Agitating – By movement of support for removable mixing chamber – Mixing chamber secured to support
Patent
1986-05-29
1989-04-04
Hornsby, Harvey C.
Agitating
By movement of support for removable mixing chamber
Mixing chamber secured to support
366111, 366124, 366240, 366602, B01F 1100, A61C 506
Patent
active
048181153
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a device to mechanically decompose a barrier which separates two or more mutually miscible ingredients and to mix the said ingredients, preferably a mixer for amalgam in capsules, the said device comprising first members to fixedly hold the said ingredients and second members to impart to the said ingredients a sufficiently rapid motion to accomplish the said barrier decomposition and mixing.
Known amalgam mixers are usually very large and clumsy, are driven electrically, vibrate powerfully and have a high noise level, as well as requiring accurate fixation of the capsule in which the mixable amalgam is located. Further, known mixers are usually placed so that the dentist is obliged to interrupt the work he is doing in order to move to the mixer, to insert an amalgam capsule and to stop the machine. Only after this can the dentist or dental nurse return to the interrupted work. When mixing of the amalgam is ready the dentist or nurse must once again interrupt what he or she is doing and walk to the mixer, remove the capsule and return to the patient. This walking back and forth repeatedly makes demands on the time not only of the dentist or nurse but also of the patient and thus costs large sums of money.
Known amalgam mixers also call for a relatively careful location and alignment and fixation of the capsule, which actions also take unnecessary and expensive time.
An object of the present invention is to provide a device which is simple and quick to use, which is quiet-running, which gives low or no self-propagating vibrations and which is small in size and thus possible to place in a suitable position in relation to the dentist and which is relatively simple and thus can be manufactured at a favourable price.
The invention is characterized in the type of device mentioned in the descriptive preamble in that the said first members comprise a closable space in which the said ingredients and said capsule respectively ar miscible and of which these and this respectively are aligned with the said second members, and in that the said second members are arranged to be started only when or after closing of the said closable space. In particular the invention, where the said second members comprise a piston and a return-fed sleeve with bottom, is characterized in that the said piston is arranged to be driven reciprocatingly largely in a rectilinear motion, in that the said return-fed sleeve with bottom is arranged to move essentially in the same motional direction as the piston and in that the said ingredients and capsule respectively are arranged placeable between the piston and the sleeve with bottom.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail below and with reference to the accompanying drawings, wherein
FIG. 1 shows a perspective view of the device in the invention placed as an example at the dentist's working place,
FIG. 2 shows how the device according the invention can be quickly mounted and removed for the purpose of facilitating cleaning thereof and
FIG. 3 shows an embodiment of the device according to the invention selected as an example.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The device according to the invention is sited advantageously to close to the dentist that he reaches the amalgam mixer 1 without any problems and can admit a capsule 2 from a capsule rack 3 located at the side of the mixer into a space 4 provided in the mixer 1, the said space being closable by means of a movable cover 5 and provided with, not closely illustrated, for example bowl-shaped sides to conduct the admitted capsule 2 to the wanted position in the space 4.
The device can for example be located below the arm 6 which supports the saliva suction device relative to a vertical post 7 of a dental chair and is supported rotatably relative to the latter by an arm 8 which is equipped to advantage with for instance a magnet 9 to hold the device in position relative to the arm 8 and with a quick-coupling 10 for connectio
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Hornsby Harvey C.
Machuga Joseph S.
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