Abstract: A modular deployable shelter for camps, comprising a body made of a flexible material, which can be deployed from a transport position to a position of use, generating an inner trapezoidal living space with a roof at an angle, characterised in that, in the position of use, the shelter comprises a rigid roof plate which closes the upper part of the body when in the deployed position, forming a ventilated space; wherein the floor of the body is closed from the bottom by a rigid floor plate; and wherein the right and left sides of the flexible body, in the position of use, have a longitudinally reinforced bellows structure, also being closed at the front and rear part thereof by rigid panels, the front panel having an opening which defines the entrance of the living space in the deployed position thereof; and wherein the sides of the body, in the deployed position thereof, have panelled reinforcements containing a reinforcement material.

Abstract: A scalable, light-weight, portable, self-supporting and adjustable, multi-purpose, cubular utility barrier enclosure (C.U.B.E.), made of a membrane that defines a space and resiliently flexible segmented poles, that maintain a stable shape as the membrane is pushed out by the poles connected together in loops contained within the space, that are caused to bend in a flexed condition and are biased in place by the membrane when the poles are positioned in a freestanding manner, with adjustable section lengths that slip fit connect together to form various flexed loop configurations in proportion with the membrane to be biased in place. The cubular utility barrier enclosure (C.U.B.E.

Abstract: A shelter structure arranged to be deployed from a stowed configuration above a vehicle to a deployed configuration, having a number of elongate stays for supporting a flexible awning, the stays being movable to fan out from a stowed configuration to a fanned out configuration when deployed. The structure is provided with a mounting permitting the structure to move with respect to the mounting when deployed to selectively cover alternative sheltered zones in a deployed configuration.

Abstract: Methods and apparatus are disclosed for an improved barriers and fence systems, including a supplemental panel for fences or gates or the like, alone and or in combination with such pre-existing fences/gates or similar elements. The supplemental panel can be fabricated using relatively cost-effective materials and processes, and effectively reduces the space or gaps between generally vertical pickets and/or horizontal elements on an existing fence/gate/etc., and is readily mounted and racked into generally parallel alignment with those existing generally vertical pickets, and the mounting can be independent of the racking function/structure (such as by bending the added vertical picket elements at a selected/provided location on each added picket). The added vertical elements can be low-visibility and selectively spaced laterally to fit aesthetically between the existing pickets.

Abstract: An apparatus for reminding drivers of a child in a vehicle configured to be hung on the interior of a driver's door so that it interferes with operation of the door handle. Thus, when the driver opens the door, the driver is reminded of a child in the vehicle.

Abstract: The invention relates to a guard for locking elements that extend inwardly, or protrude, from an inner surface of a tailgate of a passenger motor vehicle. The guard is disposed in the region of the locking elements. The guard may be made of an elastic material. The guard may fold in and fold out relative to the inner surface of the tailgate. The guard may be configured in the shape of a gripping handle.

Abstract: A lock includes a housing assembly, an actuatable lock assembly and a latching assembly. The actuatable lock assembly is positionable in at least a closed orientation and an open orientation. The latching assembly further includes a latch, a cam and a motor. The latch, having a cam profile, is movable between a locked position and an unlocked position. In the locked position, the actuatable lock assembly is maintained in the closed orientation. In the unlocked position, the actuatable lock assembly is positionable into an open orientation. The cam is rotatably mounted and has a first follower configured to intermittently coact with the cam profile of the latch, to, in turn, move the latch between the locked position and the unlocked position. The motor is coupled to the cam. Actuation of the motor causes rotation of the cam, resulting in movement of the latch between the locked and unlocked positions.

Abstract: A dual cam lock apparatus for a locking blade. The apparatus comprises a rotatable lock comprising a cam shaft, a first cam and a second cam. The first cam comprises a first cam body rotationally coupled with the cam shaft, at least one protrusion upstanding from a surface of the first cam body, and a first arm extending from the first cam body configured to contact the locking blade to retain the locking blade in the locking position. The first cam is rotatable by the cam shaft to move the first arm in and out of contact with the locking blade. The second cam comprises a second cam body with at least one slot therethrough which receives the at least one protrusion, and a second arm extending from the second cam body and coupled with the locking blade.

Abstract: An electro-mechanical locking device, particularly for cabinetry, with some embodiments used in connection with a drawer slide.

Abstract: The invention relates to a lock in a motor vehicle, in particular a side-door lock, comprising a Bowden cable, a receiving element in the lock for the Bowden cable, a counter-bearing, a lock case and a lock housing, the counter-bearing being designed as a separate receiving element for the Bowden cable.

Abstract: The invention relates to a motor vehicle lock having an actuating element, in particular a control shaft, which can be adjusted about an actuating element axis, and a drive for adjusting the actuating element, the drive having a rotor which is assigned to the actuating element and which has a permanent magnet arrangement, and a stator with a coil arrangement comprising at least two coils. It is proposed that the stator has at least two poles, via which a magnetic field which is generated by the coil arrangement is guided, and wherein, possibly in a manner which is dependent on the position of the rotor, at least one pole of the stator reaches up to an end side of the rotor apart from an axial gap in relation to the actuating element axis.

Abstract: A handle assembly for a vehicle door includes: a body defining an opening dimensioned to at least partially receive therein a hand of a user, the opening communicating with a chamber defined in the body anterior of the opening; at least one pivot arm mounted on the body for pivotal movement relative thereto; a closure for the opening, the closure connected to the at least one pivot arm for pivotal movement relative thereto, and the closure selectively moveable relative to the body between a first position, in which the closure occupies the opening, and a second position, in which the closure is moved into the chamber so that the hand of the user may be at least partially received through the opening; and a motor for effecting selective movement of the closure between the first and second positions thereof.

Abstract: The invention relates to a door lock or flap lock comprising a locking mechanism that has a rotary latch and a pawl for locking the rotary latch. Said type of lock is also described in DE 103 20 457 A1. The invention also relates to a method for producing a plurality of said locks. The invention also relates to a lock with a position securing system with low technical complexity. The aim of the invention is to provide a lock with a locking mechanism comprising a rotary latch and a pawl for locking the rotary latch. The lock comprises a position securing system for a locking or anti-theft device. A spring is used for securing the position. Said spring is embodied as a dual-acting clamping spring.

Abstract: Latch mechanisms adapted to prevent unauthorized displacement of a latch bolt from an extended, locked position to a retracted, unlocked position. The latch mechanisms prevent the failure of a latch bolt of one latch mechanism to return to an extended lock position from interfering with the ability of a latch bolt of an inter-related latch mechanism from being able to return to an extended, locked position. Further embodiments provide a mounting bracket mounted to a door to allow the associated latch mechanism to be indirectly secured to the door. Additionally, the mounting bracket may have a plurality of mounting orifices that allow the mounting bracket to be used with a wide range of latch mechanisms, as well as provide adjustable attachment of the latch mechanism to the mounting bracket.

Abstract: A dead bolt is provided in a lock shell to be drive-jointed with a drive mechanism. Two hooks are symmetrically set along an access direction of dead bolt in the shell. The hooks are hinged with an elastomer therebetween. A draw ring is set to keep mute upon popup under the action of anti-collision mute strip. A strike plate and strike box assembly have a panel with an elongate groove on at least one end thereof. The elongate groove has a set of slots on at least one side thereof. The strike plate is provided with a fastening hole on each end. The fastening hole has a sidewall extending above the plane of the strike plate with a clip bar at a position able to fit into a corresponding slot in the elongate groove. The clip bar joints the corresponding slot to facilitate alignment adjustability.

Abstract: Sealed connection device between a first and a second closed space, closed off by doors, first part (A) for securing the first and second flanges to one another, second part for securing the second door and the first door in a sealed manner, part for detaching the second door from the second flange, third part for releasing the first door in relation to the first flange (18), fourth part for opening a passage between the first and the second closed space, and part for controlling the first, second, third and fourth parts allowing for the sealed connection without rotation of one of the closed spaces, the device also comprising a device for maintaining by snap fitting (34) for the second closed space in relation to the first closed space prior to the securing by the first part for securing.

Abstract: An interlock lever for actuating a latch member of a machine is disclosed. The latch member is configured to lock a hood of the machine in a closed position thereof. The machine has an input member being movable in a first direction to move the hood towards an opened position and a second direction to move the hood towards the closed position. The interlock lever includes a body coupled to a frame of the machine and a slot defined in the body. The body is movable between a first position and a second position. In the second position of the body, the slot allows movement of the input member in the first direction and actuates the latch member to allow the hood to move from the closed position. In the first position of the body, the slot prevents movement of the input member in the first direction.

Abstract: A door assembly with improved sealing between the door and door frame. The door assembly may include a door frame having a first side section and a sill section, a door including a first edge surface and a second edge surface and a hinge having a first portion connected to the first side section and a second portion connected to the first edge surface to pivotably connect the door to the door frame such that the door is pivotable between an open position and a closed position, wherein the hinge moves the second edge surface vertically downward toward the sill section only during the last 50 degrees of pivotal movement of the door from the open position to the closed position.

Abstract: An electrical device includes a coupling member, a supporting member, a movable member, and a sloped face. The coupling member is provided at a first casing and is formed with a rotation shaft provided with a protruding portion at an outer peripheral portion thereof. The supporting member is provided at a second casing, and is formed with a shaft hole into which the rotation shaft is inserted. The movable member is provided at the radial direction outside of the rotation shaft and has a restricted movable range about the circumferential direction. The sloped face is formed at a contact portion of the movable member with the protruding portion, and is sloped toward the side closest to the rotation shaft on progression from the rear side toward the front side in the rotation direction when the protruding portion makes contact with the movable member.

Abstract: A shower door hinge assembly includes a guide member including a generally cylindrical body, the body defining a plurality of diametrically opposed circumferential slots. The shower door hinge assembly further includes a clamp configured to receive a portion of a shower door, the clamp defining a recess configured to receive a first side of the guide member. The shower door hinge assembly further includes a base defining a plurality of openings and a spacer comprising a generally cylindrical body defining a plurality of through holes at an outer periphery thereof, a first side of the spacer configured to be rotatively received in a corresponding recess in a second side of the guide member. The shower door hinge assembly further includes a plurality of pins configured to be received in the plurality of openings of the base, extend through the plurality of through holes of the spacer, and engage a portion of the plurality of circumferential slots.

Abstract: A three-dimensionally adjustable hinge receives a pivotable element. A housing has an adjustable pivot support block inside adjusted in two directions by bolts extending through different walls of the housing and threaded into the pivot support to move the block in two different directions by turning the two different bolts. A supporting wedge with a threaded bolt moves the block the box-like enclosure in a third direction. Alternately, stacked adjusting plates with longitudinal bolts threaded through threaded openings in center sliders move the sliders in center slots aligned in different directions in the different plates to adjust a pivotable element attached to a top plate in two different directions. The plate assembly is pivotally attached to a base by an adjustable height bolt assembly for adjustment in a third direction.

Abstract: A blind hinge used for furniture, comprising a movable cup holder provided on the furniture door body, an adjusting base provided on the furniture body, a rotary arm connected between the movable cup holder and the adjusting base as well as an elastic element designed to generate opening/closing acting force on the movable cup holder. The adjusting base is designed as L-shape or bent shape to realize three-dimensional or two-dimensional adjustment to the hinge; a convex step used to support the elastic member is formed on the bottom base of the movable cup holder; the elastic member is a torsion spring, with its section on at least one of its end parts being square or circular; the connecting piece is provided with a boss and a convex part.

Abstract: A motor vehicle hinge is provided. The motor vehicle hinge includes a first hinge half which can be fastened to one of motor vehicle door and door frame, and a second hinge half which can be fastened to the other of motor vehicle door and door frame, and a hinge pin which connects the two hinge halves in an articulated manner. At least one of the two hinge halves has a supporting structure and an insert and the supporting structure and the insert are fixed with respect to one another. The hinge pin is mounted on at least one eye of the supporting structure.

Abstract: A vehicle door is provided with: a rear glass holder that holds door glass and has a first rear fastening hole: and a carrier plate having a second rear fastening hole fastened to the first rear fastening hole. The rear glass holder has a first rear engagement section. The carrier plate has a second engagement section engaged by the first rear engagement section. In the engaged state, the first rear fastening hole is offset below the second fastening hole. The offset amount of the first rear fastening hole and the second rear fastening hole is greater than the engagement margin of the first rear engagement section and the second engagement section.

Abstract: A window assembly may include a pane movable between open and closed positions, a cam having a cam surface, and a cam follower coupled to the movable pane for movement relative to the cam surface and engageable with the cam surface when the movable pane is near or in its closed position. The cam surface is inclined to direct the movable pane into a seal when the movable pane moves toward its closed position. The cam surface may include a linear portion that extends along at least a majority of the path of travel of the movable pane and up to the entire length of the path of travel. The cam follower may remain engaged with the cam surface throughout a desired portion of the path of travel of the movable pane.

Abstract: The present invention relates to a door protection system (1) for protecting the doors (5A-D) of a vehicle (3). The door protection system (1) includes a processor (7) configured to receive obstruction data identifying the position of one or more obstructions (O) in relation to the vehicle (3). The processor (7) determines the proximity of each vehicle door (5A-D) to the obstruction(s) and outputs a notification signal based on the determined proximity. A door position signal can be received from a door position sensor (29A-D) associated with each door (5A-D). The processor (7) can determine the proximity of each vehicle door (5A-D) to the obstruction(s) based on the door position signal in combination with the obstruction data. In an alternate arrangement, the door protection system (1) is configured to monitor one or more vehicle systems to determine when a vehicle occupant is preparing to open the vehicle door (5A-D).

Abstract: A vehicle opening/closing body control device includes an opening/closing drive device and a controller. When the opening/closing body is being closed, if the position of the opening/closing body when a trapping of a foreign object is detected is outside a specified range between a fully closed position and a specified position, the controller controls the operation of the opening/closing drive device to reverse the opening/closing body to perform the opening operation by a predetermined opening-and-returning distance and then stop the opening/closing body. If the position of trapping is in the specified range, the controller reverses the opening/closing body to perform the opening operation by the predetermined opening-and-returning distance or a greater distance and then stop the opening/closing body outside the specified range.

Abstract: The invention relates to an actuation system for automatic actuation of at least one element (2, 8, 11) covering an opening of a household appliance. The actuation system comprises at least one actuation element (3) constituted by at least one shape memory alloy element. The actuation system is adapted to actuate the element (2, 8, 11) when applying heat to the actuation element.

Abstract: A control device includes: an input unit to which a first signal is input from a detection unit detecting an operation for an opening-closing body; and a control unit generates a second signal for operating the opening-closing body, based on the first signal, wherein the control unit can be switched between a first power consumption mode and a second power consumption mode in which less power is consumed, and the control unit can be switched between a first state where the second power consumption mode is switched to the first power consumption mode, based on a first condition, and a second state where the second power consumption mode is switched to the first power consumption mode, based on a second condition on which the second power consumption mode is less likely to be switched to the first power consumption mode.

Abstract: A vehicle door controlling device includes a vehicle-side controller, installed on the vehicle including a door capable of being opened automatically; and a mobile device on which reservation setting of automatic door-opening of the door can be made by a user. The mobile device includes a transmitter unit configured to transmit a signal that includes information about the reservation setting, by a wireless communication function.

Abstract: A locking, concealed weapons storage cabinet designed to offer secure storage of home defense weapons. Weapons are readily available to the home owner but still secured to prevent unauthorized access. Cabinet is concealed as a piece of artwork that is either stand-alone or part of a group of artwork pieces or other ornamental pieces. Cabinet allows rapid access in regular or low light conditions.

Abstract: A storage and dispensing system including a frame defining a plurality of compartments and a door assembly including a plurality of doors. Each door is sized to generally correspond to one of the compartments of the frame to selectively provide access thereto, and the door assembly is removably coupled to the frame.

Abstract: In one embodiment, a window spacer has an outer elongate strip with a first surface and a second surface. The window spacer also has first and second inner elongate strips that each has a first surface and a second surface. The inner elongate strips are arranged so that each of the first surfaces of the inner elongate strips is spaced from the second surface of the outer elongate strip. The inner elongate strips are also spaced from each other to form an elongate intermediate pane gap. Support legs extend between the outer elongate strip and the two inner elongate strips.

Abstract: A door (1) includes a tabular main body (2), a liquid crystal device (4) which is disposed in an aperture portion formed in the main body (2), a handheld portion (3A) which is attached to the main body (2), and a touch sensor (3) which is attached to the handheld portion (3A). Because the touch sensor (3) is attached to the handheld portion (3A), when a person's hand touches the handheld portion (3A), the touch sensor (3) senses the person's hand. The liquid crystal device (4) is capable of varying between an invisible state and a visible state reversibly, and is made into a visible state in the case where the touch sensor (3) senses a person's hand.

Abstract: A door assembly including a door frame, a door coupled to the door frame such that the door is pivotable between an open position and a closed position, and a seal attached to one of the door or the door frame for providing a seal between the door and the door frame, wherein the seal has an inactive phase and an active phase providing superior sealing to the inactive phase, and wherein movement of the door from the open position to the closed position results in the seal changing from the inactive phase to the active phase.

Abstract: A thermal window system is provided where a cap is placed over an existing window frame. A top groove and a bottom groove are attached, along with side stops. A thermal window pane has a sash that surrounds another window pane. The sash fits into the top and bottom groove and overlays the side stops. The sash is held tightly to the side stops using magnetic attraction.

Abstract: An adjustable-width barricade for removable installation at the bottom of a staircase includes a flexible, frameless, planar, and generally-rectangular barrier member that extends between two posts on either side of the staircase. The barrier member is installed in a banister-to-banister configuration, a wall-to-banister configuration, or a wall-to-wall configuration. The barrier member has a front and back surface that forms an interior space therebetween. The adjustable-width barricade further includes a plurality of fasteners extending from one or both sides of the barrier member for tensioning engagement between one or both posts that maintains the lateral or horizontal integrity of the barricade.

Abstract: A lifting device of a cordless covering includes a cord reel, a car, a driving module, a connecting cord, and a lifting cord. The cord reel has a cone section, and is pivoted on a headrail for free rotation. The car is received in the headrail for reciprocation. The driving module is received in the headrail to drive the cord reel to rotate in a predetermined direction. The connecting cord has opposite ends connected to the car and the cord reel, wherein the connecting cord is reeled in and out of the cone section of the cord reel when the cord reel rotates in different directions. The lifting cord runs around the car, and then extends out of the headrail to be fastened to a bottom rail. The cord reel and the driving module are helpful to precisely stop and bottom rail at any desired position.

Abstract: A roller tube comprising a tube body which defines on its outwardly facing surface one or more blind substrate or shutter substrate receiving portions, wherein the tube body includes a plurality of sound damping elements located circumferentially around its inwardly facing surface, the sound damping elements extending longitudinally along at least part of the length of the tube body and defining a plurality of sound channels inside the tube

Abstract: A control system for a window shade includes a suspension member, a first and a second casing portion, a rotary drum, a torsion spring, a coupling member, a transmission axle, a central gear, a ring and planetary gears. The rotary drum is pivotally connected with the first casing portion, and is rotatable to wind and unwind the suspension member. The torsion spring can bias the rotary drum for winding the suspension member, and has a first and a second end respectively affixed with the second casing portion and a coupling member. The transmission axle is disposed through the torsion spring, and is rotationally coupled with the rotary drum and the central gear. The ring is affixed with the second casing portion and has protruding teeth. The planetary gears are pivotally supported by the coupling member, and are respectively meshed with the central gear and the teeth of the ring.

Abstract: The present embodiments provide for a system of fastening devices, e.g., mounts, brackets, and assemblies for installing roller window shades. In one embodiment, the fastening device system comprises two one-piece, disk-shaped mounting brackets, one for each end of a shade tube, wherein the mounting brackets are configured such that, in use, the outer circumference of the brackets are visible; the mounting means being largely hidden within the bracket or by the shade. In a particular embodiment, the fastening system is designed for use with motorized shades, wherein one mounting bracket is configured to key the shade motor, and one mounting bracket is configured to receive the idler pin.

Abstract: A ladder stabilization system includes a ladder that has a pair of front legs and a pair of back legs. Each of the front legs and the back legs has a top end and a bottom end. The front legs and the back legs are positioned in a deployed positioned having the bottom end of the back legs being spaced apart from the bottom end of the front legs. The bottom ends may abut a support surface. A pair of supports is provided and each of the front legs has an outer surface and each of the outer surfaces has one of the supports attached thereto. Each of the supports is pivotally extendable laterally away from an associated one of the front legs to inhibit tipping of the ladder.

Abstract: The ladder anchoring attachment of the preferred embodiments comprises a mounting coupler designed to attach the ladder anchoring safety attachment to a ladder, a swivel coupling attached to the mounting coupler, a telescoping arm attached to the opposite end of the swivel coupling from the mounting coupler, and a clamp attached to the distal end of the telescoping arm, where the clamp is designed to be capable of clamping to a solid object capable of anchoring the ladder while the ladder is in use. The ladder anchoring attachment of the preferred embodiments is designed to provide a way to secure a ladder against one or more of a) solid objects and b) structures to hold the ladder steady while in use, where the one or more of a) solid objects and b) structures may have preferred anchoring points that can vary significantly in their distance and position from the ladder.

Abstract: A ladder mounting and retaining system for use on building parapets utilizes a parapet support member secured to the parapet of a building, a ladder support member for retaining the sides of the lengths of a ladder, and a connecting member in the form of a threaded rod, interconnecting the parapet support member and the ladder support member for maintaining these members at a given distance from each other. The parapet support member is secured in position by locking nuts threaded around the connecting member and the ladder support member is secured over the outboard edge of the parapet by retention members. Ladder supports are adjustable on the ladder support member to accommodate ladders of different widths.

Abstract: A progressing cavity drilling motor positionable in a wellbore includes a tubular housing, a stator having a collection of helical lobes, and a rotor having a collection of helical lobes. The rotor orbits about the central longitudinal axis of the stator. A bearing assembly is coupled to an end of the housing and is disposed around an end of the rotor. The bearing assembly includes a bearing housing disposed concentrically in the stator housing, an outer bearing disposed concentrically in the bearing housing, and an inner bearing disposed on the first cylindrical end of the rotor. The inner bearing has a central axis aligned with the central axis of the rotor and is positioned in the outer bearing such that the inner bearing orbits around the central longitudinal axis of the stator when the rotor is rotated in the stator.

Abstract: Binder compositions for use in forming a bit body of an earth-boring bit include at least one of cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from at least one of a transition metal carbide up to 60 weight percent, a transition metal boride up to 60 weight percent, and a transition metal silicide up to 60 weight percent, wherein the weight percentages are based on the total weight of the binder. Earth-boring bit bodies include a cemented tungsten carbide material comprising tungsten carbide and a metallic binder, wherein the tungsten carbide comprises greater than 75 volume percent of the cemented tungsten carbide material.

Abstract: A boring apparatus includes an upper member and a bit body configured to rotate relative to a pilot bit. A first end of the upper member is connected to a workstring. An inner cavity of the upper member includes a first radial cam surface. A first end of the bit body is connected to a second end of the upper member such that the bit body rotates with the upper member. A second end of the bit body includes a working face. The pilot bit includes a first end disposed within the inner cavity of the upper member, and includes a second radial cam surface configured to cooperate with the first radial cam surface to deliver a hammering force. The pilot bit extends through a central bore of the bit body, and includes an engaging surface on its second end configured to engage a formation surrounding the wellbore.

Abstract: A wellbore conditioning system is disclosed. The system comprises at least one shaft and at least two eccentric unilateral reamers, wherein the unilateral reamers are positioned at a predetermined distance from each other and the unilateral reamers are positioned at a predetermined rotational angle from each other.

Abstract: The invention relates to a fracturing tube system (1) for introducing into a borehole in order to carry out a hydraulic and/or pneumatic fracturing process, comprising a plurality of tube lines (10). The fracturing tube system is to be designed such that it can be produced in a simpler and more economical manner and such that a variable total length of the fracturing tube system can be introduced into a borehole with little effort. This is achieved in that the fracturing tube system (1) comprises at least one traction cable (11), multiple coupling devices (12) which can be removably attached to the at least one traction cable (11), and multiple tube sections (100) which are separate from one another and which can be coupled to the coupling devices (12) in a pressure-tight manner and thus form the tube lines (10) as a whole.

Abstract: An elongate drill component for percussive drilling includes a female threaded end having an outer diameter (Dot), a male threaded end, and a central section between the ends having an outer diameter (Doc). The outer diameter of the female threaded end is larger than the outer diameter of the central section. A through-going flushing channel includes a central flushing channel having a diameter (Dic) and thread flushing channels having a diameter (Dit). The ratio of an elastic section modulus of a threaded joint measured when the female threaded end is connected to the male threaded end of an identical component to an elastic section modulus of the central section, St/Sc, is more than 1.5 and in that a ratio of the diameter of the central flushing channel to the outer diameter of the central section, Dic/Doc is between 0.45 and 0.95.