FR1283584A - Optical warning device actuated by pressure difference - Google Patents

Optical warning device actuated by pressure difference

Info

Publication number
FR1283584A
FR1283584A FR855322A FR855322A FR1283584A FR 1283584 A FR1283584 A FR 1283584A FR 855322 A FR855322 A FR 855322A FR 855322 A FR855322 A FR 855322A FR 1283584 A FR1283584 A FR 1283584A
Authority
FR
France
Prior art keywords
pressure difference
warning device
device actuated
optical warning
optical
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
FR855322A
Other languages
French (fr)
Inventor
Stanley Paul Witchell
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.)
Federal Mogul Sealing Systems Slough Ltd
Original Assignee
Coopers Mechanical Joints Ltd
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 Coopers Mechanical Joints Ltd filed Critical Coopers Mechanical Joints Ltd
Priority to FR855322A priority Critical patent/FR1283584A/en
Application granted granted Critical
Publication of FR1283584A publication Critical patent/FR1283584A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR855322A 1961-03-11 1961-03-11 Optical warning device actuated by pressure difference Expired FR1283584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR855322A FR1283584A (en) 1961-03-11 1961-03-11 Optical warning device actuated by pressure difference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR855322A FR1283584A (en) 1961-03-11 1961-03-11 Optical warning device actuated by pressure difference

Publications (1)

Publication Number Publication Date
FR1283584A true FR1283584A (en) 1962-02-02

Family

ID=8750650

Family Applications (1)

Application Number Title Priority Date Filing Date
FR855322A Expired FR1283584A (en) 1961-03-11 1961-03-11 Optical warning device actuated by pressure difference

Country Status (1)

Country Link
FR (1) FR1283584A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264102B (en) * 1963-06-13 1968-03-21 Donaldson Co Inc Pressure gauge for negative pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264102B (en) * 1963-06-13 1968-03-21 Donaldson Co Inc Pressure gauge for negative pressure

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