Solid material comminution or disintegration – Apparatus – Hand support comminutor
Patent
1994-12-23
1996-12-24
Eley, Timothy V.
Solid material comminution or disintegration
Apparatus
Hand support comminutor
241102, 241199, 383117, A47J 4304
Patent
active
055867324
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a crushing and dispersing bag for mechanically crushing, comminuting and dispersing foodstuffs, soil or other samples.
BACKGROUND ART
Conventionally, a mortar was used for mechanically crushing and dispersing foodstuffs, soil or other samples. In the field of biochemistry, for the sake of microbiological examination or physiological examination, organic cell samples are mechanically crushed and dispersed to emulsify. Thus, the sample cells are so-called homogenized. For such homogenization, a sample and a dispersion medium are introduced into a cup. By rotating a screw inserted in the cup, the sample is crushed and dispersed. Such device is a so-called cup type homogenizer. Alternatively, a polyvinyl bag with the sample and the dispersion medium sealed therein is inserted between a pair of plates, which slide in the direction of a normal line and approach to or depart from each other. Pressure applied by the pair of plates crushes and disperses the sample. By using this (for example the trade name Stomacher generally distributed by Gunze Sangyo Kabushiki Kaisha) or other, the sample is crushed and dispersed efficiently.
However, when the cup type homogenizer is used, the cup needs to be cleaned or sterilized before the sample is introduced into the cup. Therefore, when a number of samples are crushed and dispersed, a number of cups need to be prepared, which is troublesome.
Since a disposable polyvinyl bag is used for Stomacher, a number of samples can be efficiently crushed and dispersed. However, Stomacher is so large that it cannot be transported. Additionally, since just pressure is applied to the bag, Stomacher is inappropriate for crushing and dispersing octopuses, squids or other resilient samples. Further, the cup type homogenizer and Stomacher are both expensive.
Wherefore, the object of the present invention is to easily, efficiently and effectively crush and disperse various samples without using an expensive device.
DISCLOSURE OF THE INVENTION
To attain the aforementioned object, the present invention provides a crushing, comminuting and dispersing bag having:
a synthetic resin bag member provided with file-like unevenness or irregularities on the inner surface thereof, and
a sealing member for sealing the opening of said synthetic resin bag member.
In operation of the aforementioned structure of the present invention, the sample to be crushed and the dispersion medium are introduced into the synthetic resin bag member and the opening in the bag member is sealed with the sealing member. Subsequently, by squeezing the bag member, the sample is crushed and comminuted by the file-like irregularities provided on the inner surface of the bag member. The sample can thus be crushed and dispersed in the dispersion medium.
The present invention requires no expensive devices. Just by squeezing the bag member with hands or other means, the sample can be easily crushed, comminuted and dispersed. Further in the present invention, the sample rubs against the irregularities and is thus mechanically ground. Therefore, octopuses, squids or other resilient samples can be effectively crushed, comminuted and dispersed.
Additionally, the present invention has a simple structure and is inexpensively manufactured of synthetic resin or other material. Further, the bag according to the present invention can be easily transported and stored. With a number of disposable bags, a number of samples can be efficiently crushed and dispersed.
Especially, since the file-like irregularities are provided by laying a net member on the inner surface of the synthetic resin bag member, the bag of the present invention can be easily manufactured just by adding the net member laminating step to the manufacturing process of the synthetic resin bag provided with a sealing member.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view showing the structure of a crushing and dispersing bag embodying the invention, and
FIG. 2 is a cross-sectional view also showing the structure of the cru
REFERENCES:
patent: 2413151 (1946-12-01), Dell
patent: 2664675 (1954-01-01), Monica
patent: 3550839 (1970-12-01), Clayton et al.
patent: 4196534 (1980-04-01), Shibamoto
patent: 4285998 (1981-08-01), Thibodeau
Nishi Shonosuke
Yamauchi Hiroshige
Eley Timothy V.
Shimakyu Chemical Co. Ltd.
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