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| Number | Title | Issue Date |
| 8092217 | Suckback prevention device for single use high-speed turbine dental drill handpiece A high-speed turbine dental drill handpiece has a drilling needle, a wind wheel axle, a head housing having an annular opening with a two-step profile shape, and a suckback prevention device. The suckback prevention device includes an elastic bowl-shaped axle shroud... | 01/10/2012 |
| 7140880 | Medical or dental-medical handpiece having a rotary part mounted in a roller bearing The invention relates to a medical or dental-medical handpiece having a rotary part which is rotatably mounted in a bearing bush by means of a roller bearing having an inner ring and an outer ring. In order to improve the handpiece with regard to an axial limiting o... | 11/28/2006 |
| 7104794 | Ultrasonic dental tool having a light source An ultrasonic dental insert having at least one light source. A first transducer generates ultrasonic vibrations. A connecting body has a proximal end and a distal end having a tip attached thereto. The proximal end is attached to the first transducer so as to recei... | 09/12/2006 |
| 7048540 | Air-driven cutting device for medical treatment A air-driven cutting device for medical treatment (a handpiece (10)) comprises a housing (18) for a head portion (14). The housing (18) accommodates a rotary cylinder (60) for holding a cylindrical cutting tool (46) inserted... | 05/23/2006 |
| 6379151 | Handpiece A medical handpiece, particularly a dental handpiece, for use with an internally cooled tool, wherein the tool has an axial hollow space into which the cooling fluid is conducted in an essentially radial direction through a bore of the tool shaft, and whe... | 04/30/2002 |
| 6255363 | Liquid inks using a gel organosol An organosol comprising a high molecular weight (co)polymeric steric stabilizer covalently bonded to an insoluble, high molecular weight thermoplastic (co)polymeric core is described which has the ability to form a three dimensional gel of controlled rigi... | 07/03/2001 |
| 6099308 | Dental handpiece with dust control mechanism A dental handpiece is disclosed which has a housing having a wall, a bur sleeve for receiving and holding a dental tool therein, a bearing for rotatably supporting the bur sleeve, a rotary dust control member fixed on the bur sleeve, and a stationary dust... | 08/08/2000 |
| 5997296 | Exploratory device with potting material In a device with an elongate housing for examining the gums of a patient, with the housing having a connecting area for connecting a replaceable, movable exploratory tip and with mechanical and/or electronic detection elements provided in the housing for ... | 12/07/1999 |
| 5921777 | Dental and surgical handpiece with disposable cartridge A dental and surgical handpiece with disposable cartridge of the present invention includes a reusable handpiece and a disposable cartridge. The disposable cartridge contains all the major moving parts that provide torque and RPM for high speed dental dri... | 07/13/1999 |
| 5876203 | Permanently lubricated dental prophylaxis angle A maintenance-free dental prophylaxis angle includes a one-piece body including a sleeve and a head. The sleeve and head define intersecting bores. A drive assembly, comprising a drive gear and a bushing, is force fitted in the sleeve. A one-piece driven ... | 03/02/1999 |
| 5868571 | Dental hose assembly A dental hose assembly for use with a dental handpiece. The assembly comprises inner tubes, an outer tube enclosing the inner tubes, a connector for connecting the inner tubes to fluid passages in the handpiece, a tubular hose guide enclosing the distal e... | 02/09/1999 |
| 5823774 | Dynamically sealed surgical drill A device is disclosed that dynamically seals the collet of a high-speed surgical or dental drill from the ingress of contaminating substances with which the tool or collet of the drill comes into contact, such as blood, saliva, saline, tissue, bone chips,... | 10/20/1998 |
| 5816803 | Water injection type dental handpiece A center injection type dental handpiece contains a cutting bar having a hollow axially penetrating the bar, holding means for detachably holding the bar, rotating means for rotating the bar, a water injection nozzle communicating with a cooling water fee... | 10/06/1998 |
| 5692903 | Exchangeable cartridge for dental handpiece An exchangeable cartridge for a dental handpiece includes first dust-proofing members for preventing foreign matter from being intruded into an upper bearing and second dust-proofing members for preventing foreign matter from being intruded into a lower b... | 12/02/1997 |
| 5683247 | Permanently lubricated dental prophylaxis angle A maintenance-free dental prophylaxis angle includes a one-piece body including a sleeve and a head. The sleeve and head define intersecting bores. A drive assembly, comprising a drive gear and a bushing, is force fitted in the sleeve. A one-piece driven ... | 11/04/1997 |
| 5683248 | Autoclaving cap for dental handpieces An autoclaving collar having a distal end and a proximate end is presented for fastening to the proximate end of a conventional dental handpiece to protect the impeller of the handpiece from the corrosive environment of autoclaving or sterilization. The c... | 11/04/1997 |
| 5676542 | Medical or dental treatment instrument In a medical or dental treatment instrument, in particular a straight or angled handpiece (1), having a drive shaft (6) for a tool, which drive shaft is mounted in the forward end region of the treatment instrument, in at least one roller bearing (11, 12)... | 10/14/1997 |
| 5655906 | Autoclavable dental sonic scaler The drive assembly for a dental sonic scaler is disconnected from a scaling tip assembly and is then withdrawn from a surrounding tubular handle/sheath. This allows the sheath to be sterilized, after use, while the drive assembly, not needing sterilizatio... | 08/12/1997 |
| 5642995 | Dental prophylaxis angle with seal protector A dental prophylaxis angle includes a body defining a sleeve and a head. A drive assembly is rotatably mounted in the sleeve. A driven gear is rotatably received in the head to be driven by the drive assembly. A cap is mounted in the head to close the hea... | 07/01/1997 |
| 5609445 | Straight motorized handpiece, in particular for medical purposes, preferably for a medical or dental laboratory In a straight motorized handpiece (101), in particular for medical purposes, preferably for a medical or dental laboratory, with a clamping device (106) arranged in a sleeve-like casing (111) for the selective clamping of tools (105) which can be inserted... | 03/11/1997 |
| 5599184 | Protective system for dental drill units A protective system for dentist chill units including a protective element and a sealing substance around the drill to prevent the entrance of undesirable matter such as the HIV (AIDS) virus into the handpiece holding the drill, which may, when the drill ... | 02/04/1997 |
| 5599143 | Motorized handpiece, in particular for medical purposes, preferably for a medical or dental laboratory In a motorized handpiece (101), in particular for medical purposes, preferably for a medical or dental laboratory, with a clamping device (106) arranged in a sleeve-like casing (111) for the selective mounting of tools (105) which may be inserted into the... | 02/04/1997 |
| 5531596 | Dental hand piece with water distribution system A dental hand piece includes a head to which is secured a burr, and a liquid supply or distribution assembly directs a stream of cooling liquid directly to the burr from exteriorly of the dental hand piece itself. The liquid supply assembly is connected t... | 07/02/1996 |
| 5423678 | Handpiece having bearing protective member A dental handpiece contains a sleeve for rotatably accommodating and securing a dental treatment tool therein, bearings for rotatably holding the sleeve with respect to stationary handpiece casing members, a rotatable rotor fixed to the sleeve for rotatin... | 06/13/1995 |
| 5267860 | Dental hygiene tool with shield and germicidal seals An extendable latex shield and internal seals are incorporated in a disposable dental hygiene tool for protecting sterility of standard dental handpieces. The flexible nature of the extendable shield allows storage in a first position, permitting the dent... | 12/07/1993 |
| 5252065 | Cartridge type dental handpiece A cartridge type dental handpiece contains a handpiece main body, a head housing provided at a distal end of the handpiece main body, and a cartridge detachably adapted within the head housing. The cartridge has a cartridge casing and a rotatable sleeve r... | 10/12/1993 |
| 5209658 | Dental prophy angle A disposable dental prophy angle designed to be coupled with a conventional dental tool power source, the angle being used in dental prophylaxis. The dental prophy angle is fabricated from synthetic resin material and comprises a housing presenting a head... | 05/11/1993 |
| 5096418 | Motorized dental handpiece with fiber optic illumination An air motor and accompanying air distributor and motor output drive means are axially stacked within a tubular dental handpiece. A fiber optic bundle extends through a special passage in the thick-wall side of an eccentrically positioned cavity in the mo... | 03/17/1992 |
| 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 delimited gap sections the one end of which communicates with... | 12/24/1991 |
| 4975056 | Medical, especially dental handpiece A medical handpiece, and especially a dental handpiece, including a drivable worktool or implement which is rotatably supported with its shaft at one end of the handpiece and which projects from this handpiece end with its operating end. The implement pos... | 12/04/1990 |
| 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 |
| 4369034 | Device for preventing the ingress of water into the head of a dental contra-angle This device for preventing the ingress of water into the head of a dental contra-angle comprises a ring seal of cylindrical configuration adapted to be inserted through a hole formed in the bottom wall of the head body for the passage of the dental tool. ... | 01/18/1983 |
| 4365956 | Cleaning cup A dental tool and handpiece, wherein the tool has a projecting cylindrical, flexible flange extending into a cylindrical recess in the handpiece and sealable thereinto by centrifugal force. Various forms are illustrated. The operation of the flange is ind... | 12/28/1982 |
| 4295830 | Motorized dental handpiece A motorized dental handpiece has a head and a head cap portion which is connectable thereto. The head cap portion includes a head gear shaft, a head gear rotatable with the head gear shaft, a head cap, a flange rotatable with the head gear shaft, and a se... | 10/20/1981 |
| 4292027 | Sealing dental collet A collet of somewhat flexible plastic for holding a dental tool in a dental handpiece, has an inner body which fits within a socket in the burr tube of the handpiece, and at its outer end extends outwardly into a hub and then rearwardly into a cylindrical... | 09/29/1981 |
| 4281989 | Articulated dental hand piece An air driven turbine supporting a burr is pivotably mounted at the extremity of an arm, which arm is pivotably attached to the handle of a dental hand piece. Conduits extend through the handle and the arm to the turbine and provide a flow of air to and f... | 08/04/1981 |
| 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 |
| 4230453 | Light assembly for use with a dental handpiece The assembly includes an electrically insulative support member which overlies electrical contacts on the handpiece and further includes a pair of contact members which press a flexible printed circuit against the electrical contacts to couple a pair of b... | 10/28/1980 |
| 4225308 | Pneumatic laminar motor for dental use A pneumatic laminar motor, for dental purposes, having a sleeve-like housing forming the stator with circular cylindrical inside wall and a rotor inside touching that wall. The rotor has a diameter smaller than the inside wall and its rotary axis is paral... | 09/30/1980 |
| 4183140 | Dental stain remover A dental stain remover apparatus for removing stains from teeth comprising a drive casing with a removable handle mounted to the drive casing at an angle to the axis of the drive casing, the drive casing forming a chamber which receives a motor and defini... | 01/15/1980 |
