7325 results about "Gear tooth" patented technology

Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the adapter assembly includes an adapter knob housing configured and adapted for connection with the surgical device and to be in operative communication with each of the at least one rotatable drive shaft of the surgical device, the adapter knob housing defining a lumen extending longitudinally therethrough and a ring gear formed in an inner surface of the lumen of the adapter knob housing, the ring gear defining an internal array of gear teeth which are engaged with a spur gear of a rotatable drive shaft. The adapter knob housing may be a unitary member and may be formed of plastic.

The present invention relates to an expandable prosthetic implant device for engagement between vertebrae generally comprising an inner member, outer member, gear member and a locking assembly positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.

An expandable spinal prosthesis is disclosed, including a first surface having a first plurality of tissue anchors; a second surface opposite the first surface, the second surface having a second plurality of tissue anchors; a first wall between the first and second surfaces, and a second wall between the first and second surfaces, the second wall located opposite the first wall and being movable with respect to the first wall. A surgical instrument is also provided, including an elongated shaft defining a proximal end and a distal end; a first prosthesis engagement element accessible from the proximal end and extending from the distal end; and a second prosthesis engagement element accessible from the proximal end and extending from the distal end, the second prosthesis engagement element including a plurality of gear teeth.

A planetary gear set includes a sun gear including a first set of gear teeth having a helix angle and second set of gear teeth formed as a single unit with the first set of gear teeth and having a second helix angle of opposite hand relative to the first helix angle. A ring gear includes a third set of gear teeth having a third helix angle, and fourth set of gear teeth and having a fourth helix angle of opposite hand relative to the third helix angle. Planet pinions, each include a fifth set of gear teeth having a fifth helix angle, and sixth set of gear teeth formed as a single unit with the fifth set of gear teeth and having a sixth helix angle of opposite hand relative to the fifth helix angle.

The present invention relates to an expandable implant for engagement between vertebrae generally comprising an inner member, outer member, and gear member positioned coaxial with respect to each other such that the inner and outer members are moveable relative to each other along an axis. The gear member is axially fixed to the outer member and freely rotatable with respect to the outer member and the gear member threadedly engages a threaded portion of the inner member to translate inner member along the axis. The implant is configured to engage the vertebrae in a predetermined alignment and the gear member includes gear teeth exposed to the exterior and configured to be accessible by a tool member at a plurality of angular positions around the perimeter of the implant device.

A pair of spherical gears connects the intersecting shafts of a CV-joint. One gear has internal teeth, and the other has external teeth. The gear design is based on pitch circles that are great circles on theoretical pitch spheres that are concentric and have identical radii. The gear teeth are preferably straight-sided. Individual smaller construction spheres are arranged in a circle so that the points of tangency between successive smaller spheres are all positioned on the circumference of the identical pitch circles of the gears and are all also positioned on the respective pitch circles of each successive smaller construction sphere. The straight-sided tooth faces of the teeth of the internal gear are preferably cone shaped. The preferred embodiment uses six teeth on each gear, and the gears, while rotating at high speeds under load, can intersect throughout a continuous maximum range of 60° or more.

Disclosed is a tubular-type digital door lock with an integrated driving unit-deadbolt structure. The door lock includes: a driving unit having a driving motor, and a group of gears associated with a spindle of the driving motor; a shaft unit having a rotary part with gear teeth formed on the periphery thereof, and an arm extending from the rotary part; a deadbolt slider formed with a deadbolt at a side thereof, the deadbolt slider being moved in cooperation with the shaft unit; a locking detection sensor coming into contact with a side of the arm so as to determine whether the deadbolt is locked or unlocked; a main control board receiving a signal from the locking detection sensor so as to operate the driving motor; and a main body including the driving unit, the shaft unit, the locking detection sensor, and the deadbolt slider.

A multipoint sliding door latch including a housing, a pair of vertically spaced upper and lower hooks mounted in the housing for movement between a retracted, unlatched position within the housing and an extended, latched position extending out of the housing for engagement with a keeper structure of an associated jamb, upper and lower rotary actuators mounted in the housing in vertically spaced side by side relation between the upper and lower hooks, an upper link mechanism interconnecting the upper actuator and the upper hook and operative in response to rotary movement of the upper actuator to move the upper link from an unlatched to a latched position, and a lower link mechanism interconnecting the lower actuator and the lower hook and operative in response to rotary movement of lower actuator to move the lower hook from an unlatched position to a latched position. The latch further includes a rack positioned between the actuators and defining gear teeth on opposite parallel faces thereof. Each actuator includes pinion gear teeth and the pinion gear teeth of the upper actuator meshingly engage the gear teeth on one face of the rack and the pinion gear teeth on the lower actuator meshingly engage the gear teeth on the opposite face of the rack. The rack comprises a cylindrical member having a series of circumferential ribs defining the gear teeth and the cylindrical rack member is mounted in the housing for rotary movement about its central axis.

A method of producing a gear from a metallurgical powder includes molding at least a portion of the powder to provide a gear preform. The gear preform is sintered and hot formed, and subsequently may be carburized. The gear preform is resintered and cooled at a cooling rate suitable to provide a bainitic microstructure in at least a surface region of the preform. The gear teeth of the preform may be shaved to, for example, adjust dimensions, and enhance dimensional uniformity.

A synchronous moving double-axis hinge comprises a support member, a first transmitting assembly and a second transmitting assembly mounted onto the support member, and a transmission element installed on the support member. The first transmitting assembly includes a first transmission shaft and a first helical gear. The second transmitting assembly includes a second transmission shaft and a second helical gear. The transmission element includes a hinge pin and a driven helical gear. The driven helical gear has a first engaging zone to engage with the first helical gear and a second engaging zone to engage with the second helical gear. The hinge pin has a third extension axis crossing with a first extension axis of the first transmission shaft and a second extension axis of the second transmission shaft. Thus the crossed helical gears can effectively amplify the contact among the gear teeth to make transmission steadier.

A device for processing medicinal materials for the production of decoction pieces of traditional Chinese medicine with the function of dust removal and drying, comprising a shell, a through hole is opened in the middle of the top of the shell, and a lifting plate passes through the through hole, and the upper left side wall of the lifting plate is fixedly connected There is a rack, and the top of the housing on the left side of the lifting plate is fixedly connected with two support frames, and the top of the support frame is rotatably connected with a first rotating shaft, and one end of the first rotating shaft is fixedly connected with the output shaft of the first motor, and the first rotating shaft The upper part is fixedly connected with a half gear, and half of the gear teeth are arranged on the half gear, and the half gear is meshed with the rack. The invention has the beneficial effects of ensuring the uniformity of slice thickness, making the processing quality of medicinal materials better, meeting the requirements of production specifications, reducing the quality instability during manual slicing, and having certain application value; at the same time, it can also be processed The adsorption of dust ensures the life safety of the operators; the drying device is used to fully dry the sliced ​​medicinal materials.

A bicycle chainring is formed from a first member and an second member. The first member includes a center rotational axis, a crank attachment portion with a plurality of chainring attachment openings and an annular tooth portion with a plurality of chain engaging gear teeth. The second member disposed around the center rotational axis and is fixedly attached to overlie at least one of the crank attachment portion and the annular tooth portion to reinforce the first member without obstructing access to the chainring attachment openings.

A rotating stream sprinkler of the type having a rotatable deflector with spiral vanes engaged by one or more water jets for imparting a rotary drive torque to the deflector, which converts the jets into a plurality of relatively small outwardly projected water streams swept over the surrounding terrain to irrigate adjacent vegetation. The sprinkler includes a speed governor having a turbine driven orbiter with first and second gears meshed respectively with a stator gear and a driven gear having different numbers of gear teeth, wherein the driven gear is carried by the deflector for rotation therewith. The turbine rotatably drives the orbiter on an eccentric axis, to react against the stator gear and thereby rotatably drive the driven gear and deflector with a substantial speed reduction. The speed governor thus regulates deflector speed for slowly sweeping the projected water streams over the adjacent landscape.