JP3576962B2 - 1 can 2 circuit bath kettle - Google Patents

1 can 2 circuit bath kettle Download PDF

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Publication number
JP3576962B2
JP3576962B2 JP2000345767A JP2000345767A JP3576962B2 JP 3576962 B2 JP3576962 B2 JP 3576962B2 JP 2000345767 A JP2000345767 A JP 2000345767A JP 2000345767 A JP2000345767 A JP 2000345767A JP 3576962 B2 JP3576962 B2 JP 3576962B2
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JP
Japan
Prior art keywords
hot water
water supply
bath
circulation
circulation pump
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 - Fee Related
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JP2000345767A
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Japanese (ja)
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JP2001165502A (en
Inventor
幹夫 越智
義則 川崎
修 石倉
政弘 服部
克憲 田中
Original Assignee
東陶機器株式会社
東陶ユプロ株式会社
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Publication of JP2001165502A publication Critical patent/JP2001165502A/en
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Description

【0001】
【産業上の利用分野】
本発明は、1缶2回路式風呂釜に関するものである。
【0002】
【従来の技術】
従来、上記を目的とした1缶2回路式風呂釜として、実公昭62−25614号公報に記載されたものがあり、かかる1缶2回路式風呂釜Bは、図6に示すように、フィン51を共用して、当該フィン51の上下部に給湯用吸熱管52、風呂用吸熱管53を配した缶体54を有し、風呂用吸熱管53と浴槽55との循環路56に風呂加熱時作動する循環ポンプ57を介設するとともに、給湯と風呂加熱の同時使用に作動して循環ポンプ57による浴槽水の循環量を制限するオリフィス58を設けたことを特徴とする。
【0003】
なお、図中、59はバスアダプター、60はバーナ、61は水電磁弁、62は通水検出器である。
【0004】
かかる構成によって、風呂と給湯との同時使用時においても、風呂加熱が行えてかつ十分な能力の給湯が得ることができる。
【0005】
【発明が解決しようとする課題】
しかし、上記した1缶2回路式風呂釜Bは、循環ポンプ57による循環量をオリフィス58を用いて制限するものであるため、給湯側で必要とされる給湯要求号数がある程度以上になっても、循環ポンプ57が作動しつづけ、従って、給湯側で所定温度でかつ所定量の湯を供給することができないおそれがあった。
【0006】
本発明は、上記した課題を解決することができる1缶2回路式風呂釜を提供することを目的とする。
【0007】
【課題を解決するための手段】
本発明は、缶体内に風呂用吸熱管と給湯用吸熱管とを配設し、風呂用吸熱管を循環ポンプを取付けた循環流路を介して浴槽と連通連結した1缶2回路式風呂釜において、給湯側と風呂側の同時使用時には、給湯要求号数に基づき、風呂循環量を決定する循環量制御手段を設け、同循環量制御手段は、所定の給湯要求号数を超えた場合には、循環ポンプを停止すべく構成したことを特徴とする1缶2回路式風呂釜に係るものである。
【0008】
【実施例】
以下、添付図に示す実施例を参照して、本発明を具体的に説明する。
【0009】
図1において、10は並設した多数のフィン11を共用し、このフィン11の上部に複数の風呂用吸熱管1 2を、下部に複数の給湯用吸熱管13を取付けた1缶2回路式風呂釜Aの缶体である。
【0010】
また、缶体10の下部には、同缶体10を加熱するバーナ14が配設されており、同バーナ14への燃料供給路15には、電磁弁16と比例弁17とが取付けられている。
【0011】
風呂用吸熱管12,12同士はU字管状の屈曲筒部18を介して接続されており、一方、給湯用吸熱管13,13同士はU字管状の屈曲筒部19を介して接続されている。
【0012】
さらに、風呂用吸熱管12,12は、中途に循環ポンプ20を取付けた循環流路21を介して浴槽22に連通連結されている。
【0013】
一方、給湯用吸熱管13,13の水流入口23には給水配管24が接続されており、出湯口25には給湯配管26が接続されている。
【0014】
また、給水配管24には水量検出器27と給水温度検出器29が取付けられており、一方、給湯配管26には給湯温度検出器28が取付けられている。
【0015】
なお、図1において、Cは制御装置を示し、水量検出器27や給湯温度検出器28の検出信号に基づいて、電磁弁16や、比例弁17や、循環ポンプ20の駆動を制御するものである。
【0016】
かかる構成を有する1缶2回路式風呂釜Aは、バーナ14の燃焼によって、単一の缶体10を用いて、浴槽22の追焚を行うことができるのみならず、シャワーや台所等へ給湯配管26を通して出湯することができる。
【0017】
本発明は、上記した構成を有する1缶2回路式風呂釜Aにおいて、給湯要求号数を、水量検出器27、給湯温度設定器28, 給水温度検出器29或いは給湯温度検出器30, 給湯温度設定器28の検出信号により演算し、循環量演算手段を具備する制御装置C内の記憶装置に記憶させた複数の風呂循環運転パターンに基づいて循環ポンプ20の駆動を制御することを特徴とする。
【0018】
以下、図2及び図3を参照して、循環ポンプ20の駆動制御方法について説明すると、図2に示すように、追焚しながらシャワーを浴びる場合等において、水量検出器27、給湯温度検出器28、給水温度検出器29或いは熱交換器出口温度検出器30の検出信号により演算した給湯要求号数が所定号数(本実施例では、19号)より小さい場合は、浴槽22へは十分に加熱された浴湯を給湯できるので、循環ポンプ20を連続運転する。
【0019】
しかし、給湯要求号数が所定号数に達した場合は、制御装置C内の記憶装置に記憶させた一つの風呂循環運転パターンに基づいて、図2に示すように、循環ポンプ20のデューティ比を変化させ、給湯要求号数が最大(24号)になった場合は、デューティ比を0、即ち、循環ポンプ20を完全停止する。
【0020】
このように、給湯要求号数が所定値(本実施例では、24号)以上になった場合には、循環ポンプ20を停止して、浴槽22への給湯(浴槽22の追焚)を行わずに、給湯配管26への給湯を優先して行うようにしているため、1缶2回路式風呂釜Aが給湯側と風呂側とで同時に使用される場合であっても、給湯配管26へは所定温度かつ所定量の湯を供給することができ、給湯配管26の使用者に不快感を与えることがなくなり、1缶2回路式風呂釜Aの使い勝手を向上させることができる。
【0021】
図3に、循環ポンプ20のデューティ比を変える一制御方法として、循環ポンプ20のオン・オフ制御を示す。
【0022】
即ち、給湯要求号数を、水量検出器27、給湯温度設定器28、給水温度検出器29或いは給湯温度検出器30、給湯温度設定器28の検出信号により演算し、給湯要求号数が所定号数(本実施例では、19号)より大きくなると、デューティ比が高い場合は、循環ポンプ20の運転周期を、オン時間がオフ時間より長くするとともに、デューティ比が低い場合は、循環ポンプ20の運転周期を、オン時間がオフ時間より短くする制御を行う。
【0023】
循環ポンプ20のオン・オフ運転パターンは、周期としては、0.1Hz〜3Hzが好ましく、周期が短すぎると循環流速が低下して従来技術のような問題を引き起こすことになる。一方、周期が長すぎると、流量の差(停止中と流出中)が大きくなるため、給湯側の温度変化を招いてしまうことになる。
【0024】
さらに、本実施例では、任意の周期において、循環ポンプ20のオン・オフのデューティ比を0%〜100%までの広い範囲で選択でき、給湯要求号数の区分を細かに割りつけることができ細やかな給湯制御が可能となる。
【0025】
また、循環ポンプ20のポンプ回転数のオン・オフのデューティ比は、給湯要求号数の所定値までは100%で、所定値を越えてから缶体最大出力までは、デューティ比を演算により逆比例的に減じた値として決定することもできる。
【0026】
さらに、循環ポンプの運転パターンは、図1及び図4に示すように、リモコンRに、運転スイッチSの他、複数の追焚スイッチS1,S2,S3を用意して、使用者の好みに応じて自由に運転パターンを選択できるようにしてもよい。
【0027】
また、リモコンRには給湯温度設定器28が設けられ、任意に設定できるようにしている。
【0028】
図5に本発明の他の実施例を示す。
【0029】
本実施例は、図1に示す1缶2回路式風呂釜Aにおいて、給水配管24と給湯配管26との間にバイパス配管40を設け、パイパス配管40と給湯配管26との分岐部にミキシングバルブ41を設け、かつ、給水配管24には水量検出器27と給水温度検出器29を設け、給湯配管26であってミキシングバルブ41より下流側をなす混合湯水流路44には水量バルブ42と混合湯水温度検出器43とを設けたことを特徴とする。
【0030】
本実施例においても、図1を参照して説明した実施例と同様に、給湯要求号数を、水量検出器27、給水温度検出器29、給湯温度設定器28、及び、混合湯水温度検出器43、給湯温度設定器28の検出信号により演算し、循環量演算手段を具備する制御装置C内の記憶装置に記憶させた複数の風呂循環運転パターンに基づいて循環ポンプ20の駆動を制御して、浴槽22へは十分に加熱された浴湯を給湯しながら、給湯配管26を通して所定温度かつ所定量の湯を所望の出湯先から出湯することができる。
【0031】
【発明の効果】
以上説明してきたように、本発明は、缶体内に風呂用吸熱管と給湯用吸熱管とを配設し、風呂用吸熱管を循環ポンプを取付けた循環流路を介して浴槽と連通連結した1缶2回路式風呂釜において、給湯側と風呂側の同時使用時には、給湯要求号数に基づき、風呂循環量を決定する循環量制御手段を設け、同循環量制御手段は、所定の給湯要求号数を超えた場合には、循環ポンプを停止すべく構成している。
【0032】
そのため、給湯要求号数が所定値以下の場合には、浴槽へ十分に加熱された浴湯を給湯しながら、給湯配管を通して所定温度かつ所定量の湯を所望の出湯先から出湯することができる。
【0033】
しかも、給湯要求号数が所定値以上になった場合でも、循環ポンプを停止して、浴槽への給湯を行わずに、給湯配管への給湯を優先して行うので、1缶2回路式風呂釜が給湯側と風呂側とで同時に使用される場合であっても、給湯配管へは所定温度かつ所定量の湯を供給することができ、給湯配管の使用者に不快感を与えることがなくなり、1缶2回路式風呂釜の使い勝手を向上させることができる。
【図面の簡単な説明】
【図1】本発明に係る1缶2回路式風呂釜の全体構成説明図である。
【図2】同風呂釜の燃焼パターンの説明図である。
【図3】循環ポンプのオン・オフ運転のデューティ比の説明図である。
【図4】リモコンの平面図である。
【図5】本発明の他の実施例に係る1缶2回路式風呂釜の全体構成説明図である。
【図6】従来の1缶2回路式風呂釜の全体構成説明図である。
【符号の説明】
A 1缶2回路式風呂釜
B 1缶2回路式風呂釜
C 制御装置
10 缶体
12 風呂用吸熱管
13 給湯用吸熱管
14 バーナ
27 水量検出器
28 給湯温度設定器
29 給水温度検出器
30 給湯温度検出器
[0001]
[Industrial applications]
The present invention relates to a one-can, two-circuit bath kettle.
[0002]
[Prior art]
Conventionally, there is a one-can, two-circuit bath kettle described in Japanese Utility Model Publication No. Sho 62-25614 as a one-can, two-circuit bath kettle. As shown in FIG. The fin 51 has a can body 54 in which a heat absorption pipe 52 for hot water supply and a heat absorption pipe 53 for bath are arranged on the upper and lower portions of the fin 51, and a circulation path 56 between the heat absorption pipe 53 for bath and the bathtub 55 heats the bath. An orifice 58 is provided, which interposes a circulation pump 57 that operates at the same time and that limits the amount of bathtub water circulated by the circulation pump 57 by simultaneously operating hot water supply and bath heating.
[0003]
In the drawing, 59 is a bus adapter, 60 is a burner, 61 is a water solenoid valve, and 62 is a water flow detector.
[0004]
With this configuration, even when the bath and the hot water supply are used at the same time, the bath can be heated and hot water supply with sufficient capacity can be obtained.
[0005]
[Problems to be solved by the invention]
However, in the above-mentioned one-can, two-circuit bath kettle B, since the amount of circulation by the circulation pump 57 is limited by using the orifice 58, the number of required hot water supply on the hot water supply side becomes more than a certain number. Also, the circulation pump 57 continues to operate, so that there is a possibility that a predetermined amount of hot water at a predetermined temperature cannot be supplied on the hot water supply side.
[0006]
An object of the present invention is to provide a one-can, two-circuit bath kettle that can solve the above-mentioned problems.
[0007]
[Means for Solving the Problems]
The present invention relates to a one-can two-circuit bath kettle in which a bath heat absorption tube and a hot water supply heat absorption tube are provided in a can body, and the bath heat absorption tube is connected to a bathtub through a circulation flow path equipped with a circulation pump. In the simultaneous use of the hot water supply side and the bath side, a circulation amount control means for determining a bath circulation amount is provided based on the number of hot water supply requests, and the circulation amount control means is provided when a predetermined number of hot water supply requests is exceeded. The present invention relates to a one-can, two-circuit bath kettle configured to stop a circulation pump.
[0008]
【Example】
Hereinafter, the present invention will be described in detail with reference to embodiments shown in the accompanying drawings.
[0009]
In FIG. 1, reference numeral 10 denotes a one-can-two-circuit type in which a plurality of fins 11 arranged side by side are shared, a plurality of heat absorbing tubes 12 for bath are mounted on the upper portion of the fins 11, and a plurality of heat absorbing tubes 13 for hot water supply are mounted on a lower portion. It is a can of bath kettle A.
[0010]
A burner 14 for heating the can 10 is disposed below the can 10, and a solenoid valve 16 and a proportional valve 17 are attached to a fuel supply path 15 to the burner 14. I have.
[0011]
The heat absorbing tubes 12 for bath are connected to each other via a bent tubular portion 18 of a U-shape, while the heat absorbing tubes 13 for hot water supply are connected to each other via a bent tubular portion 19 of a U-shape. I have.
[0012]
Further, the bath heat absorbing tubes 12 and 12 are connected to a bathtub 22 via a circulation flow path 21 in which a circulation pump 20 is mounted halfway.
[0013]
On the other hand, a water supply pipe 24 is connected to a water inflow port 23 of each of the heat absorption pipes 13, 13, and a hot water supply pipe 26 is connected to a hot water outlet 25.
[0014]
A water amount detector 27 and a water supply temperature detector 29 are attached to the water supply pipe 24, while a water supply temperature detector 28 is attached to the hot water supply pipe 26.
[0015]
In FIG. 1, C denotes a control device that controls the driving of the solenoid valve 16, the proportional valve 17, and the circulation pump 20 based on the detection signals of the water amount detector 27 and the hot water supply temperature detector 28. is there.
[0016]
The 1-can 2-circuit bath kettle A having such a configuration not only can reheat the bathtub 22 by using the single can 10 by burning the burner 14, but also supplies hot water to a shower or a kitchen. Hot water can be discharged through the pipe 26.
[0017]
The present invention provides a one-can, two-circuit bath kettle A having the above-described configuration, in which the number of hot water supply requests is determined by a water amount detector 27, a hot water temperature setter 28, a hot water temperature detector 29 or a hot water temperature detector 30, a hot water temperature. The operation of the circulation pump 20 is controlled based on a plurality of bath circulation operation patterns calculated by a detection signal of the setting device 28 and stored in a storage device in the control device C including the circulation amount calculation means. .
[0018]
Hereinafter, a method of controlling the drive of the circulation pump 20 will be described with reference to FIGS. 2 and 3. As shown in FIG. 2, when taking a shower while reheating, etc., the water amount detector 27 and the hot water supply temperature detector 28, if the number of hot water demands calculated by the detection signal of the feed water temperature detector 29 or the heat exchanger outlet temperature detector 30 is smaller than a predetermined number (19 in this embodiment), the bathtub 22 is sufficiently filled. Since the heated bath water can be supplied, the circulation pump 20 is continuously operated.
[0019]
However, when the number of hot water supply requests reaches a predetermined number, as shown in FIG. 2, the duty ratio of the circulation pump 20 is determined based on one bath circulation operation pattern stored in the storage device in the control device C. Is changed, and when the number of hot water supply requests reaches the maximum (No. 24), the duty ratio is set to 0, that is, the circulation pump 20 is completely stopped.
[0020]
As described above, when the number of hot water supply requests becomes equal to or more than the predetermined value (24 in this embodiment), the circulation pump 20 is stopped, and hot water is supplied to the bathtub 22 (additional heating of the bathtub 22). Instead, the hot water supply to the hot water supply pipe 26 is prioritized, so even if the one-can, two-circuit bath kettle A is used simultaneously on the hot water supply side and the bath side, the hot water supply pipe 26 Can supply a predetermined temperature and a predetermined amount of hot water, so that the user of the hot water supply pipe 26 does not feel uncomfortable, and the usability of the one-can, two-circuit bath kettle A can be improved.
[0021]
FIG. 3 shows on / off control of the circulation pump 20 as one control method for changing the duty ratio of the circulation pump 20.
[0022]
That is, the number of required hot water supply is calculated based on detection signals of the water amount detector 27, the hot water temperature setting device 28, the hot water temperature detector 29 or the hot water temperature detector 30, and the hot water temperature setting device 28, and the required number of hot water supply is determined. When the duty ratio is high, the on-period of the circulation pump 20 is made longer than the off-time when the duty ratio is high, and when the duty ratio is low, the circulation pump 20 is turned on when the duty ratio is low. Control is performed such that the on-time of the operation cycle is shorter than the off-time.
[0023]
The cycle of the on / off operation of the circulating pump 20 is preferably 0.1 Hz to 3 Hz. If the cycle is too short, the circulation flow rate is reduced, causing a problem as in the related art. On the other hand, if the cycle is too long, the difference between the flow rates (during stoppage and during outflow) increases, which causes a change in temperature on the hot water supply side.
[0024]
Furthermore, in the present embodiment, the on / off duty ratio of the circulation pump 20 can be selected in a wide range from 0% to 100% in an arbitrary cycle, and the division of the number of hot water supply requests can be finely assigned. Fine water supply control becomes possible.
[0025]
The on / off duty ratio of the pump rotation speed of the circulation pump 20 is 100% up to a predetermined value of the number of hot water supply requests, and from the predetermined value to the maximum output of the can body, the duty ratio is inversely calculated. It can also be determined as a proportionally reduced value.
[0026]
Further, as shown in FIGS. 1 and 4, the operation pattern of the circulation pump is such that a plurality of reheating switches S1, S2, and S3 are prepared on the remote controller R in addition to the operation switch S, according to the user's preference. It is also possible to make it possible to freely select an operation pattern by using the following.
[0027]
Further, the remote control R is provided with a hot water supply temperature setting device 28, which can be arbitrarily set.
[0028]
FIG. 5 shows another embodiment of the present invention.
[0029]
In the present embodiment, a bypass pipe 40 is provided between a water supply pipe 24 and a hot water supply pipe 26 in a one-can two-circuit bath kettle A shown in FIG. 1, and a mixing valve is provided at a branch portion between the bypass pipe 40 and the hot water supply pipe 26. The water supply pipe 24 is provided with a water amount detector 27 and a water supply temperature detector 29, and the mixed water supply flow path 44, which is downstream of the mixing valve 41, is mixed with the water amount valve 42. A water temperature detector 43 is provided.
[0030]
Also in this embodiment, similarly to the embodiment described with reference to FIG. 1, the number of hot water supply requests is determined by the water amount detector 27, the feed water temperature detector 29, the hot water temperature setting device 28, and the mixed hot water temperature detector. 43, controlling the drive of the circulation pump 20 based on a plurality of bath circulation operation patterns calculated based on a detection signal of the hot water supply temperature setting device 28 and stored in a storage device in the control device C including the circulation amount calculation means. In addition, while supplying sufficiently heated bath water to the bathtub 22, a predetermined temperature and a predetermined amount of hot water can be discharged from a desired discharge destination through the hot water supply pipe 26.
[0031]
【The invention's effect】
As described above, according to the present invention, a bath heat absorption tube and a hot water supply heat absorption tube are disposed in a can body, and the bath heat absorption tube is connected to and connected to a bathtub through a circulation flow path equipped with a circulation pump. In a one-can two-circuit bath kettle, when the hot-water supply side and the bath-side are used simultaneously, a circulation amount control means for determining a bath circulation amount is provided based on the number of required hot water supply numbers. If the number exceeds the number, the circulation pump is stopped.
[0032]
Therefore, when the number of hot water supply requests is equal to or less than a predetermined value, it is possible to supply a predetermined temperature and a predetermined amount of hot water from a desired tapping destination through a hot water supply pipe while supplying the sufficiently heated bath water to the bathtub. .
[0033]
Moreover, even when the number of hot water supply requests exceeds a predetermined value, the circulating pump is stopped and hot water supply to the hot water supply pipe is performed preferentially without performing hot water supply to the bathtub. Even when the kettle is used on both the hot water supply side and the bath side at the same time, a predetermined temperature and a predetermined amount of hot water can be supplied to the hot water supply pipe, so that the user of the hot water supply pipe does not feel uncomfortable. (1) The usability of a two-circuit type bath can is improved.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of the overall configuration of a one-can, two-circuit bath kettle according to the present invention.
FIG. 2 is an explanatory diagram of a combustion pattern of the bath kettle.
FIG. 3 is an explanatory diagram of a duty ratio of an on / off operation of a circulation pump.
FIG. 4 is a plan view of the remote controller.
FIG. 5 is an explanatory view of the overall configuration of a one-can, two-circuit bath kettle according to another embodiment of the present invention.
FIG. 6 is an explanatory diagram of the overall configuration of a conventional one-can, two-circuit bath kettle.
[Explanation of symbols]
A 1-can 2-circuit bath kettle B 1-can 2-circuit bath kettle C Controller 10 Can 12 Heat absorption tube for bath 13 Heat absorption tube for hot water supply 14 Burner 27 Water amount detector 28 Hot water temperature setting device 29 Water supply temperature detector 30 Hot water supply Temperature detector

Claims (1)

缶体(10)内に風呂用吸熱管(12)と給湯用吸熱管(13)とを配設し、風呂用吸熱管(12)を循環ポンプ(20)を取付けた循環流路(21)を介して浴槽(10)と連通連結した1缶2回路式風呂釜(A)において、
給湯側と風呂側の同時使用時には、給湯要求号数に基づき、風呂循環量を決定する循環量制御手段を設け、同循環量制御手段は、所定の給湯要求号数を超えた場合には、循環ポンプ(20)を停止すべく構成したことを特徴とする1缶2回路式風呂釜。
A heat absorption pipe for bath (12) and a heat absorption pipe for hot water supply (13) are provided in a can body (10), and the heat absorption pipe for bath (12) is circulated to a circulation flow path (21) equipped with a circulation pump (20). In a one-can, two-circuit bath kettle (A) connected to the bathtub (10) through
At the time of simultaneous use of the hot water supply side and the bath side, a circulation amount control means for determining a bath circulation amount is provided based on the number of hot water supply requests, and the circulation amount control means, when exceeding a predetermined number of hot water supply requests, A one-can, two-circuit bath kettle configured to stop the circulation pump (20).
JP2000345767A 2000-11-13 2000-11-13 1 can 2 circuit bath kettle Expired - Fee Related JP3576962B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000345767A JP3576962B2 (en) 2000-11-13 2000-11-13 1 can 2 circuit bath kettle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000345767A JP3576962B2 (en) 2000-11-13 2000-11-13 1 can 2 circuit bath kettle

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP33455392A Division JP3192014B2 (en) 1992-12-15 1992-12-15 1 can 2 circuit bath kettle

Publications (2)

Publication Number Publication Date
JP2001165502A JP2001165502A (en) 2001-06-22
JP3576962B2 true JP3576962B2 (en) 2004-10-13

Family

ID=18819736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000345767A Expired - Fee Related JP3576962B2 (en) 2000-11-13 2000-11-13 1 can 2 circuit bath kettle

Country Status (1)

Country Link
JP (1) JP3576962B2 (en)

Also Published As

Publication number Publication date
JP2001165502A (en) 2001-06-22

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