KR870010868U - Liquid level control device in storage tank - Google Patents

Liquid level control device in storage tank

Info

Publication number
KR870010868U
KR870010868U KR2019850016707U KR850016707U KR870010868U KR 870010868 U KR870010868 U KR 870010868U KR 2019850016707 U KR2019850016707 U KR 2019850016707U KR 850016707 U KR850016707 U KR 850016707U KR 870010868 U KR870010868 U KR 870010868U
Authority
KR
South Korea
Prior art keywords
control device
storage tank
liquid level
level control
liquid
Prior art date
Application number
KR2019850016707U
Other languages
Korean (ko)
Other versions
KR890000030Y1 (en
Inventor
이용종
Original Assignee
이옥자
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 이옥자 filed Critical 이옥자
Priority to KR2019850016707U priority Critical patent/KR890000030Y1/en
Publication of KR870010868U publication Critical patent/KR870010868U/en
Application granted granted Critical
Publication of KR890000030Y1 publication Critical patent/KR890000030Y1/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
KR2019850016707U 1985-12-13 1985-12-13 Level control apparatus of water storage tank KR890000030Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850016707U KR890000030Y1 (en) 1985-12-13 1985-12-13 Level control apparatus of water storage tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850016707U KR890000030Y1 (en) 1985-12-13 1985-12-13 Level control apparatus of water storage tank

Publications (2)

Publication Number Publication Date
KR870010868U true KR870010868U (en) 1987-07-13
KR890000030Y1 KR890000030Y1 (en) 1989-03-02

Family

ID=19247179

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850016707U KR890000030Y1 (en) 1985-12-13 1985-12-13 Level control apparatus of water storage tank

Country Status (1)

Country Link
KR (1) KR890000030Y1 (en)

Also Published As

Publication number Publication date
KR890000030Y1 (en) 1989-03-02

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
REGI Registration of establishment
J2X1 Appeal (before the patent court)

Free format text: TRIAL NUMBER: 1990200000125; INVALIDATION

Free format text: INVALIDATION

J2X2 Appeal (before the supreme court)

Free format text: TRIAL NUMBER: 1991300000660; APPEAL BEFORE THE SUPREME COURT FOR INVALIDATION IN ENTIRETY REQUESTED 19910530

Effective date: 19920125

Free format text: APPEAL BEFORE THE SUPREME COURT FOR INVALIDATION IN ENTIRETY REQUESTED 19910530

Effective date: 19920125

LAPS Lapse due to unpaid annual fee