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| Number | Title | Issue Date |
| 7556498 | Medical contra-angle handpiece Medical, in particular dental, contra-angle handpieces for driving a dental instrument connected to the contra-angle handpiece with shafts arranged in the contra-angle handpiece for the transmission of the drive movement to the instrument. In order to achieve a redu... | 07/07/2009 |
| 7416410 | Medical or dental handpiece with a rear and a front shaft section that form an obtuse angle The invention relates to a medical or dental medical handpiece (3) having an elongate shaft (13), which has in its front end region a tool holder (5) having a lateral insertion opening (5a) for a tool (6), and having a rearw... | 08/26/2008 |
| 7334970 | Fast change bit holder device A method and apparatus for forming apertures and inserting fasteners in a workpiece is disclosed. One embodiment relates generally to a bit holder device for forming apertures and inserting fasteners into a workpiece. This embodiment comprises a tool bit, a hex hold... | 02/26/2008 |
| 7207798 | Mechanized dental instrument A mechanized dental instrument includes an active part (2) and a sleeve (3) arranged on an end of the dental instrument which opposes the active part. The sleeve (3) is provided with a rotary drive means (4) that can, when assembled with ... | 04/24/2007 |
| 7156659 | Contra-angle handpiece for rotary surgical instruments, in particular in dental surgery A driven appliance, such as a contra-angle handpiece for surgical instruments, in particular for dental surgery, includes a handle, a neck and a head for receiving an instrument. The handle and the neck of the contra-angle handpiece each receive a drive shaft, respe... | 01/02/2007 |
| 6975053 | Rotator driving device, image forming apparatus using the rotator driving device, and method of driving rotator Rotational force of a driving motor is transferred to a photosensitive drum via a planetary-rolle reduction device, so that the photosensitive drum is rotated. A speed detector set on the shaft of the photosensitive drum detects the rotational speed of the photosens... | 12/13/2005 |
| 6638068 | Medical handpiece having a rod-shaped grip part The invention relates to a medical, in particular dental-medical handpiece (3) having a rod-shaped grip part in the forward end region of which there is arranged a holding device (5) having a lateral insertion opening (13) for a working tool (6), whereby ... | 10/28/2003 |
| 6155827 | Sleeve for a dental instrument A shank for a dental instrument, including instruments which are used in endodontics and in dental prophylaxis, is fitted on a contra-angle or a handpiece and is provided with a rotary drive which cooperates directly with the rotary transmission members o... | 12/05/2000 |
| 6126442 | Motorised handpiece Motorised handpiece, more particularly for used by dentists or dental technicians, the rotary movement of a motor being transmitted to a tool which can be clamped with the aid of a clamping mechanism. To this end, the rotary movement of the motor is trans... | 10/03/2000 |
| 6050989 | Angularly adjustable powered surgical handpiece An adjustable collet mechanism for a surgical handpiece which enables the surgical tool driven by the handpiece to be oriented at selected angular positions relative to the handpiece axis. The coupling means includes a non-rotatable sleeve attached to the... | 04/18/2000 |
| 5941705 | Manual drive endodontic handpiece A manual drive endodontic handpiece includes a housing having proximal end and a distal end provided with an angle head which receives a dental tool. A drive shaft extends through the housing and is coupled to a manual driver such that rotational movement... | 08/24/1999 |
| 5743718 | Compressed air driven disposable hand tool having a rotor with radially moving vanes A fluid reaction device (10) is provided having a rotor (90) with vanes (92) pivotably connected thereto. The device (10) includes an entrance (30) for elevated pressure fluid and an outlet (40) for discharge of the fluid after contacting the rotor (90). ... | 04/28/1998 |
| 5575647 | General purpose dental handpiece A general purpose dental handpiece comprises a shank portion rigidly fixed to a nonarticulatable head portion adapted to removably support a drill burr along a burr axis disposed at an angle of 105°&#b1;2° with respect to the axis of the shank portion. ... | 11/19/1996 |
| 5571012 | Disposable prophy angle and adapter Disposable prophy angles for use in combination with a reusable metal adapter on a contra-angle dental hand piece. The disposable prophy angles are assembled from three mass-produced components formed from plastic or other inexpensive material. Each dispo... | 11/05/1996 |
| 5549634 | Surgical instrument with swivel member A surgical instrument includes a conduit, the conduit having a conduit axis defined through a terminal end thereof, and a fluid-powered motor for rotating a dissecting tool, the motor having a longitudinal motor axis. A swivel member is connected in fluid... | 08/27/1996 |
| 5352234 | Surgical instrument with angular swivel A surgical instrument includes a conduit, the conduit having a conduit axis defined through a terminal end thereof, and a fluid-powered motor for rotating a dissecting tool, the motor having a longitudinal motor axis. A swivel member is connected in fluid... | 10/04/1994 |
| 5348473 | Medical tool A medical tool such as a prophy angle is provided having primarily plastic parts to make disposing more economical. A portion of the drive shaft is made of metal to eliminate detrimental deformation. The housing is made of two plastic halves which snap-fi... | 09/20/1994 |
| 5040977 | Self powered dental plaque-removing device This invention provides a self-powered dental hygiene device having an outer housing with three sections, a battery section at one end, an intermediate electric motor section and at the second end a transmission section with a head end section at the dist... | 08/20/1991 |
| 4834652 | Dental handpiece The handpiece comprises a speed reducer (34) formed by an interchangeable modular unit. This reducer (34) is mounted in a housing (15) equipped with bearings (16, 17) supporting the input shaft (1), and the output shaft (10) respectively. The housing is c... | 05/30/1989 |
| 4753595 | Dental handpiece A dental handpiece, which has a gripping part connectable to a supply hose and a head part with a head housing which is removably held at the free end of the gripping part, characterized by the gripping part having at least one light conductor with an end... | 06/28/1988 |
| 4568642 | Quiet dental drill A dental handpiece having a low noise level consisting of: an elongated main housing having a head portion at the forward end thereof; a drive shaft located within the main housing and supported by fore and aft bearings mounted within the main housing; a ... | 02/04/1986 |
| 4564354 | Angle piece for dental purposes The invention is directed to an angle piece for dental purposes comprising a tool with cylindrical tool shaft (50), which tool is supported in the head part (1) transversely relative to the drive axis or axle and is securely connected with its drive gear ... | 01/14/1986 |
| 4493646 | Device for fixing a transmission assembly in the body of an angled dental tool A device for connecting to the body of a dentistry counter-angle the unit for transmitting the rotary movement of the major axis of the counter-angle to the oblique shaft contained in the head of the counter-angle. The transmission assembly is placed insi... | 01/15/1985 |
| 4486175 | Dental appliance A dental appliance has an elongated hollow tube within the interior of which is mounted for rotation an elongated drive shaft. One end of the tube is coupled to a handle as is the drive shaft which is driven from the handle in rotation. A head joined to t... | 12/04/1984 |
| 4486176 | Hand held device with built-in motor A hand held device with built-in motor for rotational drive of small tools. The hand held device includes an outer housing consisting of a larger diameter rear part which contains an electric driving motor, an intermediate part of small diameter which con... | 12/04/1984 |
| 4449932 | Contra-angle head for dentistry A rigid tubular housing having a shaft alley and transverse to it at one end a dental tool chamber, has a telescopically-fitted cover which in one position gives access to the tool chamber via diametrically-opposed apertures one of which is always open an... | 05/22/1984 |
| 4406621 | Coupling ensemble for dental handpiece A dental handpiece having a head mounted to a shoulder has a coupling ensemble formed of two coupling assemblies. The first coupling assembly is mounted within the shoulder and comprises a gear mounted to a shaft with the shaft extending into a coupling h... | 09/27/1983 |
| 4325696 | Dental handpiece arrangement A dental handpiece arrangement which has a drive transmission for transmitting the rotation from a motor to a socket receiving the tool in the head of the handpiece comprising a first drive shaft having a pair of coaxially arranged drive gears of differen... | 04/20/1982 |
| 4321041 | Miniaturized contra-angle A dental hand-piece of the type known as "contra-angle" uses a pair of helical gears on shafts that rotate on respective axes which pass by each other but do not intersect. The gears, one set of which is on a tool driver and the other set of which may be ... | 03/23/1982 |
| 4318695 | Handpiece An air driven dental handpiece having an air turbine at one end thereof. Collet means for securing a dental bur therein are positioned within the air turbine. The air turbine is mounted in ball bearings, which are in turn resiliently mounted within the tu... | 03/09/1982 |
| 4303393 | Dental handpiece A dental handpiece includes a handle, a shank projected from the forward end of the handle, a turbine head on the forward end of the shank, and a turbine type dental engine in the head, with the engine being capable of holding and rotating a suitable dent... | 12/01/1981 |
| 4295829 | Tool holder A tool holder having a bent handle and having first and second ends. The holder comprises a head comprising means for receiving the tool. The head is arranged at the first end of the tool holder. The holder further comprises an operating knob arranged int... | 10/20/1981 |
| 4286951 | Dental handpiece In a dental handpiece, in particular a contra-angle, comprising a head and a handle coupled with a bayonet joint, an internal support for a tool-driving shaft fits freely in the head and has a rear portion fitting freely in the handle. In the vicinity of ... | 09/01/1981 |
| 4285671 | Contra angle with interchangeable geared tools and the like A contra-angle housing made in two parts hinged together at one end encloses a drive shaft with drive gears at one end, and a geared hub for a dental tool or the like supported in apertures in or through the housing parts transverse to the drive shaft. A ... | 08/25/1981 |
| 4276025 | Dental handpiece In a dental handpiece having a drive motor, a grip section coupled to the drive motor and terminating in a head part having a socket for supporting a tool for rotation, the grip section having a drive train for transmitting rotation motion of the drive mo... | 06/30/1981 |
| 4268252 | Contra-angle head for dentistry A rigid tubular housing provides separate enclosures for a drive shaft and a dental tool that are rotatable on axes that are angularly related. A wall separating the two enclosures provides bearing support for tool-driving gears in one of the enclosures a... | 05/19/1981 |
| 4260381 | Dental handpiece A dental handpiece consisting of a driving sleeve which includes a driving arrangement, a base sleeve and a head sleeve including a dental work tool. At least the base sleeve and the head sleeve are detachably interconnected for the purpose of exchanging ... | 04/07/1981 |
| 4253832 | Dental handpiece A dental handpiece having a cross head with one end capped and the other end open, a driven gear in the capped end having a thrust bearing against the cap, and a fixed bearing extending from the gear to the open end with a driven shaft rotatably mounted i... | 03/03/1981 |
| 4226591 | Contra-angle head for driving two dental tools A contra-angle tool holder head notably for dental drills and cutters, for rotatably driving in opposite directions two coaxial dental tools such as drills or cutters comprises a first holding member adapted to drive the first tool and consisting of a cla... | 10/07/1980 |
| 4212641 | Dental handpiece A dental handpiece comprising a holding sleeve, a head sleeve inclined to the holding sleeve and adapted to mount a dental instrument, a connecting zone providing an interconnection between the holding sleeve and the head sleeve, a drive shaft housed main... | 07/15/1980 |
