181results about How to "Reduce play" patented technology

A medication injector apparatus such as an injection pen. The injection pen includes a resettable, cartridge plunger drive assembly including an axially floating nut, a cartridge plunger engaging screw, and a drive clutch movable with the nut and which when rotated causes the screw to screw through the nut. When a cartridge assembly is mounted to the pen base, the floating nut and drive clutch are shifted proximally such that the drive clutch is in torque transmitting engagement with a rotatable drive member of the pen, such that rotation of that drive member results in drive screw advancement through the nut in the distal direction. When the cartridge assembly is not mounted to the pen base, the floating nut and drive clutch are biased distally to disengage the drive clutch from torque transmitting engagement with the rotatable drive member and to thereby allow the drive screw to be reset proximally through the nut to a position more retracted within the pen base. The injection pen also may include an injection clicker assembly having a collar arranged coaxially on a drive sleeve and which oscillates axially on the drive sleeve that rotates during medication dispensing to provide an audible clicking sound that indicates injecting use of the pen. The injection pen also may include a doseable quantity identifier that uses a rotational matrix and a sensor for electrically sensing the arrangement of the dose setting mechanism of the pen, which identifier may be part of a therapeutic dose indicating system that utilizes a cartridge recognizer to recognize a concentration of medication so as to allow an automatic determination of a therapeutic dose. The injection pen further may include an assembly for selectively rotating a drive sleeve of the pen, which assembly has a dial that rotates out during dose setting and which translates in without rotation during dose injecting.

Customized low force orthodontic arch wires include a core wire (102) formed of a shape memory material and a plurality of bracket engagement blocks (104) disposed in spaced apart relationship along the length of the core wire (102). The particular position of each engagement block (104) along the length of the core wire (102), as well as the length and curvature of the core wire (102), are customized for the particular patient on which the arch wire is to be installed. A physical or electronic custom model of the patient's dental arch is obtained. The customized arch wire is then fabricated according to the specifications determined by reference to the custom model of the patient's teeth.

An apparatus is provided for releasably coupling a drawer to a rail, which can be pulled out in a longitudinal direction, of a drawer pull-out guide. The apparatus has a holding part which interacts with a mating holding part in the coupled state in order to establish the releasable connection. At least that region of the holding part which comes into contact with the mating holding part is made flexible, preferably by attaching a flexible piece of material, so that any longitudinal play of the drawer which may occur in relation to the rail can be compensated.

An eye shield attachment can be used in combination with a safety helmet. This helmet has a front brim continuous with a rim extending along each opposite side of the safety helmet to a pair of rim slots in the helmet's rim. The attachment has a pair of frames that can removably attach to the pair of rim slots in the helmet. The frames each have a fastening member that is lockable onto a corresponding one of the rim slots and adjustable to accommodate various depths in the rim slots. A support structure attached to the pair of frames extends along the rim toward the front brim. A front lens and corrective glasses may be attached to the support structure. A pliable bead may be attached to the front of the support structure and extend rearwardly to engage a wearer's forehead.

Low force orthodontic arch wires (100) include a core wire (102) formed of a material having shape memory that extends along a generally curved arch wire axis between a first end (102a) and a second end (102b). The arch wire (100) further includes a plurality of bracket engagement blocks (104) disposed in spaced apart relationship along the length of the core wire (102). Each engagement block (104) is configured for placement within the slot of a corresponding orthodontic bracket with which it works to move the teeth in a desired direction. The engagement blocks (104) are advantageously enlarged relative to the core wire (102), providing for better engagement and reduced play between any given engagement block (104) and its corresponding bracket slot as compared to if the engagement blocks (104) were not present. The engagement blocks (104) may be disposed relative to the core wire (102).

There is provided a child car seat capable of preventing a seat body from being unintentionally moved to a turning position. The child car seat includes a pedestal and a seat body that can be slid with respect to the pedestal. A plurality of reclining positions and a turning position are included in a range within which the seat body can be slid. The seat body includes a retractable projecting member projecting toward the pedestal, and an operation member connected to the projecting member. The seat body can be held in the respective positions when the projecting member is engaged with the pedestal. An operation amount of the operation member, which is required for sliding the seat body between the reclining positions, is smaller than an operation amount of the operation member, which is required for sliding the seat body from the reclining position to the turning position.

The invention relates to a welding machine, particularly to an automatic straight pipe flange welding machine which is suitable for both plug-in type flange assembly type welding and butt-joint type flange assembly welding. The automatic straight pipe flange welding machine comprises a base, wherein base guide rails are arranged on the base, a trolley base is arranged on the base guide rails, a control system is arranged on one side of the trolley base, a welding torch machine is arranged on the trolley base and comprises a longitudinal adjusting mechanism, a lateral adjusting mechanism, an inner welding torch mechanism, an outer welding torch mechanism and a roller adjusting mechanism, wherein the inner welding torch mechanism consists of an inner welding torch upright post device and aninner welding torch device, and the outer welding torch mechanism includes an outer welding torch upright post device and an outer welding torch device. The automatic straight pipe flange welding machine has high automatic degree, improves welding efficiency, reduces grinding time and waste of welding materials, guarantees welding quality, and attractive formation of weld seams, is convenient to operate, saves labor, and lightens labor intensity.

There is provided a child car seat capable of preventing a seat body from being unintentionally moved to a turning position. The child car seat includes a pedestal and a seat body that can be slid with respect to the pedestal. A plurality of reclining positions and a turning position are included in a range within which the seat body can be slid. The seat body includes a retractable projecting member projecting toward the pedestal, and an operation member connected to the projecting member. The seat body can be held in the respective positions when the projecting member is engaged with the pedestal. An operation amount of the operation member, which is required for sliding the seat body between the reclining positions, is smaller than an operation amount of the operation member, which is required for sliding the seat body from the reclining position to the turning position.

A device (13) for detecting the breakage of a primary path in a flight control actuator, said actuator having a primary path (1) comprising a rotary hollow screw (2), a secondary path (10) comprising a safety rod (3) that reacts the load passing through the screw (2), said device (13) being characterized in that it comprises a position sensor (15), connected to the screw (2), to measure information representative of the angular position thereof, and a disconnection system (17) able to disconnect the screw (2) position sensor (15) in the event of relative movement of the rod (3) with respect to the screw (2) if there is a break in the primary path (1).

A vehicle power transmission device having a structure with a carrier of a planetary gear device brought into spline fitting with a case that is a non-rotating member to stop rotating and a ring gear of the planetary gear device rotatably supported by the case via a bearing, is provided with a play reducing device that presses the carrier against the case to reduce a play in thrust direction formed between the carrier and the case.

The invention relates to a beer bottle and a fabrication method thereof. The beer bottle is fabricated by taking desulfurization gypsum of a thermal power plant as a raw material. According to the beer bottle and the fabrication method, a by-product, namely the desulfurization gypsum, for flue gas desulfurization of the thermal power plant serves as a clarifying agent to substitute fluorite and anhydrous sodium sulphate, so that the cost is lowered effectively, corrosion to fire-resisting materials is reduced, the service life of a kiln is prolonged, emission of fluoride is decreased, and pollution to an atmosphere is reduced. The desulfurization gypsum of the thermal power plant substitutes partial toxic raw materials, including fluoride such as the fluorite, so that the glass melting and clarification capacity can be improved, the glass component structure can be changed, the melting temperature and melt viscosity can be reduced, the thermal expansion coefficient can be reduced, the glass transparency can be enhanced, the thermal shock resistance and acid resistance of a product can be improved, and the glass strength can be improved; in addition, the corrosion of the clarifying agent such as the fluorite to the kiln is eliminated, volatilization of fluoride is reduced, atmosphere pollution is avoided, and an environment is protected.

Precision movement of a table part by movement of a nut over a lead screw is achieved by a less rigorously precise structure than has heretofore been thought necessary. To that end the screw is fixedly supported only at one end and is rotatable in bearings mounted within a rigidly mounted tube which at least partially surrounds the screw, play in those bearings is minimized by exerting axial pressure thereon, the nut is especially designed to engage the screw only at separated points, thereby to reduce friction and play in the nut, and the nut is connected to the moveable table part by structure passing through an opening in the tube and resiliently engaging the moveable table part to compensate for displacement and play.

An eye shield attachment can be used in combination with a safety helmet. This helmet has a front brim continuous with a rim extending along each opposite side of the safety helmet to a pair of rim slots in the helmet's rim. The attachment has a pair of frames that can removably attach to the pair of rim slots in the helmet. The frames each have a fastening member that is lockable onto a corresponding one of the rim slots and adjustable to accommodate various depths in the rim slots. A support structure attached to the pair of frames extends along the rim toward the front brim. A front lens and corrective glasses may be attached to the support structure. A pliable bead may be attached to the front of the support structure and extend rearwardly to engage a wearer's forehead.

A method for adjusting or altering the play between brake linings and friction surfaces of motor vehicle brakes by means of controllable and adjustable lifting and return movements of the brake linings is disclosed. In this case, the play is altered as a function of the actuation of the gas pedal, such that the play is reduced if the pressure exerted on the gas pedal is reduced and / or if the gas pedal is released. The device for adjusting or altering the play between brake linings and friction surfaces of motor vehicle brakes contains a brake control / brake regulator (4) for acquiring and processing electronic signals delivered by a brake pedal sensor (2) and, if so required, other sensors, and for actuating electromechanical brake actuators (5). The brake control / brake regulator (4) of the device also processes data or signals pertaining to the status of the gas pedal actuation in such a way that the brake actuators (5) reduce the play if the pressure exerted on the gas pedal is reduced and / or if the gas pedal is released.

A balancing machine with a clamping device for mounting a vehicle wheel on a balancing machine shaft. The clamping device has a mounting flange (7) with multiple recesses (13) for receiving at least one centering pin (8). To reduce centering errors and / or balancing errors because of play between the centering pin (8) and the mounting flange (7), e.g., due to manufacturing tolerances or wear, the centering pin has an elastically deformable circumference (21) which in its operating position is in contact with a wall surface (25) of the mounting flange (7) bounding the recess (13). The circumference (21) can be either hydraulically or mechanically deformable. In addition, the invention also relates to a balancing machine having a mounting flange (7) having a central opening for axial guidance on a shaft. To equalize any play between the mounting flange (7) and the shaft, the opening is bounded by an elastically deformable wall area which in the operating position of the mounting flange is in contact with the shaft.

Disclosed is a slide locking mechanism for a seat, which comprises at least five locking pieces, a plurality of first latch portions and a plurality of second latch portions. An opening width of a hole of each of the first latch portions in a longitudinal direction of a lower rail is equal to a width of each of the locking pieces in the longitudinal direction, and an opening width of a hole of each of the second latch portions in the longitudinal direction is greater than the opening width of each of the holes of the first latch portions. The first latch portions and the second latch portions are alternately arranged along the longitudinal direction.

A saw having a power unit with a drive component and a housing for the power unit with a frame. A bar on the housing guides movement of an operatively positioned cutting chain driven by the drive component in an endless path. The bar is movable guidingly in opposite directions in a predetermined path relative to the housing to thereby vary tension upon an operatively positioned cutting chain. A bar fixing assembly has a knob that is turnable around a first axis relative to the housing in: a) a first direction to a tightened state; and b) a second direction to a loosened state. A first assembly resiliently bears against the knob to at least one of: a) inhibit turning of the knob around the first axis; b) provide a sensory indication to a user grasping and turning the knob that the knob is moving around the first axis; and c) reduce play in the knob.

Anchorage devices are disclosed for use in an anchorage system, especially for vehicle seats, using a floor track having a longitudinal channel whose opening has opposed lips with a series of periodic circular cut-outs. The anchorage device has enlarged slidable feet (104) which are insertable into the opening of the track channel at the cut-outs, and when slid along are held captive beneath the lips of the track. A releasable locking mechanism is provided for locking the device longitudinally to the track, so that the feet (104) can be held in the captive position. Preferably the device has an elongate body, with the locking mechanism operated by a lever at one end. The top surfaces (143) of at least some of the feet (104) are longitudinally inclined relative to the longitudinal direction. When slid to the captive position they come into contact or near contact with the underside of the track lips, reducing or preventing rattle relative to the track.

The invention relates to a sintered gear (1) with teeth (2), between which a tooth base (5) is respectively formed. The tooth base (5) has a surface which is subjected to a thermo-mechanical finishing process and a surface roughness with an arithmetical mean roughness value Ra, measured in accordance with DIN EN ISO 4287, selected from a range with a lower limit of 0.2 μm and an upper limit of 2.0 μm.

A device for pressing a rack onto a pinion engaging the rack, more particularly for a steering system of a motor vehicle, comprises a pressure piece which is slidably guided in a housing and which is loaded in the direction of the rack, and an adjusting device. Devices made of metal are known from the prior art, which, however, generate excessive noise emissions during operation. Therefore, the pressure piece is made of plastic and the adjusting device is made of metal and / or plastic.

Support or micromanipulator (100) for a surgical tool (20) comprising a complaint mechanism (1) providing direct support to the surgical tool (200), a positioning mechanism giving support to said complaint mechanism, and an attachment mechanism giving support to said positioning mechanism. The complaint mechanism (1) is made of a complaint material and allows three or four degrees of freedom to the movement of the tool (200). The positioning mechanism is located between the attachment mechanism and the complaint mechanism (1) and allows positioning of the same with six degrees of freedom. The attachment mechanism fastens the assembly to a surface of the surgical intervention region. The micromanipulator (100) is especially useful for practicing surgical interventions in the cochlea (performing cochlear implants, obtaining samples, etc), or other interventions for which high precision with the tool (200) is required.

The invention discloses a hedge trimmer head, and relates to the technical field of hedge trimmer tools. The hedge trimmer head comprises a casing, one end of the casing is provided with an opening, at least two rotating cutters are installed in the casing, the rotation directions of the two rotating cutters are opposite to each other in the feeding direction, the end face, opposite to the opening, of the casing is provided with a discharging port, and the discharging port is located between the two cutters. The hedge trimmer head solves the problems that in traditional technologies, since multiple cutters are in single contact with hedges for cutting, combined cutting cannot be formed, so that the throwing direction of branches is not fixed, and partial power is wasted; the branches are thrown on a highway pavement under the rotary cutting function of the cutters, and vehicles driven at high speed are influenced; broken branches obtained after trimming need to be manually broken off and cut off for the second time to facilitate bagging.

In a two-axle drive system for holding and moving large sunlight-absorbing, concentrating or reflecting surfaces about an azimuth axis and an elevation axis, a first gear unit which is driven by a first drive is provided for a rotational movement about the azimuth axis, and a second gear unit which is driven by a second drive is provided for a rotational movement about the elevation axis, at least one gear unit includes a spur gear stage with conical spur gear toothing, and the associated shaft is displaceable along its longitudinal axis. High accuracy is obtained as a result.