JPS63202Y2 - - Google Patents
Info
- Publication number
- JPS63202Y2 JPS63202Y2 JP1981195961U JP19596181U JPS63202Y2 JP S63202 Y2 JPS63202 Y2 JP S63202Y2 JP 1981195961 U JP1981195961 U JP 1981195961U JP 19596181 U JP19596181 U JP 19596181U JP S63202 Y2 JPS63202 Y2 JP S63202Y2
- Authority
- JP
- Japan
- Prior art keywords
- liquid level
- electrode
- bottle
- pot
- display device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000037431 insertion Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 239000000872 buffer Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Thermally Insulated Containers For Foods (AREA)
Description
【考案の詳細な説明】
本考案は液量表示装置付ポツトに関するもので
ある。[Detailed Description of the Invention] The present invention relates to a pot with a liquid level display device.
従来、中瓶内の液量を電気的に検出して、外部
に表示するようにした液量表示装置が種々提案さ
れている。例えば、中瓶内に一対の電極を垂下さ
せ、ポツト頂部の操作部材に連動するスイツチを
介して両電極間に電圧を印加し、中瓶内の液体が
一定量以上あるときは発光素子を連続点灯させ、
一定量未満のときには発光素子を点滅させるよう
にしたものが提案されている（実開昭56−17023
号公報）。 Conventionally, various liquid level display devices have been proposed that electrically detect the liquid level in a medium bottle and display it externally. For example, a pair of electrodes is suspended inside a medium bottle, and a voltage is applied between the electrodes via a switch that is linked to an operating member at the top of the pot.When there is a certain amount of liquid in the medium bottle or more, a light emitting element is activated continuously. light it up,
A device has been proposed in which the light emitting element blinks when the amount is less than a certain amount (Utility Model No. 56-17023).
Publication No.).
ところが、この場合には一対の電極の中栓から
垂設しているため、中栓内に導線を配線しかつ中
栓の上面と蓋体の下面とに互いに接離する端子を
設けなければならず、配線構造が複雑になると共
に、中栓の上面と蓋体の上面とに設けた端子は蒸
気等水分が付着しやすい箇所にあるため、絶縁不
良の問題もあつた。さらに、液量表示ランプであ
る発光素子は、配線上、蓋体に設けざるを得ない
が、エアーポツトの場合、蓋体内にはエアーポン
プが収容されるため、液量表示ランプ等液量表示
回路や電源である電池を収容するスペースがな
い。したがつて、ランプを含む液量表示回路や電
池をポツト本体側に設けるのがスペース上好まし
い。 However, in this case, since a pair of electrodes are installed vertically from the inner plug, it is necessary to route the conductor inside the inner plug and provide terminals that connect and separate from each other on the upper surface of the inner plug and the lower surface of the lid. First, the wiring structure became complicated, and the terminals provided on the top surface of the inner stopper and the top surface of the lid body were located at locations where moisture such as steam was likely to adhere, resulting in the problem of poor insulation. Furthermore, the light emitting element that is the liquid level indicator lamp has to be installed in the lid body due to wiring, but in the case of an air pot, the air pump is housed inside the lid body, so the liquid level display circuit such as the liquid level indicator lamp etc. There is no space to accommodate batteries or batteries. Therefore, it is preferable in terms of space to provide a liquid level display circuit including a lamp and a battery on the pot body side.
本考案はかかる従来の欠点に鑑みてなされたも
ので、配線構造が簡単でかつ絶縁不良の問題を解
消でき、液量表示回路や電池をポツト本体側に設
けることができる液量表示装置付ポツトを提供す
ることを目的とする。 The present invention was developed in view of the drawbacks of the conventional pot, and it is a pot with a liquid level display device that has a simple wiring structure, solves the problem of poor insulation, and allows the liquid level display circuit and battery to be installed on the pot body side. The purpose is to provide
以下、本考案を一実施例である添付図面にした
がつて説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.
図面において、１はポツト本体を構成する外
装、２は外装内部に収容された中瓶、３は外装の
上端に載置固定された肩体、４は肩体３の中央孔
に嵌着された中栓、５は肩体の上部にヒンジ部６
を介して開閉自在に設けられ、内部にエアーポン
プ７を内蔵した蓋体、８は外装の前面部に取付け
られた注出部カバー、９は外装の後面部に取付け
られ、電池１０を内蔵した電池ボツクスである。 In the drawing, 1 is an exterior that constitutes the pot body, 2 is a medium bottle housed inside the exterior, 3 is a shoulder body placed and fixed on the upper end of the exterior, and 4 is fitted into the center hole of the shoulder body 3. The inner plug, 5, has a hinge part 6 on the upper part of the shoulder body.
8 is a spout cover attached to the front of the exterior, and 9 is attached to the rear of the exterior, and has a built-in battery 10. It's a battery box.
上記中瓶２の口部と肩体３との間にはシール部
材１１が設けられており、このシール部材は第２
図に示すように、中瓶２の口部外面に沿う口ゴム
１２と肩体３の下面に沿うリング板状のシール板
１３とからなり、このシール板１３には第３図に
示すごとく内外周に貫通した挿通孔１３ａが穿設
され、この挿通孔１３ａに液量検出用の電極１４
が挿通されている。上記口ゴム１２とシール板１
３とは肩体３と中瓶２の口部との間で挟着され、
肩体３と中瓶２との隙間および上記挿通孔１３ａ
は完全密閉されている。上記電極１４は例えば４
本の導線１５ａ〜１５ｄを並設して絶縁材１６で
被覆したもので、電極１４の一端側は中瓶４内に
垂下し、かつ導線１５ａ〜１５ｄの先端が上下４
箇所で露出し、これら導線は長尺なものから順に
基準電極、1/4液量検出電極、1/2液量検出電極、
３／４液量検出電極となつている。上記導線１５ａ
〜１５ｄ、は例えばステンレス鋼などの剛性を有
する導電線からなり、これら導線は中瓶２の内面
に沿うように成形されているため、上記各導線の
先端位置を一定位置に設定でき、液量検出が正確
となる。上記電極１４の他端側にはコネクタ１７
が設けられ、このコネクタ１７に後記する液量表
示装置のコネクタ１８が差込接続される。 A seal member 11 is provided between the mouth of the medium bottle 2 and the shoulder body 3, and this seal member
As shown in the figure, it consists of a mouth rubber 12 along the outer surface of the mouth of the medium bottle 2 and a ring plate-shaped sealing plate 13 along the lower surface of the shoulder body 3. An insertion hole 13a penetrating the circumference is formed, and an electrode 14 for liquid level detection is inserted into this insertion hole 13a.
is inserted. The above mouth rubber 12 and seal plate 1
3 is sandwiched between the shoulder body 3 and the mouth of the medium bottle 2,
Gap between shoulder body 3 and medium bottle 2 and the above-mentioned insertion hole 13a
is completely sealed. The electrode 14 is, for example, 4
Conductive wires 15a to 15d are arranged side by side and covered with an insulating material 16, one end of the electrode 14 hangs down inside the medium bottle 4, and the tips of the conductive wires 15a to 15d are arranged in the upper and lower directions.
These conductors are exposed at certain points, and these conductors, in order from the longest one, are the reference electrode, 1/4 liquid volume detection electrode, 1/2 liquid volume detection electrode,
It serves as a 3/4 liquid volume detection electrode. The above conducting wire 15a
~15d are made of rigid conductive wires such as stainless steel, and these conductive wires are formed along the inner surface of the medium bottle 2, so the tip position of each conductor wire can be set at a constant position, and the liquid volume can be adjusted. Detection becomes accurate. A connector 17 is provided at the other end of the electrode 14.
is provided, and a connector 18 of a liquid level display device to be described later is inserted and connected to this connector 17.
なお、上記シール板１３の挿通孔１３ａは、例
えば電極１４の断面と同形状の金具をインサート
成形した後、この金具を抜き取ることにより形成
できる。また、電極１４を中瓶２の内面に沿わせ
るためには、上記のようにすべての導線を剛性材
料で構成したものの他、基準電極となる最も長尺
な導線１５ａのみをステンレス、タングステンま
たはニツケル等の剛性材料で構成し、他の導線は
アルミニウム線又は長尺な導線１５ａと同材質で
細径な比較的軟かい材料で構成してもよく、さら
にはこれら導線の他に補強用の剛性線を電極１４
の側部に一体に設けてもよい。 The insertion hole 13a of the seal plate 13 can be formed, for example, by insert-molding a metal fitting having the same shape as the cross section of the electrode 14, and then removing this metal fitting. In addition, in order to make the electrode 14 follow the inner surface of the medium bottle 2, in addition to making all the conductive wires of a rigid material as described above, only the longest conductive wire 15a, which will serve as the reference electrode, must be made of stainless steel, tungsten, or nickel. The other conducting wires may be made of an aluminum wire or a relatively soft material that is made of the same material as the long conducting wire 15a and has a small diameter. wire to electrode 14
It may be provided integrally on the side of the
上記注出部カバー８の内部には、液量表示回路
を実装したプリント基板２０を保持するホルダ１
９と、注液口を中栓４の注液管４ａより下方に延
長する導水管２４とが取付けられている。上記プ
リント基板２０には４個の表示素子２１ａ〜２１
ｄが設けられており、これら表示素子は液位の変
化に応じて点灯あるいは消灯して液量を表示する
ものである。例えば中瓶２内の液量が満量時には
すべての表示素子が点灯し、液量が満量時の3/4，
1/2，1/4へと減少するにつれて上方の表示素子か
ら順に消灯する。プリント基板２０の下端部には
スイツチ２２が取付けられ、このスイツチ２２を
ボタン２３により押圧操作することにより、電池
ボツクス９内に収容された電池１０から液量表示
回路への給電をオン、オフする。 Inside the spouting part cover 8, there is a holder 1 holding a printed circuit board 20 on which a liquid level display circuit is mounted.
9, and a water guide pipe 24 that extends the liquid injection port downward from the liquid injection pipe 4a of the inner stopper 4. The printed circuit board 20 has four display elements 21a to 21.
d are provided, and these display elements display the liquid amount by turning on or off according to changes in the liquid level. For example, when the liquid level in the medium bottle 2 is full, all display elements will light up, and when the liquid level is 3/4 full,
As the number decreases to 1/2 and 1/4, the display elements turn off in order from the upper display element. A switch 22 is attached to the lower end of the printed circuit board 20, and by pressing the switch 22 with a button 23, the power supply from the battery 10 housed in the battery box 9 to the liquid level display circuit is turned on and off. .
第４図は液量表示装置の一例を示し、基準電極
１５ａは電源（電池）１０の一端に、液量検出電
極１５ｂ〜１５ｄは各々抵抗RR1〜RR3及びスイ
ツチ２２を介して電源１０の他端に接続されてい
る。各表示素子２１ｂ〜２１ｄは一端をスイツチ
２２を介して電源１０に接続されると共に、保護
抵抗RL1〜RL3を介して非反転型バツフア（又は
インバータ）２５〜２７の出力端子に接続され、
各バツフアの入力端子は対応する液量検出電極１
５ｂ〜１５ｄに接続されている。電源１０のチエ
ツク及び液位がL1以下、すなわちほぼ空である
ことを表示するため、表示素子２１ａと保護抵抗
RLOとの直列回路がスイツチ２２を介して電源に
接続されている。 FIG. 4 shows an example of a liquid level display device, in which a reference electrode 15a is connected to one end of a power source (battery) 10, and liquid level detection electrodes 15b to 15d are connected to the power source 10 through resistors R R1 to R R3 and switches 22, respectively. connected to the other end. Each of the display elements 21b to 21d has one end connected to the power supply 10 via a switch 22, and is also connected to the output terminals of non-inverting buffers (or inverters) 25 to 27 via protective resistors R L1 to R L3 ,
The input terminal of each buffer is the corresponding liquid volume detection electrode 1.
5b to 15d. In order to check the power supply 10 and display that the liquid level is below L1 , that is, almost empty, the display element 21a and the protective resistor are connected.
A series circuit with R LO is connected to the power supply via switch 22 .
なお、RS1〜RS3は基準電極１５ａと液量検出電
極１５ｂ〜１５ｄ間の抵抗に比べて十分に大き
く、通常1MΩ程度に設定される。 Note that R S1 to R S3 are sufficiently larger than the resistance between the reference electrode 15a and the liquid amount detection electrodes 15b to 15d, and are usually set to about 1 MΩ.
上記構成の回路において、中瓶２内にL4のレ
ベルまで湯が入れてあり、各電極１５ｂ〜１５ｄ
が図に示すようにL1〜L3のレベルで終端してい
るものとすると、スイツチ２２がオンされると、
表示素子２１ａに電源１０が接続され点灯すると
共に、基準電極１５ａと液量検出電極１５ｂ〜１
５ｄとは数ＫΩの抵抗として作用する湯によつて
電気的に接続され、バツフア２５〜２７への入力
電圧がほぼ0Vになるため、その出力電圧が低レ
ベル（0V）となつて表示素子２１ｂ〜２１ｄも
すべて連続点灯する。湯が中瓶２から注出されて
その残量がL2とL3との中間レベルになつた場合、
スイツチ２２を入れると表示素子２１ａ〜２１ｃ
が連続点灯することは前と同じであるが、液量検
出電極１５ｄが基準電極１５ａと接続されていな
いため、バツフア２７の入力電圧は電源電圧（Ｖ
ボルト）となり、従つてその出力電圧も高レベル
（Ｖボルト）となつて表示素子２１ｄの両端間の
電位差が０となり、表示素子２１ｄは点灯しな
い。このことから、使用者は湯がL2とL3との間
のレベルにあることを知ることができる。このよ
うにして、中瓶２内の湯の量が減少していくにつ
れて表示素子も２１ｃ，２１ｄの順に点灯しなく
なり、湯の残量がL1レベルより下になると表示
素子２１ａのみが連続点灯し、他の表示素子２１
ｂ〜２１ｄは点灯しない。 In the circuit with the above configuration, hot water is filled in the medium bottle 2 up to the level L4 , and each electrode 15b to 15d
Assuming that the signal terminates at the level L 1 to L 3 as shown in the figure, when the switch 22 is turned on,
The power supply 10 is connected to the display element 21a and it lights up, and the reference electrode 15a and the liquid amount detection electrodes 15b to 1
5d is electrically connected to the buffers 25 to 27 by hot water acting as a resistance of several kilohms, and since the input voltage to the buffers 25 to 27 becomes approximately 0V, the output voltage becomes a low level (0V) and the display element 21b -21d are also all lit continuously. When hot water is poured out from medium bottle 2 and the remaining amount is at an intermediate level between L 2 and L 3 ,
When the switch 22 is turned on, the display elements 21a to 21c
is lit continuously as before, but since the liquid level detection electrode 15d is not connected to the reference electrode 15a, the input voltage of the buffer 27 is the power supply voltage (V
Therefore, the output voltage becomes a high level (V volts), and the potential difference between both ends of the display element 21d becomes 0, so that the display element 21d does not light up. From this, the user can know that the hot water is at a level between L 2 and L 3 . In this way, as the amount of hot water in the medium bottle 2 decreases, the display elements 21c and 21d stop lighting up in that order, and when the remaining amount of hot water falls below the L1 level, only the display element 21a lights up continuously. and other display elements 21
b to 21d do not light up.
上記実施例ではシール部材１１を口ゴム１２と
シール板１３との２部品で構成し、シール板１３
に電極１４を貫通させるようにしたが、シール部
材を１部品で構成してもよい。ただ、上記のよう
に２部品で構成しかつ形状の簡単なシール板１３
に電極１４を貫通させるようにすれば、成形が容
易となるばかりでなく、シール板１３を従来公知
の口ゴム１２に追加するだけで済み、口ゴム１２
は従来品を共用できる。加えて、シール板１３の
材質や硬度等を、口ゴム１２とは別個に、シール
板としての機能上最適な特性のものを選ぶことが
できる。このとき、シール部材全体の厚みは若干
増大するが、中瓶２の締め上げ代によりこの増加
分は吸収できる。また、電極１４とシール部材１
１との取付構造は、上記のように挿通孔１３ａに
電極１４を挿通するもののほか、電極１４をシー
ル部材に一体形成してもよく、あるいは２分割し
たシール部材の間に電極１４を挟着するようにし
てもよい。 In the above embodiment, the sealing member 11 is composed of two parts, the mouth rubber 12 and the sealing plate 13.
Although the electrode 14 is made to pass through the sealing member, the sealing member may be composed of one component. However, as mentioned above, the seal plate 13 is composed of two parts and has a simple shape.
If the electrode 14 is penetrated through the mouth rubber 12, not only will molding become easier, but also the seal plate 13 can be added to the conventionally known mouth rubber 12.
can share conventional products. In addition, the material, hardness, etc. of the seal plate 13 can be selected separately from the mouth rubber 12 to have optimal characteristics in terms of function as a seal plate. At this time, the thickness of the entire sealing member increases slightly, but this increase can be absorbed by the tightening allowance for the medium bottle 2. In addition, the electrode 14 and the seal member 1
In addition to the structure in which the electrode 14 is inserted into the insertion hole 13a as described above, the electrode 14 may be integrally formed with the seal member, or the electrode 14 may be sandwiched between two separate seal members. You may also do so.
なお、本考案はエアーポツトに限らず、把手を
持つて注液するいわゆるハンドポツトにも適用で
きる。 Note that the present invention is applicable not only to air pots but also to so-called hand pots in which liquid is poured by holding the handle.
以上の説明で明らかなように、本考案によれ
ば、シール部材に液量検出用の電極を貫通させて
設けたので、配線をスペースの余裕のあるポツト
本体内部で行なうことができ、配線が簡単になる
と共に、絶縁不良等の心配がなく、かつ液量表示
装置や電池等をポツト本体側に設けることもでき
る。 As is clear from the above explanation, according to the present invention, since the sealing member is provided with an electrode for detecting the liquid level, the wiring can be done inside the pot body where there is sufficient space. It is simple, there is no need to worry about poor insulation, and the liquid level display device, battery, etc. can be provided on the pot body side.
第１図は本考案にかかる液量表示装置付ポツト
の一部断面側面図、第２図は第１図のＡ部拡大
図、第３図は電極とシール板との分解斜視図、第
４図は液量表示装置の回路図の一例である。
１……外装、２……中瓶、３……肩体、１０…
…電池、１１……シール部材、１２……口ゴム、
１３……シール板、１３ａ……挿通孔、１４……
電極、１５ａ〜１５ｄ……導線。
Fig. 1 is a partially sectional side view of a pot with a liquid level display device according to the present invention, Fig. 2 is an enlarged view of part A in Fig. 1, Fig. 3 is an exploded perspective view of an electrode and a seal plate, and Fig. 4 The figure is an example of a circuit diagram of a liquid level display device. 1...Exterior, 2...Medium bottle, 3...Shoulder body, 10...
... Battery, 11 ... Seal member, 12 ... Mouth rubber,
13... Seal plate, 13a... Insertion hole, 14...
Electrodes, 15a to 15d...conducting wires.
Claims (1)
部材に液量検出用電極を内外に貫通させて設
け、この電極の一端側を中瓶内に垂下させると
共に、電極の他端側を液量表示装置に接続した
ことを特徴とする液量表示装置付ポツト。 (2) 上記シール部材は中瓶の口部外面に沿う口ゴ
ムと肩体下面に沿うリング状のシール板とから
なり、このシール板に上記液量検出用電極を貫
通させて設けたことを特徴とする実用新案登録
請求の範囲第１項記載の液量表示装置付ポツ
ト。 (3) 上記電極を剛性を有する導電線で構成し、中
瓶内に垂下する電極の一端側を中瓶の内面形状
に沿うように成形したことを特徴とする実用新
案登録請求の範囲第１項又は第２項記載の液量
表示装置付ポツト。[Scope of Claim for Utility Model Registration] (1) A liquid level detection electrode is provided to penetrate the seal member sandwiched between the shoulder body and the mouth of the inner bottle, and one end of this electrode is inserted into the inner bottle. 1. A pot with a liquid level display device, characterized in that the pot is suspended into a bottle and the other end of an electrode is connected to a liquid level display device. (2) The sealing member consists of a rubber cap that runs along the outer surface of the mouth of the medium bottle and a ring-shaped sealing plate that runs along the lower surface of the shoulder body, and the liquid level detection electrode is provided through this sealing plate. A pot with a liquid level display device according to claim 1 of the registered utility model. (3) Utility model registration claim 1, characterized in that the electrode is made of a rigid conductive wire, and one end of the electrode that hangs down inside the bottle is shaped so as to follow the inner shape of the bottle. A pot with a liquid level display device according to item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19596181U JPS58101140U (en) | 1981-12-28 | 1981-12-28 | Pot with liquid level display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19596181U JPS58101140U (en) | 1981-12-28 | 1981-12-28 | Pot with liquid level display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58101140U JPS58101140U (en) | 1983-07-09 |
| JPS63202Y2 true JPS63202Y2 (en) | 1988-01-06 |
Family
ID=30109217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19596181U Granted JPS58101140U (en) | 1981-12-28 | 1981-12-28 | Pot with liquid level display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58101140U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162259A (en) * | 1978-06-13 | 1979-12-22 | Mitsubishi Electric Corp | Thermobottle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55143131U (en) * | 1979-04-03 | 1980-10-14 | ||
| JPS56176638U (en) * | 1980-05-30 | 1981-12-26 |
-
1981
- 1981-12-28 JP JP19596181U patent/JPS58101140U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162259A (en) * | 1978-06-13 | 1979-12-22 | Mitsubishi Electric Corp | Thermobottle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58101140U (en) | 1983-07-09 |
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