FR21824E - Frost protection warning device - Google Patents

Frost protection warning device

Info

Publication number
FR21824E
FR21824E FR21824A FR21824DA FR21824E FR 21824 E FR21824 E FR 21824E FR 21824 A FR21824 A FR 21824A FR 21824D A FR21824D A FR 21824DA FR 21824 E FR21824 E FR 21824E
Authority
FR
France
Prior art keywords
warning device
frost protection
protection warning
frost
warning
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
FR21824A
Other languages
French (fr)
Inventor
Arnold Calinaud
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
Application granted granted Critical
Publication of FR21824E publication Critical patent/FR21824E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/024—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type
    • G05D23/026—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being of the rod type, tube type, or of a similar type the sensing element being placed outside a regulating fluid flow

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
FR21824A 1919-10-31 1919-10-31 Frost protection warning device Expired FR21824E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR21824T 1919-10-31

Publications (1)

Publication Number Publication Date
FR21824E true FR21824E (en) 1921-03-30

Family

ID=8660808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR21824A Expired FR21824E (en) 1919-10-31 1919-10-31 Frost protection warning device

Country Status (1)

Country Link
FR (1) FR21824E (en)

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