Matches 1 - 50 out of 82 1 2 >
Match Document Document Title
7611315 Motor element, in particular medical handpiece with a collet chuck  
In the case of a motor element, in particular of dental technical handpiece or a motor spindle, which at least in its front region has an elongated shank, rotatably mounted in which there is a...
7303394 Hand-held piece for dental or surgical use including a resilient clamp  
In a hand held piece for dental or surgical use comprising a resilient clamp ( 20 ) for holding the cylindrical shank ( 16 ) of a tool, the height of the head ( 3 ) of the piece can be reduced...
7258547 Press-type bit-holding mechanism of a dental high-speed handset  
A press-type bit-holding mechanism of a dental high-speed handset, including a hollow rotary shaft, a push button accommodated in the hollow rotary shaft and a holder barrel also accommodated in...
7214060 Handpiece for dental or surgical use  
At the front, a handpiece ( 1 ) has a clamp ( 10 ) fitted to tightly grip the shank of a removable tool housed in guide holes ( 23, 25 ). The clamp has two or more levers ( 26 ) attached to an...
7137633 Wrench-free manual chuck turbine  
A manual chuck includes a turbine having a centrally disposed aperture and a spindle including an elongated shaft portion positionable into the aperture in a substantially vertical direction. The...
6821120 Dental handpiece with tool holder  
A dental handpiece is disclosed, which includes a tool holder for receiving and detachably holding a dental treatment tool therein, and a tubular compressor disposed around the tool holder. The...
6209886 Resecting tool with independent variable axial extension for tool implements and guide sleeves  
A resecting tool contains a rotatable chuck inside a base for engaging the drive shaft of a motor. The chuck extends into a tubular casing that has an outer actuator sleeve. The sleeve is limited...
6155826 Grip chuck spindle assembly for a dental handpiece  
The grip chuck spindle assembly is used to hold burs and drills in dental high speed handpieces. The grip chuck spindle assembly consists of three parts. An outer spindle which is hollow having...
5911578 Head assembly for a medical handpiece  
A head assembly for a medical handpiece includes a head housing and a rotor spindle contained in the housing. The spindle defines a longitudinal through-bore with an internal screw thread. An...
5810588 Clamping device particularly useful for dental handpieces  
A clamping device for clamping a rodlike member to a housing, particularly a dental tool to a handpiece, includes a tapered sleeve and a tapered collet received within the tapered sleeve, both...
5779474 Sudden stop mechanism and air-gap seal for dental handpiece  
A high speed air-driven powerhead in a dental handpiece includes an automatic chuck with outside surfaces protection from overheating. An autochuck release push button on the back of the powerhead...
5730596 Dental instrument holder  
A dental instrument holder (10) comprises a clamping sleeve (28) having two cylindrical annular closed bearing regions (50, 52) axially spaced apart is arranged in the driven hollow shaft (22)...
5688122 Chucking device for a dental tool  
A chucking device for a dental tool in a dental handpiece or angle head includes a clamping sleeve with resilient tongues. The resilient tongues of the clamping sleeve are arranged at a distance...
5653453 Collet chuck  
An object of the present invention is to provide a collet chuck in which a chuck section of a collet is so formed as to provide a greater chucking force when the collet chuck is turned. To...
5591028 Dental cutting tool holder  
A dental cutting tool holder which prevents the occurrence of sliding between the cutting tool and collet chuck at high-speed rotation, and prevents dislocation of the cutting tool securely,...
5518398 Dental handpiece having rotatable contact member  
A dental handpiece contains a tool for dental treatment operation, tool holding members for detachably and rotatably holding the tool, tool detachment members for abutting against the tool holding...
5478093 Surgical handpiece  
A handpiece for use in small-scale surgery and microsurgery, for example, oral surgery or surgery in the ear, nose and throat area includes a handpiece sleeve and a collet chuck which is rotatable...
5383785 Push-button operated chucking device for a dental angle piece  
A chucking device for holding a dental tool by a collet chuck with collet chuck sleeve, wherein the collet chuck can be released by a push button against the force of clamping spring. The collet...
5254004 Self-tightening chuck for dental tools  
A rotary dental drive tool has a rotatable driving member which is connected to a working tool via a self-tightening chuck, the rotatable driving member rotating in a clockwise direction during...
5252067 Handpiece for dental medical treatment  
The present invention provides a handpiece for dental medical treatment in which a head portion encasing therein an air turbine is detachably mounted on a handpiece body whereby the handpiece body...
5165896 Clamping mechanism for a dental tool  
A clamping arrangement for clamping a cylindrical shaft of a tool in a dental handpiece includes a clamping sleeve having resilient tongues for gripping the cylindrical shaft and being capable of...
5074788 Device for preventing intrusion of foreign matter into dental handpiece  
A device for preventing intrusion of foreign matter into a dental handpiece includes an end cap secured to a bur sleeve for rotation in unison with the bur sleeve. Around the end cap, there are...
5074789 Chucking device for dental handpiece  
A chucking device for a dental handpiece includes a cutting tool, a collet having a plurality of slits to permit the cutting tool to be received and attached in position in the collet, a rotational...
4874314 Socket to clampingly hold dental tools  
A socket, which receives a tool having a cylindrical shaft and which is mounted for rotation to rotate the tool, has an outer sleeve which receives a clamping sleeve and a ram for engaging a first...
4844070 Changeable scalpel blade and chuck assembly  
A scalpel is provided including a chuck shaft having a diametric slot at its front end into which the rear end of a blade is inserted. The blade is provided with a cylindrical collar intermediate...
4781589 Clamping arrangement, especially for dental instruments  
A clamping arrangement, especially for the clamping or gripping engagement of dental implements, consisting of a receiving sleeve which is rotatably supported in a handpiece and is connected with a...
4773856 Device for actuating a tool fastening and releasing mechanism  
A device for releasing a tool from a tool fastening mechanism of a dentist's handpiece comprises a push-piece that is held in an outer, inoperative position by a spring, and a slide mounted on a...
4690641 Contra-angle or turbine head of a dental handpiece  
A chuck for receiving a plain shank of a dental burr is rotatably mounted in the head of a dental handpiece and is driven by a pinion or by turbine vanes. The chuck comprises a sleeve adapted to...
4611990 Dental handpiece construction  
A dental handpiece grips a removable dental tool by teeth within the end of a resilient quill carried within the spindle of said handpiece and when rotated in one direction by the handpiece turbine...
4595362 Handle  
A screw (22) having the circumference of its head (23) toothed like a pinion firmly holds the cylindrical shank of a rotary tool in position in a slotted sleeve (17). A rack (25) on the front end...
4595363 Dental handpiece having means for opening and closing a chuck  
A device for opening and closing a chuck for a dental handpiece has a handle portion and a powerhead assembly including a hollow driving shaft having, adjacent to its outer orifice, a forwardly...
4536157 Lever actuated chuck mechanism for dental handpiece  
In a dental handpiece, a drawback bur chuck actuable to open by a cam lever mounted atop the handpiece head and acting axially downward on the chuck against a spring which urges the chuck upward...
4525144 Dental attachment  
An attachment component is provided to allow a vibratory-type dental tool to use low cost, disposable surgical blades. The attachment component includes a collet member having a slot into which the...
4493645 Device for opening and closing a chuck for a dental handpiece  
A device for opening and closing a chuck for a dental handpiece has a handle portion and a powerhead assembly including a hollow driving shaft having, adjacent to its front end, a fowardly...
4436512 Device for fixing drill bits into the head of air motors for hand-held dentists' tools  
Device for fixing drill bits into the head of air motors for hand-held dentists' tools, of the type incorporating a clip in the rotor inside which the shank of the drill bit is inserted. The fixing...
4400158 Control release for a tool grip for a dental handpiece  
A dental handpiece has a hollow main body enclosing a central rotating spindle equipped with tool grip means adjacent its forward end; spring means effects axial movement of the spindle in an...
4330278 Endodontic flow-through ultrasonic instrument holder device  
The invention is an improved endodontic apparatus device for holding instruments, particularly endodontic drill files that are energized and vibrated by ultrasonic means. The invention also...
4281988 Dental handpiece  
A dental handpiece includes a drive shaft rotatably supported interiorly thereof, the drive shaft being hollow at least at the operating end thereof and having an internal thread; and a tubular...
4279597 Chuck assembly for dental handpieces  
An improved positive-grip chuck assembly, particularly suitable for use with high-speed air-driven dental handpieces, in which a tubular chuck has a radially-flexible bur-clamping section provided...
4203222 Automatic chuck for drill  
A surgical tool has a pneumatically driven rotor motor, a source of air under pressure to drive the motor, an output system for receiving rotation from the motor and transmitting it to a bur and a...
4198754 Dental turbine spindle assembly  
A dental turbine spindle assembly has a housing in which a pair of bearing supports are disposed concentric with an axis. A pair of bearings are disposed on the supports. A hollow spindle...
4188725 Dental hand-piece with an air turbine  
A dental hand-piece with an air turbine wherein a collet chuck holding a cutting tool spindle, a clamping member enough to clamp tapered chuck pawls of the collet chuck convergently from the...
4167062 Dental handpiece  
A straight dental handpiece has a tubular housing for a motor driven collet mechanism rotatably supported at one end of the housing. The burr receiving collet mechanism is actuated by a pair of...
4114276 Dental tool handpiece assembly with removable spacer member  
A dental tool handpiece is provided with a spacer member which may be inserted into the collet of the handpiece which normally receives the tool and which has longitudinal slots adapting the collet...
4015489 Dental handpiece and wrench therefor  
A dental handpiece and a wrench adapted to be used in combination with the handpiece for securing a dental bur in the handpiece. The handpiece includes a turbine housing, a rotor shaft and a collet...
3960039 Collet wrench  
A collet wrench adapted to place a predetermined force on a collet threadedly secured in a dental handpiece. The wrench comprises a frame and means on the frame for securing the rotor shaft against...
3935761 Dental handpiece wrench  
An improved chuck wrench for contra-angle dental handpieces. The wrench includes a unitary angular C-shaped body, one of the arms of the body being provided with a socket and recess for accurately...
3888008 Handpiece and chuck wrench therefor  
A dental handpiece and wrench wherein the handpiece is provided with a threaded collet chuck which may be adjusted by the wrench for gripping or releasing a dental bur. If desired, the chuck may be...
3871097 Cooling system for a dental handpiece  
A dental handpiece, including a handle, a shank and a head, is disclosed for conveying a cooling stream of air to a workpiece. An air driven turbine mounted within the head serves as the motive...
3869796 Slotted chuck for tool holder  
A slotted chuck for a tool holder of the type having a hollow cylindrical spindle driven by a rotary motor for use with a tool having a cylindrical shaft. The chuck is provided with at least one...
Matches 1 - 50 out of 82 1 2 >