JPS59217076A - Automatic valve for discharging condensed water in compressed air system - Google Patents

Automatic valve for discharging condensed water in compressed air system

Info

Publication number
JPS59217076A
JPS59217076A JP59058534A JP5853484A JPS59217076A JP S59217076 A JPS59217076 A JP S59217076A JP 59058534 A JP59058534 A JP 59058534A JP 5853484 A JP5853484 A JP 5853484A JP S59217076 A JPS59217076 A JP S59217076A
Authority
JP
Japan
Prior art keywords
compressed air
air system
electrical means
valve
automatic 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.)
Pending
Application number
JP59058534A
Other languages
Japanese (ja)
Inventor
エルビオ・ベルナルデイ
アントニオ・ピロ−ネ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of JPS59217076A publication Critical patent/JPS59217076A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/241Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Magnetically Actuated Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 (技術分野) 本発明は圧縮空気システムにおける凝縮水排出用自動バ
ルブに関する。
Description: TECHNICAL FIELD The present invention relates to automatic valves for condensate drainage in compressed air systems.

(背景技術) 圧縮空気システムは一般的に収集タンクに集めた凝縮水
を排出するために通常の排出システムであることはよく
知られた要求である。供給は従来バルブの開くことを制
御するための浮かぶ部品から成る自動凝縮水排出用バル
ブで成されていた。
BACKGROUND OF THE INVENTION It is a well-known requirement that compressed air systems generally be conventional exhaust systems for discharging condensate water collected in collection tanks. Supply has traditionally been provided by an automatic condensate drain valve consisting of a floating part to control the opening of the valve.

(発明の課題) 本発明の目的は、比較的簡単で、安価で作成でき、簡単
に取り付けられかつ自動排出バルブの従来タイプより小
型である圧縮空気システムにおける凝縮水排出用自動バ
ルブを提供することにある。
OBJECT OF THE INVENTION It is an object of the present invention to provide an automatic valve for condensate drainage in compressed air systems that is relatively simple, inexpensive to make, easy to install and smaller than conventional types of automatic drainage valves. It is in.

これら目的を考慮して、本発明は凝縮水を集めたタンク
でのある水位を検出するための第1電気的な手段、つま
り前記凝縮水を排出するための電磁バルブを動かす前記
第1の手段から成っていることを特徴とする圧縮空気シ
ステムにおける凝縮水排出用自動バルブに関している。
With these objects in mind, the present invention provides first electrical means for detecting a certain water level in a tank collecting condensed water, i.e. said first means for actuating a solenoid valve for discharging said condensed water. The invention relates to an automatic valve for condensate discharge in a compressed air system, characterized in that it consists of:

(発明の構成及び作用) 第1図は本発明の一実施例における回路図である。同図
において、点線で囲まれた参照番号1は前記の自動バル
ブを示し、2つの交流電圧端子3から成っていて、例え
ば220vである。2つの端子3のうちの1つはダイオ
ード4の陽極に接続しており、陰極は電磁バルブ5の端
子と接続されている。電磁バルブ5の他の端子はシリコ
ン制御ダイオード(SCR)6の陽極と接続されており
、陰極は他の端子3と接続される。制御ダイオード6の
陽極は抵抗7を介して第1のコンデンサ電極8と接続さ
れている。一方、ダイオード6の制御電極は抵抗9を介
して第2のコンデンサ電極1゜と接続されている。電極
8.lo側の前記抵抗7゜9の端子はまたそれぞれ2つ
の電極12.13と接続されている。
(Structure and operation of the invention) FIG. 1 is a circuit diagram in one embodiment of the invention. In the figure, the reference number 1 surrounded by a dotted line indicates the automatic valve described above, which consists of two alternating current voltage terminals 3, for example 220V. One of the two terminals 3 is connected to the anode of the diode 4, and the cathode is connected to the terminal of the electromagnetic valve 5. The other terminal of the electromagnetic valve 5 is connected to the anode of a silicon controlled diode (SCR) 6, and the cathode is connected to the other terminal 3. The anode of the control diode 6 is connected to a first capacitor electrode 8 via a resistor 7. On the other hand, the control electrode of the diode 6 is connected to the second capacitor electrode 1° via a resistor 9. Electrode 8. The terminals of said resistor 7.9 on the lo side are also connected in each case to two electrodes 12.13.

第2図に示されるように、前記自動バルブlは第1図に
示された電極を収容するケース2oから成っている。
As shown in FIG. 2, said automatic valve l consists of a case 2o housing the electrodes shown in FIG.

更に詳細には、前記ケース2oは上方にのびた管状部分
21とタンク23上に底部の穴22と連結のためぴった
り通るようになっている。タンク23は単に部分的にの
み示されており、集まった凝縮水にとって知られたタイ
プのものである。タンク23の内側において、2つの電
極8,10は前記部分21から突き出ており、取り付け
られている電気バルブ5上と外部への排出にとってダク
ト25を内部に形成している。電極12.13はケース
20の側面26に取り付けられている。また、ケース2
0は供給端子3に対するケーブル28で接続されている
。本発明による包含される自動排水バルブの動作は次の
とおりである。部分21によって、ケース20はタンク
23の内側に所定の高さに電極8.10を設けるために
タンク23上に側部穴22を取り付けられる。タンク2
3の内側に集められた凝縮水が前記所定の高さに達する
時、電極8と10の間に導電の原因となり、制御ダイオ
ード6のスパーク回路はスパークする。
More specifically, the case 2o fits snugly over the upwardly extending tubular portion 21 and the tank 23 for connection with the bottom hole 22. Tank 23 is only partially shown and is of the type known for collecting condensate. Inside the tank 23, the two electrodes 8, 10 protrude from said part 21 and form a duct 25 inside for drainage over the attached electric valve 5 and to the outside. Electrodes 12.13 are attached to the side surface 26 of the case 20. Also, case 2
0 is connected by a cable 28 to the supply terminal 3. The operation of the automatic drain valve included according to the present invention is as follows. By means of the part 21 the case 20 is fitted with a side hole 22 on the tank 23 for providing the electrode 8.10 at a predetermined height inside the tank 23. tank 2
When the condensate collected inside 3 reaches said predetermined height, it causes conduction between electrodes 8 and 10 and the spark circuit of control diode 6 sparks.

このようにするためには3007LA程度の電流で十分
である。制御ダイオード6の半波伝導の結果は圧縮の外
に排水するためにダクト25を徐々に開く電気バルブ5
を動かすようになる。前記凝縮水がしだいになくなると
、電極8.lOは再び電気バルブ5を閉じるため絶縁す
る。使用者は制御ダイオード6のスパーク回路をスパー
クする電極12と 13の間に指を入れることにより電
気バルブ5を作動させて、バルブ1の動作を簡単に検査
できる。
To do this, a current of about 3007 LA is sufficient. The result of the half-wave conduction of the control diode 6 is the electric valve 5 which gradually opens the duct 25 to drain out the compression.
Begins to move. When the condensed water gradually disappears, the electrode 8. lO is insulated to close the electric valve 5 again. The user can easily test the operation of the valve 1 by activating the electric valve 5 by placing his finger between the electrodes 12 and 13 which spark the spark circuit of the control diode 6.

本発明により包含される自動排水バルブの利点は構成を
含む小さな部品を用いたため安価で、また市場で簡単に
入手できる簡単な装置を供給することにある。その上、
ケース20はやっかいな道具が不必要でタンク23上の
穴22の中に簡単に取り伺けられる。当業者にとって、
本発明の主題から離れることなく、ここに示された自動
排出バルブの第2図に示した構造、第1図に示された回
路から修飾させることができることは明らかである。例
えば、電極8,10の通電による腐蝕を防ぐためには導
電性のエラストマー材質で作成できる。さらに、底部の
排出穴22の代りに特別の使用において、タンク23に
集まる凝縮水は底部から吸いこみかつタンク23の中間
をざっと出てくるためのパイプを内側に設けている。も
し、管状部分21がタンクの中間に前記穴の内側に取り
伺けられるならば、電極8,10の間の回路はちょうど
タンク23の内側での水によって接続しなくなるし、排
出電気バルブ5は動作しなくなるであろう。しかしなが
ら、本発明によりされる自動排出バルブは第1図での点
線によって示された付加的な回路で正確に動作する。ダ
イオード4の陰極はダイオード30の陽極と接続され、
ダイオード30の陰極はコンデンサ31 と接続し、直
列に抵抗32に接続され、さらにダイオード6の制御電
極に接続されている。また、供給端子3は前記圧縮空気
システムにおける(コンプレッサにおける電気モータ)
供給動作手段と並列に接続される。
An advantage of the automatic drain valve encompassed by the present invention is that it is inexpensive due to the small components involved and provides a simple device that is readily available on the market. On top of that,
The case 20 can be easily accessed into the hole 22 on the tank 23 without requiring any complicated tools. For those skilled in the art,
It will be clear that modifications can be made from the structure shown in FIG. 2 and the circuit shown in FIG. 1 of the automatic drain valve shown herein without departing from the subject matter of the invention. For example, in order to prevent corrosion of the electrodes 8 and 10 due to energization, they can be made of a conductive elastomer material. Furthermore, instead of the drain hole 22 at the bottom, in special use, a pipe is provided on the inside for the condensate water that collects in the tank 23 to be sucked in from the bottom and exit roughly through the middle of the tank 23. If the tubular part 21 is taken inside said hole in the middle of the tank, the circuit between the electrodes 8, 10 will just be disconnected by the water inside the tank 23 and the discharge electric valve 5 will be It will stop working. However, the automatic drain valve provided by the present invention operates precisely with the additional circuit shown by the dotted line in FIG. The cathode of diode 4 is connected to the anode of diode 30,
The cathode of the diode 30 is connected to a capacitor 31 , connected in series to a resistor 32 , and further connected to the control electrode of the diode 6 . In addition, the supply terminal 3 is connected to the compressed air system (an electric motor in the compressor).
connected in parallel with the supply operating means.

それゆえ、前記動作手段が動作される時にダイオード6
はダイオード30を介してコンデンサ31と抵抗32を
予じめ設定された初期の過渡期間の開動作し、排出電気
バルブ5が開いている間のコンデンサ31の充電定数に
よって決定される。もし、タンク23が圧縮されなけれ
ば、電極8,10は前記過渡期間の終了時、ダイオード
6が導通しなくなり、かつ電気バルブ5が閉じるため絶
縁される。他方、もしタンクが圧縮されれば、圧縮は内
部のパイプを介してタンク23の底部から凝縮水を吸い
こむコンプレッサによって行なわれる。
Therefore, when the operating means are operated, the diode 6
opens capacitor 31 and resistor 32 via diode 30 for a preset initial transient period, determined by the charging constant of capacitor 31 while discharge electric valve 5 is open. If the tank 23 is not compressed, the electrodes 8, 10 are insulated at the end of said transition period because the diode 6 is no longer conducting and the electric valve 5 is closed. On the other hand, if the tank is compressed, the compression is performed by a compressor that sucks condensate from the bottom of the tank 23 via internal pipes.

この場合、凝縮水の全てを開く電磁バルブ5を保持する
電極11.10に至るまで排出される。
In this case, all of the condensed water is drained up to the electrode 11.10 holding the solenoid valve 5 which opens it.

(発明の効果) 以上、説明したように本発明によれば、構成が簡単で、
かつ安価な小型化した圧縮空気システムにおける凝縮水
排出用自動バルブを提供可能となる。
(Effects of the Invention) As explained above, according to the present invention, the configuration is simple;
Moreover, it becomes possible to provide an automatic valve for draining condensed water in a compact and inexpensive compressed air system.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例における回路図、第2図は第
1図での自動弁の構造図である。 1−一一自動パルブ、 3−m=交流電圧端子、4、3
0−m−ダイオード、 5−一一電磁パルブ、 6−−−シリコン制御ダイオード、 ?、 9.32−−−一抵抗、 8−一一第1のコンデンサ電極、 10−一一第2のコンデンサ電極、 12.13−m−電極、  2o−一一ケース、21−
−一管状部分、  22−m−穴、23−m−タンク、
   25−一−ダクI・、26一−−側面、    
28−−−ケーブル、31−m−コンデンサ。 特許出願人 エルビオ へルナルティ アントニオ   ピ ロ −ネ 特許出願代理人 弁理士 山木恵〜 図面の浄書(内容に変更なし) Fig、2 手続補正書(自発) 昭和59年6月6日 特許庁長官 若杉和夫殿 1 事件の表示 昭和59年特許願第58534号 2 発明の名称 圧縮空気システムにおける凝縮水排出用自動バルブ 3 補正をする者 事件との関係  特許出願人 氏名       エルビオ ベルナルディ   (他
1に4代理人 (2)正式図面を別紙のとおり提出する。 以上
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a structural diagram of the automatic valve shown in FIG. 1. 1-11 automatic valve, 3-m = AC voltage terminal, 4, 3
0-m-diode, 5-11 electromagnetic pulse, 6----silicon control diode, ? , 9.32--1 resistor, 8-11 first capacitor electrode, 10-11 second capacitor electrode, 12.13-m-electrode, 2o-11 case, 21-
- one tubular part, 22-m-hole, 23-m-tank,
25-1-dak I, 26-1-side,
28--cable, 31-m-capacitor. Patent applicant Elvio Hernarti Antonio Pirone Patent attorney Megumi Yamaki ~ Engraving of drawings (no changes to content) Fig, 2 Procedural amendment (voluntary) June 6, 1980 Commissioner of the Japan Patent Office Wakasugi Mr. Kazuo 1 Display of the case Patent Application No. 58534 of 1980 2 Title of the invention Automatic valve for condensate discharge in compressed air system 3 Relationship to the case by the person making the amendment Name of the patent applicant Elvio Bernardi (Represented by 1 and 4 others) Person (2) Submit official drawings as attached.

Claims (1)

【特許請求の範囲】 (1) a縮水収集タンクにおける水を検出するための
第1の電気的手段[8,101を具備し、該第1の電気
的手段が前記凝縮水を排水するための電磁バルブ[51
を作動させることを特徴とする圧縮空気システムにおけ
る凝縮水排出用自動バルブ[1]。 (2)前記第1の電気的手段[8,10]が1対の電極
から成っていることを特徴とする特許請求の範囲第1項
に記載の圧縮空気システムにおける凝縮水排出用自動バ
ルブ。 (3)前記第1の電気的手段[8,10]が前記電磁バ
ルブ[5] を作動させる半導体装置[61を作動させ
、該半導体装置[8]がシリコン制御ダイオードを含み
、前記第1の電気的手段[8,101が前記ダイオード
[6]のスパーク回路と接続していることを特徴とする
特許請求の範囲第1項または第2項に記載の圧縮空気シ
ステムにおける凝縮水排出用自動バルブ。 (4)前記電磁バルブ[5]が前記半導体装置[6]を
介して交流電圧を供給されることを特徴とする特許請求
の範囲第3項に記載の圧縮空気システムにおける凝縮水
排出用自動バルブ。 (5)前記圧縮空気システムが動作し始める時に前記電
磁バルブ[51の予備的動作を行なうための第2の電気
的手段[30,31,321を有し、前記第2の電気的
手段[30,31,321は予め設定された初期の過渡
期間の開動作することを特徴とする特許請求の範囲第1
項から第4項のいずれか1つに記載の圧縮空気システム
における凝縮水排水用自動バルブ。 (6)前記第2の電気的手段[30,31,321が、
前記ダイオード[6]のスパーク回路と接続され、かつ
前記圧縮空気システムでの動作手段と同じ時間供給され
ることを特徴とする特許請求の範囲第3項から第5項ま
でのいずれか1つに記載の圧縮空気システムにおける凝
縮水排出用自動バルブ。 (7)前記第2の電気的手段が少なくとも直列に接続さ
れるタイオード[301、コンデンサ[31J及び抵抗
[32]から成ることを特徴とする特許請求の範囲第5
項または第6項に記載の圧縮空気システムにおける凝縮
水排出用自動バルブ。 (8)前記第1の電気的手段[8,10]と前記電磁バ
ルブ[5] を動作させるだめの第2の電気的手段[3
0゜31.32]と各素子[8,4,7,91が互いに
接続された回路とを収容するケース[201を有し、前
記ケース[22]は前記タンク[23]の内側にアクセ
スする第1の部分[21)と対応する部分[22]と接
続されるように設計された第1の部分[21]を有し、
前記第1の電気的手段[8,10]が前記第1の部分[
211内に収容され、前記ケース[201が前記電磁バ
ルブ[5] により制御され、かつ前記第1の部分[2
11から排出が行なわれるように設計されている連結用
ダク) [25]を更に含むことを特徴とする特許請求
の範囲第1項から第7項までのいずれか1つに記載の圧
縮空気システムにおける凝縮水排出用自動バルブ。 (8)前記第1の電気的手段[8,1,01が前記タン
ク(23]の内側に底から所定の高さ突き出ていること
を特徴とする特許請求の範囲第8項に記載の圧縮空気シ
ステムにおける凝縮水排出自動バルブ。 (10)前記ケース[20]が前記電磁バルブ[5] 
を動作させるために前記第1の電気的手段[8,10]
と並列に設けられた第3の電気的手段[12,13]が
取り伺けられた第2の部分126]を有していることを
特徴とする特許請求の範囲第8項または第9項に記載の
圧縮空気システムにおける凝縮水排出用自動バルブ。 (11)前記第3の電気的手段[12,13]が手動接
点を利用できるようにアクセスする電極から成ることを
特徴とする特許請求の範囲第1θ項に記載の圧縮空気シ
ステムにおける凝縮水排出用自動バルブ。
Claims: (1) a first electrical means for detecting water in a condensate collection tank [8,101; Solenoid valve [51
Automatic valve for draining condensed water in a compressed air system [1]. (2) Automatic valve for draining condensed water in a compressed air system according to claim 1, characterized in that the first electrical means [8, 10] consist of a pair of electrodes. (3) the first electrical means [8, 10] actuate a semiconductor device [61] which actuates the electromagnetic valve [5]; the semiconductor device [8] includes a silicon controlled diode; Automatic valve for condensate discharge in a compressed air system according to claim 1 or 2, characterized in that the electrical means [8, 101] are connected to the spark circuit of the diode [6]. . (4) An automatic valve for condensed water discharge in a compressed air system according to claim 3, wherein the electromagnetic valve [5] is supplied with an alternating current voltage via the semiconductor device [6]. . (5) a second electrical means [30, 31, 321 for performing a preliminary operation of the electromagnetic valve [51] when the compressed air system starts operating; , 31, 321 is characterized in that the opening operation is performed during a preset initial transition period.
Automatic valve for condensate drainage in a compressed air system according to any one of paragraphs 1 to 4. (6) The second electrical means [30, 31, 321,
According to any one of claims 3 to 5, characterized in that it is connected to the spark circuit of the diode [6] and is supplied for the same time as the operating means in the compressed air system. Automatic valve for condensate drainage in the compressed air system described. (7) Claim 5, characterized in that the second electrical means comprises at least a diode [301], a capacitor [31J] and a resistor [32] connected in series.
Automatic valve for draining condensate in a compressed air system according to paragraph 6. (8) A second electrical means [3] for operating the first electrical means [8, 10] and the electromagnetic valve [5].
0°31.32] and a circuit in which each element [8, 4, 7, 91 is connected to each other], the case [22] has access to the inside of the tank [23]. having a first part [21] designed to be connected to the first part [21) and the corresponding part [22];
Said first electrical means [8, 10] connects said first part [
211, the case [201 is controlled by the electromagnetic valve [5], and the first part [2
11) A compressed air system according to any one of claims 1 to 7, characterized in that it further comprises a connecting duct (connection duct) [25], which is designed such that the discharge takes place from 11. Automatic valve for condensate drainage in. (8) The compression according to claim 8, wherein the first electric means [8, 1, 01] protrudes inside the tank (23) by a predetermined height from the bottom. Automatic condensate discharge valve in an air system. (10) The case [20] is the electromagnetic valve [5]
said first electrical means [8, 10] for operating the
Claim 8 or 9, characterized in that it has a third electrical means [12, 13] provided in parallel with the second portion 126]. Automatic valve for condensate drainage in compressed air systems as described in . (11) Condensate drainage in a compressed air system according to claim 1θ, characterized in that the third electrical means [12, 13] consist of an electrode accessible by a manual contact. Automatic valve for.
JP59058534A 1983-03-28 1984-03-28 Automatic valve for discharging condensed water in compressed air system Pending JPS59217076A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT67340/83A IT1158850B (en) 1983-03-28 1983-03-28 AUTOMATIC CONDENSATE WATER DISCHARGE VALVE IN COMPRESSED AIR SYSTEMS
IT67340A/83 1983-03-28

Publications (1)

Publication Number Publication Date
JPS59217076A true JPS59217076A (en) 1984-12-07

Family

ID=11301586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59058534A Pending JPS59217076A (en) 1983-03-28 1984-03-28 Automatic valve for discharging condensed water in compressed air system

Country Status (7)

Country Link
JP (1) JPS59217076A (en)
DE (1) DE3411153A1 (en)
ES (1) ES8503815A1 (en)
FR (1) FR2543657B3 (en)
GB (1) GB2137349B (en)
IT (1) IT1158850B (en)
SE (1) SE8401692L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391250B1 (en) * 1989-04-05 1994-09-21 Berthold Koch Device for draining off the condensate from pressure or related systems
DE9216797U1 (en) * 1992-12-10 1993-04-15 Chemnitzer Spezialmaschinenfabrik GmbH BT Plauen, O-9900 Plauen Condensate tray for exhaust systems of heating systems etc.
DE19642704A1 (en) * 1996-10-16 1998-04-30 Werner Wille Condensate drain for air compressor
DE102011053407A1 (en) * 2011-09-08 2013-03-14 Beko Technologies Gmbh level monitoring
DE102011053410A1 (en) * 2011-09-08 2013-03-14 Beko Technologies Gmbh Improved process for the automatic discharge of condensate from a compressed gas system
CN110901615B (en) * 2019-11-28 2021-01-05 安徽江淮汽车集团股份有限公司 Water drain valve of air storage cylinder, air storage device and automobile brake

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525320A (en) * 1978-08-11 1980-02-23 Nec Corp Method of preventing discrepancy between line distance upon line feed, in dot serial printer utilizing step motor for line feed

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Publication number Priority date Publication date Assignee Title
US4084547A (en) * 1976-03-24 1978-04-18 Honeywell Inc. Safe start checking liquid processing system
GB1488199A (en) * 1976-08-27 1977-10-05 Pynford Ltd Drainage system
IT1125671B (en) * 1978-11-24 1986-05-14 Loomhurst Ltd CONDENSATE DRAINAGE VALVE
DE2907900A1 (en) * 1979-03-01 1980-09-11 Rudolf Geisler Regulator to control liquid level - has resistive probe coupled to regulator to allow tank discharge to be controlled
FR2460403A1 (en) * 1979-07-04 1981-01-23 Guillemot Gilbert ELECTRONIC PUMP CONTROL FOR SUCTION OF AN ELECTRICALLY NON-INSULATING LIQUID
GB2065336B (en) * 1979-11-23 1983-12-07 Mackenzie J R S Automatic level control system for an oil contaminant
GB2112151B (en) * 1981-01-09 1984-10-03 Plant Energy Syst Excess gas flow detectors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525320A (en) * 1978-08-11 1980-02-23 Nec Corp Method of preventing discrepancy between line distance upon line feed, in dot serial printer utilizing step motor for line feed

Also Published As

Publication number Publication date
FR2543657A1 (en) 1984-10-05
SE8401692L (en) 1984-09-29
FR2543657B3 (en) 1985-06-28
GB2137349B (en) 1986-09-24
DE3411153A1 (en) 1984-10-04
SE8401692D0 (en) 1984-03-27
GB2137349A (en) 1984-10-03
ES531070A0 (en) 1985-03-01
GB8407844D0 (en) 1984-05-02
IT8367340A0 (en) 1983-03-28
IT1158850B (en) 1987-02-25
ES8503815A1 (en) 1985-03-01

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