DE3671174D1 - Druckanzeiger. - Google Patents

Druckanzeiger.

Info

Publication number
DE3671174D1
DE3671174D1 DE8686307313T DE3671174T DE3671174D1 DE 3671174 D1 DE3671174 D1 DE 3671174D1 DE 8686307313 T DE8686307313 T DE 8686307313T DE 3671174 T DE3671174 T DE 3671174T DE 3671174 D1 DE3671174 D1 DE 3671174D1
Authority
DE
Germany
Prior art keywords
pressure indicator
indicator
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 - Fee Related
Application number
DE8686307313T
Other languages
English (en)
Inventor
Bernard Silverwater
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.)
Pall Corp
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
Application granted granted Critical
Publication of DE3671174D1 publication Critical patent/DE3671174D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00—Signals and indicators
    • Y10S116/42—Oil filter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
DE8686307313T 1985-09-27 1986-09-23 Druckanzeiger. Expired - Fee Related DE3671174D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/781,222 US4651670A (en) 1985-09-27 1985-09-27 Pressure indicating device

Publications (1)

Publication Number Publication Date
DE3671174D1 true DE3671174D1 (de) 1990-06-21

Family

ID=25122068

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686307313T Expired - Fee Related DE3671174D1 (de) 1985-09-27 1986-09-23 Druckanzeiger.

Country Status (6)

Country Link
US (1) US4651670A (de)
EP (1) EP0221661B1 (de)
JP (1) JPH0629820B2 (de)
CA (1) CA1275579C (de)
DE (1) DE3671174D1 (de)
GB (1) GB2181551B (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4729339A (en) * 1986-04-21 1988-03-08 Facet Enterprises, Inc. Pressure differential indicator with non-mechanical thermal lockout
US4818385A (en) * 1987-08-31 1989-04-04 Medley Iii Frank W Filter with high pressure indicator
US4936247A (en) * 1988-09-06 1990-06-26 Sundstrand Corporation Visual and tactile indication of coupling status of an integrated drive generator
JPH02251727A (ja) * 1989-03-27 1990-10-09 Taisei Kogyo Kk 差圧計
US4926786A (en) * 1989-04-10 1990-05-22 White Thomas C Restaurant signaling device
GB2255826B (en) * 1991-05-13 1994-08-24 Pall Corp Indicators
US5509622A (en) * 1994-04-25 1996-04-23 General Nucleonics, Inc. Protective cover, radiation shield and test unit for helicopter blade crack indicator
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
MX9800803A (es) * 1995-08-04 1998-04-30 Donaldson Co Inc Indicador de restriccion para limpiadores de aire.
US6019126A (en) * 1998-09-04 2000-02-01 Kelada; Maher I. Remote function verification of low pressure and vacuum relief devices
US7886610B2 (en) * 1999-07-19 2011-02-15 Donaldson Company, Inc. Differential pressure gauge for filter
US6604486B1 (en) 1999-08-16 2003-08-12 Donaldson Company, Inc. Restriction indicator
NO336565B1 (no) 2012-06-22 2015-09-28 Innovar Engineering As Anordning ved trykkmåler og fremgangsmåte ved bruk av samme
US9539530B2 (en) * 2013-11-22 2017-01-10 Standex International Corporation Pressure differential indicator
DE102014014730B4 (de) * 2014-04-16 2021-05-27 Hydac Filtertechnik Gmbh Verschmutzungsanzeige
US9821256B2 (en) * 2014-05-07 2017-11-21 Dv Industries, Llc Elastically deformable component providing indication of proper fluid filter installation and related methods
US10585011B2 (en) * 2016-07-15 2020-03-10 Sumptracker, Llc Sump pump tracking device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA893249A (en) * 1972-02-15 The Carborundum Company Magnetic pressure indicator
US3125062A (en) * 1964-03-17 Differential pressure responsive device
US1204013A (en) * 1915-11-06 1916-11-07 Ernest Hanni Spark-plug pressure-indicator.
US1444152A (en) * 1920-04-12 1923-02-06 Adam E Hahn Tire gauge
US2671834A (en) * 1952-01-23 1954-03-09 Mcdonnell & Miller Inc Level controlled switch mechanism
US2942572A (en) * 1958-06-17 1960-06-28 Pall Corp Magnetic pressure indicator
US3140690A (en) * 1963-12-04 1964-07-14 Pall Corp Magnetic pressure indicator
US3128743A (en) * 1961-05-26 1964-04-14 Bendix Corp Differential pressure responsive device
US3216571A (en) * 1962-06-25 1965-11-09 Bendix Corp Fluid filter and indicator therefor
US3291307A (en) * 1963-09-24 1966-12-13 Rosaen Filter Co Removable tubular filter and baffle construction
US3187711A (en) * 1963-12-19 1965-06-08 Pall Corp Magnetic pressure indicator
US3335863A (en) * 1963-12-23 1967-08-15 Pall Corp Differential pressure indicators of controlled response to flow surges and filter assemblies including the same
US3212471A (en) * 1964-04-03 1965-10-19 Purolator Products Inc Differential pressure indicator
US3335694A (en) * 1964-09-04 1967-08-15 Dwyer Mfg Co F W Bistable magnetic pressure indicator
DE1605272A1 (de) * 1967-06-09 1970-08-20 Knorr Bremse Gmbh Vorrichtung zur Anzeige von Undichtigkeiten in Druckluftbremssystemen
SU398850A1 (ru) * 1972-01-04 1973-09-27 Сигнализатор засорения фильтра
US3815542A (en) * 1972-07-27 1974-06-11 Pall Corp Magnetic pressure indicator
US3974795A (en) * 1975-06-18 1976-08-17 Facet Enterprises, Inc. Filter Products Division Differential pressure indicating device
US4574728A (en) * 1984-06-07 1986-03-11 Purolator Technologies Inc. Filter differential pressure impending and bypass indicator

Also Published As

Publication number Publication date
GB2181551B (en) 1989-12-13
EP0221661B1 (de) 1990-05-16
EP0221661A3 (en) 1987-08-19
GB2181551A (en) 1987-04-23
JPS62126323A (ja) 1987-06-08
JPH0629820B2 (ja) 1994-04-20
US4651670A (en) 1987-03-24
GB8622773D0 (en) 1986-10-29
EP0221661A2 (de) 1987-05-13
CA1275579C (en) 1990-10-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee