| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Mixer fork for dental capsules | US192707 | 1988-05-11 | US4890931A | 1990-01-02 | Wolf-Dietrich Herold |
| A mixer for dental capsules has a fork-type capsule holder which includes a pair of rigid arms (1, 2) one of which is provided with a pin (10) that passes through an opening (11) provided in the other arm (1). A helical spring (13) disposed about the pin (10) creates a tilting moment about the capsule holding location which causes the pin (10) to be caught by edges forming the opening (11), thereby producing a self-locking action which is not released during the mixing movement. For inserting and removing a capsule (5) in the inoperative condition of the mixer, the fork may be readily opened by pulling a handle (16) provided on the one arm (2) against the relatively weak force of the spring (13). | ||||||
| 42 | Methods for posterior dental restoration employing light curable packable compositions | US443154 | 1982-11-19 | US4514174A | 1985-04-30 | Emery W. Dougherty; John B. Heyde; Richard J. Bennett; Roy L. Smith; Louis H. Tateosian; George T. Eden |
| Novel processes for the restoration of teeth particularly posterior teeth, wherein the use of a matrix band is required, are provided employing one component, packable, actinic light curable, resin-based restorative compositions. Such methods are now capable, for the time, of employing resin-based restoratives in the posterior restoration of teeth wherein the packability of the restorative composition enable the deformation of a matrix to allow substantial restoration of the original conformation of the tooth. Packable one component actinic light curable resin-based restorative compositions are provided. | ||||||
| 43 | Multi-compartment container for storing and mixing dental amalgam ingredients, and method of using such a container | US133262 | 1980-03-24 | US4362242A | 1982-12-07 | Jeffery J. Cheetham |
| The present invention provides a self activating multicompartment container comprising an outer wall defining a chamber, a partition dividing the chamber into first and second compartments, a first, high specific gravity liquid component of a composition contained in the first compartment and a second component of the composition contained in the second compartment, wherein the container may be subjected to rapid oscillatory motion so as to cause the high specific gravity liquid component to rupture the partition so that admixture of the components takes place.The container of the invention is useful for storage, transportation and admixture of the components of compositions in which one component is a high specific gravity liquid such as mercury, an example of such compositions being dental amalgams. The container may be activated by being inserted in a vibratory mixture and does not require the use of a plunger. | ||||||
| 44 | Capsule for the storage and vibration-mixing of two components: particularly for dental purposes | US197261 | 1980-10-15 | US4306651A | 1981-12-22 | Ernst Muhlbauer |
| A capsule for the storage and vibration mixing of two components, particularly for dental uses comprises a mixing chamber in which one of the components is stored, the chamber having an aperture which is closed by means of a removable closure member and a foil bag which can be ruptured without disintegration by the mixing movement is housed in the mixing chamber and contains the other component in liquid form. The liquid component is a high specific gravity liquid such as mercury and the closure member is sealingly secured to that part of the capsule which forms the mixing chamber by a seal which has a predetermined breaking strength, formed conveniently by a weld or adhesive. Externally the closure member presents a cylindrical socket to which can be fitted a cylindrical lever for the purpose of breaking the seal to remove the closure member and allow access to the interior of the mixing chamber for withdrawal of the mix. | ||||||
| 45 | Containers | US58260 | 1979-07-17 | US4294351A | 1981-10-13 | Jeffery J. Cheetham |
| The present invention provides a multi-compartment container designed for storage and transportation in separated condition of the components of a composition, particularly where the components are interactive, and for admixture of the components when required for use. The container comprises a chamber separated into first and second compartments by a partition, wherein the first compartment is arranged to receive a first component of a composition and the second compartment is arranged to receive a second component of the composition, the partition is mounted on the interior of the container and the first compartment is provided with a plunger which is sealingly slidable within the first chamber, is initially mounted in an extended condition so that the innermost end of the plunger defines a wall of the first compartment opposite to the partition and is arranged to be depressed and to separate a portion of the margin of the partition from the interior of the chamber. | ||||||
| 46 | Disposable capsules | US930343 | 1978-08-02 | US4185740A | 1980-01-29 | Alan J. Perfect |
| The instant invention relates to disposable capsules which contain coreactive components in separate chambers and means for automatically combining and mixing said coreactive components prior to opening the capsule. The instant disposable capsules may contain dental amalgam precursors such as mercury and silver which may be combined and mixed merely by placing such capsule in a dental amalgamator. The disposable capsules comprise a hollow cylindrical section closed at one end and having an internal constriction spaced from the other end, and a movable insert comprising a stem having an upper portion inserted through and frictionally engaging said constriction and a flange extending outwardly about the lower end of said stem and frictionally engaging the inner wall of the hollow cylindrical section, whereby said flange initially divides said cylinder into two noncommunicating chambers. | ||||||
| 47 | Disposable dental capsule | US857340 | 1977-12-05 | US4142629A | 1979-03-06 | Joseph G. Biondo; Salvatore L. Savarese |
| A small two-part capsule for receiving and for storing separately individual ingredients and for mixing them together has two cavities in one part which receive the ingredients separately. The cavities are sealed by the other part via a screw thread connection. When the capsule is inverted and the connection is loosened, the ingredients from one cavity flows into the other. Novel sealing means is provided between the two parts. | ||||||
| 48 | System for mixing and dispensing dental amalgam | US707296 | 1976-07-21 | US4084320A | 1978-04-18 | Lewis Skeirik |
| A capsule is provided in which dental amalgam may be mixed, and the capsule itself connected to a dispenser for direct application into a cavity. The capsule includes a cylindrical body with a longitudinal offset passage holding a quantity of silver fillings or the like. End caps are removably mounted to each end of the body portion, with one cap formed with a socket having a pestle adapted to move in and out of the passage, while the other cap is provided with a pair of sockets, one with a pestle and one with a charge of mercury. The second cap is rotatable to different stop positions, first to align the cavity with the mercury to mix it with the silver and then to align the pestle cavity with the passage for mixing. The dispenser includes a detachable nozzle tip and a plunger engageable at opposite ends of the center portion for dispensing the mixed amalgam. | ||||||
| 49 | Dispensing cartridge with stepped chamber | US240389 | 1999-01-29 | US6095814A | 2000-08-01 | Robert W. Petrich; Thomas W. Martin; James R. Kvitrud |
| A dispensing cartridge for use with a hand-held applicator has a chamber with a first section and a second section. The second section has a smaller cross-sectional area than the first section such that the chamber has a stepped configuration. A piston is slidably received in the chamber and has a head portion that is received in the second section and a tail portion that is received in the first section. As a force is applied to the tail portion, the head portion advances to expel material through an outlet opening. The cartridge is especially useful for dispensing compositions having a relatively high viscosity such as dental pastes and the like. | ||||||
| 50 | Dental compounds, compositions, products and methods | US953705 | 1997-10-17 | US5981620A | 1999-11-09 | Paul D. Hammesfahr; Kewang Lu; Paul A. Silver |
| The invention provides polymerizable dental, compounds, compositions, including the compounds and products for mixing the compositions and methods of using the compositions. Aryl acid compounds are provided in accordance with the invention. The compositions include at least one polymerizable aryl acid compound, an effective amount of a polymerization initiator, and at least 10 percent by weight of ceramic, metal and/or metal oxide filler particles having a particle size less than 500 microns. The dental products of the invention include a polymerizable composition in an enclosure having at least two chambers separated by a wall adapted to be ruptured prior to or during mixing of the composition. Compositions of the invention are preferred for use in these enclosures. Core build up material including a polymerizable acid containing compound is used to support dental crowns and adhere them to teeth in accordance with the invention. | ||||||
| 51 | Dental amalgam capsule | US752383 | 1996-11-20 | US5816805A | 1998-10-06 | Jeffery James Cheetham |
| The invention relates to a dental amalgam capsule 10 arranged to contain mercury in a first compartment 16 and dental alloy powder in a second, or mixing, compartment 18, a conduit 28 being provided so that amalgam can be dispensed by a rod 66 directly from the capsule 10 into a cavity in a tooth. | ||||||
| 52 | Mixing capsule and method of manufacturing same | US695629 | 1996-08-12 | US5746313A | 1998-05-05 | Michael S. Wilson |
| A dental amalgam mixing capsule including an inner capsule housed in an outer capsule. The inner capsule includes an elongated pestle telescopically extended into an open ended cap including a resilient, annular skirt formed with an annular sealing lip sized for frictional, gripping engagement with the pestle to define a storage chamber therebetween for storing a liquid component of the amalgam. The inner capsule may be made by subjecting the cap to a partial vacuum, inserting a charge of such liquid component therein, and registering one end of such pestle in sealing engagement with such sealing lip. Thus, when the assembly is returned to atmospheric pressure, the partial vacuum trapped in the cap will provide for a pressure differential across the pestle drawing it into the cap to fill the space therein. | ||||||
| 53 | Compartmentalized dental amalgam mixing capsule | US504575 | 1995-07-20 | US5509530A | 1996-04-23 | Michael S. Wilson |
| A compartmentalized dental amalgam mixing capsule including an upstanding elongated receptacle having a cylindrical interior chamber for receipt of an alloy therein. The receptacle is formed with an annular flange in the upper portion of the chamber including a central opening and formed with at least one lock pin projecting laterally outwardly from the receptacle. A rupturable pillow containing mercury therein is configured to overlie the flange. An elongated cylindrical cap formed with a closed top end, an open bottom end, and includes a piston device carried from the top end projecting axially downwardly therefrom to terminate in a hammer end configured to overlie the pillow. The cap is further formed with an elongated groove slidably receiving the lock pin and angling axially upwardly in one circumferential direction. The cap is telescopically received over the open end of the receptacle so that rotation of the cap in the direction opposite the one direction will draw the cap axially from a first position to a second position. As the cap is rotated, it is shifted from the first to the second position to drive the hammer end thereof downwardly toward the flange a distance sufficient to rupture the pillow and introduce the mercury through the central opening in the flange into the chamber for mixing with the alloy. | ||||||
| 54 | Dental composite cartridge | US274685 | 1994-07-14 | US5460523A | 1995-10-24 | Martin Schulman |
| A dental composite cartridge is made of a plastic material molded to define an elongated cylindrical hollow body portion forming a reservoir, and a discharge nozzle portion. A piston is disposed within an open end of the hollow body after the body is filled with dental composite material. The hollow body and the discharge nozzle define a planar end wall which intersects the longitudinal axis of the hollow body at an angle of about 45.degree.. The interior design of the hollow body and its angled planar end wall enables a simple, easy to manufacture and cost-effective piston to be used in the hollow body for discharging dental composite material from the reservoir. | ||||||
| 55 | Dental composition and method | US49221 | 1993-04-19 | US5338773A | 1994-08-16 | Kewang Lu; Chin-Teh Huang; Paul Hammesfahr |
| The invention provides dental cement compositions and methods of using them for binding hard tooth material, metal and ceramic. The cement compositions include polymerizable acid reactive ethylenically unsaturated monomers, and a source of cations reactive therewith, to further crosslink the resulting polymer. The cements have superior adhesion to tooth without separately acid etching dentin or enamel. Compositions of are useful as dental luting cements, liners, bases and restoratives. | ||||||
| 56 | Dental syringe tip | US964007 | 1992-10-20 | US5322440A | 1994-06-21 | Charles E. Steele |
| A dental syringe tip having positioned in a material-containing passage therein a plug with a stepped nose configuration to minimize the force required to dispense material from the syringe tip. The stepped nose configuration also increases the amount of material dispensed from the syringe thereby reducing waste. The plug includes a sealing member to provide improved sealing between the plug and the internal surfaces defining the passage within the syringe tip. | ||||||
| 57 | Dosing dental cartridge | US740304 | 1991-08-05 | US5165890A | 1992-11-24 | John Discko, Jr. |
| A dental cartridge for dispensing a dental material having a body portion made of a material transparent to at least a portion of the visible light spectrum and opaque to the actinic light of the dental material contained therein. Also, a dental cartridge having a body portion formed from a toroidal segment and a coaxial nozzle attached thereto. The dental cartridges arae used in a dental syringe for application of the dental material to a patient. Several embodiments provide various discharge end configurations, including hemispherical, conical frustum, and flat. Additionally, dosing indicia are placed on the body portion of the dental cartridge, permitting the dentist to fill the dental cartridge with a predetermined volume of dental material. A specially configured piston having an appendage thereon is used in combination with the dental cartridge for extruding substantially all of the costly dental material therein. | ||||||
| 58 | Dental packaging material and cartridge | US465802 | 1990-01-16 | US5100320A | 1992-03-31 | Thomas W. Martin; Jeffrey S. Steinmetz; Scott R. Culler |
| A cartridge made of a material that does not to a significant extend absorb polar components from a dental composition stored therein. The force required to extrude a dental composition from the cartridge increases less over time in a cartridge of the invention than in a cartridge of the same configuration made of conventionally employed materials such as nylon-6. | ||||||
| 59 | Arrangement for operating a multi-component mixing capsule, in particular for dental purposes, by means of a vibratory mixing device | US402826 | 1989-09-05 | US5088830A | 1992-02-18 | Ernst Muhlbauer |
| Arrangement for operating a multi-component mixing capsule, in particular for dental purposes, by means of a vibratory mixing device, to activate the capsule and to mix the contents of the capsule. The mixing capsule contains a mixing space and a chamber to receive a foil sachet containing a liquid component. The chamber is delimited by two walls, one of which can be moved towards the other to activate the capsule, that is to empty the foil sachet in the mixing space. This takes place according to the invention by means of a first striking body, which as a result of mixing vibration is accelerated against the chamber wall. | ||||||
| 60 | Dental syringe tip | US477631 | 1990-02-09 | US5083921A | 1992-01-28 | William B. Dragan |
| This disclosure is directed to a dental syringe and a disposable syringe tip for use therewith, and more particularly to an improved syringe tip constructed to minimize the entrainment of air by the material being extruded and to provide a dentist with a maximum of visibility during use. The syringe tip includes a cylindrical body portion to define a reservoir that is provided with a conically shaped, closed front end and a full opening at the other end, which is adapted to be sealed by a displaceable piston. The closed front end is provided with an internal frusto-conical chamber disposed in communication with an angularly offset discharge nozzle having its passageway at the inner end thereof disposed contiguous to the blunt end of the internally disposed frusto-conical chamber; and the disposable piston having a frusto-conical end portion to complement the shape of the internal front end of the syringe tip to enhance the complete evacuation of the material disposed within the syringe tip without the entrainment of any air. In an embodiment of this invention, the syringe tip is provided with a color code comprising a colored sealing cap and/or a colored piston for identifying the type and/or shade of the material contained therein. | ||||||
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