| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Dental syringe tip and syringe holder therefor | US306471 | 1989-02-06 | US4963093A | 1990-10-16 | 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. | ||||||
| 62 | Vacuum mixing apparatus for dental materials | US251543 | 1988-09-29 | US4871261A | 1989-10-03 | Ronald M. Randklev |
| A mixing apparatus includes a capsule having two or more segments which nay be uncoupled or opened for adding additional ingredients to a pre-dosed ingredient just prior to the mixing operation. The capsule includes a port which is brought into registration with a vacuum port and an adjacent passageway carried by an arm of a dental amalgamator when the capsule is mounted on the arms, and sealing engagement of the perimeter of the capsule port with the port carried by amalgamator arm enables the establishment of sub-atmospheric pressure conditions within the capsule during the mixing operation. Optionally, the ingredients are mixed in a disposable ampule carried within the capsule, and vacuum conditions are established both internally and externally of the ampule for preventing unintentional compression of the ampule. The apparatus is particularly useful for mixing materials which, after mixing, have a consistency ranging from a light cream to a thick, viscous paste. | ||||||
| 63 | Amalgam capsule | US269258 | 1988-11-09 | US4863017A | 1989-09-05 | David G. Vlock |
| A capsule for dental amalgam comprises a reservoir portion which has an open end and which contains the silver or silver alloy powder component of the amalgam and a cap portion which has an open end which is meant for containing the liquid or mercury component of the amalgam. A preferably funnel-shaped partition is fixed to the cap portion for retaining the mercury component therein. An orifice is provided in the base of the funnel-shaped partition. The orifice is of a size to prevent leakage of the mercury when the capsule is exposed to accelerations which are below a threshold value and which are typical for storage and transport of the capsule. When the capsule is exposed to acceleration above this threshold value, for example, when the capsule is placed in an amalgamator for mixing the components with each other, the mercury is forced through the orifice and into the powder component. After the amalgam is prepared, the cap can be removed along with its partition to expose the amalgam which is immediately ready for use. | ||||||
| 64 | Container for dispensing dental compositions | US704272 | 1985-02-22 | US4674661A | 1987-06-23 | Wolf-Dietrich Herold |
| A container suitable for dispensing compositions, particularly dental preparations, has a dispensing tube (14) which constitutes a separate part and is supported for pivotal movement about a pivot axis extending transversely to the longitudinal axis (18) of the container. It is thereby possible to pivot the tube (14) to the operative position most favourable for the respective application, while there is no risk of a cross-sectional constriction or even breakage which might occur on bending. Furthermore, a closing position may be provided in which a bearing member (15) integrally formed with the tube (14) interrupts communication between the tube (14) and the container compartment (10). | ||||||
| 65 | Method and capsule for storing and mixing the two co-operative basic materials of dental amalgam and method in manufacturing the capsule | US256277 | 1981-04-23 | US4664257A | 1987-05-12 | Nils B. Nilson |
| The invention relates to a method and a capsule for the storage and mixing of the two co-reactive basic materials for dental amalgam. The capsule comprises an elastically bendable length of tube bent into V-shape with the arms each forming chambers and with the tip between the arms forming a point of separation between the chambers. Each of the basic materials is accommodated and stored in its own chamber and can be mixed by straightening out the length of tube, the ends of which are sealed, so that the point of separation is opened up, and by shaking the length of tube in its axial direction. The invention also relates to a method in manufacturing the capsule in which the tube length prior to bending into V-shape is pre-shaped in one section at the center of the length of the tube by providing two transverse points of compression which are mutually separated by an intervening section. | ||||||
| 66 | Mixing and discharge capsule | US861481 | 1986-05-09 | US4648532A | 1987-03-10 | Russell D. Green |
| A combination mixing and discharge capsule for storing separate ingredients which are to be mixed together prior to use and including a container body for one ingredient closed at one end by a slidable piston and the opposite end being displaceably received in a cup-shaped cap which forms a second compartment with a perforated wall of the container body opposite the end containing the piston for receiving a frangible pillow containing a liquid second ingredient to be mixed with the ingredient in the body. The cap has a discharge nozzle extending axially therefrom and when the cap is displaced farther onto the body the innermost wall of the pillow is burst to cause the discharge of the liquid ingredient through the perforated wall end into the container body for mixing with the ingredient therein. After mixing is completed, a puncturing rod is inserted into the nozzle to puncture the opposite wall of the pillow and, when the rod is withdrawn the piston is moved toward the perforated wall to effect discharge of the mixed ingredients through the nozzle. | ||||||
| 67 | Batch pack for silver filings for the preparation of dental amalgam | US743826 | 1985-06-12 | US4632243A | 1986-12-30 | Ernst Muhlbauer |
| A batch pack for silver filings is employed in the preparation of dental amalgam in a laboratory mixing apparatus. The batch pack comprises a foil bag which can be destroyed by the mixing vibration and a briquette or tablet of silver filings. The density of the briquette of silver filings is not more than about 8 gram per cubic centimeters or a pore volume of about 20 percent of the volume of the briquette. | ||||||
| 68 | Self activating amalgam capsule | US501209 | 1983-06-06 | US4557376A | 1985-12-10 | Robert L. Probst; William A. Groves |
| A two-piece, two chamber self-activating capsule having mercury in one chamber and metal powder in the other. In use, the capsule is shaken and the resulting force due to the inertia of the mercury forces its way through a normally-closed valve into the metal powder chamber, whereby the metal powder and mercury become triturated by the shaking and form dental amalgam for filling teeth. A pestle may be included to facilitate mingling and triturating the amalgam components. | ||||||
| 69 | Mixing capsule assembly | US641255 | 1984-08-16 | US4526472A | 1985-07-02 | Saul Zaltsman |
| A mixing capsule assembly, particularly for use in preparing dental amalgams, comprises an outer capsule for receiving one of the materials to be mixed, and an inner capsule to receive a second material to be mixed and to be enclosed within the outer capsule. The inner capsule includes two sections attachable together by complementary frictionally-engaging surfaces of conical configuration. The arrangement is such that when the inner capsule is impacted against an inner face of the outer capsule during the vibration of the assembly, the complementary surfaces are moved away from each other to permit some of the second material to pass between them and to mix with the material in the outer capsule; and when the inner capsule is impacted against the opposite inner face of the outer capsule, the complementary surfaces are moved back to block the passage of material between them. | ||||||
| 70 | Method and apparatus for storing, mixing and delivering dental amalgam | US461262 | 1983-01-26 | US4470505A | 1984-09-11 | Paul Korwin; Robert Korwin |
| An amalgam capsule includes two chambers separated by a piston detachably formed as a part of the capsule end cover. One compartment is formed in part by a resilient flange portion of the capsule which is deformable to provide communication of the chambers and to permit a mixing of the contents of the chambers in the larger of the chambers. Delivery of the mixed amalgam is accomplished by removing a cap from one end of the capsule to expose an aperture therein, and connecting the opposite cover end of the capsule to a syringe, the plunger of which detaches the piston from the capsule cover and drives the piston through the mixing chamber to eject the amalgam therefrom. | ||||||
| 71 | Dental capsule | US458888 | 1983-01-18 | US4450957A | 1984-05-29 | Gordon S. Cohen |
| A self-actuating dental capsule is provided which includes a rupturable container for the liquid component of a dental amalgam. The container is held in the capsule by a retaining sleeve or disk so that the amalgam can be immediately used by the dentist without the need to separate the container from the amalgam. The container and the retaining means can be formed as a unit prior to placement in the capsule. | ||||||
| 72 | Dentist's apparatus for storing and vibration mixing of amalgam components | US457159 | 1983-01-11 | US4433779A | 1984-02-28 | Alfred Schmid, Jr.; Hans M/u/ ller; Alexander P. Jaecklin |
| The present invention relates to a capsule for storing and vibration mixing of two component materials for dental application, particularly of dental amalgam components. The capsule encloses a mixing space in which a first component and a pestle are disposed. The pestle is in the form of a hollow body with a removable cover. The pestle serves as a container for a second component and has at least one opening. The opening permits the exit of the second component which opening is rendered passable as a result of a mixing vibration movement. | ||||||
| 73 | Capsule for the storage and vibration-mixing of two components particularly for dental purposes | US326606 | 1981-12-02 | US4396117A | 1983-08-02 | 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. | ||||||
| 74 | Ejector holder for capsule-like cartridge | US344254 | 1982-01-29 | US4384853A | 1983-05-24 | Richard E. Welsh |
| A manually operable ejector holder for effecting discharge of a capsule-like cartridge of cylindrical shape open at one end to receive a measured charge of material and provided with an annular flange at the open end, the other end being closed but provided with an angular discharge nipple and the holder having a cylindrical body provided with an ejecting plunger operated by a handle and a cooperative pivoted lever member. The forward end of the cylindrical body is partially cutaway in a radial direction for a limited distance longitudinally to provide a hollow seat to receive the flanged end of the cartridge and the seat having an undercut groove to receive the flange of said cartridge, and the sidewalls of the seat at the upper edges having limited flexibility and spaced apart a slightly less distance than the diameter of the cartridge body to effect a limited snap-acting connection of the cartridge to the holder. Several embodiments of lever members and support mechanism therefor are provided. | ||||||
| 75 | Ejector holder for capsule-like cartridge | US252558 | 1981-04-09 | US4330280A | 1982-05-18 | Emery W. Dougherty; Richard E. Welsh |
| A manually operable ejector holder for a loaded capsule-like cartridge of cylindrical shape open at one end and provided with an annular flange at the open end, the other end being closed but provided with an angular discharge nipple and the holder having a cylindrical body provided with an ejecting plunger operated by a pivoted lever-type handle member. The forward end of the cylindrical body being partially cutaway in a radial direction for a limited distance longitudinally to provide a hollow seat to receive the flanged end of the cartridge and the seat having an undercut groove to receive the flange of said cartridge, and the sidewalls of the seat at the upper edges being of limited flexibility and spaced apart a slightly less distance than the diameter of the cartridge body to effect a limited snap-acting connection of the cartridge to the holder. | ||||||
| 76 | Mixing container | US941866 | 1978-09-13 | US4215985A | 1980-08-05 | Bruno Madlener |
| A container construction for receiving substances adapted to combine with each other for producing viscous medical and dental medical preparations, especially amalgams, which includes: a chamber for receiving a flowable substance which after elimination of a separating wall element is adapted to be conveyed into a mixing chamber preferably containing a pulverous substance. From this mixing chamber the mixed preparation can be pressed out, e.g. by means of a piston. The mixing chamber is at least within the region of its discharging end formed by a bendable discharging tube which is surrounded by a rigid protective sleeve. | ||||||
| 77 | Dental alloy container | US933499 | 1978-08-14 | US4197943A | 1980-04-15 | Maurice M. Weikel |
| A dental alloy container is provided with an insert which includes a concave surface that is directed against the blind end of a receptacle to define an isolated, enclosed cavity, separate from the larger enclosure of the container. Access between the larger enclosure and the separate cavity normally exists, except when a threaded barrel is used to force the insert against the blind receptacle end to isolate the cavity. A cap on the container seals the larger enclosure. A drop of mercury can thereby be placed in the isolated cavity and maintained separate from a quantity of silver until it is desired to mix the mercury and silver, immediately prior to use, to form a dental alloy. | ||||||
| 78 | Device for storing, transporting and mixing reactive ingredients | US819236 | 1977-07-27 | US4182447A | 1980-01-08 | Ira Kay |
| A device for storing, transporting and mixing reactive ingredients, such as mercury and silver for dental amalgam, includes a thin, rupturable membrane dividing the two chambers of a capsular container into two non-communicating closed compartments, one for each of the reactive ingredients, the chamber of larger volume (major chamber) also including a pestle. Unlike conventional devices of this type, the membrane is ruptured substantially completely intact, i.e. without presenting any loosened or torn fragments of the membrane which could contaminate the mixed ingredients simply by inserting the capsule in an amalgamator or similar vibrating or shaking device. Since no manipulation of the capsule, such as telescoping, bending, twisting etc is required, mixing of the components can be performed with a minimum amount of effort.In an alternative embodiment, one of the substances to be mixed, such as silver powder for dental amalgam, is provided in the larger volume chamber in the form of a tablet or pellet and the pestle can be omitted. In this case, the tablet itself ruptures the membrane. | ||||||
| 79 | Disposable dental amalgam capsule | US10413 | 1979-02-08 | US4175658A | 1979-11-27 | Billy G. Moser; Otto (Bo) Suter, Jr. |
| A combination storage and mixing capsule capable of containing separately, certain materials, such as those used in dental restorative work, until such time as mixing and use of the composite is desired. The capsule includes two compartments and a valve effective to isolate the compartments when storing and to unite them when mixing. After mixing, a removable cap enclosing the end of one compartment is withdrawn to allow the prepared mixture to be removed. | ||||||
| 80 | Containers | US774950 | 1977-03-07 | US4167228A | 1979-09-11 | 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. | ||||||
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