FR540063A - Main gas line pressure monitor - Google Patents

Main gas line pressure monitor

Info

Publication number
FR540063A
FR540063A FR540063DA FR540063A FR 540063 A FR540063 A FR 540063A FR 540063D A FR540063D A FR 540063DA FR 540063 A FR540063 A FR 540063A
Authority
FR
France
Prior art keywords
line pressure
gas line
main gas
pressure monitor
monitor
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
Application number
Other languages
French (fr)
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.)
Beazer East Inc
Koppers Co of Delaware
Original Assignee
Koppers Co of Delaware
Koppers Co Inc
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 Koppers Co of Delaware, Koppers Co Inc filed Critical Koppers Co of Delaware
Application granted granted Critical
Publication of FR540063A publication Critical patent/FR540063A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
    • G05D16/187—Control of fluid pressure with auxiliary non-electric power derived from an external source using pistons within the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
FR540063D 1920-04-10 1921-08-30 Main gas line pressure monitor Expired FR540063A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540063XA 1920-04-10 1920-04-10

Publications (1)

Publication Number Publication Date
FR540063A true FR540063A (en) 1922-07-05

Family

ID=21988091

Family Applications (1)

Application Number Title Priority Date Filing Date
FR540063D Expired FR540063A (en) 1920-04-10 1921-08-30 Main gas line pressure monitor

Country Status (1)

Country Link
FR (1) FR540063A (en)

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