| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 433131000 | Having motor | 24 |
| 20080213722 | Handpiece With Coating For Moved or Movable Parts - A handpiece, in particular for medical, dental-medical or dental-technical purposes, has a drive mechanism for a tool to be held by the handpiece, wherein moving or movable parts of the handpiece are provided at least partly with a coating, which is chromium nitride and/or titanium nitride+gold. | 09-04-2008 |
| 20090023108 | Bearing for dental handpiece - A dental handpiece ( | 01-22-2009 |
| 20100009312 | HAND-HELD INSTRUMENT FOR DENTAL OR SURGICAL USE - A hand-held medical instrument intended to turn a movable tool at high speed, includes a clamping mechanism for fixing the tool, a motor mechanism for the driving rotation of the clamping mechanism and a coupling system ( | 01-14-2010 |
| 20080305455 | Power Transmission Device For Driving a Dental Handpiece - An elongated flexible power transmission cable couples an electric motor within a control unit with a dental handpiece. The handpiece has a rotatable tool used for performing dental work within a patient's mouth. The power transmission device comprises a generally flexible and elongated cover having a proximal attachment end, a distal attachment end and a longitudinal axis that extends between the proximal and distal attachment ends. The proximal attachment end is mountable to the control unit and the distal attachment end is mountable to the dental handpiece. A generally flexible and elongated driving cable is rotatably positioned within the cover. The driving cable is generally rotatable about the longitudinal axis and has a proximal end for coupling with the electric motor and a distal end for coupling with and driving the dental handpiece. The driving cable transmitting torque from the electric motor to the dental handpiece | 12-11-2008 |
| 20110269102 | Electric Motor for Use in a Sterilizable Dental Handpiece - In a dental, dental-medical or dental-technical handpiece, having an elongate grip sleeve there are provided at the rearward end of the grip sleeve coupling elements for the connection of the handpiece to a supply hose to be connected with a dental supply arrangement, and there are provided at the forward end of the grip sleeve a head section with a tool receiver for mounting a tool to be put into rotation. The handpiece further has an electric motor for driving a tool held by the tool receiver, which motor is completely integrated into the grip sleeve such that grip sleeve and motor form a unit. | 11-03-2011 |
| 20090004622 | Dental, Dental-Medical or Dental-Technical Handpiece With Electric Motor - In a dental, dental-medical or dental-technical handpiece, having an elongate grip sleeve there are provided at the rearward end of the grip sleeve coupling elements for the connection of the handpiece to a supply hose to be connected with a dental supply arrangement, and there are provided at the forward end of the grip sleeve a head section with a tool receiver for mounting a tool to be put into rotation. The handpiece further has an electric motor for driving a tool held by the tool receiver, which motor is completely integrated into the grip sleeve such that grip sleeve and motor form a unit. | 01-01-2009 |
| 20100261140 | Electric Motor for use in a Dental, Dental-Medical or Dental-Technical Handpiece and Stator Therefor - In an electric motor for use in a dental, dental-medical or dental-technical handpiece, having a rotatably mounted rotor and a stator surrounding the rotor, the stator is surrounded by a sheathing having an inner sleeve, on the outside of which there are arranged functionally relevant components of the stator, for example stator winding(s), return plates, and/or contact pins, and an outer sleeve embedding the inner sleeve with the functionally relevant components. | 10-14-2010 |
| 20100209872 | ROTOR FOR AN ELECTRIC MOTOR, ELECTRIC MOTOR AND DENTISTRY HANDPIECE - The rotor for an electric motor used with a dental handpiece has a shaft with a rotational axis and a magnet arranged around the rotational axis. A centering element may be rigidly connected to the shaft or constructed as part of the shaft. The centering element presses on the magnet from the outside to center it in relation to the rotational axis of the shaft. The centering element may be pressed or shrunk on to two balancing rings. The balancing rings can be pressed or shrunk on the shaft. This allows precise centering of the magnet with respect to the rotational axis of the shaft to be achieved. The pressure exerted by the centering element on the magnet counteracts centrifugal forces during rotor rotation. Particularly high speeds may be achieved without the surface of the magnet exceeding a critical tensile stress. | 08-19-2010 |
| 20110039229 | COMPUTER AIDED CANAL INSTRUMENTATION SYSTEM AND A UNIQUE ENDODONTIC INSTRUMENT DESIGN - A dental handpiece with an integrated camera and computer. Computer receives information input by dental professionals and data retrieved from integrated sensors. Computer allows pre-programmed procedural steps and information supplied by dental professional to be stored for later use. Computer transmits camera image, stored information and real-time procedural data to dental professional via attached monitor. Computer assists dental professional in handpiece set-up and procedural steps including feedback as treatment proceeds. Based on data received from the user and sensors, the computer dynamically makes adjustments to the procedural steps as well as handpiece mechanical motion, such as, but not limited to, rotational speed, rotational direction, torque, advance feed rate, and withdraw rate. | 02-17-2011 |
| 20100233651 | Electric Motor For Use in a Dentist's, Dental Surgeon's or Dental Technician's Hand Piece - In an electric motor for use in a handpiece for dentistry, dental medicine or dental technology, with a rotor held rotatably by a bearing arrangement, and a stator surrounding the rotor, a bearing arrangement has a first bearing located on an end region of the rotor, and a second bearing located on an opposite end region of the rotor, which second bearing is constructed as a movable bearing and is biased in the direction of the first bearing by a spring arrangement. The spring force of the spring arrangement within an operating region is substantially independent of the position of the movable bearing. | 09-16-2010 |
| 433132000 | Rotary fluid turbine | 14 |
| 20090004623 | SUCKBACK PREVENTION DEVICE FOR SINGLE USE HIGH-SPEED TURBINE DENTAL DRILL HANDPIECE - A suckback prevention device for single use high-speed turbine dental drill handpiece, installed at the side assembled with the drilling needle of the head housing of the high-speed turbine dental drill handpiece which comprises a head, a drilling needle ( | 01-01-2009 |
| 20100040994 | Reciprocal Reverse Rotation Endodontic File - A single use, reciprocal reverse rotation, endodontic file includes a plurality of spaced apart helical flutes with spiraled lands therebetween. The lands have an edge with a positive cutting angle when the file is rotated in one direction and a scraping angle when rotated in the opposite direction. The file provides for sequential rotation of a selected angle in a forward direction followed by rotation of a slightly less angle in a reverse direction. In one embodiment, the cross-sectional area of the flutes is concave polygonal-shaped at a proximal end of the file and square-shaped at the distal end. In another embodiment, the cross-sectional area of the flutes is convex arcuate-shaped, the lands lying normal to the central longitudinal axis of the file. The handle portion of the file may be configured for use in a rotary handpiece or for manual rotation. | 02-18-2010 |
| 20090075233 | SINGLE-USE HIGH-SPEED TURBINE DENTAL DRILL HANDPIECE - A single use high-speed turbine dental drill handpiece, comprising: a head ( | 03-19-2009 |
| 20090274992 | PNEUMATIC HANDHELD MEDICAL DEVICE WITH REDUCED NOISE - A handheld pneumatic medical device, such as a dentist handpiece, is provided for rotating a bur about an axis. Importantly, the device utilizes the boundary layer effect to transfer energy from the fluid flow to rotation of the bur. As a result, the device is operated without creating high decibel noise. Structurally, the device includes a housing defining a chamber, and a hub mounted for rotation in the chamber. When engaged with the hub, the bur passes through a distal aperture in the housing. The housing is further provided with a port for introducing a fluid into the chamber substantially tangential to the axis. Also, the device includes disks connected to the hub and substantially perpendicular to the axis. Operationally, boundary layer effect forces between the fluid flow and the disks cause the hub and the bur to rotate about the axis. | 11-05-2009 |
| 20080213723 | Medical/dental handpiece - An inventive medical/dental handpiece is characterized by including: a head part | 09-04-2008 |
| 20080318185 | DENTAL HANDPIECE - A dental handpiece is disclosed which comprises a grip section having a head section in which a treatment tool is detachably attached, and a drive section detachably connected thereto. The grip section comprises a casing having front and rear casing portions, with the front casing portion being continuous to the rear casing portion at an angle; a first rotary shaft rotatably supported in the rear casing portion, a cylindrical jacket extending from the head section and arranged and fixed in the front casing portion toward the first rotary shaft, and a second rotary shaft rotatably supported in the jacket, and operatively connected to the treatment tool at one end and to the first rotary shaft at the other end via a gear. The driving force from the drive section is transmitted by means of the first and second rotary shafts to the head section to drive the treatment tool. The jacket is provided with an engagement groove on its circumferential surface. The grip section further comprises engaging means disposed in the rear casing portion and detachably engaging the engagement groove on the jacket, wherein the jacket arranged in the front casing portion is fixed therein by means of engagement of the engagement groove on the jacket and the engaging means in the rear casing portion. | 12-25-2008 |
| 20080261172 | FLUID-OPERATED MEDICAL OR DENTAL HANDHELD ELEMENT - A fluid-operated medical or dental handheld element is disclosed, having a connecting device for connecting the handheld element to a fluid source so that a first impeller can be induced to rotate by a fluid stream to cause a tool to execute a driving motion, a fluid conducting device arranged between the connecting device and the first impeller for conveying a fluid stream away from or toward the first impeller, and a generator for generating electric power. The generator includes a second rotatable impeller that can be driven by at least a substream of the fluid stream conveyable in the first fluid conducting device. One result is more constant generation and output of power by the generator independent of the rotational speed of the first impeller, thereby insuring a more constant power supply to a power consuming device connected to the generator. | 10-23-2008 |
| 20090029312 | Handpiece and method for preventing occurence of sucking back in the handpiece - A handpiece and a method for driving the handpiece are provided in which a sucking-back problem can be prevented with a simple structure. The handpiece | 01-29-2009 |
| 20110306011 | Fluid driven dental handpiece with hydrostatic bearings - A dental handpiece uses a single airflow input to drive both a rotor and provide a hydrostatic bearing. The fluid flow in the form of compressed air is applied first to the hydrostatic bearings and then subsequently to the turbine blades of the rotor without the use of any moving mechanical parts by the design of the air passageway being more direct for the hydrostatic bearing. This passageway is the form of a manifold insert which may be mounted within the handpiece. The handpiece includes a pair of frusto-conical cages separated by a C-shaped spacer which enables precise fabrication. The frusto-conical ends of the rotor and the mating frusto-conical inner surfaces of the cages are provided with a diamond like carbon coating. | 12-15-2011 |
| 20110104636 | Air-driven rotary cutting tool - The air-driven rotary cutting tool comprising a grip part, a head part provided at a distal end of the grip portion; and a rotor of double-wheel type rotatably supported to a hollow portion formed in the head part around its rotary axis with a bearing, in which the rotor has a first turbine blade portion provided with a plurality of first turbine vanes surrounding the rotary axis and a second turbine blade portion integrally formed with the first turbine blade and having a plurality of second turbine vanes surrounding the rotary axis; the cutting tool is characterized by the first turbine vane having such a concave shape on its side seen in a direction into the rotary axis as to fall from upstream into downstream of its rotational direction of the rotor, and the second turbine vane having such a concave shape on its side as to fall into its opposite direction of the first turbine vane. According to the cutting tool of the present invention, the rotational speed of the rotor can be reduced without decreasing its rotary torque in addition to advantage in further downsizing of the head part. | 05-05-2011 |
| 20120315598 | DENTAL HANDPIECE - A dental handpiece having a head comprising a headshell and an arm portion comprising an upper body and a lower body is presented. The head rotatably couples to the upper body, and the upper body pivotally couples to the lower body. An air turbine or a gear assembly may be included in the headshell whereby a dental bur attached to the air turbine or gear assembly protrudes from the headshell. In the case of using an air turbine, flexible tubing provides fluid to spin the air turbine, thereby rotating the bur. Alternatively, a flexible shaft may connect the gear assembly to a rotary source to communicate rotary motion to the bur. | 12-13-2012 |
| 20090061384 | DISPOSABLE DENTAL HANDPIECE - A sterile, substantially maintenance free disposable dental handpiece is constructed from two shells and a center core, the center core having a flow deflector on one end. The shells are joined around the core with mating protrusions and/or tapered walls to form the body and head of the handpiece. A base is integrally-formed with the center core. The base has conduits that allow entry of light and pressurized air and/or water into the body. The head at the opposite end of the body from the base rotatably mounts an impeller assembly having an impeller shaft. The impeller shaft includes blades driven by the pressurized air. The blades can have cavities to reduce weight. | 03-05-2009 |
| 20080299514 | Hand-Held Instrument for Dental or Surgical Use - The invention relates to a hand-held instrument, for dental or surgical use, intended to rotate a rectilinear detachable tool ( | 12-04-2008 |
| 20100203472 | TURBINE WHEEL FOR A GAS OPERATED MEDICAL HANDPIECE AND MEDICAL HANDPIECE HAVING A TURBINE WHEEL, AND METHOD FOR MILLING A BLADE OF A TURBINE WHEEL - The invention relates to a turbine wheel ( | 08-12-2010 |
