of an aircraft fuselage and that comprises attachment means and fastening means for non-positive and frictionally-engaged fastening of the shells. There is thus no longer any need to temporarily move the components apart.

Abstract: The invention provides a method which allows reliable production of steel products from a light steel. The steel products according to the invention exhibit isotropic deformation behaviour and are ductile at low temperature with high yield strengths. This is achieved according to the invention by a method for producing a steel product, in particular a steel sheet or steel strip, wherein a steel strip or sheet is produced from steel which contains (in % by weight): C: 1.00%, Mn: 7.00 to 30.00%, Al: 1.00 to 10.00%, Si: 2.50 to 8.00%, Al +Si: 3.50 to 12.00%, B: 0.01%, Ni: 8.00%, Cu: 3.00%, N: 0.60%, Nb: 0.30%, Ti: 0.30%, V: 0.30%, P: 0.01% and iron and unavoidable impurities as the remainder, from which strip or sheet the fmished steel product is subsequently produced by cold forming that takes place at a degree of cold forming of 2 to 25%.

Abstract: A work treatment installation comprises several side-by-side machine tools and at least one work supply and discharge device. It further comprises a work transport device which bridges both of them and comprises a displaceable and vertically sliding lifting skid with a work grab. The work transport device comprises lowering stops for the lifting skid. They are fixed between charge and discharge positions of the machine tools and designed for engagement and disengagement in the charge and discharge positions.

Abstract: A technology capable of preventing the degradation of operation reliability of CMUT when a lower electrode for CMUTs arranged in an array is divided in order to control the CMUTs independently is provided. Also, a technology capable of preventing the formation of a convex or concave distortion in an insulating film (membrane) of the cavity is provided. For its achievement, a size of a lower electrode divided for independently controlling each CMUT is set to be larger than that of a cavity. Also, a size of an upper electrode of the CMUT is set to be larger than that of the cavity.

Abstract: The method of making a liquid composite and fabrication used in catheter probe endoscopic ultrasound, wherein the composite is made by the mixture of edible powder and water. The fabrication method is to mix the edible powder and water and then stir and heat it to the desired temperature; after cooling, the thick transparent liquid can be used for catheter probe endoscopic ultrasound. Because of the higher viscosity, its speed of flow is slow when it is guided into the human body. Therefore, the dosage of the supply can be greatly reduced, which diminishes the patient's discomfort and side effects. In addition, due to its better suspension, it provides the catheter probe endoscopic ultrasound a more stable medium and better imaging. Overall, it is more applicable and practical than the current mediums being used in catheter probe endoscopic ultrasound.

Abstract: A method for manufacturing a film bulk acoustic resonator includes forming a closed room in a supporting substrate; forming a bottom electrode above the closed room, the bottom electrode provided on a surface of the supporting substrate; forming a piezoelectric film on a surface of the bottom electrode; forming a top electrode facing the bottom electrode to sandwich the piezoelectric film; forming an opening connected to the closed room from the surface of the supporting substrate; and forming a cavity by removing a portion of the supporting substrate under the bottom electrode through the opening and the closed room.

Abstract: A process for the production of a lithium polymer cell is involves extruding a material mixture for an anode and a mixture for a cathode to form an anode and cathode masses. At least one of the masses is extruded with a mixture of cyclohexanone and methyl ethyl ketone. The anode and cathode masses are laminated onto conductors and joined with an intervening separator to form a lithium polymer cell.

Abstract: The present invention provides a process and an apparatus for the preparation of a motor coil by which a longitudinally wound motor coil, so called, can be easily prepared. First, a molded product 10 comprising a column part 11, and a fin part 12 projected in the form of flat plate from an outer peripheral surface 11A, 11B, 11C, 11D of the column part to an outer side in a radial direction of the column part and helically continuing in an axis direction of the column part at predetermined intervals along the outer peripheral surface of column part is prepared. The column part 11 of the first molded product is punched out in an axis direction of the column part with retaining the fin part 12 to remove the column part, and the fin part 12 having helical shape left after the removal is coated with an insulating film.

Abstract: In component mounting for executing component feed operation and component holding and pickup operation, a recipe for the component holding and pickup operation that is an operation program for executing the component holding and pickup operation is received in a head unit, and the component holding and pickup operation is executed on the basis of the recipe. In addition, a timing signal based on the execution is transmitted to a component feed unit, the recipe for the component feed operation for executing the component feed operation is received in the component feed unit, and the component feed operation is completed on the basis of the recipe and the timing signal transmitted from the head unit.

Abstract: A connector compression tool is provided wherein the tool includes a handle, pivotally moveable from a second position to a first position, a body, configured to compress together when the handle is moved to the first position, and a jaw, operably associated with the body, wherein the jaw includes at least two centering openings having different widths to accommodate differently configured connectors having different diameters and different lengths.

Abstract: A tool adaptor for securing a compression type end connector to the prepared end of a coaxial cable. The adaptor includes two slide members that are mated in an interlocking sliding relationship with the end connector placed in engagement with contoured seats located in each of the slide members. Opposed drive surfaces are located in the slide members that can be engaged between the jaws of a crimping tool to apply an axial force to the end connector so as to radially compress a deformable section of the connector into tight frictional engagement with the coaxial cable.

Abstract: The invention is a continuous finishing apparatus for a slide fastener having a slider introduction portion for successively introducing a slider by intermittently running a slide fastener chain, wherein, a slider introduction member thrusts into the space portion when the slider held by a slider holding member is brought into a space portion and set therein, moves downstream of the slide fastener chain within the space portion, holds an engaging element disposed at a downstream end portion of the space portion, and then, continues to move to the downstream for carrying the slide fastener chain, and wherein the slider is introduced and set along the same chain upon this carriage. Because the slider introduction member carries the slide fastener by holding the engaging elements on an edge of the fastener tape, which is least elongated, no disagreement occurs in position of corresponding right and left engaging elements.

Abstract: A magnetic rivet retention system for a rivet gun, wherein a magnet is provided in a frame that is engageable with a powered handle. The magnet attracts a rivet and aligns the rivet relative to a punch and die of the rivet gun. The magnet is disposed in an internal chamber in a front bushing. The front bushing is threadably engaged with a back bushing, and both are disposed in a chamber which is provided in a C-frame. A compression spring is also disposed in the C-frame, thereby providing that the rivet gun is spring return.

Abstract: The magnetic tape cassette has a base with an opening for forming a transparent window and a transparent resin-made window member to be installed in said opening. The window member is provided with an engaging unit which is to be fitted into the base at an angle and the base is provided with an engaging portion that is formed at an angle in correspondence to the engaging unit and the window member is installed in the opening by being fitted in at an angle.

Abstract: The present disclosure relates to a telecommunications cable having a jacket including a feature for allowing post-extrusion insertion of an optical fiber or other signal-transmitting member. The present disclosure also relates to a method for making a telecommunications cable having a jacket including a feature for allowing post-extrusion insertion of an optical fiber or other signal-transmitting member.

Abstract: A means is described of connecting multiple flexible printed circuit (FPC) tags. The means is suitable where electrical circuitry has been printed or otherwise applied to one side of flexible substrates, and where the circuitry of two such substrates is required to be brought into electrical continuity. In this method, a sewing, stitching or embroidery machine is used to hold juxtaposed conductive surfaces in electrical continuity by tension. In a variation of the means, conductive thread, wire or other material is used to create an electrically-conducting via between the relevant conductive surfaces of two or more such FPC tags.

Abstract: A sintering apparatus for heat pipe includes a pipe body with a shrunk end and a second positioning point, a shaft with a tapered head and a filling tool with a first positioning point. The method for manufacturing the sintering apparatus includes the steps of inserting a shaft inside the pipe body such that a tapered head is assembled to the shrunk end to achieve a second positioning point, wherein another end of the shaft extending to the filling tool forms a first positioning point corresponding to the clamping section. The filling tool fills a wick structure into a uniform gap defined by the shaft and the pipe body and clamped by the first positioning point and the second positioning point. The wick structure is sintered and cooled to complete a heat pipe having wick structure of uniform thickness.

Abstract: Method for adjusting the throttling action of a valve comprising a valve body with at least one through-channel for a working medium, where the working medium is throttled by at least one valve disk which covers the throttle channel. By making use of the effect of the heat of a laser beam to change the elastic pretension of the disk, deviations from a predetermined throttling action are minimized. The laser beam is used to cause partial local melting in the minimum of one valve disk, the heat thus introduced having the effect of working at least one defined bending axis into the disk.

Abstract: A method of forming a metal matrix component and product that comprises forming scrap sheet metal material, shredding the scrap sheet metal material to a predetermined size range, filling the shredded scrap sheet metal material into a compacting die, adding an adhesive material to the shredded scrap sheet metal material in the compacting die, compressing the shredded scrap sheet metal material and curing the adhesive to form a metal matrix component. The product comprises an inertia ring that may be used in a crankshaft damper.

Abstract: A roller bearing assembly is assembled using a first cage 25 featuring high general-purpose versatility and supporting individual first-row tapered rollers 18a by means of the first cage 25 in a manner that in a state where the first cage 25 is horizontally supported and has its greater diameter side positioned upwardly, all the first-row tapered rollers 18a of a sub-assemble member 20 have their centroids located radially outwardly with respect to the radially innermost points on which the first-row tapered rollers 18a are supported by the first cage 25.

Abstract: A shaver has a shaving head holder (10) mounted to the housing (2), and movable between an operating position and a cleaning position. A hair chamber (13) is located between the shaving head holder (10) and housing portions which include a bottom (16) and side walls (17). The hair chamber (13) communicates with the environment via at least one flushing port (18) in at least one of said housing portions (16, 17) bounding the hair chamber (13). The flushing port (or ports) (18) has (have) an exit (19) at the outside of the housing (2).

Abstract: A rotary type electric shaver with an outer cutter frame 20 provided on a shaver main body 10, an outer cutter 14 installed in this outer cutter frame 20 and having its shaving surface on the upper surface of a ring-shaped thin layer portion 28, and an inner cutter 16 having a cutter body 38 that rotates and makes sliding contact from below with the lower surface of the outer cutter 14, wherein a thin layer portion 28 is formed in a substantially arc shape that is convex upward in a radial and vertical cross section that includes a center axis line A which is the rotational center of the inner cutter 16, and the thickness of the thin layer portion near the apex of the upward convex is smallest at the apex and gradually becomes thicker as distance increases away from the apex.

Abstract: A rotary shaver including an outer cutter frame (18) installed on the shaver main body (10), an outer cutter (14) installed in this outer cutter frame (18) and is formed with hair introduction openings (30a, 30b) in ring-shaped thin layer portions (28a, 28b) whose upper surfaces make the shaving surfaces, and an inner cutter (16) that has a cutter body (38) that rotates while making sliding contact from below with the lower surface of the thin layer portions to cut hair that entered the hair introduction opening; wherein the hair introduction openings have a slit shape of substantially constant width and extend in the thin layer portions (28a, 28b) in substantially the radial direction, and they are also curved in a substantially wave shape in their lengthwise direction.

Abstract: A rotary shaver including an outer cutter frame (18) provided on a shaver main body (10), an outer cutter (14) that is installed in this outer cutter frame (18) and has ring-shaped thin layer portions (28a, 28b) whose upper surfaces are the shaving surfaces, and an inner cutter (16) that has cutter bodies (38) that rotates and make sliding contact with the lower surface of the thin layer portions of the outer cutter to cut hair that entered hair introduction openings (30a, 30b) formed in the thin layer portions; wherein the hair introduction openings have a slit shape extending in substantially the radial direction of the thin layer portions, and the cutting edge angle (p, q) at the lower end(s) of the side wall surface(s) of the hair introduction openings (30a, 30b) defined by the ribs (32a, 32b) is an acute angle.

Abstract: The invention features a shaving cartridge for connection to a handle. The shaving cartridge includes a plastic housing having a front portion, a rear portion having a rear surface, two side surfaces extending from the front portion to the rear portion, pivoting structure defining a pivot axis for pivoting of the housing with respect to the handle, and a housing axis extending from the rear portion to the front portion perpendicular to the pivot axis. One or more shaving blades are positioned between the front portion and the rear portion. The one or more blades extend along respective one or more parallel blade axes that are parallel to the pivot axis and located behind the pivot axis.

Abstract: A hand-held coaxial cable stripper made up of first and second jaws pivotally connected to a body portion including a channel for insertion of a cable end, the channel containing blade members and a blade adjustment member for precise and accurate adjustment of the cutting depth of the blade.

Abstract: A trimmer head with a cutting means rotatably attached to a protuberance is disclosed. In one embodiment, the head serves as a replacement head manufactured to substitute for an OEM trimmer head. In this embodiment, the protuberance houses a cutting means positioned such that said cutting means exits the trimmer head at approximately the same vertical position as the line or blade from the OEM head.

Abstract: A tool for sectioning an edge of a wiper blade having a body with a substantially elongated and rectangular shape with first and second ends and constructed from a hardened plastic material. An aperture being defined in the body in a lengthwise extending direction between the first and second ends, the aperture substantially matching a cross-sectional profile of the wiper blade. A depth adjustable blade contained within the body and in communication with the aperture, the blade further including a substantially “V” shaped notch defining first and second interconnected cutting edges centered relative to the aperture. The cutting edges intercept the edge of the wiper blade as it is drawn along the aperture and in order to section a portion therefrom.

Abstract: An elongate blade grip is attached to the top edge of a knife blade to achieve greater cutting control and efficiency. The blade grip includes a top member and two opposing side members connected to the top member. The blade grip closely conforms to the flat shape of the knife blade so as to allow knife users to choke up on the knife, or hold the knife partly by the blade. An elongate and rounded top surface on the top member relieves pressure on the proximal phalange of the index finger, thereby reducing blisters and calluses associated with choking up. The side members of the blade grip include slip resistant surfaces where the thumb and medial phalange of the index finger are normally located when choking up on the knife.

Abstract: A saw includes a housing, a motor, a saw blade, a base plate, and an alignment guide. The motor is at least partially provided in the housing. The saw blade is driven by the motor and defines a cutting plane. The base plate supports the housing. The alignment guide is attached to the base plate and has a laser, a scale, and an indicator. The laser is selectively rotatable and projects a laser beam in a laser plane about a first axis. The scale is positioned about the first axis and has a plurality of first graduations. The indicator is aligned with the scale and indicates a horizontal offset distance between the cutting plane and the laser plane along the base plate.

Abstract: An automatic saw includes a serrated blade, a blade holder connected to the serrated blade at one end thereof, a plunger arranged at the other end of the blade holder and arranged inside a housing as slidable in the housing, an engagement piece secured to the plunger inside the housing having an engagement elongated hole formed at a side surface of the engagement piece, the engagement hole extending in a direction perpendicular to an extending direction of an axis of the plunger, an air motor rotatable of a crank shaft inserted in and engaged with the engagement hole via a side opening formed in the housing, and a motor housing covering the motor rotatably coupled to the side opening. The rotational force of the crank shaft according to operation of the air motor is converted to back and forth reciprocal movement of the serrated blade via the engagement hole and the engagement piece.

Abstract: A device for adjusting a foot plate of a saw. The device includes a locking member with a fastener connected therewith for fastening the foot plate to a housing of a saw. A rotatable sleeve is connected to the locking member for rotating the locking member. A rotatable actuator assembly is pivotally connected to the rotatable sleeve for turning the rotatable sleeve. The rotatable sleeve and locking member can be engaged or disengaged with each other by effect of a biasing member or spring therebetween. Therefore, when the rotatable sleeve and locking member are engaged with each other, the rotatable actuator assembly can be turned to rotate the rotatable sleeve, and the bolt which is fixed to the locking member is rotated consequently to adjust the tightness or looseness between the foot plate and housing of a saw.

Abstract: The can opener is a side-cutting opener with handle levers which pivot vertically towards and away from one another. A rotary cutter wheel is normally retracted to a position inside one of said handle levers, but is thrust outwardly to cut into the rim of the can when the handle levers are squeezed together. A drive wheel engages the rim and is rotated by means of a rotary drive handle to cut the top off the can. Spreading the handle levers apart causes the cutting wheel to retract at the end of the cutting operation to release the cut-off top of the can.

Abstract: A programmable marking scribe having a stylus movable in three mutually orthogonal axes to displace material from an object being marked and create a two-dimensional matrix of recessed areas formed of grooves and surrounded by ridges, the grooves and ridges forming a reflectively multifaceted data cell having a collective reflectance that is in contrast with unmarked surface reflectance to enable a reader to clearly distinguish the former from the latter even in the presence of extraneous interfering marks and deposits.

Abstract: Provided, among other things, is a device for aligning a motor vehicle in a parking space comprising a light projector for mounting above an the parking space comprising one or more light sources for projecting one or more lines extending from the parking space to outside the parking space, with the lines parallel to the intended vehicle alignment for approaching the parking space.

Abstract: A method and apparatus are presented for a laser tool used for direct indication of a level surface. This embodiment may also be used to transfer a level elevation from one level surface to a neighboring surface. The device may also be used to indicate the degree of flatness of a surface by direct observation. An alternative embodiment can provide a direct indication of plumb surfaces.

Abstract: A method and apparatus for determining the position, relative to the grab (1, 2) transporting them, of the end heads used in packing paper, cellulose, and board rolls, when the end head is attached to the grab (1, 2). When measuring, a detector (7) is transported along such a circular curve, which is assumed to be intersected by the circular curve defined by the edge of the end head. the angle position of the detector (7) on the circular curve of its path is measured and the intersection points (x1, z1; x2, z2) of the curve travelled by the detector (7) and the edge of the head are detected. The position of the centre point (x0, z0) of the end head is calculated on the basis of (a) the radius of the circle travelled by the detector and the position of the centre point (xm, zm) of the circle, (b) the position (xt, zt) of the grab's tool point, (c) the assumed radius of the end head, and (d) the positions (x1, z1; x2, z2), of the detected intersection points.

Abstract: A device for monitoring the tolerances of a workpiece has a measuring probe with two separate inductive coils arranged in a housing. A non-magnetizable sensing stylus designed to rest on a workpiece surface to be measured is arranged in the coils and has a deflector body that is a sleeve. The stylus and the deflector body are loaded into a measuring position. The housing has two essentially identical housing halves each having a plane surface with which the housing halves are connected to one another. The housing halves each have a recess and one of the inductive coils is inserted into one of the recesses, respectively. The opposed ends of the housing halves are provided with aligned bores that open into the recesses, respectively. The stylus is arranged coaxially in the inductive coils and has opposed stylus ends projecting through the bores outwardly from the two housing halves.

Abstract: The invention provides a writing and drawing stencil which comprises a support disc carrying characters (4), numbers or symbols that are concentrically arranged and configured as open-work The stencil is provided with means for retaining (7; 12) or guiding a compact disc (6) that allow the compact disc (6) to be rotated support disc relative to the compact disc (6).

Abstract: A drying apparatus for drying articles such as clothing is provided. The drying apparatus includes a chamber for containing articles to be dried and a system for supplying heated dry air at a first temperature to the chamber. The air supplying system comprises an air flow pathway having an evaporator for removing moisture from air exiting the chamber and for decreasing the temperature of the air to below dew point temperature. The air supply system further has a condenser for increasing the temperature of the air exiting the evaporator to the first temperature. The drying apparatus further has a heat pump system having a refrigerant loop which includes a compressor, the condenser, a TEV valve, and the evaporator.

Abstract: A dryer bar apparatus of a dryer for drying a web in a papermaking machine includes a number of turbulence bars circumferentially spaced equidistantly around the inner surface of the dryer shell for generating turbulence within a layer of condensate. The arrangement is such that uniformity of the transfer of thermal energy in the cross machine direction is maximized while the transfer of thermal energy through the dryer shell from the inner to the outer surface is minimized. Also, the number of turbulence bars is determined by the equation: N=int{2?Ri/[4?(Ri/d)½+W]} in which: N=the number of turbulence bars in the dryer shell; int=an integer number of a value in {} brackets; ?=3.1415; Ri=the inside radius of the inner surface of the dryer shell in inches; d=an average depth of the layer in inches; W=a width of each of the turbulence bars in inches.

Abstract: A clothes treating apparatus comprising a cabinet (1) having external walls (2) and internal walls (3), said internal walls (3) defining an interior region (4) for receiving clothes, said apparatus further comprising a door (6) connected to said cabinet (1), at least a supporting device (5) for supporting clothes within said interior region, a ventilator (7), water supply means (8) and an ultrasonic nebulizer (9) operatively associated to said water supply means (8). Said apparatus is characterized in that the air within the interior region (4) is recirculated by said ventilator (7) through an air duct (10) located between said internal walls (3) and said external walls (2) forming a closed loop with said internal region.

Abstract: An embodiment of the portable blower includes a housing, a blower wheel, a motor, and a rechargeable battery. Some embodiments of the portable blower include a pivoting blower head, a speed control, and a light source. A method of assembling a portable blower includes attaching a blower wheel to a motor, fastening the motor and blower wheel assembly to a housing, and attaching a rechargeable battery to the housing.

Abstract: An apparatus and method for treating a moving substrate of indefinite length. The apparatus has a control surface positioned in close proximity to a surface of the substrate to define a control gap between the substrate and the control surface. A first chamber is positioned near the control surface, with the first chamber having a gas introduction device. A second chamber is positioned near the control surface, the second chamber having a gas withdrawal device. The control surface and the chambers together define a region wherein the adjacent gas phases possess an amount of mass. Upon inducement of at least a portion of the mass within the region, the mass flow is controlled to significantly reduce dilution of the gas phase component in the adjacent gas phase. This is accomplished through the introduction of a controlled gas stream thereby reducing the flow of an uncontrolled ambient gas stream due to pressure gradients in the system.

Abstract: A drying apparatus has a heat pump comprising a compressor (31), a radiator (32), a throttle apparatus (33) and an evaporator (34), and also includes a structure in which drying air heated by heat of the radiator (32) is introduced to a subject (37) to be dried is dehumidified by the evaporator (34). The drying apparatus also includes a bypass circuit (39) through which a portion of dying air heated by the radiator (32) flows to an inlet of the evaporator (34) without coming into contact with the subject, a super heat detecting device (43, 44) for detecting super heat of the heat pump apparatus, and a throttle apparatus control device for controlling flow path resistance in the bypass circuit (39) using a value detected by the super heat detecting device (43, 44).

Abstract: Footwear systems include: (a) a holding device having an opening; (b) an article of footwear having a sole with a projection that extends through the opening; and (c) another article of footwear having a sole with a cavity into which the projection extends (thereby sandwiching the holding device between the soles). In other systems, the sole of one article of footwear includes two raised areas that fit through two openings provided in a holding device. The two raised areas fit into recessed areas provided adjacent a raised area of another footwear sole (thereby sandwiching the holding device between the soles). The projection(s) and/or raised area(s) on one sole may be sized and constructed so as to tightly fit (e.g., a friction fit) into corresponding cavity(ies) and/or recessed area(s) provided on the other sole, to thereby detachably hold the soles together and/or detachably engage with the holding device.

Abstract: An insert for footwear which has improved durability and pliability and satisfies a thumb test of pliability when exposed along the sides of the footwear. The insert comprises a compressible core at least partially surrounded by a flexible casing. The flexible casing has an open window of a size which is sufficient for insertion of the compressible core into the flexible casing but leaving sufficient material to hold the compressible core. The peripheral portion of the flexible casing is spaced from at least a portion of the peripheral surface of the compressible core, while not interfering with the foot applying pressure to the compressible core. A method for making the insert is also provided.

Abstract: The present invention provides a footwear sole comprising a first layer adjacent to the inner sole formed of rubber; a second layer adjacent to the first layer formed of fabric, and a third layer adjacent to the second layer for engaging a walking surface formed of a non-slip material. The first layer may be formed of recycled rubber. The second fabric layer may be formed of nylon, polyester, acrylic, polyolefin, spandex, or any other synthetic material. The non-slip material of the third layer may be in the form of beads or dots. This non-slip material may be formed of dycem, plastics, rubber or other non-slip materials.

Abstract: An article of footwear provided to receive the user's foot and including a lacing device, the lacing device including a lace, at least two guides provided to enable a lace to slide relative thereto within a lacing zone, and a blocker capable of blocking relative movement of the lace, the blocker including a control member to unblock the lace. The article of footwear has an open position, facilitating insertion of the user's foot, and a tightened position firmly retaining the foot within the article of footwear. The switch from the open position to the tightened position is carried out via a traction on the lace, and the switch from the tightened position to the open position is carried out via a traction on the control member of the blocker.

Abstract: A skate boot for enclosing a human foot when in use, the foot having a heel, an ankle with a medial malleolus and a lateral malleolus, an Achilles tendon having an upper part and a lower part that projects outwardly with relation to the upper part, the lower part merging with the heel, a plantar surface, medial and lateral sides and toes. The skate boot comprises an outer shell and a tendon guard affixed to the outer shell. The tendon guard is more flexible than the outer shell such that it allows backwards flexion of the ankle when the foot moves towards full extension.