SE391240B - Magnetisk tryckindikator - Google Patents

Magnetisk tryckindikator

Info

Publication number
SE391240B
SE391240B SE7301226A SE7301226A SE391240B SE 391240 B SE391240 B SE 391240B SE 7301226 A SE7301226 A SE 7301226A SE 7301226 A SE7301226 A SE 7301226A SE 391240 B SE391240 B SE 391240B
Authority
SE
Sweden
Prior art keywords
pressure indicator
magnetic pressure
magnetic
indicator
pressure
Prior art date
Application number
SE7301226A
Other languages
English (en)
Inventor
B F Silverwater
Original Assignee
Pall Corp
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 Pall Corp filed Critical Pall Corp
Publication of SE391240B publication Critical patent/SE391240B/sv

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
SE7301226A 1972-01-31 1973-01-30 Magnetisk tryckindikator SE391240B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22226672A 1972-01-31 1972-01-31

Publications (1)

Publication Number Publication Date
SE391240B true SE391240B (sv) 1977-02-07

Family

ID=22831552

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7301226A SE391240B (sv) 1972-01-31 1973-01-30 Magnetisk tryckindikator

Country Status (8)

Country Link
US (1) US3785332A (sv)
JP (1) JPS528198B2 (sv)
CA (1) CA993277A (sv)
DE (1) DE2304317C3 (sv)
FR (1) FR2170032B1 (sv)
GB (1) GB1412023A (sv)
IT (1) IT977149B (sv)
SE (1) SE391240B (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974795A (en) * 1975-06-18 1976-08-17 Facet Enterprises, Inc. Filter Products Division Differential pressure indicating device
US4026153A (en) * 1975-08-08 1977-05-31 Pall Corporation Magnetic pressure indicator with sampling ports
US4172971A (en) * 1978-10-30 1979-10-30 Pall Corporation Magnetic pressure indicator with thermal lockout
US4426952A (en) * 1981-02-09 1984-01-24 Facet Enterprises, Inc. Temperature compensated differential pressure indicating device
JPS6146822U (ja) * 1984-08-30 1986-03-28 株式会社 コマバ製作所 固定具
US4729339A (en) * 1986-04-21 1988-03-08 Facet Enterprises, Inc. Pressure differential indicator with non-mechanical thermal lockout
GB2255826B (en) * 1991-05-13 1994-08-24 Pall Corp Indicators
US5437241A (en) * 1994-06-08 1995-08-01 Pall Corporation Differential pressure indicator
US5497725A (en) * 1994-06-17 1996-03-12 Theisen; Terry J. Sight indicator
GB2297161B (en) * 1995-01-23 1998-09-23 Pall Corp Differential pressure indicators
GB2297620B (en) * 1995-02-06 1998-10-07 Pall Corp Filter assemblies comprising differential pressure indicators
US7204149B1 (en) 2005-12-07 2007-04-17 D-M-E Company Apparatus for indicating pressure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140690A (en) * 1963-12-04 1964-07-14 Pall Corp Magnetic pressure indicator
US2942572A (en) * 1958-06-17 1960-06-28 Pall Corp Magnetic pressure indicator
US3077176A (en) * 1961-04-06 1963-02-12 Pall Corp Magnetic pressure-responsive devices
US3187711A (en) * 1963-12-19 1965-06-08 Pall Corp Magnetic pressure indicator
US3212471A (en) * 1964-04-03 1965-10-19 Purolator Products Inc Differential pressure indicator
US3568625A (en) * 1968-11-05 1971-03-09 Fairfield Facility Commercial Differential pressure indicator

Also Published As

Publication number Publication date
FR2170032A1 (sv) 1973-09-14
DE2304317C3 (de) 1980-01-10
CA993277A (en) 1976-07-20
JPS4888979A (sv) 1973-11-21
JPS528198B2 (sv) 1977-03-07
DE2304317B2 (de) 1979-05-10
US3785332A (en) 1974-01-15
FR2170032B1 (sv) 1977-07-29
IT977149B (it) 1974-09-10
GB1412023A (en) 1975-10-29
DE2304317A1 (de) 1973-08-09

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