SE433004B - Apparat for indikering av fluidumtryckskillnader - Google Patents

Apparat for indikering av fluidumtryckskillnader

Info

Publication number
SE433004B
SE433004B SE7712318A SE7712318A SE433004B SE 433004 B SE433004 B SE 433004B SE 7712318 A SE7712318 A SE 7712318A SE 7712318 A SE7712318 A SE 7712318A SE 433004 B SE433004 B SE 433004B
Authority
SE
Sweden
Prior art keywords
piston
fluid pressure
housing
fluid
chamber
Prior art date
Application number
SE7712318A
Other languages
English (en)
Swedish (sv)
Other versions
SE7712318L (sv
Inventor
Nils O Rosaen
Original Assignee
Nils O Rosaen
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 Nils O Rosaen filed Critical Nils O Rosaen
Publication of SE7712318L publication Critical patent/SE7712318L/
Publication of SE433004B publication Critical patent/SE433004B/sv

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • 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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Measuring Fluid Pressure (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
SE7712318A 1977-09-08 1977-11-01 Apparat for indikering av fluidumtryckskillnader SE433004B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/831,385 US4139466A (en) 1977-09-08 1977-09-08 Differential fluid pressure indicating device

Publications (2)

Publication Number Publication Date
SE7712318L SE7712318L (sv) 1979-03-09
SE433004B true SE433004B (sv) 1984-04-30

Family

ID=25258935

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7712318A SE433004B (sv) 1977-09-08 1977-11-01 Apparat for indikering av fluidumtryckskillnader

Country Status (8)

Country Link
US (1) US4139466A (de)
JP (1) JPS5441784A (de)
CA (1) CA1083893A (de)
DE (1) DE2749689A1 (de)
FR (1) FR2402864A1 (de)
GB (1) GB1545173A (de)
IT (1) IT1113810B (de)
SE (1) SE433004B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378751A (en) * 1978-05-08 1983-04-05 Siemens-Allis, Inc. Condition indicating device for a puffer type load break switch
US4272368A (en) * 1979-09-04 1981-06-09 Parker-Hannifin Corporation Fluid filter and indicator
US4818385A (en) * 1987-08-31 1989-04-04 Medley Iii Frank W Filter with high pressure indicator
US5718822A (en) * 1995-09-27 1998-02-17 The Metraflex Company Differential pressure apparatus for detecting accumulation of particulates in a filter
US6190442B1 (en) * 1999-08-31 2001-02-20 Tishken Products Co. Air filter gauge
EP1479426A1 (de) * 2003-05-21 2004-11-24 Levitronix LLC Filtervorrichtung, sowie ein Verfahren zur Beurteilung des Zustandes einer Filtervorrichtung
US20050284802A1 (en) * 2004-06-23 2005-12-29 Jankuski George A Filtering device with integral filter status indicator
CN100587436C (zh) * 2008-05-06 2010-02-03 中国人民解放军军事医学科学院卫生装备研究所 超压与负压防护装置监测与报警系统
US10016707B2 (en) 2015-01-15 2018-07-10 The Metraflex Company Pipeline strainer
US10690560B2 (en) 2016-11-23 2020-06-23 Brian M. Wiseman Directional differential pressure detector having an adjustable pivot arm
US11415594B2 (en) 2019-05-30 2022-08-16 AirFlow Direction, Inc. Directional differential pressure detector for indicating potential or actual directional air flow
US11460481B2 (en) 2019-05-30 2022-10-04 AirFlow Directions, Inc. Directional differential pressure detector having a differential pressure set point indicator
US11423918B2 (en) 2019-05-30 2022-08-23 AirFlow Direction, Inc. Directional differential pressure detector
EP4048994A4 (de) 2019-10-22 2023-11-22 Airflow Direction, Inc. Direktionaler differenzdruckdetektor
WO2023119257A1 (en) * 2021-12-24 2023-06-29 Intex Industries Xiamen Co. Ltd. A filter medium contamination detection structure, a filter device, and a filter with abnormal warning function

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954751A (en) * 1958-05-09 1960-10-04 Bendix Corp Visible filter clogging indicator
US2979021A (en) * 1959-01-06 1961-04-11 Purolator Products Inc Filter unit
US3042076A (en) * 1959-01-27 1962-07-03 Purolator Products Inc Filter signal device
US3043262A (en) * 1959-03-24 1962-07-10 Purolator Products Inc Magnetic filter signal device
US3029836A (en) * 1959-04-20 1962-04-17 Purolator Products Inc Mechanical signal device
US3022764A (en) * 1959-04-21 1962-02-27 Purolator Products Inc Mechanical signal device
US3028009A (en) * 1959-12-10 1962-04-03 Purolator Products Inc Locking device for movable rod
US3052206A (en) * 1960-11-29 1962-09-04 Purolator Products Inc Indicator device
US3146757A (en) * 1961-05-31 1964-09-01 Bernard R Heymann Differential pressure indicator
US3247824A (en) * 1964-04-20 1966-04-26 Fire Guard Corp Pressure indicator
US3815542A (en) * 1972-07-27 1974-06-11 Pall Corp Magnetic pressure indicator
JPS5319399Y2 (de) * 1973-08-10 1978-05-23
US3950248A (en) * 1974-04-11 1976-04-13 Parker-Hannifin Corporation Fluid filtering device
SE394076B (sv) * 1975-08-29 1977-06-06 Electrolux Ab Indikatoranordning for dammsugare.

Also Published As

Publication number Publication date
FR2402864A1 (fr) 1979-04-06
IT1113810B (it) 1986-01-27
US4139466A (en) 1979-02-13
JPS5441784A (en) 1979-04-03
CA1083893A (en) 1980-08-19
DE2749689A1 (de) 1979-07-26
GB1545173A (en) 1979-05-02
FR2402864B1 (de) 1981-12-24
SE7712318L (sv) 1979-03-09

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