339 results about "Radial projection" patented technology

An elongate tubular body extends between a rotatable cutter and a control. The cutter is connected to the control with a rotatable element. A vacuum is applied through an annular passage defined between the tubular body and the rotatable element. The cutter has at least one radial projection which cooperates with at least one stationary element on the tubular body to cut material drawn into the tubular body. Material that has been processed by the cutter is aspirated through the tubular body for disposal.

A device and method for fastening one or more graft strands to a bone. The device may include a first member having a first opening and a second member having a second opening. The first member may include a plurality of radial projections defining recesses, wherein each graft is separately received in a corresponding recess. The device may also include a fastener passing through the first and second openings. The fastener may have a first portion engaging the first member and a second portion received into the bone, such that tightening the fastener against the first member compresses the graft strands between opposing faces of the first and second members.

A plastic barb clamp provides leakproof connection of a flexible tube in a barb fitting. The barb clamp includes a collet and a sleeve. The barb clamp is configured to fit snugly within the tube. The collet is slid over the tube. Annular retainers on the interior surface of the collet fit tightly around the tube and under an expanded portion of the barb fitting. The sleeve is then slid over the collet. As the sleeve moves over the collet, tangs on the collet are pushed radially inwardly into the tube and barb fitting. The exterior surface of the collet has radial projections or expanded diameter portions for locking with the sleeve. The sleeve has an annular projection or a reduced diameter portion on the interior surface of the sleeve to correspond to the exterior surface of the collet to provide a secure lock between the collet and sleeve. To properly orientate the sleeve relative to the collet, the sleeve and collet can be molded as one piece, wherein the sleeve and collet are connected by thin, frangible pieces of plastic.

For an explosion-proof connection of two electric line ends (25, 26), the contact elements (27, 28) are accommodated in two tubes (1, 2), which can be joined in an explosion-proof manner. Each of the plug-in contact parts is axially secured in its tube by a radial projection (41) in the direction toward the end facing the other tube. At its line end, each of the tubes is closed by an end cap (42), which sealingly surrounds with a narrow outlet (44) the electric lines, including an insulation (43). The tube, in which the plug-in contact part with the contact pins is axially secured, extends beyond the tip of the contact pins, and has there an enlarged diameter, with which it surrounds the other tube (inner tube 1,3) with a narrow cylindrical gap (sealing gap 20).

A supply valve for a pneumatically-operated gas demand apparatus or an intermittent gas delivery device disposed between a source of pressurized respiratory gas and a patient. The valve includes first and second housing parts defining a chamber and having first and second cooperating fluid passageways. A flexible diaphragm member is disposed in the chamber. The diaphragm member includes a central sealing portion and a radial projection integral with the central sealing portion for enabling fluid communication between the first and second fluid passageways and for sealing the first and second passageways against leakage.

A shaft seal assembly is disclosed having a stator including a main body and axial and radial projections therefrom. The rotor is radially extended and encompasses the axial and radial projections from said stator. A passageway formed between the radial projection of stator and rotor results in an axial passageway having its opening facing rearwardly from the rotor and away from the source of impinging coolant and/or contaminant. A concentric circumferential receptor groove in the stator facing the housing allows insertion of conductive means for transmission of electrostatic charge away from the shaft through the shaft seal assembly to the housing and ground. The receptor groove is opposite the axial passageway and provides for both a substantially lower contaminant environment and improved engagement with conductive means. The dimension of interface gap between the rotor and the radial projection from the stator, which the access to the shaft of any impinging material is fixed at a predetermined value and does not vary with the relative movement between the rotor and the stator. The shaft seal assembly provides improved rejection or warding off of contaminants from ingress into the labyrinths and ultimately restrains attack of the bearing environment as well as substantial elimination of bearing current and attendant bearing fluting or frosting.

A shaft seal assembly is disclosed having a stator including a main body and axial and radial projections therefrom. The rotor may be radially extended to encompass the axial and radial projections from said stator. A passageway formed between the radial projection of stator and rotor results in an axial passageway having its opening facing rearwardly from the rotor and away from the source of impinging coolant and/or contaminant. A concentric circumferential receptor groove in the stator facing the housing allows insertion of a conductive insert for transmission of electrostatic charge away from the shaft through the shaft seal assembly to the housing and ground. The receptor groove is opposite the axial passageway and provides for both a substantially lower contaminant environment and improved engagement with the conductive insert.

The invention discloses a picture similarity calculation method, comprising the steps of: (1) calculating hash values of two pictures to be compared by using a hash method based on DCT (Discrete Cosine Transformation); (2) calculating the Hamming distance dis-h between the two hash values; (3) if the Hamming distance is not in a set range, directly calculating the similarity of the two pictures via a formula; (4) if the Hamming distance is in the set range, calculating a hash value by using a hash method based on radial projection; and (5) calculating a Pearson's correlation coefficient of the hash value obtained last step, and calculating the similarity of the two pictures in combination with the Hamming distance obtained in step 2. The method has certain robustness for image rotation, avoids the influence caused by gamma correction or color histogram adjustment, and improves the accuracy of picture similarity results.

A digitizer pen system including: a pen having an elongated body terminating in a writing tip and at least one ultrasound transducer deployed adjacent to the writing tip. The digitizer pen also includes a writing element removably inserted into the writing tip. The writing element has an end protruding from the writing tip. The digitizer pen also includes an extraction tool including a plurality of flexible leaves deployed around a central position. The flexible leaves are spaced such that, when the extraction tool is pressed onto the protruding end of the writing element, the flexible leaves grip the protruding end so as to facilitate extraction of the writing element. The elongated body has a main grip surface. The elongated body includes at least one radial projection located between the ultrasound transducer and the main grip surface.

A device for refilling a first container, fitted with a threaded first neck and a vaporization head, includes a second container for a liquid, a connection component including a first bearing plate for engaging the first neck and a second bearing plate engaging the second container, a median wall including a central orifice, and a means of closing the second container or the central orifice. The connection component engages an axially movable component capable of sliding inside the connection component, to form a valve, the movable component being able to move, under the action of an axial constraint, from a closed position “F” to an open position “O”, or, under the action of a spring, from the position “O” to the position “F”. The movable component includes a radial projection for engaging the first neck so that the first neck exerts an axial constraint on the radial projection.

A drive system for a rotary device, such as an automotive alternator compensates for and reduces the effect of sudden bidirectional rotational velocity variations of the pulley caused by sudden acceleration and deceleration of an internal combustion engine without using a one-way clutch. The drive system comprises a pulley comprising a tubular barrel having a plurality of radial projections extending inwardly from its inner surface, and a cylindrical hub that is journaled within the pulley and connected to the alternator shaft. The hub has a plurality of radial projections extending outwardly from its outer circumference which are interleaved between the pulley projections. A plurality of solid resilient polymer spring members are disposed in the cavity spaces between the projections. Upon sudden acceleration or deceleration of the pulley, it rotates angularly relative to the hub and shaft to resiliently compress the polymer spring members, which exert a counter restoring force to eliminate the relative angular rotation.

A compact electric motor has a rotor, and a stator (10) having a alotted lamination stack (16) defining slots separated by teeth, said teeth having tooth heads (153). Partial windings (17) are arranged in said. On at least one axial end of said lamination stack, jumper rings (11, 12, 13) and a neutral ring (14) are arranged. The latter has a plurality of inwardly extending radial projections (141) having free ends (142) adapted for connection to ends (171) of said partial windings (17). Connection of partial windings (17) in parallel provides a favorable power/size ratio and substantial pour output, even with low operating voltage.

A pipeline cleaning tool is constructed with an elongated support mechanism having a rigid cutting unit mounted at one end and a folding propulsion assembly mounted at the other end. The propulsion assembly includes a system of folding sector panels that are hinged to a central hub for rotation relative thereto about tangential axes of rotation. A separate expansion flap is secured to each sector panel for rotation relative thereto about a radially oriented axis of rotation by a hinged connection to one radial side edge. Each expansion flap partially overlaps the upstream face of the sector panel immediately adjacent to that upon which it is mounted. The area of overlap is controlled by the extent to which the sector panels of the propulsion unit are folded back toward the supporting shaft. The greater the extent of folding, the greater will be the area of overlap of each expansion flap upon the upstream face of an adjacent sector panel. A disc-shaped backing seal is employed immediately adjacent the sector panels and the expansion flaps against the upstream faces thereof. A pressure differential is thereby formed across the propulsion unit which propels the cleaning tool along a section of pipeline to be cleaned. Radially projecting teeth and, in some cases, longitudinally projecting blades, slice through and break up accumulated clogging material that adheres to the inside of the pipeline wall as the pipeline cleaning unit is forced through the pipeline by pressure against the upstream side of the propulsion unit. The distance of radial projection of the teeth of the cutting unit may be made adjustable.

A portable radial projection light source arrangement includes a shelter housing and an illumination unit. The shelter housing includes a protection base having a light source cavity therein, and a supporting frame mounted on the protection base. The illumination unit includes a power source supported in the protection base, a light source disposed in the light source cavity and electrically connected to the power source, and a reflecting member supported at a position coaxially above the light source wherein the reflecting member has a light reflecting surface radially projected from the light source in such a manner that when the light source emits light, the light is radially reflected by the light reflecting surface of the reflecting member to outside.

A variable sprocket IVT machine has a sprocket wheel, on an input shaft, including a plurality of wheel bodies which are independently rotatable on the shaft, a sprocket slidably located in and projecting radially from a sleeve in each wheel body, connecting arrangements, connecting the wheel bodies in the composite wheel, which are adapted to vary the angular disposition between and the degree of radial projection of adjacent sprockets relatively to each other to ensure clean engagement of the sprockets with uniformly spaced apertures in a drive chain which partially surrounds the wheel in a radially movable zone of sprocket engagement, elements for engaging the wheel bodies of the sprockets in the zone with the input shaft and a control arrangement which supports the sprockets not in the zone and which is movable to vary the ratio of rotation of the input shaft relatively to a chain driven output shaft.

A bracket includes a fixing piece on a rotation element (3), said fixing piece comprising a body (22) in the general form of a ring, provided with an annular radial projection (23). The body includes an opening (33) which permits a variation in the diameter of said body (22) on assembly with engagement of the projection (23) in a corresponding groove (9) on the rotation element (3) to give a radial interference fit. A bar (28) prevents a variation in the diameter of the body (22) as above after the assembly thereof.

The invention discloses an iris image segmenting method and device. The method includes performing rough positioning on a pupil in an iris image; expanding an image in a candidate area on the outer boundary of an annular iris into a rectangular image in a polar coordinate system and acquiring an excircle boundary estimation value of a target iris according to the gray level change of the rectangular image; intercepting an upper eyelid zone and a lower eyelid zone of the iris image according to the excircle boundary, acquiring boundary points of an upper eyelid and a lower eyelid, performing curve fitting on the boundary points of the upper eyelid and the lower eyelid, and obtaining an upper eyelid boundary curve and a lower eyelid boundary curve; performing noise detection on valid zones determined according to the upper eyelid boundary and a lower eyelid boundary; performing fine positioning on the excircle boundary of the iris through a radial projection method and performing fine positioning on the boundary of the pupil by utilizing a calculus detection operator. The invention solves a problem of low accuracy of low quality iris image segmentation performed by iris image segmenting methods in the prior art.

A filter cartridge has a longitudinal axis and comprises a housing, a filter element, a first collar and a second collar. The housing has a generally cylindrical sidewall and defines an open first end, an axially opposite second end, and a flange projecting radially away from the axis at the first end. The filter element has a ring of filter media circumscribing the axis and extending between first and second end caps. A ledge projects radially from an inner surface of the second collar. The second collar has an annular sidewall having a shoulder projecting from an inner surface. The ledge and the shoulder radially overlap to retain the flange. The first collar may define axially-oriented grooves configured to receive corresponding radial projections of the first end cap, axially securing the filter element within the housing.

An inflatable ear piece is formed for insertion and placement in an external auditory canal. The ear piece has an inflatable balloon that may be selectively inflated and deflated. When the balloon is inflated, it expands and braces against the walls of the auditory canal. The ear piece has a receiver module with a sound generator and a connection to an exterior device. The sound waves generated in the receiver module are guided to the ear drum via a carrier which also holds the balloon. A pump and valve is provided for inflating, or selectively deflating, the balloon. The pump is connected by way of a micro tube that projects centrally inside the sound channel of the balloon carrier and its tip projects into a radial projection or a bridge across the sound channel. The receiver and balloon modules may be connected in any rotational orientation.

A medical line securement device holds a medical article such as a connector fitting for a catheter or a catheter adaptor in position upon the body of a patient and inhibits axial motion of the medical article. The securement device includes a retainer with a base and a cover. The cover is hinged to the base such that it may be moved between an open and closed position. The base and cover each have a groove which cooperate when the cover is in the closed position to form a channel through the retainer. The medical article includes an elongated body which is received within the groove of the retainer, the elongated body lying between at least a pair of regions of larger radius of the medical article. By receiving the portion of the elongated body of the medical article between the regions of larger radius, axial motion of the medical article through the groove is inhibited. The retainer may also include one or more slots to receive any radial projections of the medical article within the retainer.