Patent Application
20070042073
1. Field of the Invention
The present invention relates to a dental flask system, and more particularly, the present invention relates to a multi dental flask system.
2. Description of the Prior Art
It is generally desired to form dentures of plastic, and for this result it is necessary to use heat in the process. For example, when acrylic plastic is used, a curing step is required for the polymerization of the plastic. This takes place after the acrylic plastic has been formed into the specific shape of the denture and placed into a dental flask. Unfortunately, there is no system for processing multiple flasks simultaneously. Thus, there exists a need for a system for processing multiple dental flasks simultaneously.
Numerous innovations for dental flasks and related devices have been provided in the prior art. Even though these innovations may be suitable for the specific individual purposes to which they address, they each differ in structure and/or operation and/or purpose from the present invention in that they do not teach a system for processing multiple dental flasks simultaneously.
FOR EXAMPLE, U.S. Pat. No. 3,635,630 to Greene teaches an apparatus and method for forming dentures wherein plastic inserts are placed within metal flask members to hold a dental mold therein. Acrylic plastic is then inserted in place of the mold to form the denture within the plastic inserts. The inset unit is then removed from the metal flask and held by a plastic clamping apparatus and the plastic denture is then cured in an ultrahigh frequency oven.
ANOTHER EXAMPLE, U.S. Pat. No. 3,988,094 to McGowan et al. teaches a multi-section dental flask for denture-making which includes a pair of threaded, longitudinally shiftable pins received in stepped, communicating bores in the anterior region of the primary closure sections of the flask to permit selective movement of the pins between a position precluding significant relative movement of the flask sections and a position permitting limited degrees of such movement. The pins are shifted to their movement-locking positions during all preliminary operations of the denture-making process, and thereafter moved to their recessed positions in order to ensure accurate reproduction of the denture model by compensating for the characteristic expansion and contraction of the denture material during hardening thereof. In anther embodiment, a flask lid is utilized in conjunction with compression bolts for resiliently holding the resilient three-piece flask together during the curing process without the need for a separate spring to compress as has heretofore been required. The flask lid preferably includes a releasably secured metallic ejector block which facilitates dislodgement of the finished denture from the hardened investment material within the flask.
STILL ANOTHER EXAMPLE, U.S. Pat. No. 4,546,261 to Gonser et al. teaches an apparatus and method for providing light curing of dentures and like materials. The denture is preferably of a material which is hardened or polymerized when exposed to visible light. An array of light sources is provided relative to a rotatable platform on which the dentures are placed. Each light source provides a substantially collimated light beam directed to optimally intercept the rotating denture. There are preferably four such light sources. Each light source has a visible light bandpass characteristic and directed at an angle within 25°-45° of the platform surface. The light beams are directed at the platform surface in overlapping fashion so as to provide continuous incident light on the denture during each cycle of rotation.
YET ANOTHER EXAMPLE, U.S. Pat. No. 4,839,521 to Oppawsky teaches a treatment chamber as an accessory device for an illuminator for the photopolymerization of dental plastic. The chamber is both light-tight and has at least one movable chamber wall. A light conductor is provided for the light input.
STILL YET EXAMPLE, U.S. Pat. No. 5,338,192 to Weber teaches an expander for a three part, Hanau dental flask to add vertical height to the flask when the total height of the wax model of a prosthesis and mold material exceeds the normal height of the flask. The flask expander requires no alteration or modification of the standard dental flask, and sandwiches in between the existing flask base and body or between the flask body and lid.
It is apparent that numerous innovations for dental flasks and related devices have been provided in the prior art that are adapted to be used. Furthermore, even though these innovations may be suitable for the specific individual purposes to which they address, they would not be suitable for the purposes of the present invention as heretofore described because they do not teach a system for processing multiple dental flasks simultaneously.
ACCORDINGLY, AN OBJECT of the present invention is to provide a multi dental flask system that avoids the disadvantages of the prior art.
ANOTHER OBJECT of the present invention is to provide a multi dental flask system that is simple to use.
BRIEFLY STATED, STILL ANOTHER OBJECT of the present invention is to provide a multi dental flask system. The system includes a boot, at least two dental flasks, a sleeve, and a wrench. The boot is affixed to a surface. The at least two dental flasks are stacked one on top of the other. A lowermost dental flask of the at least two dental flasks is non-rotatably received in the boot. The sleeve is replaceably affixed to the lowermost dental flask of the at least two dental flasks and houses the other at least one dental flask of the at least two dental flasks so as to allow the at least two dental flasks to be processed simultaneously. The wrench receives the sleeve and replaceably affixes the sleeve to the lowermost dental flask.
The novel features which are considered characteristic of the present invention are set forth in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of the specific embodiments when read and understood in connection with the accompanying drawing.
The figures of the drawing are briefly described as follows:
Referring now to the figures, in which like numerals indicate like parts, and particularly to
The multi dental flask system 10 comprises a boot 12, at least two dental flasks 14, and a sleeve 16. The boot 12 is for affixing to a surface 18. The at least two dental flasks 14 are stacked one on top of the other, with a lowermost dental flask 20 being non-rotatably received in the boot 12. The sleeve 16 is replaceably affixed to the lowermost dental flask 20 and houses the other at least one dental flask 22 so as to allow the at least two dental flasks 14 to be processed simultaneously.
The multi dental flask system 10 further comprises a wrench 23. The wrench 23 receives the sleeve 16, and replaceably affixes the sleeve 16 to the lowermost dental flask 20.
The specific configuration of the boot 12 can best be seen in
The boot 12 is cupped-shaped so as to be able to receive the lowermost dental flask 20, and has a side wall 24 and a plurality of attachments 26 for affixing the boot 12 to the surface 18. The plurality of attachments 26 of the boot 12 are preferably a plurality of tabs 28, numbering preferably three, extending radially outwardly from the boot 12, and having through bores 30 therethrough, respectively, for receiving screws or the like for affixing the boot 12 to the surface 18. The plurality of tabs 28 of the boot 12 are horizontally-oriented and spaced-apart from each other, preferably equally.
The side wall 24 of the boot 12 is vertically-oriented and has an interior surface 32. The interior surface 32 of the side wall 24 of the boot 12 is provided with a plurality of female portions 34, preferably a plurality of blind slots 36, numbering preferably two. The plurality of blind slots 36 in the side wall 24 of the boot 12 are vertically-oriented and spaced-apart from each other, preferably equally.
The specific configuration of each dental flask 14 can best be seen in
Each dental flask 14 is cupped-shaped and has a body 37 with a side wall 38 defining an open top 39. The side wall 38 of the body 37 of each dental flask 14 is vertically-oriented and has an exterior surface 40. The exterior surface 40 of the side wall 38 of the body 37 of each dental flask 14 is provided with a plurality of male portions 42, preferably a plurality of protrusions 43, preferably numbering three. The plurality of protrusions 43 on the side wall 38 of the body 37 of each dental flask 14 are vertically-oriented, spaced-apart form each other, preferably equally, and cooperate with the plurality of blind slots 36 in the side wall 24 of the boot 12, respectively, so as to allow the lowermost dental flask 20 to be non-rotatably received in the boot 12.
The exterior surface 40 of the side wall 38 of the body 37 of each dental flask 14 is further provided with threads 44. The threads 44 on the body 37 of each dental flask 14 extend therearound and are disposed above the plurality of protrusions 43 on the side wall 38 of the body 37 of an associated dental flask 14.
The side wall 38 of the body 37 of each dental flask 14 further has an interior surface 46. The interior surface 46 of the side wall 38 of the body 37 of each dental flask 14 is provided with a plurality of female portions 48, preferably a plurality of blind slots 50, numbering preferably two. The plurality of blind slots 50 in the side wall 38 of the body 37 of each dental flask 14 are vertically-oriented, spaced-apart form each other, preferably equally, and depend from the open top 39 of the body 37 of an associated dental flask 14.
Each dental flask 14 further has a bottom 51 and a knock-out disk 53. The knock-out disk 53 of each dental flask 14 sits in an associated dental flask 14, on the bottom 51 of the associated dental flask 14, for facilitating removal of contents of the associated dental flask 14.
Each dental flask 14 further has a lid 52. The lid 52 of each dental flask 14 selectively closes the open top 39 of the body 37 of an associated dental flask 14.
The lid 52 of each dental flask 14 is provided with a plurality of male portions 54, preferably a plurality of tabs 56, preferably numbering two. The plurality of tabs 56 on the lid 52 of each dental flask 14 depend vertically therefrom, are spaced-apart form each other, preferably equally, and cooperate with the plurality of blind slots 50 in the side wall 38 of the body 37 of an associated dental flask 14, respectively, so as to allow the lid 52 of each dental flask 14 to be non-rotatably received by the body 37 of an associated dental flask 14.
The specific configuration of the sleeve 16 can best be seen in
The upper disk 60 of the sleeve 16 is provided with a plurality of protrusions 68. The plurality of protrusions 68 of the sleeve 16, preferably three in number, extend radially outwardly therefrom, and are spaced therearound, preferably equally.
The specific configuration of the wrench 23 can best be seen in
The wrench 23 has a body 70 and a handle 72. The handle 72 of the wrench 23 extends radially outwardly from the body 70 of the wrench 23.
The body 70 of the wrench 23 is inverted cup-shaped defined by a side wall 74 having an open bottom 75, is horizontally-oriented, and replaceably receives the upper disk 60 of the sleeve 16 to rotate therewith.
The side wall 74 of the body 70 of the wrench 23 has an interior surface 76. The interior surface 76 of the side wall 74 of the body 70 of the wrench 23 is provided with a plurality of female portions 78, preferably a plurality of blind slots 80, numbering preferably three. The plurality of blind slots 80 in the side wall 74 of the body 74 of the wrench 23 are vertically-oriented, spaced-apart form each other, preferably equally, extend from the open bottom 75 of the body 70 of the wrench 23, and cooperate with the plurality of protrusions 68 of the sleeve 16, respectively, so as to allow the wrench 23 to non-rotatably receive the sleeve 16 and rotate therewith to thread and unthread the sleeve 16 onto and off of the lowermost dental flask 20.
It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of constructions differing from the types described above.
While the invention has been illustrated and described as embodied in a multi dental flask system, however, it is not limited to the details shown, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute characteristics of the generic or specific aspects of this invention.
