144 results about "Upper tooth" patented technology

A new biofeedback modality for the treatment of bruxism. A mildly aversive, safe, liquid is inserted into, and sealed in, small, bilaterally-sleeved, polyethylene capsules. Two capsules are attached to a specially-constructed dental appliance which comfortably and securely places them between the lower and upper teeth. The appliance and capsules are worn at night or at other times when bruxism is suspected to occur. Whenever a sleeping or an awake patient attempts to brux, the capsules rupture and the liquid is released into the mouth. The liquid then draws the patient's conscious attention to, and forestalls, any attempt of teeth clenching or grinding. Variations of the method and device can be used to diagnose bruxism and to sustainably release medications and odor-masking substances into the mouth,.

The invention discloses a computer interaction type method for segmenting a single tooth crown from a three-dimensional jaw model. The method includes the steps: reading and visually displaying the three-dimensional jaw grid model; detecting anatomic characteristic points and an occlusion plane of upper teeth of a jaw in the three-dimensional jaw grid model; assigning constraint points of harmonic fields of the three-dimensional jaw grid model; calculating the harmonic fields according to constraint conditions to obtain a tooth crown segmenting border line; performing grid cutting according to the obtained tooth crown segmenting border line to obtain a tooth crown model. By the method, a tooth segmenting border can be accurately obtained, the method is simple to use, and a user interactively determines two border points on a visual view of the jaw model for a single tooth to be separated, so that the tooth crown grid model of the tooth can be accurately obtained. The method has important significance for dental orthodontics, virtual jaw surgery simulation and the like.

A circular saw blade includes a substantially circular body having a plurality of protruding tip support regions spaced around the periphery thereof, each tip support region including at least a seat for supporting a cutting tip. The tip support region may further include a substantially planar upper tooth face, a grindable tip reinforcement portion and/or a lower tip angle less than 90 degrees. A cutting tip is secured to the seat of each tip support region preferably with a top face of each cutting tip substantially parallel to and offset from an upper tooth face of each tip support region. Each cutting tip of the circular saw blade is further configured to maintain a cutting edge at a substantially constant width when material is removed from the top face thereof. A method of manufacturing a saw blade is also provided.

The invention discloses an automotive seat slide rail. The automotive seat slide rail comprises an upper slide rail body, a lower slide rail body, a spring component, a locking component and an unlocking component, wherein the unlocking component drives the locking component to move up and down to achieve locking and unlocking of the upper slide rail body and the lower slide rail body, the locking component comprises a locking sheet and a guide pin, locking tooth parts are arranged on the two sides of the locking sheet, the lower end of the guide pin is connected with the locking sheet in an anchoring mode, and the upper portion of the guide pin penetrates through a guide pin hole in the upper wall of the upper slide rail body; the spring component acts on the space between the locking sheet and the upper wall of the upper slide rail body or the space between the locking sheet and the lower wall of the lower slide rail body; when the upper slide rail body and the lower slide rail body are in a locked state, the locking tooth parts penetrate through an upper tooth window on the upper slide rail body and a lower tooth window on the lower slide rail body; when the upper slide rail body and the lower slide rail body are in an unlocked state, the locking tooth parts disengage from the lower tooth window on the lower slide rail body. According to the automotive seat slide rail, structure becomes simpler, assembly becomes easily, quality control is facilitated, cost is reduced, the weight of the whole slide rail is reduced, and the stress on the spring component from the slide rail in long-time use is effectively eliminated.

A deployment handle (112) for an implant deployment device (10) facilitates withdrawal of a sheath (18). The deployment handle (112) includes two separate actuators: a trigger (130) and a sliding actuator (330). The trigger (130) can be used to effect small step-wise movement of a carriage (120) that is connected to a sheath (18) to be withdrawn. The sliding actuator (330) can be used to effect continuous movement of a carriage (120) to withdraw a sheath (18). In order to transmit movement of either the trigger (130) or the sliding actuator (330) to the carriage (120), a flexible rack (380) is used. The flexible rack (380) includes upper teeth (390) and lower teeth (395) for engagement with the trigger (130) and the sliding actuator (330) respectively. The ability of the flexible rack (380) to bend back on itself means that unnecessary elongation of the deployment handle (112) is avoided.

The invention belongs to treatment devices of gears, and particularly relates to a gear upper tooth groove polishing device. A cross shaft is fixedly mounted on a rack, a gear is mounted on the cross shaft, and a supporting frame is hinged to the rack. A lead screw is mounted on the supporting frame, a sliding sleeve is mounted on the lead screw, a push plate is mounted on the sliding sleeve, and the free end of the push plate deeply penetrates a gear tooth groove. The lower end of the supporting frame is connected with a first connecting rod, and a vertical supporting plate is hinged to the end, away from the supporting frame, of the first connecting rod. A first rotary wheel is mounted on the vertical supporting plate, a cam is arranged on the side, away from the vertical supporting plate, of the first rotary wheel, and a second rotary wheel is arranged above the cam. An inductor is mounted on a high-pressure gun at the position, above the second rotary wheel, of the rack, the high-pressure gun is connected with a first through pipe, and the first through pipe is connected with a sand spraying box. The left end of the first through pipe is connected with a hollow rotary shaft, a plurality of sand spraying holes are formed in the rotary shaft, a hollow sand spraying wheel is mounted on the rotary shaft, and small holes are formed in teeth of the sand spraying wheels. The problem that due to the fact that the polishing process of saw teeth on a gear is uneven, chatter marks are likely to exist on the polished gear is solved.

The present invention provides a slide table-board which is used for cutter. The side way of the slide table-board does not effect the operation. The operability and cutting precision can be well maintained. On a sliding panel (1), a connecting piece (12) is provided between the middle parts of rail (3, 3) and is installed with a pinion (14) of which the axis is in the left-right direction on one hand, and on the other hand the upper surface of baseboard (2) is installed with a lower teeth bar (8) engaged with the pinion (14). The lower surface of panel (4) is installed with an upper teeth bar (18) engaged with the pinion (14). When the panel (4) and the upper teeth bar (18) slide simultaneously, the pinion (14) rolls on the lower teeth bar (8) on the baseboard (2) so that the rail (3, 3) move along with the sliding of panel (4).

A reclining device of a vehicle seat for easily locking and releasing the vehicle seat so as to increase performance of the vehicle seat and to improve quality thereof. The reclining device is easily assembled, by removing minor shortcomings that may occur during the assembly process, and enhances engagement of the locking teeth with the upper teeth when the reclining device is installed to a vehicle, so that the convenience as well as quality, strength, and durability of the reclining device are enhanced.

The invention belongs to the technical field of gear detection and relates to an upper tooth pitch measuring instrument for a large gear hobbing machine. By adoption of an upper relative measurement method, relative measurement of tooth pitch errors of straight gears, bevel gears and worm gears machined on a gear machine tool is carried out. The measurement method is free of any indexing standards, tooth pitches of tested gears are subjected to one-by-one own tooth pitch comparison according to the circumference closed principle, and an industrial controller is used as a data processing systemfor calculating single tooth pitch deviation, N tooth pitch cumulative deviations and total tooth pitch cumulative deviation. The upper tooth pitch measuring instrument has advantages that online detection of the single tooth pitch deviation, the tooth pitch cumulative deviation and the total tooth pitch cumulative deviation of the tested gears can be realized, machining conditions are adjusted according to deviation values, and time of workpiece moving, lifting and recalibration in testing can be saved.

The invention provides a stator floating iron core locating and tensioning device and a stator floating iron core installing method. The stator floating iron core locating and tensioning device comprises an engine base ring plate (12), a lower tooth support (13), an upper tooth support (6), stator iron core chips (7), a stator pressing plate (5), through bolts (1), double dove-tail bar supporting plates (9) and double dove-tail bars (10). The through bolts (1) penetrate through the stator pressing plate (5), the upper tooth support (6), the stacked stator iron core chips (7), the lower tooth support (13) and the engine base ring plate (12). Each through bolt (1) is sleeved with an insulating sleeve (8). Locking nuts (2) are arranged at the two ends of each through bolt (1) respectively. The upper end of each through bolt (1) is sleeved with a belleville spring (4) and a bolt insulating spacer (3). The two ends of the double dove-tail bars (10) are connected with the double dove-tail bar supporting plates (9) and the stator iron core chips (7) respectively. The two ends of the stator iron core chips are bonded into one, and therefore in the iron core press-fitting process, iron cores are heated after being pressed under a cold state, and then pressed again under a hot state.

The invention discloses a high voltage electric power piercing connector. The high voltage electric power piercing connector comprises an upper line voltage cover and a lower line voltage cover, wherein a gear is arranged at a middle portion between the upper line voltage cover and the lower line voltage cover, the gear is transversely provided with a fixing bolt, a left side of the gear is engaged with a lower tooth bar, a right side of the gear is engaged with an upper tooth bar, the upper line voltage cover corresponding to the lower tooth bar is provided with a tooth bar limit groove, the lower line voltage cover corresponding to the upper tooth bar is further provided with a tooth bar limit groove, a left side of a lower portion of the lower tooth bar is fixedly provided with a lower engagement cover, a right side of an upper portion of the upper tooth bar is provided with an upper engagement cover, the upper engagement cover and the lower engagement cover are respectively provided with an arc-shaped insulation sheath, and the insulation sheaths are provided with piercing blades. Compared with a mode of utilizing a traditional bolt assembly to clamp an electric power cable, the high voltage electric power piercing connector realizes clamping of the electric power cable through mutual engagement of the gear and the tooth bars, the excellent anti-loosing effect is realized, and long-term stable reliable operation is effectively guaranteed.

The invention provides a reducer, a washing machine and a washing mode thereof, and relates to the technical field of washing machines, in particular to an impeller type washing machine. An output shaft consists of an output inner shaft and an output outer shaft, a planet wheel is a dual gear, the output inner shaft is meshed with an upper tooth of the dual gear by an upper center gear, the output outer shaft is connected with the planet wheel, and an inner gear and a shell body are connected to be a whole. A barrel body of the washing machine is connected with a shell body of the reducer, an inner impeller is connected with the output inner shaft of the reducer, and an outer impeller is connected with the output outer shaft of the reducer. When washing is conducted, the inner impeller and the outer impeller conduct bidirectional and reciprocating rotation in the barrel body in the same direction and different speed, the outer impeller drives clothes to shake up and down in the barrel body, and the clothes are scattered. One power input and two power outputs can be provided, and a different washing mode can be provided, so that winding rate is reduced, and washing effect of the washing machine is improved.

A piece of multi-purpose ratchet pipe plier comprise a handle, an upper jaw clamp, a pin shaft, a torsion spring, an arc-shaped tooth surface insert block and an upper tooth surface inert block, wherein the upper jaw clam is hinged on the handle through the pin shaft, the torsion spring is arranged in the assembly slot of the handle and connect with upper jaw clam and the bottom of assembly slot in the ends, the arc-shaped tooth surface insert block is fixed on the handle by tenon, and the upper tooth surface insert block is fixed on the upper jaw clamp by tenon. The anti-skip teeth on the handle and the upper jaw clamp are disassembled and replaced, the whole plier opening can clamp the pipe through the tooth surfaces at three different directions for realizing anti-skip function.

The invention discloses a method for constituting an Internet of Things website system for the Google project glass and belongs to the field of image processing. The method for constituting the Internet of Things website system for the Google project glass comprises the steps that an original image obtained from an image reading device can be converted into a plurality of unfolded images in the geometrical or physical form, the characteristic information of each image is extracted based on the self-organizing probability scale, numeralization processing is conducted, and then an image code is generated; in order to achieve automatic function switching of the Google project glass, input information for function switching is obtained from a sensor containing at least one kind of information of the human eyeball moving information, the human eyelid turning information, the information of collision between upper teeth and lower teeth, the human head shaking information and the sound recognition information and is converted into a control signal for function switching, and then the switching function of the Google project glass is controlled; the image code generated by an image code generating part can be taken as a network entry codethrough which wireless terminals are connected with a website. The method for constituting the Internet of Things website system for the Google project glass is characterized in that webcasting media websites in new forms, social websites in new forms, online shopping websites in new forms, network retrieval websites in new forms and webpage inquiry websites in new forms can be obtained through network connection.

The invention discloses a quick disassembly mechanism for a water inlet valve. The quick disassembly mechanism comprises the water inlet valve and a quick disassembly mechanism; the water inlet valve is provided with a water inlet pipe, and at least one limiting rib is arranged at the periphery of the water inlet pipe; the quick disassembly mechanism comprises an upper tooth part and a lower tooth part which are arranged in a spacing manner in the axial direction and face to each other, and the upper tooth part is provided with at least one opening groove which yields to the limiting rib; and the limiting rib is driven to be sequentially matched with the lower tooth part and the upper tooth part by axially pushing/pulling the water inlet valve, the connection between the water inlet valve and the quick disassembly mechanism is realized when the limiting rib and the opening groove are offset, and the separation of the water inlet valve from the quick disassembly mechanism is realized when the limiting rib and the opening groove are aligned. The quick disassembly mechanism for the water inlet valve has the following advantages that a water tank is provided with a certain push-and-pull space in the axial direction only and has no need of a yielding space in the horizontal direction, so that the disassembly is convenient, and the quick disassembly mechanism is applicable to any water tank, particularly small water tanks.

A transmission apparatus for use in a stack of data library units, the stack comprising a lower data library unit and an upper data library unit, each data library unit of the stack comprising a plurality of upright frames, the transmission apparatus comprising a tray for transporting a tape cartridge; a plurality of positioning pinions rotatably attached to the tray; a plurality of racks each disposed on each of the plurality of upright frames and configured to be engaged by the corresponding plurality of positioning pinions for vertical positioning of the tray within each data library unit; a plurality of partial racks each comprising an upper tooth and a lower tooth disposed adjacent the plurality of racks at each of the plurality of upright frames, the upper tooth being disposed adjacent a lower end of the frame of the upper data library unit and the lower tooth being disposed adjacent an upper end of the frame of the lower data library unit; a plurality of cross-over pinions each rotatably attached to the tray and disposed co-axially with each of the plurality of positioning pinions, each cross-over pinion having a tooth profile configured to engage each of the partial racks for effecting movement of the tray between the lower data library unit and the upper data library unit.

The invention provides a pressure type optical fiber micro-change sensor, which can solve the problems of inaccurate measurement and easy failure of a displacement sensor at present in a high temperature and strong electromagnetic environment. The pressure type optical fiber micro-change sensor is realized according to the following technical scheme: light signals modulated by a signal modulationportion are divided into two beams through optical fiber coupling, one beam of light signals directly reaches a photoelectric detector through an optical fiber ring to serve as a reference light pathof an optical fiber light path, the other beam of light signals enters a lower tooth groove reflecting angle of a lower moving toothed plate reflecting mirror through a first collimating lens and is reflected to an upper tooth groove reflecting angle of an upper fixed toothed plate reflecting mirror through a completely reflecting mirror formed by tooth grooves, the incident light is reflected formultiple times by multiple tooth angles and enters a photoelectric detector pd2 connected through an optical fiber from a second collimating lens, and the light path serves as a measurement light path. The displacement change will cause the phase change of the light signals of the measurement light path relative to the reference light path, and the displacement change can be demodulated through detecting two phase variations by a phase comparator.

A longitudinal separation adjustable rod guider is disclosed, and relates to a guider, in particular to a longitudinal separation adjustable rod guider. The invention solves the problems that the contact area of the screw and guiding of an adjustor of the longitudinal separation before guiding the bar is small so as not able to fasten the guider and the guider is loosened always. The longitudinal separation adjustable rod guider comprises a nose cone, a guiding assembly, a guide slot, a bracket assembly, a compressing screw, an elastic cylindrical pin, an upper tooth piece and a lower tooth piece. The bracket assembly consists of an upper beam, a lower beam and a vertical plate. The upper and lower beams are respectively connected fixedly with the upper and lower ends of the vertical plate as a whole. The guiding assembly is installed on the upper surface of the lower beam. The nose cone is connected with one end of the guiding assembly while the other end of the guiding assembly is connected with the guide slot. The lower tooth piece is installed on the upper surface of the guiding assembly, the compressing screw penetrates through the upper beam up and down and the upper tooth piece is connected with the lower end of the compressing screw through the elastic cylindrical pin. The invention is used to ensure that the rolled pieces move along a correct in-and-out roller.

The invention discloses an anti-theft floor lock for a roller shutter door. The anti-theft floor lock is characterized by comprising a lock body, a lock cylinder, a tension spring, a stroke transmission mechanism, a locking mechanism and an anti-pull-back mechanism, wherein the lock cylinder is arranged in the middle of the lock body; the stroke transmission mechanism comprises a lock rod, a firsttransmission lock rod and a second transmission lock rod, wherein the lock rod comprises an upper tooth lock rod and a lower tooth lock rod, and the upper tooth lock rod and the lower tooth lock rodare arranged on the upper portion and the lower portion of the lock cylinder respectively and meshed with a lock cylinder gear; and the lock rod is connected with one end of the first transmission lock rod, the second transmission lock rod is connected with the other end of the first transmission lock rod, and the anti-pull-back mechanism is arranged on one side of the joint of the lock rod and the first transmission lock rod. The anti-theft floor lock for the roller shutter door is high in applicability, excellent in prying resistance, convenient to use, low in failure rate and convenient todisassemble, assemble and maintain.