Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7276199 | Molding methods including movable core pin support Apparatus and methods for molding a part with at least one passage at least partially therethrough. Generally, the method includes injecting a molding material into a mold cavity having at least one pin disposed therein to form the passage. In preferred implementati... | 10/02/2007 |
| 7192279 | Dental handpiece A dental handpiece including a handpiece body with a head mounting seat, with a gas feeding channel, wherewith the seat is adapted to provide a full turn of the head. The head includes a turbine and an gas feeding aperture to the turbine. A micromotor is included ha... | 03/20/2007 |
| 6390815 | Multiple solution dental irrigator A fluid dispensing assembly that may be used to supply fluid for use in dental instrumentation including irrigation, application, and aeration for treating a patient's mouth. The fluid dispensing assembly includes a fluid supply system that conveys fluid ... | 05/21/2002 |
| 6302692 | Multi-valve dental handpiece supply reservoir A fluid supply system that may be used interchangeably to supply fluid for use in dental instrumentation including irrigation, application, aeration, and evacuation for treating a patient's mouth. The fluid supply system includes a dental handpiece that h... | 10/16/2001 |
| 5795167 | Air driven low speed dental handpiece motors Air driven dental handpiece motors include a tubular housing and a rotor rotatably supported within the housing. One motor is geared down by the provision of a plurality of idler gears rotatably supported on a hub which rotates between a sun gear on the o... | 08/18/1998 |
| 5718580 | Vapor blaster A hand held blow gun is designed to help dental lab technology wash, rinse, and dry a prosthesis using one hand. High pressure air (100 p.s.i.) is needed to clean the work piece. Next a wash and finally an air dry process is needed. The vapor blaster is a... | 02/17/1998 |
| 5697784 | Dental cleaning device with a grip member A dental cleaning device (1) is provided with a mouthpiece (6) and with a grip member (4) having a fluid channel (83, 76, 75, 67, 69, 70, 71, 93, 94) and having a fluid-flow control device (61) which is adjustable an actuating member (8), which is movable... | 12/16/1997 |
| 5476380 | Dental handpiece A dental handpiece includes an end grip member gripped by an operator during use. The end grip member has a first end to be connected to an air supply and a second end on which is selectively detachably mounted a tool holder supporting a tool that is driv... | 12/19/1995 |
| 5344317 | Electrically powered appliance for oral hygiene The present invention is directed to an appliance for oral hygiene, in particular an oral irrigating apparatus 10, comprising a hand-held unit 12 and a base unit 14 interconnected by a fluid conducting hose 19 and electrical conductors 21, 23. By means of... | 09/06/1994 |
| 5226877 | Method and apparatus for preparing fibrinogen adhesive from whole blood A process and apparatus for one-step preparation of fibrinogen adhesive by polyethylene glycol-mediated precipitation from plasma are disclosed. The methods and apparatus of the invention permit preparation of autologous fibrinogen adhesive composition fr... | 07/13/1993 |
| 4944676 | Replaceable fluid flow control device for dental units A replaceable fluid flow control device having a first element for providing valve bodies and a second element for providing fluid inputs and outputs. The second element is firmly mounted on a dental unit with a pair of mounting rods, and the first elemen... | 07/31/1990 |
| 4944675 | Dental spray handpiece A dental spray handpiece, consisting of a gripping sleeve having a media inlet connection at one end thereof and a media discharge outlet at its other end, the gripping sleeve having media conduits arranged therein which extend from the media inlet connec... | 07/31/1990 |
| 4941298 | Rear reservoir micro sandblaster Disclosed herein is an apparatus for abrading, etching, polishing and cleaning metallic or non-metallic surfaces that operates through mechanical sandblasting principles. The present invention is embodied in an apparatus for abrading, etching or polishing... | 07/17/1990 |
| 4813926 | Medical suction device with air vent and fixed restrictor A fine tip hand-held medical suction device is provided having a vent orifice in the sidewall of the tip remote from the suction orifice of the tip and the hand holding portion of the device to regulate the negative pressure at the suction orifice. A flui... | 03/21/1989 |
| 4744752 | Dental handpiece control device A control device for use in an air turbine dental handpiece comprising an air turbine which is integrated with a spindle supporting a cutting tool and is rotatably supported in a head housing by bearings, an air supply passage which supplies compressed ai... | 05/17/1988 |
| 4672953 | Oral hygiene apparatus An oral hygiene apparatus for facilitating the accomplishment of an oral hygiene program. The apparatus includes liquid injection ports and a suction opening which are located proximate the bristles provided on the apparatus with the liquid injection port... | 06/16/1987 |
| 4642051 | Dental handpiece A dental handpiece, consisting of a gripping sleeve part with a built-in air motor for the drive of a treating implement which is supported within the gripping sleeve part. The gripping sleeve part has a detachable connecting member associated therewith; ... | 02/10/1987 |
| 4416658 | Blood suction device A blood suction device for removing blood from a surgical field is provided which can be controlled by a pressure sensing means mounted on a suction tip of the device for starting and stopping the roller pump of the device, and changing the revolution rat... | 11/22/1983 |
| 4403958 | Dental compressed-air motor A dental compressed-air motor, consisting of a housing in which there is arranged a rotatably supported rotor adapted to be set into rotation by means of operational compressed air which is introduced into the housing through the intermediary of an operat... | 09/13/1983 |
| 4397640 | Instrument for irrigation of a surgical site A flushing instrument or irrigator for surgical purposes comprises a stem 11 having an inlet end 29 adapted for connection to a flushing fluid supply line 13 and a discharge end 12. A fluid supply passage 16, 17, 18, 24, 19, 20, 21 is able to convey flush... | 08/09/1983 |
| 4382786 | Dental handpieces with supplied operating media A dental treatment installation comprising at least one dental handpiece having an air operated drive motor and an outlet for discharging operating media used for dental purposes, a spray handpiece, a control arrangement for controlling the supply of oper... | 05/10/1983 |
| 4363626 | Dental syringe A dental syringe employs a single thumb or finger operated control member mounted on the syringe for regulating the flow of air or water or spray. The single control moves axially and vertically with respect to the syringe. Axial movement either forward o... | 12/14/1982 |
| 4340368 | Dental handpiece or the like A hand held power tool, particularly of the type of a dental handpiece or the like is provided with power shut-off means disposed directly within the handle. The shut-off means is mechanically connected with a suspension means for suspending the hand piec... | 07/20/1982 |
| 4299221 | Irrigation and suction handpiece An irrigation-suction handpiece assembly, for dental and surgical use at an operating site, includes a handle containing longitudinally extending, side-by-side suction and irrigant passageways respectively connectible to a source of subatmospheric pressur... | 11/10/1981 |
| 4278427 | Compressed-air dental motor A compressed-air dental motor includes a housing, a rotor, a compressed air inlet conduit supplying compressed air for placing the rotor into rotation, and a rotor shaft in the rotor connectable with a work tool, such as a drill. A valve member in the hou... | 07/14/1981 |
| 4276023 | Fluid flow control console A fluid control for powering and supplying coolant liquid to gas operated surgical and dental tools and for supplying irrigant to a suction-irrigation handpiece, selectively by remove control from a surgical or dental operating site. A console remote from... | 06/30/1981 |
| 4266934 | Dental handpiece with fluid delivery control This dental handpiece comprises means for controlling the delivery of compressed air and water to an outlet conduit leading to the head of the handpiece. The water and air supply conduits from the motor open each into a circular groove formed in the inner... | 05/12/1981 |
| 4118866 | Dental handpiece control apparatus A dental air-water handpiece control system for operating a plurality of handpieces and an air-water syringe including a plurality of control pedals equal in number to the number of handpieces and each having a needle valve responding to the distance the ... | 10/10/1978 |
| 4074434 | Pressure-responsive speed control for dental handpieces A speed control system for dental handpieces in which a sleeve or tube of pliable material defines an elongated deformable passage. The passage communicates at one end with a source of gas (air) under pressure and, at its opposite end, is vented to discha... | 02/21/1978 |
| 4026027 | Dental hand drill employing pressure-sensitive grip A pressure-sensitive grip for a dental hand drill for providing continuous control of the speed thereof. The pressure-sensitive material preferably comprises a strain gage sensing element positioned along the body portion of the dental tool which is norma... | 05/31/1977 |
| 3963391 | Method and apparatus for controlling speed and torque of hand held air driven vane type motors A method and apparatus for controlling speed and torque of hand held air driven vane type motors is available in several embodiments. For example, one embodiment is used in tool and die work and another embodiment is used in dental work. In reference to t... | 06/15/1976 |
| 3959882 | Fluid control apparatus A fluid control apparatus more particularly for use in dental systems and with dental tools and workpieces to enable the finite control, by the operation by hand, of the functions required to be performed by the actuated dental tools and workpieces wherei... | 06/01/1976 |
| 3947965 | Pressurized dental handpiece A pressurized dental handpiece has a housing in which a shaft is journalled and from which the shaft projects to support a dental tool. A high speed air turbine runner is on the shaft and is propelled by air under superatmospheric pressure brought to a no... | 04/06/1976 |
