1534 results about "Flute" patented technology

An expandable reamer includes, in one exemplary embodiment thereof, a cannulated shaft and a plurality of straight cutting blades having deformable points. The blades are hingably outwardly rotatable at the deformation points between a contracted position and an expanded position. In the contracted position, the blades are substantially parallel to the longitudinal axis of the cannulated shaft and, in the expanded position, the blades have at least a portion oriented radially outward from the longitudinal axis, thereby forming a larger diameter cutting surface in the expanded position and in the contracted position. The blades are formed from a portion of the cannulated shaft by, e.g. milling longitudinally extending slots through the wall of the cannulated shaft, the slots serving as flutes dividing the cutting edge and trailing edge of each adjacent blade. Each blade may also include more than one segment arranged along its length, the segments coupled by deformation points. The expandable reamer may be used for cutting a cavity in a bone or other structure that is larger than the diameter of the entry point into the bone and greater than the diameter of the contracted reamer.

An apparatus in a drill string comprises an internally upset drill pipe. The drill pipe comprises a first end, a second end, and an elongate tube intermediate the first and second ends. The elongate tube and the ends comprising a continuous an inside surface with a plurality of diameters. A conformable metal tube is disposed within the drill pipe intermediate the ends thereof and terminating adjacent to the ends of the drill pipe. The conformable metal tube substantially conforms to the continuous inside surface of the metal tube. The metal tube may comprise a non-uniform section which is expanded to conform to the inside surface of the drill pipe. The non-uniform section may comprise protrusions selected from the group consisting of convolutions, corrugations, flutes, and dimples. The non-uniform section extends generally longitudinally along the length of the tube. The metal tube may be adapted to stretch as the drill pipes stretch.

A core construction for use in a filter element includes a tubular member having a wall with opposite first and second ends. The first end is adaptable for engagement with structure, such as a frame utilized with a filter element. The second end is also engageable with external structure, such as a handle. Preferably, a filter element is constructed by rolling a media construction around the core construction. The media construction includes a corrugated sheet secured to a flat sheet rolled around the core construction into a coiled construction. The coiled construction has inlet flutes and outlet flutes. Methods for using and assembling filter elements preferably use core constructions as described herein.

Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.

A rotary cutting tool that includes an elongated tool body, rotatable along a longitudinal axis of rotation is disclosed. It has a fluted cutting end on one end and a shank end on the opposite end of the tool body. The fluted cutting end includes a nose, a periphery and an end surface that extends from the nose to the periphery. A plurality of axial flutes extends from the end surface to the fluted cutting end and combines with a plurality of cutting edges. The cutting edges are unequally spaced along the circumference of the end surface lying in a plane perpendicular to the longitudinal axis of rotation. In addition, all cutting edges are of a different helix from one another and the cutting edge geometries vary from one another to create a different sound pattern. This reduces resonant harmonic vibrations.

A system for accessing a sinus cavity of a subject includes an access tool configured to penetrate into the sinus cavity from a location external the subject. The system further includes an access sheath having a distal tubular portion, a lumen extending through the access sheath and the distal tubular portion and dimensioned to receive the access tool, the distal tubular portion comprising one or more cutting surfaces disposed about an external surface thereof. The one or more cutting surfaces may include a plurality of longitudinally oriented grooves for flutes disposed about the periphery of the distal tubular member.

Mechanisms for predicting a remaining useful life of a cutter head of a milling machine that includes a plurality of flutes are disclosed. Features are extracted from reference data associated with a plurality of reference cutter heads. The reference data includes reference vibration data and reference wear data. At least two Neural Network predictive models are trained in parallel for predicting the remaining life of a new cutter head based upon the extracted features. Operational data associated with the new cutter head is obtained. The operational data includes operational vibration data and operational wear data. Features extracted from the operational data are input into an optimal predictive model of the at least two Neural Network predictive models. A remaining useful life of the new cutter head is estimated by the optimal predictive model.

This invention relates generally to devices, systems and methods for the internal fixation of bone fractures, and particularly, to intramedullary fracture fixation devices such as those used in, for example, the treatment of long bone fractures. An IM rod preferably is provided with multiple curved sections in different planes preferably designed to conform with the long bones of a patient, both during insertion and in the rod's final position in the long bone. In addition, the overlap of portions of the curved sections results in a co-planar curvature of portions of the IM rod which assist in the insertion process by guiding the proper rotation of the IM rod as it is inserted into the bone. Spiraling flutes extending down the distal portion of the rod also assist in properly guiding and orienting the rod about its longitudinal axis during insertion such that the appropriate segment of the curved rod conforms with the appropriate portion of the long bone at the appropriate place.

An object delivery session, such as a File Delivery over Unidirectional Transport (FLUTE) session, is joined and a description of a plurality of objects provided by the session are provided. The description indicates one or more groupings of the plurality of objects. An interesting object is determined from the plurality of objects. Based on the interesting object and the description of the plurality of objects, one or more of the plurality of objects are identified for downloading.

A drill includes a shank, a central insert and a peripheral insert. The shank defines a central axis of rotation and has pockets which carry the peripheral and central inserts. Chip flutes are formed in an outer periphery of the shank for conducting chips cut by the respective inserts. The peripheral insert includes a first operative cutting edge, and the central insert includes a second operative cutting edge which overlaps the first cutting edge at an overlap region. The central insert forms a rake surface adjacent to the second cutting edge. The rake surface includes a first portion disposed at the overlap region, and a second portion disposed at the axis of rotation of the shank. The first portion has a larger rake angle than the second portion.

This row unit utilizes an improved multi-zone, multi-functional stalk roll, which contains a novel revolving entry window to improve entry and increase engagement of the fluted portion of the stalk roll flutes with the corn stalk. The stalk rolls described are multi-sectional and contain multi-length variable flutes. The number of flutes described for each zone may vary as well as whether the flutes are meshing or non-meshing and angled or non-angled. The stalk rolls described allow a constant speed drive shaft to create lower and/or higher effective circumferential contact speeds within each zone of the stalk roll. The invention provides that the rotating transport vanes located on the helical nose cone at the entry area to the stalk roll flutes lock the corn stalk into a revolving entry window. This novel row unit contains a multi-zone, multi-functional stripper plate that ensures minimal ear wedging and maximum discharge of material other than ears. This row unit utilizes a novel gathering/conveying chain(s), which reduces the number of and increases the angle and size of the paddles. This row unit design optimizes operation between the components imparting force to the corn plant and ears. The invention has a smooth uninterrupted improved flow of corn stalk material through the ear separation chamber and is the first row unit designed to be environmentally friendly by ensuring that the majority of the corn plant remains connected to its original root system which prevents it from rapidly decomposing, blowing or washing away. The row unit cover is spatially designed for improved flow in down, damp and tough harvesting conditions.

An intramedullary bone plate with sheath having an intramedullary stem, a bone plate head and a neck that connects the intramedullary stem to the bone plate head in a manner where the stem and head are offset from each other longitudinally and axially in the sagittal plane. The bone plate head includes a sheath recess wherein non-threaded bone screw holes and a threaded sheath screw hole are located. Bone screws are inserted through the sheath recess and oriented at set angles allowing for bone fragment fixation and fracture reduction. A sheath element is placed within the boundaries of the sheath recess and secured with the sheath screw. The intramedullary stem includes longitudinal flutes in its distal portion and a bi-arced geometry in its proximal portion providing for stabilization of the implanted device. The bone plate head configuration provides for more complete fracture capture and multiple fixation modalities.

A method of making segmented filters including moving substantially identical segments of one type at uniform rate to a transferring element, which places each segment separately on an exit path. Setting of the filter segments in a repeating group on the exit path is accomplished by delay in collecting segments by a transferring element in each module of the apparatus. Uniform positioning is effected using the transferring element which includes uniformly spaced drivers, and non-uniform positioning is effected using the transferring element with non-uniformly spaced drivers. The apparatus includes a guiding element positioned adjacent to a cutting drum and has a wall closing a channel for a set of segments drawn out of a flute on the drum. The filter set is led through the channel with the aid of a dog of a chain and is advanced by a worm surface of a pushing together drum. A separator positioned at the end of the channel which separates single filter segments and may be a disc cam pushing out the segment onto the transferring element between two neighbouring drivers into a chamber created by a supporting element. A stream of compressed air from nozzle directed towards the area between a shoe guide and separator helps separate and stabilize the filter segment.

A rotary cutting tool or end mill is provided, the tool comprising a plurality of pairs of diametrically-opposed, symmetrical, helical flutes formed in a cutting portion of the tool body, wherein the pitch between at least one pair of adjacent helical flutes is less than or greater than the pitch of at least one other pair of adjacent helical flutes in at least one radial plane along the axial length of the flutes, a plurality of peripheral cutting edges, wherein at least one of the peripheral cutting edges has a radial rake angle different from radial rake angle of a peripheral cutting edge of a different helical flute.

An inflatable structure for use in biological lumens and methods of making and using the same are disclosed. The structure can have an inflatable balloon formed into a plurality of cells encircled by a shell. A strap can extend between the cells. The shell can have proximal and distal tapered necks, longitudinally-oriented flutes, and apertures at the proximal and distal ends of the shell. The shell can include a reinforcement having tapered sections over the necks and strips extending between the tapered sections. A semi-compliant or compliant balloon can be placed around the outside of the inflatable structure.

A twist drill, having a replaceable drill tip, comprising a drill bit shaft (1), a cutting insert (2) which is detachably fixed thereto and which forms the tip area of the twist drill, and comprises a flute (3) that continues into the cutting insert (2). The cutting insert rests, with a bearing surface (6) extending orthogonal to the center longitudinal axis (8) of the drill bit, on the face (7) of the drill bit shaft (1) and extends with a fixing stud (9), which centrally protrudes from the bearing surface (6), into a receiving recess (10) which is configured complementary thereto and which is provided in the face (7) of the drill bit shaft (1). At least one peripheral section (13) of the fixing stud (9) comprises a first longitudinal section (15) that, with a screw surface (16) which points away from the drill bit shaft (1), which slopes upward to the drill bit tip (5) in a direction of rotation of the drill bit, and which interacts with an opposite surface (19) on the inner wall (14) of the receiving recess (10), merges into a second longitudinal section (17).

A friction stir weld tool sleeve is supported by an underlying support pin. The pin material is preferably selected for toughness and fracture characteristics. The pin sleeve preferably has a geometry which employs the use of an interrupted thread, a plurality of flutes and/or eccentric path to provide greater flow through. Paddles have been found to assist in imparting friction and directing plastic metal during the welding process.

An improved system and method for repairing and/or retrieving lost or crushed data, such as files carried by the FLUTE protocol, by using a P2P network in wireless digital broadcast networks. According to various embodiments, when a peer device has failed to receive a data packet from operator, or when a data packet contains errors, the peer device sends a Search request to neighboring devices. The neighboring devices can either return the data packet in integrated form to the peer device or, if they do not possess the data packet in integrated form, reroute the request to other devices. Mechanisms are also provided for each peer device to maintain and update a table of neighboring devices including an identification of the devices and their connection capabilities.

A transport mechanism for supporting the download of SVG over FLUTE or UDP. A RTP payload format is specified that enables live streaming and the streaming of rich media content. According to the present invention, rich media content is encapsulated in RTP packets based upon the payload format at the sender. With the present invention, an efficient framework is provided for satisfying several use cases or scenarios that involve rich media transmission.