JP3253639B2 - Sealed battery equipment - Google Patents
Sealed battery equipmentInfo
- Publication number
- JP3253639B2 JP3253639B2 JP02968791A JP2968791A JP3253639B2 JP 3253639 B2 JP3253639 B2 JP 3253639B2 JP 02968791 A JP02968791 A JP 02968791A JP 2968791 A JP2968791 A JP 2968791A JP 3253639 B2 JP3253639 B2 JP 3253639B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- cap
- battery pack
- partition wall
- valve
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
- A61H7/002—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing
- A61H7/004—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing power-driven, e.g. electrical
- A61H7/005—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing power-driven, e.g. electrical hand-held
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Computer Hardware Design (AREA)
- Casings For Electric Apparatus (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Percussion Or Vibration Massage (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内部に電池を備え、且
つ防水のため密閉構造とした密閉式電池機器に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed battery device having a battery therein and having a sealed structure for waterproofing.
【０００２】[0002]
【従来の技術】外部の充電器で充電した電池パックを電
源として、機能させる電気器具において、防水等の目的
により密閉状態で電池パックを使用する場合、密閉した
本体内部で水素ガスが発生する。すなわち、電池を複数
本内蔵する電池パックにおいては、各電池の容量アンバ
ランスにより過放電時に、容量の少ない電池が逆充電状
態となってしまい、この時に水素ガスが発生する。2. Description of the Related Art In an electric appliance that functions using a battery pack charged by an external charger as a power source, when the battery pack is used in a sealed state for the purpose of waterproofing or the like, hydrogen gas is generated inside the sealed main body. That is, in a battery pack containing a plurality of batteries, when the batteries are overdischarged due to a capacity imbalance of the batteries, the batteries having a small capacity are in a reverse charge state, and hydrogen gas is generated at this time.
【０００３】また、防水式ではあるが、最悪、水が浸入
した時で、電池パックの＋，−の端子間に水が付着した
時、水の電気分解が起こり、水素ガスが発生する。ま
た、電池パックの電圧が高ければ高い程、ガス発生は多
くなる。電池パックを収納している本体内部で上記の原
因により水素ガスが発生し、該水素ガスが溜まった状態
で火花が接触すると爆発を起こす。この爆発を引き起こ
す火花の原因となるのは、電気接点部であり、モータ刷
子部、スイッチ部、電池パック端子部がこれに相当す
る。[0003] In addition, although it is of a waterproof type, in the worst case, when water enters, and when water adheres between the + and-terminals of the battery pack, electrolysis of water occurs and hydrogen gas is generated. Also, the higher the voltage of the battery pack, the more gas is generated. Hydrogen gas is generated inside the main body containing the battery pack due to the above-described cause, and when a spark contacts with the hydrogen gas accumulated, an explosion occurs. The cause of the spark causing the explosion is the electric contact portion, which corresponds to the motor brush portion, the switch portion, and the battery pack terminal portion.
【０００４】[0004]
【発明が解決しようとする課題】上記のようにして発生
した水素ガスに火花が引火して爆発を生じた際に、密閉
構造の本体ハウジングが破裂する虞がある。従って、こ
の爆発時の内圧上昇を抑えるため、ガス圧により外方に
開く排気弁を設けなければならない。ところが、本体の
外壁に露出するように弁を設けると、外観的にも見苦し
く、また弁を外部から損傷させる虞があるという問題が
あった。When a spark ignites the hydrogen gas generated as described above and causes an explosion, there is a possibility that the main body housing having a closed structure may burst. Therefore, in order to suppress the rise in internal pressure at the time of the explosion, it is necessary to provide an exhaust valve that opens outward by gas pressure. However, when the valve is provided so as to be exposed on the outer wall of the main body, there is a problem that the appearance is unsightly and the valve may be damaged from the outside.
【０００５】本発明は上述の点に鑑みて提供したもので
あって、内部で爆発が起こった時、瞬時に排気すること
ができ、しかも、弁を外部から損傷させず、また、外観
を損なわないようにした密閉式電池機器を提供すること
を目的としたものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and when an explosion occurs inside, it can be instantaneously evacuated, without damaging the valve from the outside and impairing its appearance. It is an object of the present invention to provide a sealed battery device in which no battery is provided.
【０００６】[0006]
【課題を解決するための手段】本発明は、電池パックの
収容部に排気孔を穿設したキャップを着脱自在に設け、
このキャップ内に仕切り壁を設けると共に、該仕切り壁
に外方に向かってガス圧で開放するガス抜き弁を排気孔
と位置をずらして設けたものである。According to the present invention, a cap provided with an exhaust hole is detachably provided in a housing portion of a battery pack.
A partition wall is provided in the cap, and a gas vent valve that opens to the outside of the partition wall by gas pressure is provided with an exhaust port.
And the position is shifted .
【０００７】[0007]
【作 用】而して、内部で爆発が起こった場合、仕切り
壁のガス抜き弁及びキャップの排気孔を介してガスを瞬
時に外部に排気し、爆発による内圧上昇を最小限に抑
え、また、ガス抜き弁をキャップ内の仕切り壁に排気孔
と位置をずらして設けたものであるから、排気孔から細
い棒等が挿入されても、ガス抜き弁に接触せず、ガス抜
き弁が外部からの力によって損傷するのを防止でき、且
つ外観を損なわないようにしている。[Operation] When an explosion occurs inside, the gas is instantaneously exhausted to the outside through the vent valve of the partition wall and the exhaust hole of the cap, and the internal pressure rise due to the explosion is minimized. the exhaust hole of the vent valve in the partition wall of the cap
The position is shifted from the
Even if a rod or the like is inserted, the gas
The valve can be prevented from being damaged by external force , and its appearance is not impaired.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面を参照して説明
する。本発明は、充電式電池パックを電源とし、防水等
の目的により電池パックを本体内で密閉して使う電気器
具において、電池収容部に発生する水素ガスの爆発を防
止するようにしたものであり、本実施例では、充電式ボ
デイブラシに適用して説明する。Embodiments of the present invention will be described below with reference to the drawings. The present invention is intended to prevent explosion of hydrogen gas generated in a battery accommodating part in an electric appliance which uses a rechargeable battery pack as a power source and hermetically closes the battery pack in a main body for the purpose of waterproofing or the like. In this embodiment, description will be made by applying the present invention to a rechargeable body brush.
【０００９】図１はボデイブラシの構造を示し、斜視図
を図５に示す。本体２の略中央部のグリップ部１０内
に、例えばＮｉ−Ｃｄ電池のような充電電池８を内蔵し
た電池パック１２を収納し、電源部としている。電池パ
ック１２からの電源は、通電金具１８によってモータ７
に供給され、モータ７を回転させる。モータ７の動力
は、ギヤブロック１１に伝達され、減速、トルクアップ
されて出力軸５に伝えられる。出力軸５にはブラシ１が
取り付けられ、このブラシ１の回転により身体を洗うこ
とができる。出力軸５は、シールパッキン６により防水
されている。本体２の上面には電源スイッチ１４が配設
してある。尚、グリップ部１０は略円形であるが、握り
やすくするために片側に凹部１５（凹み量ｄ）を形成し
ている。FIG. 1 shows the structure of the body brush, and FIG. A battery pack 12 containing a rechargeable battery 8 such as a Ni-Cd battery is housed in a grip portion 10 at a substantially central portion of the main body 2 to serve as a power supply portion. The power from the battery pack 12 is supplied to the motor 7
To rotate the motor 7. The power of the motor 7 is transmitted to the gear block 11, decelerated and increased in torque, and transmitted to the output shaft 5. The brush 1 is attached to the output shaft 5, and the body can be washed by the rotation of the brush 1. The output shaft 5 is waterproofed by a seal packing 6. A power switch 14 is provided on the upper surface of the main body 2. Although the grip portion 10 is substantially circular, a concave portion 15 (a concave amount d) is formed on one side for easy gripping.
【００１０】電池パック１２を充電する時、本体２から
電池パック１２を抜き取るが、この時、キャップ１３を
回し、ネジを緩めて外す。本体２とキャップ１３はシー
ルパッキン１６でシールされている。キャップ１３の外
面にはボデイブラシを壁掛けする時に用いるための引掛
部１９を形成している。また、キャップ１３には排気孔
１７が穿孔されている。When charging the battery pack 12, the battery pack 12 is removed from the main body 2. At this time, the cap 13 is turned, and the screws are loosened and removed. The main body 2 and the cap 13 are sealed with a seal packing 16. A hook 19 is formed on the outer surface of the cap 13 for use when hanging the body brush on a wall. An exhaust hole 17 is formed in the cap 13.
【００１１】また、キャップ１３の内周には仕切り壁２
２をキャップ１３とシールして取り付け、この仕切り壁
２２にガス抜き弁２１を複数装着している。ガス抜き弁
２１は図２に示すように、シリコンゴムからなる柔軟材
で軸状の取付部２１ａと傘状の傘部２１ｂとで一体形成
されている。仕切り壁２２には取付穴２３が穿設されて
おり、この取付穴２３にガス抜き弁２１の取付部２１ａ
を差し込み、取付部２１ａの先端側の外周に周設した突
部２１ｃにて抜け止めを行っている。また、ガス抜き弁
２１の傘部２１ｂに対応した仕切り壁２２の部分にはガ
スを抜くための排気孔２４が複数穿孔してある。尚、こ
のガス抜き弁２１は仕切り壁２２に１個または複数個設
けるものとする。A partition wall 2 is provided on the inner periphery of the cap 13.
2 is sealed with the cap 13 and a plurality of gas release valves 21 are mounted on the partition wall 22. As shown in FIG. 2, the degassing valve 21 is integrally formed of a shaft-shaped mounting portion 21a and an umbrella-shaped umbrella portion 21b of a flexible material made of silicone rubber. A mounting hole 23 is formed in the partition wall 22, and a mounting portion 21 a of the gas release valve 21 is formed in the mounting hole 23.
Is inserted, and the protrusion 21c provided around the outer periphery on the distal end side of the mounting portion 21a prevents the attachment portion from falling off. A plurality of exhaust holes 24 for discharging gas are formed in a part of the partition wall 22 corresponding to the head 21b of the gas release valve 21. It is assumed that one or a plurality of the gas vent valves 21 are provided on the partition wall 22.
【００１２】キャップ１３に穿孔したガス排気用の排気
孔１６は水抜き穴の役目もしており、ガス抜き弁２１と
排気孔１６は、図３に示すように位置をずらしており、
排気孔１６から細い棒等でガス抜き弁２１が接触しない
構造としている。従って、ガス抜き弁２１を外部からの
力で機械的に損傷することがない。グリップ部１０の断
面形状は図４に示すように、電池パック１２の上面とグ
リップ部１０の上部下面との間に大きく空間ができてお
り、この空間部を埋めるためにスペーサ２５を配設して
いる。このスペーサ２５は柔軟な材質で構成しており、
また、密閉された構造としている。The gas exhaust hole 16 formed in the cap 13 also serves as a drain hole, and the gas vent valve 21 and the exhaust hole 16 are shifted in position as shown in FIG.
The gas vent valve 21 does not contact with a thin rod or the like from the exhaust hole 16. Therefore, the gas vent valve 21 is not mechanically damaged by an external force. As shown in FIG. 4, the grip 10 has a large space between the upper surface of the battery pack 12 and the upper lower surface of the grip 10, and a spacer 25 is provided to fill this space. ing. The spacer 25 is made of a flexible material.
In addition, it has a sealed structure.
【００１３】キャップ１３側の本体２の上面には一対の
リブ２６が一体に形成されていて、図８に示すように本
体２を置いた時、ヘッド部２７と一対のリブ２６とで安
定な姿勢が得られるようにリブ２６の高さＨを設定して
いる（図３）。このリブ２６の働きにより本体２は転が
らず安定して置くことができる。また、キャップ１３の
表面には２個のマーク２８が設けられており、キャップ
１３をネジで締め込む時の合わせマークとしても、リブ
２６が機能するようにしてある。A pair of ribs 26 are integrally formed on the upper surface of the main body 2 on the cap 13 side. When the main body 2 is placed as shown in FIG. 8, the head portion 27 and the pair of ribs 26 are stable. The height H of the rib 26 is set so that the posture can be obtained (FIG. 3). By the function of the rib 26, the main body 2 can be stably placed without rolling. Further, two marks 28 are provided on the surface of the cap 13 so that the ribs 26 also function as alignment marks when the cap 13 is tightened with screws.
【００１４】ここで、グリップ部１０の内部でガス圧が
上昇したり、或いはガス圧が上昇して爆発が起こった
時、ガス抜き弁２１の傘部２１ｂが外方に向かって開放
するため、排気孔２４，１６を介して瞬時にガスを外部
に排気することができる。図１０（ａ）はガス圧にて内
圧が上昇した場合を示し、図１０（ｂ）はガス抜き弁２
１の効果で内圧が抑えられた状態を示している。Here, when the gas pressure rises inside the grip portion 10 or when the gas pressure rises and an explosion occurs, the umbrella portion 21b of the degassing valve 21 is opened outward. The gas can be exhausted to the outside through the exhaust holes 24 and 16 instantaneously. FIG. 10A shows a case where the internal pressure is increased by the gas pressure, and FIG.
The state where the internal pressure is suppressed by the effect of 1 is shown.
【００１５】また、爆発時の内圧上昇を下げるために
は、ガス抜き弁２１の開弁圧を最小にする必要がある。
そこで、本発明に使用するガス抜き弁２１は、外部に露
出していないため、シリコンゴム等の柔軟材で形成する
ことができ、ガス抜き弁２１の傘部２１ｂを薄肉で形成
されているため、非常に低い圧力で開弁させることがで
き、爆発時の圧力上昇を最小限に抑えることができるも
のである。Further, in order to reduce the rise in internal pressure at the time of the explosion, it is necessary to minimize the valve opening pressure of the gas vent valve 21.
Therefore, since the gas vent valve 21 used in the present invention is not exposed to the outside, it can be formed of a flexible material such as silicon rubber, and the umbrella portion 21b of the gas vent valve 21 is formed thin. The valve can be opened at a very low pressure, and the pressure rise at the time of the explosion can be minimized.
【００１６】[0016]
【発明の効果】本発明は上述のように、電池パックの収
容部に排気孔を穿設したキャップを着脱自在に設け、こ
のキャップ内に仕切り壁を設けると共に、該仕切り壁に
外方に向かってガス圧で開放するガス抜き弁を排気孔と
位置をずらして設けたものであるから、内部で爆発が起
こった場合、仕切り壁のガス抜き弁及びキャップの排気
孔を介してガスを瞬時に外部に排気し、爆発による内圧
上昇を最小限に抑えることができ、また、ガス抜き弁を
キャップ内の仕切り壁に排気弁と位置をずらして設けて
いるから、排気孔から細い棒等が挿入されても、ガス抜
き弁に接触せず、ガス抜き弁が外部からの力によって損
傷するのを防止でき、且つ外観を損うことがないもので
あり、さらに、着脱自在可能な仕切り壁にガス抜き弁を
設けたことで、ガス抜き弁の補修、交換が容易であると
いう効果を奏するものである。As described above, according to the present invention, a cap provided with an exhaust hole is removably provided in the housing portion of the battery pack, a partition wall is provided in the cap, and the partition wall faces outward. the vent valve for releasing gas pressure and the exhaust hole Te
Since it is provided at a shifted position, when an explosion occurs inside, the gas is instantaneously exhausted to the outside through the vent valve of the partition wall and the exhaust hole of the cap, and the internal pressure rise due to the explosion is minimized. In addition, a vent valve can be provided on the partition wall in the cap so as to be shifted from the exhaust valve.
Gas, even if a thin rod is inserted through the exhaust port.
The gas vent valve does not come into contact with the
The effect that damage can be prevented and the appearance is not impaired, and that the gas vent valve is provided on the detachable partition wall, so that the gas vent valve can be easily repaired and replaced. Is played.
【図１】（ａ）は本発明の実施例のボデイブラシの平面
図である。 （ｂ）はボデイブラシの断面図である。FIG. 1A is a plan view of a body brush according to an embodiment of the present invention. (B) is a sectional view of the body brush.
【図２】ガス抜き弁の拡大断面図である。FIG. 2 is an enlarged sectional view of a vent valve.
【図３】ボデイブラシの側面図である。FIG. 3 is a side view of the body brush.
【図４】ボデイブラシの断面図である。FIG. 4 is a sectional view of the body brush.
【図５】全体の斜視図である。FIG. 5 is an overall perspective view.
【図６】要部分解斜視図である。FIG. 6 is an exploded perspective view of a main part.
【図７】分解斜視図である。FIG. 7 is an exploded perspective view.
【図８】ボデイブラシを置いた状態を示す説明図であ
る。FIG. 8 is an explanatory diagram showing a state where a body brush is placed.
【図９】ボデイブラシを置いた状態を示す説明図であ
る。FIG. 9 is an explanatory diagram showing a state where a body brush is placed.
【図１０】（ａ）は内圧が上昇している場合を示す図で
ある。 （ｂ）はガス抜き弁が動作した後の状態を示す図であ
る。FIG. 10A is a diagram showing a case where the internal pressure is rising. (B) is a diagram showing a state after the degassing valve operates.
１２ 電池パック １３ キャップ １６ 排気孔 ２１ ガス抜き弁 ２２ 仕切り壁 ２４ 排気孔 DESCRIPTION OF SYMBOLS 12 Battery pack 13 Cap 16 Exhaust hole 21 Gas release valve 22 Partition wall 24 Exhaust hole
Claims (1)
の目的のため密閉状態で使用する密閉式電池機器におい
て、電池パックの収容部に排気孔を穿設したキャップを
着脱自在に設け、このキャップ内に仕切り壁を設けると
共に、該仕切り壁に外方に向かってガス圧で開放するガ
ス抜き弁を前記排気孔と位置をずらして設けたことを特
徴とする密閉式電池機器。1. A sealed battery device in which a detachable rechargeable battery pack is used in a sealed state for the purpose of waterproofing or the like, wherein a cap having an exhaust hole provided in a housing portion of the battery pack is detachably provided. A sealed battery device wherein a partition wall is provided in the cap, and a gas vent valve which is opened outward by gas pressure is provided on the partition wall at a position shifted from the exhaust hole .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02968791A JP3253639B2 (en) | 1991-02-25 | 1991-02-25 | Sealed battery equipment |
| GB9203900A GB2253512A (en) | 1991-02-25 | 1992-02-24 | Cap for relieving explosive gases from casing of battery powered sealed electrical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02968791A JP3253639B2 (en) | 1991-02-25 | 1991-02-25 | Sealed battery equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04269448A JPH04269448A (en) | 1992-09-25 |
| JP3253639B2 true JP3253639B2 (en) | 2002-02-04 |
Family
ID=12283020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02968791A Expired - Fee Related JP3253639B2 (en) | 1991-02-25 | 1991-02-25 | Sealed battery equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3253639B2 (en) |
| GB (1) | GB2253512A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1733495A (en) * | 1994-09-06 | 1996-03-27 | Centurion International, Inc. | A ventilated battery housing for use with rechargeable battery cells |
| GB2322469B (en) * | 1997-02-21 | 2000-01-19 | Nanma Manufacturing Company Li | Battery compartment |
| CN1289271C (en) * | 2000-11-02 | 2006-12-13 | 皇家菲利浦电子有限公司 | Waterproof housing of apparatus |
| US7544439B2 (en) | 2005-04-27 | 2009-06-09 | The Gillette Company | Venting water-tight battery-operated devices |
| US7918862B2 (en) * | 2005-11-23 | 2011-04-05 | Johnson & Johnson Consumer Companies, Inc. | Water-resistant devices incorporating a switch assembly |
| US7636975B2 (en) * | 2006-11-09 | 2009-12-29 | Hydrodynamic Industrial Company Limited | Pool vacuum |
| CN106137672B (en) * | 2016-07-31 | 2018-04-13 | 刘庆芳 | A kind of energy-saving weight-reducing vibrator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3527376A (en) * | 1968-08-06 | 1970-09-08 | Charles J Brooke Young Jr | Self-venting closure |
| US4121017A (en) * | 1977-10-25 | 1978-10-17 | Globe-Union Inc. | Portable rechargeable lead-acid battery |
| US4451980A (en) * | 1981-11-20 | 1984-06-05 | Matsushita Electric Works, Ltd. | Chargeable electric instrument |
| JPH0766788B2 (en) * | 1986-09-19 | 1995-07-19 | 三洋電機株式会社 | Waterproof battery equipment |
| NL8700550A (en) * | 1987-03-06 | 1988-10-03 | Wiva Bv | BREATHER CAP. |
-
1991
- 1991-02-25 JP JP02968791A patent/JP3253639B2/en not_active Expired - Fee Related
-
1992
- 1992-02-24 GB GB9203900A patent/GB2253512A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2253512A (en) | 1992-09-09 |
| JPH04269448A (en) | 1992-09-25 |
| GB9203900D0 (en) | 1992-04-08 |
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