1287 results about "Keyhole" patented technology

The invention discloses an automatic alarm invisible connection interlocking double-key anti-theft lock. A fixed contact is arranged on a lock body or a fixed shell of the anti-theft lock, a specially-matched key hole and an invisible hole are formed in a lock cylinder, the front ends of the lock body and the lock cylinder are provided with interlocking covers, a locking needle hole is formed in a locking ejection column, an invisible connection device is arranged in the invisible hole, an invisible spring is installed in an invisible bearing hole in the back end of the invisible connection device, an interlocking hole in the lock body is provided with an interlocking spring, a centre, a locking needle and an abutting-against needle, a rotary contact is arranged on a rotary connection device, the rotary connection device is located behind the invisible connection device, an electronic telecontrol device, the rotary contact and the fixed contact are connected into a circuit of an electromagnet, and the electromagnet is connected with a locking transverse piece. The invisible connection device and a specially-matched key are disconnected, the invisible connection device and the rotary connection device are disconnected, the lock cylinder and the rotary connection device are disconnected, the electronic telecontrol device is invisibly installed in the circuit of the electromagnet, the ejection column can be transversely locked through the centre and the locking needle, an interlocking key and a specially-matched key are separated, and alarming, hiding, interlocking and multiple theft prevention of the anti-theft lock are achieved.

A method for performing a high tibial, dome osteotomy to adjust the lateral and/or angular disposition of the tibial plateau relative to the lower portion of the tibia, the method comprising: forming an arcuate osteotomy cut in the tibia to subdivide it into upper and lower portions; manipulating the upper and lower portions to adjust their lateral and/or angular dispositions relative to one another; forming a pair of keyholes along the osteotomy cut; forming a keyhole slot to connect the two keyholes; forming a fixation hole in the tibia for each keyhole; providing an implant comprising a pair of keys connected by a bridge, each key comprising a bore for receiving a fixation screw therein; inserting the implant so that the keys are disposed in the keyholes, and so that the bores of the keys are aligned with the fixation holes; and inserting fixation screws through the bores of the keys and into the fixation holes of the keyholes so as to stabilize the upper and lower portions of the tibia.

A biocompatible interference screw for soft tissue or bone-to-bone fixation comprises a screw body extending from a screw head to a distal tip of the screw. The screw body has an outer surface, and comprises polyether-ether-ketone (PEEK) material. Advantageously, the body outer surface has a textured surface finish for substantially improving pull-out strength of the interference screw. The textured surface finish is textured, in preferred embodiments, with a minimum of approximately 16 micro inches of surface roughness. The screw head comprises a tapered square keyhole for receiving a distal end of a driver instrument. The screw comprises a series of threads, which have a relatively smooth profile, in order to prevent graft tissue laceration as the screw is being inserted. The distal tip of the screw body comprises a narrow tip, and a distal end of the screw body is angled inwardly toward the narrow distal tip.

A method is disclosed for directing an antenna mounted in a restricted radome on an aircraft. The method can include the operation of determining whether the antenna is directed in a keyhole. A further operation can involve controlling the antenna using an elevation gimbal and an azimuth gimbal when it is determined the antenna is directed outside the keyhole. Another operation can include directing the antenna using an elevation, azimuth, and cross elevation gimbal when it is determined the antenna is pointing in the keyhole.

A computer utility for any kind of search engine or data that provides a graphical user interface for displaying search results and live refinement of the results, by automatic changing and/or offer to change the results list in real time, according to the user's demonstrated navigational interests.

The graphical user interface includes resizable windows, configured to display the contents of the links (“keyhole windows”) The search results list may be dynamically altered by real time re-searching according to the reaction of and browsing movements of the user examining the search results. In the keyhole windows users may independently browse through and view content contained therein including links.

This invention detects user intention based upon its viewing and browsing of linked websites inside the keyhole windows. Thus, the user can more easily browse through the most relevant websites for him.

This invention may also support viewing and browsing through any kind of links content which may be found in other software programs for example, e-mails, games, advertising, web search results, data bases, Internet Protocol Television (IPTV) or index lists giving real-time re-searching of any kind of search results or index lists thereby making the user's search more efficient and time saving.

In the case of advertising, the user will be presented with selected advertising more suitable to his needs and desires and the advertiser will catch an audience with an initial sympathy towards the product being advertised.

An osteotomy plate for maintaining the spacing of a wedge-like opening in bone, the osteotomy plate comprising: a body having a front side and a back side; a key extending out of the back side of the body for disposition in a keyhole formed in the bone along the wedge-like opening; and a plurality of mounting holes for receiving fixation screws therein, the mounting holes being formed in the body such that when the key is disposed in the keyhole, the mounting holes direct the fixation screws into bone on either side of the wedge-like opening.

In certain example embodiments, a solar collector system including a plurality of reflectors is provided. In certain example embodiments, a bracket or pad is bonded to a reflecting panel. The bracket has at least one fastening element protruding therefrom. The fastening element cooperates with at least a hole formed in a mounting frame for securing the panel to a frame, e.g., in mounting the panel. In certain example embodiments, the at least one fastening element comprises two deformable tabs. In certain example embodiments, the at least one fastening element is a shoulder screw that cooperates with a keyhole and slot arrangement provided to the mounting frame, with the shoulder screw being held in place by an optional spring clip.

The present invention provides minimally invasive devices and methods for accessing the sinuses and their surrounding structures for surgery and other treatments. The anterior ethmoid and maxillary sinuses are accessed and treated under minimal anesthesia with little or no postoperative limitation of activity or adverse symptoms. Direct visual verification of the sinuses and their natural ostia is utilized. Other paranasal sinuses may be treated by this method as well. The sinuses, in particular the maxillary and anterior ethmoid, are accessed via a direct anterior to posterior axis and the natural ostia of those sinuses is directly visualized for placement of a guide-free dilator, in the desired location within the natural ostia. That access to the maxillary ostium is accomplished by the anterior transuncinate “keyhole” approach in which a hole is punched in the uncinate process with the described devices according to the described methods. The properly placed dilator is expanded to allow drainage of the inflamed sinus and then withdrawn. An analogous ethmoid bulla “keyhole” approach and subsequent dilation are used for the anterior ethmoid sinus ostia. Pharmaceutical agents may be placed at desired locations in the sinuses using the same access technique.

A novel image-guided system for precise automatic targeting in minimally invasive keyhole neurosurgery. The system consists of a miniature robot fitted with a mechanical guide for needle, probe, or catheter insertion. Intraoperative, the robot is directly affixed to a head clamp or to the patient skull. It automatically positions itself with respect to predefined entry points and targets in a preoperative CT/MRI image following an anatomical registration with an intraoperative 3D surface scan of the patient facial features and a registration jig. The registration procedure is a novel three-way scheme, in which the intraoperative surface scan including the registration jig is matched to a model generated from the preoperative CT/MRI image, the robot position is known in relation to the registration jig, and the entry and target points are known from the preoperative CT/MRI image, such that the robot position can be related to the entry and target points.

In laser welding of metallic workpieces, the energetic beam is moved over the workpiece surface to form a pool of molten weld metal that quickly solidifies behind the advance of the laser into a weld nugget. The laser beam produces a keyhole of plasma-containing vapor within the molten pool. Weld nugget porosity, due to entrapment of the vapor, is minimized by continually sensing radiation from the molten metal pool to determine pool depth and width and then controlling laser power and speed to continually produce a weld metal pool wide enough for the liquid to fully expel the vapor and solidify into a pore free nugget.

A firearm with keyhole-shaped rail mounting points has a forend element having an exterior surface and interior surface. The forend element defines a plurality of rail mounting apertures extending from the interior surface to the exterior surface. Each of the apertures has a first portion with a first diameter to closely receive a fastener head of a first diameter. Each of the apertures has a second portion with a second width less than the first diameter size to receive a shank portion of a fastener. There may be a recess on the interior surface size to receive the fastener head, the recess positioned at the second portion.

A keyhole opening is formed during one example of manufacturing a memory cell. An upper layer is formed on a base layer, the base layer having a bottom electrode. The upper layer includes a second layer formed over the base layer and a first layer formed over the second layer. A keyhole opening is formed through the upper layer to expose a surface of the bottom electrode and to create a first memory cell subassembly. The keyhole opening comprises a first, upper opening segment formed within the first layer and a second opening segment formed within the second layer, the first and second opening segments having first and second widths. The first layer has an overhanging portion extending into the opening so that the first width is shorter than the second width.

A modular graphics display panel includes an enclosure and an array of display elements mounted on a front surface of a bezel affixed to a front opening in the enclosure. Protrusions are made on two sides of the enclosure with a power/data connector mounted on the protrusions. Mating dimples are made on two opposite sides of the enclosure with mating power/data connectors mounted within the mating dimples. Corner keyholes are formed in each of the back corners of the enclosure for accepting locking keys.

The system and method provides a retractor and use which gives the traditional ability to apply force and hold the surgical field open, but with the ability to select the depth, and shape of retraction tips for use during surgery, and in particular, spinal surgery. Any surgery may be carried out in an open surgical field with minimal patient trauma. A keyhole surgical opening accords a surgeon a maximum open operating field and necessitates only a minimal incision. An instrumentation-interchangeable tip junction facilitates the inserted support of interchangeable tips and may preferably include a connection shape which provides for a rotation lock.

A machine control system and method includes an on-board GPS receiver, an on-board processor adapted to store a preplanned guide pattern and a guidance device. The processor includes a comparison function for comparing the vehicle GPS position with a line segment of the preplanned guide pattern. The processor controls the guidance device for guiding the vehicle along the line segment. Various guide pattern modification functions are programmed into the processor, including best-fit polynomial correction, spline correction, turn-flattening to accommodate minimum vehicle turning radii and automatic end-of-swath keyhole turning.

A firearm with keyhole-shaped rail mounting points has a forend element having an exterior surface and interior surface. The forend element defines a plurality of rail mounting apertures extending from the interior surface to the exterior surface. Each of the apertures has a first portion with a first diameter to closely receive a fastener head of a first diameter. Each of the apertures has a second portion with a second width less than the first diameter size to receive a shank portion of a fastener. There may be a recess on the interior surface size to receive the fastener head, the recess positioned at the second portion.

A combined welding method with a filler wire using both a YAG laser and an electric arc, and a combined welding device with a filler wire using both a YAG laser and an electric arc, a welding in which a welding gap margin is broad, height and shape of reinforcement of weld, and penetration depth are preferable, can be effectively performed by the method or the device. The welding is performed by directing a laser focus 8 of a YAG laser 9 on base materials 31 and 32 for welding or the vicinity of the focus 8 by a filler wire 20, connecting a power source 22 for applying a voltage to the filler wire between the filler wire 20 and the base materials for welding, irradiating a YAG laser on the base materials for welding in the connecting condition, whereby an arc is induced to the filler wire by a plume (plasma-activated gas and the metal vapor), and holding the plume generated by YAG laser inside and outside of a keyhole.

To overcome 1) the high levels of porosity due to coating material vaporization and entrapment into the weld, 2) spewing of molten base metal from the weld leaving holes and pits in the weld, and 3) humping effects when oblong beam configurations are used at higher weld speeds to weld coated materials, the present invention features an energy source (10) with multiple separated energy beams (24, 26) (formed by using multiple separate beam sources or manipulation of a single beam (14) into separated multiple energy beams (44, 46) using wedge mirror (18) and parabolic focusing mirror (20)) that produces high quality (porosity free) lap welds in a weld stack (50) of layered materials (30, 32) coated with coating material (28, 28', 34, 34') with zero gap at interface (38) during the welding process. An energy source (12) with multiple, separated energy beams (24, 26) extends the beam keyhole and increases the time and conditions available for vapor/gas to diffuse less violently through the molten weld pool.

A method of welding metal components together including moving a laser beam in a first direction along an interface between a pair of metal components such that in the vicinity of the focused beam, metal from each component is vaporized to produce a keyhole in a pool of molten metal. The laser beam is oscillated in a direction different from (e.g., transverse to) the first direction such that the keyhole oscillates through the pool of molten metal and molten metal fills into the keyhole as the position of the keyhole changes. A laser welding apparatus achieves oscillation of the laser beam using optical elements in the path of the laser beam, for example trepanning optics located within an expanded portion of the laser beam.

The invention discloses a fill type stirring friction plug repair welding method and a welding tool thereof, and relates to a stirring friction plug repair welding method and a welding tool thereof. The invention adopts fusion welding or friction plug welding for repair welding and causes the welding joints to reduce strength and have poor mechanical performance. The method comprises the followingsteps: (1) the material of a stirring pin is same as that of the part which repairs welding; (2) a conical preset hole is opened; (3) the size of the stirring pin is determined; (4) positioning is carried out; and (5) welding of the stirring friction plug is repaired. The welding tool is characterized in that the side wall of a clamping hole of a lower cylinder is provided with a thread through hole; a stirring body consists of the stirring pin and a stirring pin seat which are combined into a whole from top to bottom; the outer surface of the stirring pin seat is provided with a stirring pinclamping surface; the stirring pin is a cone; the stirring body is arranged in the clamping hole on the lower cylinder; the stirring pin clamping surface aligns to the thread through hole; and the stirring pin is exposed at the outside of the lower end surface of the lower cylinder. The invention is used for repair welding of the weld defects of stirring friction welding and keyholes.

A base for an electrical outlet. The electrical outlet includes a mounting screw aperture disposed along a longitudinal axis for receiving a mounting screw having a mounting screw head to mount the electrical outlet to a box. The mounting screw head has a mounting screw head diameter. The electrical outlet also has at least one socket face for receiving an electrical plug. The base includes a substantially planar backing member, the backing member including at least one aperture for receiving the at least one socket face. The base also includes a keyhole slot disposed in the backing member and having first and second keyhole slot apertures. The first keyhole slot aperture is larger than the mounting screw head diameter. The second keyhole slot aperture is smaller than the mounting screw head diameter and is disposed in the backing member at a location on the longitudinal axis and aligned with the mounting screw aperture when the base is mounted to the electrical outlet using the mounting screw. Related methods also are disclosed.

A hand power tool has a disk-shaped tool, and a clamping device for clamping the tool, the clamping device including at least one flange and a clamping unit for clamping the tool to the at least one flange and passing through the tool, the clamping unit and the at least one flange being configured on a key-end-keyhole principle, so that after passing axially through one another and subsequently being rotated counter to one another, the clamping unit and the at least one flange axially fix one another at least in one axial direction.

The invention relates to laser cutting, using multiple laser beams directed to a processing region. At least one first laser beam (2) is coupled into the work piece (1) material to generate a melt (5) and to form a keyhole (3). At least one second beam (6) is guided onto selected surface regions (7) of the melt (5). The laser energy is provided to the processing region as individual beams that may be conditioned independently. The invention has the advantage that arbitrary energy distributions can be arranged in the processing region as determined according to the requirements of the laser cutting process, rather than being limited by an inappropriate beam shape of a single high power laser beam.

Quick attachable and detachable mounting arms for ceiling fans. A first version has flat headed fasteners initially attached to one end of mounting arms, with key-hole slots in the endshield of the ceiling fan motor. The user raises the mounting arm so that the flat headed fasteners fits through the larger openings in the keyhole slots and then pulls the mounting arm outward until the arm locks in place by the smaller opening portions of the keyhole slots. Rubber type gaskets and washers help lock and hold the mounting arms in place. The flat headed fasteners can also be located on the endshields with the keyhole slots on mounting arms. A second embodiment includes inwardly deformable springably snapable fasteners that can be located on the ends of the mounting arms which can deform inwardly and expand after passing through slots on the endshield of the rotor. Alternatively, the fasteners can be located on the bottom of the endshield with the receiving slots on the ends of the mounting arms. The different versions can include guide posts for allowing only one single fastener to be needed. A third embodiment allows the inwardly bendable snapable fasteners to be removable with screws.

Apparatus for performing an open wedge, high tibial osteotomy, the apparatus comprising a wedge-shaped implant for disposition in a wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises at least one key for disposition in at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one keys comprises an interior bore for receiving a fixation screw, at least one fixation screw for disposition in the interior bore of the at least one key, and further wherein the apparatus is configured so that when the at least one fixation screw is received in the interior bore, the at least one fixation screw terminates within the bore.

A baghouse and filter assembly are provided for at least partially removing particulate matter from a gas stream. The filter assembly includes first and second filter portions to be coupled together by a coupler for establishing fluid communication between the first and second filter portions when connected. The coupler includes a first coupling portion including a side wall defining an interior passage through which the gas stream can pass in an axial direction between the first and second filter portions, and one or more flanges projecting from said side wall, the one or more flanges supporting a plurality of male studs. The coupler further includes a second coupling portion including a plurality of female keyhole-shaped receivers spaced apart for receiving at least a portion of the male studs and coupling the first coupling portion to the second coupling portion.

The invention relates to an assembled embedded type prefabricated hollow underground continuous wall. The assembled embedded type prefabricated hollow underground continuous wall is formed by splicing a plurality of wall body units; each wall body unit comprises a wall body unit body, an upper connecting assembly and a lower connecting assembly; the wall body unit body is a hollow block body; the left side face of the wall body unit body is provided with a tenon; the transverse end surface of the tenon is a rectangle provided with an externally convex side wall, and the right side face of the tenon is a groove; the upper connecting assembly is formed by a right side opening groove body which is the same as the transverse end surface of the wall body unit body, a base plate and two L-type connecting blocks; the opening groove body is encircled by a connecting steel plate with a keyhole; an opening of the opening groove body is in inserting connection with the two L-type connecting blocks; the height of each L-type connecting block is half that of the connecting steel plate; the base plate is arranged at the top surface of the connecting steel plate, and is projected out of the outer edge of the connecting steel plate; wall body main ribs are welded on the base plate; the structures and shapes of the upper connecting assembly and the lower connecting assembly are completely the same; and the up-and-down splicing of the wall body unit is realized through bolts after the upper connecting assembly and the lower connecting assembly are in inserting connection. The assembled embedded type prefabricated hollow underground continuous wall has the advantages of shortening the construction period, improving the construction quality, reducing the probability of construction accidents, and the like.

The invention relates to a magnetic resonance diffusion tensor imaging method which comprises the following steps: performing K space sparse sampling on an imaging object to obtain K space data of a diffusion weighted reference image; performing K space sparse sampling on the imaging object to obtain the K space data of a diffusion weighted image; performing share filling on the K space data of the diffusion weighted reference image and the diffusion weighted image by keyhole imaging; and performing image reconstruction on the K space data after share filling. The magnetic resonance diffusion tensor imaging method and system provided by the invention have the advantages of reconstructing complete data, shortening the scanning time, improving the data acquiring speed and achieving rapid imaging by adopting sparse sampling rapidly and continuously to acquire K space data and performing share filling under the action of the keyhole imaging technology.

An inverted U-shaped combination lock is disclosed. The lock includes a male locking mechanisms, a push ring, a hollow spindle, a sealing ring, an abutment ring, number rings, and a spring. The lock can be opened without a password by inserting a key into a keyhole prior to turning an angle of 90 degrees of the key. A ridged section of the mechanism is changed from a higher position to a lower one for disengaging the mechanism from the lock for subsequent removal of the mechanism. The lock also provides help for the user to know the forgotten password and resetting the password.

An adjustable angle handle for a surgical instrument, capable of easy adjustment to a number of angles, permitting the handle of the instrument to be grasped with one hand, and the other hand to guide the operating end of the instrument, said handle permanently affixed to an instrument, or capable if attachment to a number of instruments by means of a firm but releasable fastening to the shaft of the instrument, as with a Hudson fitting; the adjustable angle handle comprising a hand gripping portion with a distally mounted transverse pin with a key, for a keyhole in the proximal end of the instrument, or the instrument retainer shaft.