JPS5944625A - Pipe prover - Google Patents
Pipe proverInfo
- Publication number
- JPS5944625A JPS5944625A JP57154588A JP15458882A JPS5944625A JP S5944625 A JPS5944625 A JP S5944625A JP 57154588 A JP57154588 A JP 57154588A JP 15458882 A JP15458882 A JP 15458882A JP S5944625 A JPS5944625 A JP S5944625A
- Authority
- JP
- Japan
- Prior art keywords
- line
- piston
- liquid
- valve
- switching 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/11—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using a seal ball or piston in a test loop
Abstract
Description
【発明の詳細な説明】
本発明ｌｉｔ流ｍ轟１の：１ヤリブレーションに使用す
る容積測定用のバイブプルーバーに閏する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a volumetric vibe prover used for 1:1 calibration.
周知の如くバイブプルーバ−は基型体積ｖＸであるシリ
ンダーの中を１１復運動りるビス１−２４石し、そのビ
ス］ヘンの一行稈の吐出音（ｒｌはシリンダーの断面積
とビス１−ンのスミ−ローフから正１’ＩＫに求めるこ
とができるので、容積測定用にりＹ適に使用Ｊることが
できる。しかしながら従来のバイブブルーバーて゛はシ
リンダーの端部でビス１−ンを停止１さＵる場合に、端
部に取イζ１りたＦａ Ｉ！ｓ用の１リングにビス１〜
ンを直接当ててビス１−ンを停止］さけたり、或いはピ
ストンがシリンダーのある特定しｌ：ｑ ｊｅｔ買を通
過すると流路を１台えて、ピストンｌ＼１珪かる液圧方
向を変えてピストンを搾り二さシシと）もの雪が知られ
ているが、前者はショック圧が人＆ ’ＣＩ！’４１速
の作動に適さず、また後者はビスＩ〜ンのＷ −１，１
ニー １ｅＪ置が流速によって変化し、助走路の長さが
一定でな・−流■の測定に誤差が牛り゛る等の問題点が
あった０、したがって本発明の目的は、ピストンの１・
鉢、ｔｌ、−、Ｃ＝際してショックＪ］二を牛Ｖす゛、
５１、たｉｌｌ ？ｉｆｌに１”、′１１で゛さ、もつ
Ｃ停止位置の変化による測定誤差がないパｒブプルーバ
ーを提供りるにある。As is well known, the vibration prover is a cylinder with a basic volume v Since the positive 1'IK can be determined from the smee loaf, it can be used appropriately for volume measurement.However, conventional vibration blue bars stop the screw 1 at the end of the cylinder. When you remove it, attach 1 screw to 1 ring for FaI!s that has ζ1 attached to the end.
If the piston passes through a certain point in the cylinder, create a flow path and change the direction of the hydraulic pressure that the piston receives. It is known that the piston can be squeezed twice (with two strokes), but in the former case, the shock pressure is high! '41 speed operation, and the latter is not suitable for 41-speed operation, and the latter is
There have been problems such as the knee 1eJ position changes depending on the flow velocity, the length of the run-up path is not constant, and there are considerable errors in measuring the flow.・
Bowl, tl, -, C = Shock J] Two cows Vsu゛,
51. Ill? The purpose of the present invention is to provide a parable prover which does not have measurement errors due to changes in the C stop position when the ifl is 1'' and '11''.
本発明によれば、ビス１−ンの停止１幾構は液１１ダン
パＡ３よび液月の供給Ｆ？■装置が設（）られ、したが
ってビス１−ンは２段階に停止作用が行われるので、正
Ｔ１１「に停由位置で停止さけることがｒきる。。According to the present invention, the stop 1 of the screw 1 is connected to the liquid 11 damper A3 and the liquid supply F? (2) A device is installed, so that the screw 1-on is stopped in two stages, so it is possible to avoid stopping at the stop position at T11.
以下図面を参照して本発明の実施例につい（説明づる。Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明のバイブプルーバー△（流早削Ｎ、Ｉの
二１トリフレージ：１ンを行・うどころを示３ノ配置′
テ（図Ｃあり、４１１図において液体のラインは実線で
、気体刀イｒ ’ｌ’−） ｌ−’、 ？、’ｏ気のラ
イン（ま点線℃゛、そして仏弓シ、ｒン（よ−５７α鎖
線で示しである。タンク］−からポンプ１）（・吸１−
けられた液は流入ラインＬ１を通り（流量ｉ１− Ｍに
送られる。この流入ジイン［−１に７７ツＶリンクＣｔ
、Ｃ２が段ジノられ、キ【・リブレノ−シコンしよう
と１−る流量ＲＩＭが容易に接続し１するＪ、うになっ
ている。この流入うｆン１−盲は開閉弁２を介し【出］
」ラインＬ７に接続されており、開閉弁２の上流側の分
岐ライン１−３にｔＪ、開閉弁３が接続されており、イ
しで開閉弁２の下流側の分岐ラーｒン１４には開閉弁４
が接続され−Ｃいる。Figure 1 shows the vibe prover of the present invention (21 trifrage of quick-cutting N and I: 1 n is performed and the highlight is shown 3 no arrangement'
(There is a diagram C. In Figure 411, the liquid line is a solid line, and the gas line is a solid line.) l-', ? ,' o air line (dotted line ℃ ゛, and French bow, r - 57α shown by the chain line.Tank] - to pump 1) (・suction 1 -
The removed liquid passes through the inflow line L1 (flow rate i1-M).
, C2 are stepped and the flow rate RIM connected to the remote control is easily connected. This inflow (output) is via the on-off valve 2.
” line L7, and the on-off valve 3 is connected to the branch line 1-3 on the upstream side of the on-off valve 2, and the on-off valve 3 is connected to the branch line 14 on the downstream side of the on-off valve 2. Open/close valve 4
-C is connected.
池方バイブブルーバー△の右側の室１ａの端部（、二は
ブＩツキ弁５を右りるラーイント、が接続さ口、また室
’ｌ ａの中間部にはラインし６が接続されライン１−
・１どラインＬ６とは、点Ｐ１で接続さ′１、ている３
、また）ｉ側の室１ｂにも同様に￥１ｂの端部に接続さ
れそしてヂエツキ弁６をイｊりるツイン１−７ど室１１
）の中間に接続され℃いるラーｆン１１１とが点Ｉ〕２
てパ接続され−Ｃいる。ぞし−で分岐ノｒンＩ３は切換
弁７を介じζＪ１°、ｉｒ）＋！こ、また切換弁Ｅ〕を
介しで貞１）ｚに接続さ１′シ、分１伎ラインｌ ４
Ｌｌ、切換弁９を介しＣ魚［〕萱に１，１、た切換弁゛
１０を介しく点Ｐ２にでれぐれ接続されている、１
今シリンター′ｉ内のビス１−ン１′１が図面゛（ノド
側にあるものどじ、開閉弁２を閉じ開閉弁ご３、Ｊ３Ｊ
、び４を聞い（，１３さ、スター、１〜スイツｆ３０４
押づと制御器１２は信号ラインＳ１にＡシイ１”ｉ〉］
を−ど［じる。そし゛Ｃ１切換弁１３は図示の位置がら
り換わり、モして切換弁１／４は図示の位置にあるので
゛、空気供給鯨１５からの作動空気は切換弁ε３と９と
に印加され、したがって切換弁８．９は聞）＼、切換弁
７．１０ ＧＪ閉じている。タンク−１−丙の液はポン
プＰで送られ、キ！・リブ１ノーシコンしょうどりる流
量ｉｔ Ｍを通っ（ジインＬ３がら切操ｆｒ８を通り、
ラインＬ−ａＪ３よびヂ■、ツ４弁６を介して１−７か
ら左側の室１ｂにはいりビス１−ン１１ ＧＪ、スムー
ズに右へ移動りる。The end of the chamber 1a on the right side of the Ikegata vibe blue bar △ is connected to the right side of the valve 5, and the line 6 is connected to the middle part of the chamber 1a. Line 1-
・The first line L6 is connected at point P1.
, and also) twin chambers 1-7 and 11 which are connected to the end of the i-side chamber 1b and which operate the valve 6.
) is connected to the point I〕2.
It is connected to -C. The branch no. I3 is connected via the switching valve 7 to ζJ1°, ir)+! This is also connected to the line 1) through the switching valve E].
Ll is loosely connected to the point P2 via the switching valve 10 via the switching valve 9, and the screw 1 to the screw 1'1 in the cylinder'i. is the drawing (the one on the throat side, close the on-off valve 2, close the on-off valve 3,
Listen to ,bi4(,13sa,star,1~Switzerland f304
Press controller 12 connects signal line S1 to signal line S1
-do [jiru. Then, the position of the C1 switching valve 13 is changed as shown, and since the switching valve 1/4 is in the position shown, the operating air from the air supply whale 15 is applied to the switching valves ε3 and 9. Switching valve 8.9 is closed, switching valve 7.10 GJ is closed. The liquid in Tank-1-C is sent by pump P, and Ki!・Through the rib 1 nostalgic flow rate it M (pass through the engine L3 cutting fr8,
Enter the left chamber 1b from 1-7 through the line L-aJ3 and the 2-4 valve 6, and the screw 1-11GJ smoothly moves to the right.
室１ｂに液が流入されるど、ビス１〜ン１１は図面（イ
１動りるが、ピストン１１の〕１−側の感知部１１１）
がレンリ１８を通過で）ると、［ン１）１ Ｂからカラ
ンｌ−信″ｒＪが一ンーｒン３３３に牛し、カウンタ２
０は１１１号ツインＳ６を通って伝４つる流量ｎ１Ｍか
らの流量パルス信舅をカラン１〜し始める。次い−（゛
ピストン１１の右側の感知部′１１ａがヒンリ１９の所
を通過りるど同口、１に信号う（＞８４からの（ｎ昌【
°゛カウンタ２０１；Ｌ流量パルス信号の槓粋をｆ、？
ｉ止づる。When liquid flows into the chamber 1b, the screws 1 to 11 move as shown in the drawing (A1 moves, but the sensing part 111 on the 1- side of the piston 11)
passes Renri 18), [N1) 1B to callan l-sign "rJ goes to 1-rn333, and counter 2
0 starts transmitting the flow rate pulse signal from the flow rate n1M through the No. 111 twin S6. Next - (゛As soon as the right sensing part '11a of the piston 11 passes the hinge 19, a signal is sent to 1 (from >84)
°゛Counter 201; The output of the L flow rate pulse signal is f,?
I stop.
での間シリンダー１内の液はラインＬ６、切換弁ε）、
ライン１−４を通ってう・ｒンＬ ２から排出される。The liquid in cylinder 1 is connected to line L6, switching valve ε),
It is discharged from the urn L2 through lines 1-4.
後述の如くビス１〜ン１１はその１糸緩′ｔｌｉｉ佇１
１歳（１１１により減速され停止するが、感知部１１
ａ ｈ＜ヒンリ１７を通過りると、信号ラインＳ５から
の１３弓を受（〕制御器１２は信号うメンＳ２を通し゛
（リノ操弁′１４へのＡン（Ｆｉ号を／１．じ、切換弁
１／ｌは図示と艮対の位置に切換ねり、切換弁′１０が
開き、ｌ；７Ｊ換弁９を閉じる。As will be described later, screws 1 to 11 are loosened by the thread 1.
1 year old (decelerated and stopped by 111, but sensing unit 11
After passing through the signal line S5, the controller 12 receives the signal line S5 through the signal line S2. The switching valve 1/l is switched to a position opposite to that shown in the figure, the switching valve '10 is opened, and the switching valve 1/7J is closed.
での結果、浦ｒｉ−；ｘ＋ Ｎａからの液（３１ライン
Ｌ３、す１！／！弁Ｉ）、１０、ライン１−４を通って
ラーｆンし２から１ノ１出されビス１〜ン１１への液圧
ＩＪ、’ ＜Ｅ ＜ ＜ｒす、ビスＩ−ン１１ ｔｊ：
＋９・１１−リｋ）、。As a result, the liquid from Ura ri-; Hydraulic pressure IJ to valve 11,'<E<<r, screw valve 11 tj:
+9・11-rik),.
イしてカウンタ２０に表ホされた）Ａ１．小数１１Ｙ１
と、あらかじめ知られ（いるバイア゛ブルーパーΔの一
行程のｍどを比較し、その差が零と４ＴるＪ、うに流量
削Ｍの微少調整子ｒすを調整（〕、次に再びスター１〜
スイツプ３０を押Ｖば、制御器１２は’ｆ！ Ｉ−ｉラ
インＳ７に、カウンタ２０の帰零信号を冗し、カウンタ
２０は帰零ざ４′シ、切換弁１３へのメン１．；弓は消
され、切換弁１３は図示の位置に戻る。。A1. Decimal 11Y1
Compare the m of one stroke of the via looper Δ which is known in advance, and adjust the fine adjuster r of the flow rate cutter M until the difference is zero (4T), and then adjust the fine adjuster r of the flow rate cutter M again. ~
If switch 30 is pressed, controller 12 will be set to 'f! The return signal of the counter 20 is connected to the I-i line S7, and the counter 20 receives the return signal 4' and the main 1. ; the bow is extinguished and the switching valve 13 returns to the position shown. .
したがって切換弁７．１０が間、す１！／！ｊ′ｒ８．
５〕が閉となる。Therefore, the switching valve 7.10 is in the middle! /! j′r8.
5] is closed.
その結果。流量ＨＩ Ｍからの液はライン１３、切換弁
７、ラインニー５、ヂ］、ツヤ弁５．１３よびライン１
−６を通ってずｊ側の室１ａにはいるの°Ｃ、チＪツキ
弁５から室１ａの右端に入る液体により、感知部１１ａ
にＪ：り閉じこめられた室１ａの右端部が陽圧となるこ
とが＋％−り、スムーズにビス１〜ン１゛１は左動づ−
る。そし−（゛感知部１１ａが１＝ンリ１壓）を通過し
！、：とぎにカウンタ２０は流Ｍ ｉｔ ＩＶＩからの
流１１１パル、λ信昌４カウン［へし始め、ピストン１
１の感知部１ ’ｌ １１が１ｊンリＩ Ｊ３４通過し
たときにカラン１−４“Ｒ’ 、＋ｌ Ｌ）、感知部１
１１）がレンリ１６（、達し１（： トＪ （−二−７
（、／ Ｓ Ｂ Ｇ通ツ−テ制ｆｉｌ’ ；累’Ｉ ２
ｋニイム２シが伝、１′）り制御；；に１２からの信
号にＪ、り切換弁１４が切＋／／！ ；１′）す、流ｆ
ｆｊ ＮＩＭからの液はライン１−３、切換ブｉ７、ｔ
）、ツイン１４を）Ｄ）つでルイン１−２カ日う１ノ１
出され、ピストン１１（，１、停止Ｊる。イして再び流
ｆｆ１４Ｍの微１ｎ調整を（ｊう。［記の操作を何回か
打つＣ流量ＦＩＭの力ｔ、”ノンタ２０に表示された流
用とバイブプルーバーへの一行稈の吊との差が零近く（
こなる」、・）（こしく、二１１ノブレージ」ンを１１
う５、第２図は本発明のバイシブルーパー△のビス１−
ン（・７止（幾構を示し、第２図において、第１図（・
二苅応する部分は同じ１４号が（＝Ｊされていく）。第
１図の説明から解る通り、シリンダー１内のビス１−ン
１１σ）１］１り運ｉｐ！＋ ｋ：際し、右動も左動も
湯切換弁を切換えることにＪ二り実質的に同じ（゛ある
から、第２図に（１３いてはビス１−ン１１が〕１動し
くいる場合に′−）い（説明りる。the result. The liquid from flow rate HI M is connected to line 13, switching valve 7, line knee 5, ji], gloss valve 5.13 and line 1.
The liquid entering the chamber 1a on the j side without passing through the
J: Since the right end of the confined chamber 1a becomes positive pressure, the screws 1 to 1 will move smoothly to the left.
Ru. Then it passes through (the sensing part 11a is 1 = 1 bottle)! ,: Then the counter 20 receives the flow 111 pulses from the flow M it IVI, the λ Nobumasa 4 counter [begins to turn, the piston 1
When the sensing part 1 'l 11 of 1 passes 1jnri I J34, the sensing part 1
11) is Renri 16(, reached 1(: トJ (-2-7
(,/SBG Tsu-te system fil';cumulative'I 2
The signal from 12 is transmitted to 1'), and the switching valve 14 is turned off by the signal from 12. ;1') S, flow f
fj Liquid from NIM is on line 1-3, switching valve i7, t
), twin 14) D) Ruin 1-2 days 1 no 1
After the piston 11 (, 1, stop), make a fine adjustment of the flow ff14M (j). The difference between the diversion and the hanging of a single culm on the vibe prover is close to zero (
11
5. Figure 2 shows the screw 1- of the Bisi Looper △ of the present invention.
Figure 2 shows the number of stops (7 stops).
The part that corresponds to the two is the same No. 14 (=J is changed). As can be seen from the explanation of FIG. 1, the screw 11 in the cylinder 1 11σ)1]1 ip! +k: In both right-hand and left-hand motions, switching the hot water switching valve is substantially the same as J2. In the case ′-) (explain).
室１１）は図示の９１１＜比較的に小径の部分７：’
Ｉ：’＋成され、この小径部分の直径（１は感知部１１
１＋（１１ａ）の直径ｄ−Ｊ、リム名十人きく、１ノだ
がつ（室１１）の内壁と感知部１１１１の外周との間に
（，１小さい間隙δが形成されでいる。室１１）の端部
（ＪはラインＬ７に連通ずるボー１−３０が設（〕られ
、また軸軸方向の中間位置にライン１．８と）リエ通Ｊ
るボー１〜３゛１が設【Ｊられηいる。第１図に関する
説明から解る通り、うｒン１７はチＬツキ弁６でノ［−
１ツタされている３、ソしてライン［８は切換弁′１０
が聞いている。感知部１１１）が中間ボー１−３１を通
過Ｊるまでは液はラインｌ−８から切換弁１０ラインＬ
４を通つ−ＣラインＬｚＪ：すＩｌｌ出される１、Ｌノ
かしイτがら感知部１１１）がボー１−３１を越えてな
お左動Ｊるとさには、室１１〕内の液ＩＪ１間隙δしか
流れることがないのＣダンプ作用は比較的に大きく、そ
れ故にビス１−ン１１の速度（よ＃減速される。The chamber 11) is shown as 911<relatively small diameter portion 7:'
I: '+, and the diameter of this small diameter part (1 is the sensing part 11
A small gap δ is formed between the inner wall of the chamber 11 and the outer periphery of the sensing portion 1111. ) (J is provided with bow 1-30 that communicates with line L7, and line 1.8 is located at an intermediate position in the axial direction).
Balls 1 to 3 are set. As can be seen from the explanation regarding FIG.
1. 3, which is crossed, and the line [8 is the switching valve '10]
is listening. Until the sensing part 111) passes through the intermediate bow 1-31, the liquid flows from the line L-8 to the switching valve 10 line L.
4 - C line LzJ: When the sensing part 111) passes through the line 1-31 and still moves to the left, the liquid in the chamber 11 is discharged. The C-dumping effect of the IJ1 gap δ where only flow is relatively large, and therefore the speed of the screw 1-11 is reduced.
イしてセン（〕１６の所まで感知部’Ｉ １ ｂがくる
と、ただちに切換弁９．１０が切換えられ、ビス１−ン
１１への液圧は消失づるので、ビスＩ・ン１ ’Ｉ ＋
Ｊ ＋？ｌＩりる。レンリ１８はボー１−３１ 、ｌり
中心側に位？゛１し、かつレンリ１Ｇ（、Ｌボート：）
１より端部側にｆｉ′１ｉｆｆ Ｌ／−１いイ）。以」
の如く本発明によれば、４つのしンリ１０・・−１９の
うｌうの２つの（、！シリ１Ｇ、１７を明晩）？のり挽
え川に使用し、２つのｌ！ンリ′１８．１９〕を）仝字
訓ＩＶＩの流量パルスｈ１数用に使用し、ヒス１−ン１
１には減速作用づな４つらダンプ作用をｂ／、＝けたの
で、シ：−Ｉツク圧がＩｔ１クビストン１１がパイシブ
ルーバーΔの型に雨突づることがなく、また正（１１ｒ
なブルーフ゛作用が（゛さる。When the sensing part 'I1b reaches position 16, the switching valve 9.10 is immediately switched, and the hydraulic pressure to the screw 1-11 disappears, so the screw 1-1' I+
J+? lI Rir. Renri 18 is bow 1-31, placed on the center side?゛1 and Renri 1G (, L boat:)
fi'1iff L/-1 on the end side from 1). I”
According to the present invention, there are 4 Shinri 10...-2 of 19 (,!Siri 1G, 17 tomorrow night)? Use it to grind the seaweed and make two l! 18.19) for the number of flow pulses h1 in IVI.
1 has a deceleration effect and four damping effects of b/, = order, so that the cylinder pressure is It1.
There is a blue effect.
まｌこ本発明にｊ：れば、減速作用にＪ：り停由位ＩＫ
１が一定Ｊるので、測定流部の変動がなく、Ｊ：た従来
品の如く分岐管部をビス１−ンが通過しないの（′、シ
ール性がりくれ、実Ｙ１的に測定誤差をｂく１ことがて
゛ぎる。According to the present invention, J: is used for deceleration action:
1 is constant, so there is no fluctuation in the measurement flow section, and the screw 1-on does not pass through the branch pipe section like in conventional products (', sealing performance deteriorates, and actual measurement errors are caused by There are too many things.
第１図は本発明のバイブプルーバ−の制御回路を示７１
図、第２図は本発明のビス１〜ン停止機構を承り内ｉ面
図である。
△・・・バイブプルーバ １・・・シリンダー
１ａ、ｌｌ〕・・・端部の室 ［）、０・・・チェツ
キ弁 １１・・・し―゛ストン １′１ａ、１１１）
・・・感知部 ３０・・・ＱＢ；Ｈ部ボー１−３１・
・・中間ボー１〜FIG. 1 shows the control circuit of the vibration prover of the present invention 71
Figures 1 and 2 are internal views of the screw stopper mechanism of the present invention. △... Vibe prover 1... Cylinder
1a, ll]... End chamber [), 0... Check valve 11... Stone 1'1a, 111)
...sensing section 30...QB; H section bow 1-31.
・Intermediate bow 1~
Claims (1)
リンダー内で走行させて流量を測定するにうにしたバイ
ブプルーバーにおいで、シリンダーの端部に液圧利用の
ダンパ一手段を設（」、該タンパ−１段にＪ：リビス１
−ンを緩妊ｊ ｌ”ｉ’ 、＋ＩさＵる３ｊ、−）にし
たことを特徴どするバイブプルーバー。In the vibration prover, a screw is installed in the cylinder and the screw is moved inside the cylinder to measure the flow rate, and a damper means using hydraulic pressure is installed at the end of the cylinder. ('', J: Revis 1 in the 1st stage of the tamper
A vibrator prover characterized in that - is set to 3j, -).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57154588A JPS5944625A (en) | 1982-09-07 | 1982-09-07 | Pipe prover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57154588A JPS5944625A (en) | 1982-09-07 | 1982-09-07 | Pipe prover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5944625A true JPS5944625A (en) | 1984-03-13 |
| JPS6321124B2 JPS6321124B2 (en) | 1988-05-02 |
Family
ID=15587471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57154588A Granted JPS5944625A (en) | 1982-09-07 | 1982-09-07 | Pipe prover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5944625A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015029494A1 (en) * | 2013-08-28 | 2015-03-05 | 株式会社オーバル | Piston prover |
| US10228309B2 (en) | 2015-12-18 | 2019-03-12 | Savant Measurement Corporation | Hybrid product sampling system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102527353B1 (en) | 2018-09-26 | 2023-04-28 | 미쓰비시 덴키 빌딩 솔루션즈 가부시키가이샤 | elevator system |
| CN112703164A (en) | 2018-09-26 | 2021-04-23 | 三菱电机大楼技术服务株式会社 | Elevator system and portable terminal |
| CN112672967B (en) | 2018-09-26 | 2023-04-28 | 三菱电机楼宇解决方案株式会社 | Elevator system and portable terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5448578A (en) * | 1977-07-29 | 1979-04-17 | Nat Kaabonaijingu Co Ltd | Tester for flow meter |
| JPS5631713U (en) * | 1979-08-15 | 1981-03-27 |
-
1982
- 1982-09-07 JP JP57154588A patent/JPS5944625A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5448578A (en) * | 1977-07-29 | 1979-04-17 | Nat Kaabonaijingu Co Ltd | Tester for flow meter |
| JPS5631713U (en) * | 1979-08-15 | 1981-03-27 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015029494A1 (en) * | 2013-08-28 | 2015-03-05 | 株式会社オーバル | Piston prover |
| US9506801B2 (en) | 2013-08-28 | 2016-11-29 | Oval Corporation | Piston prover |
| US10228309B2 (en) | 2015-12-18 | 2019-03-12 | Savant Measurement Corporation | Hybrid product sampling system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6321124B2 (en) | 1988-05-02 |
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