FR86362E - Indicateur de pression différentielle - Google Patents

Indicateur de pression différentielle

Info

Publication number
FR86362E
FR86362E FR981377A FR981377A FR86362E FR 86362 E FR86362 E FR 86362E FR 981377 A FR981377 A FR 981377A FR 981377 A FR981377 A FR 981377A FR 86362 E FR86362 E FR 86362E
Authority
FR
France
Prior art keywords
differential pressure
pressure indicator
indicator
differential
pressure
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
FR981377A
Other languages
English (en)
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.)
LLOYD AND HILLMAN Ltd
Original Assignee
LLOYD AND HILLMAN 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
Priority claimed from US742657A external-priority patent/US2942572A/en
Priority claimed from US327935A external-priority patent/US3140690A/en
Application filed by LLOYD AND HILLMAN Ltd filed Critical LLOYD AND HILLMAN Ltd
Priority to FR981377A priority Critical patent/FR86362E/fr
Application granted granted Critical
Publication of FR86362E publication Critical patent/FR86362E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/12—Alarms or signals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluid Mechanics (AREA)
FR981377A 1958-06-17 1964-07-10 Indicateur de pression différentielle Expired FR86362E (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR981377A FR86362E (fr) 1958-06-17 1964-07-10 Indicateur de pression différentielle

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US742657A US2942572A (en) 1958-06-17 1958-06-17 Magnetic pressure indicator
US11928A US3077854A (en) 1958-06-17 1960-02-29 Magnetic pressure indicator
US327935A US3140690A (en) 1963-12-04 1963-12-04 Magnetic pressure indicator
FR981377A FR86362E (fr) 1958-06-17 1964-07-10 Indicateur de pression différentielle

Publications (1)

Publication Number Publication Date
FR86362E true FR86362E (fr) 1966-01-28

Family

ID=32475542

Family Applications (1)

Application Number Title Priority Date Filing Date
FR981377A Expired FR86362E (fr) 1958-06-17 1964-07-10 Indicateur de pression différentielle

Country Status (1)

Country Link
FR (1) FR86362E (fr)

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