DK147719C - Trykindikator, der viser, om en trykforskel har overskredet en fastlagt vaerdi, isaer til kontrol af filtre i hydrauliske anlaeg - Google Patents

Trykindikator, der viser, om en trykforskel har overskredet en fastlagt vaerdi, isaer til kontrol af filtre i hydrauliske anlaeg

Info

Publication number
DK147719C
DK147719C DK364179A DK364179A DK147719C DK 147719 C DK147719 C DK 147719C DK 364179 A DK364179 A DK 364179A DK 364179 A DK364179 A DK 364179A DK 147719 C DK147719 C DK 147719C
Authority
DK
Denmark
Prior art keywords
filters
control
present value
difference exceeds
pressure
Prior art date
Application number
DK364179A
Other languages
Danish (da)
English (en)
Other versions
DK147719B (da
DK364179A (da
Inventor
Bernard F Silverwater
Charles Grimm
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 DK364179A publication Critical patent/DK364179A/da
Publication of DK147719B publication Critical patent/DK147719B/da
Application granted granted Critical
Publication of DK147719C publication Critical patent/DK147719C/da

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Measuring Fluid Pressure (AREA)
  • Control Of Combustion (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Filtration Of Liquid (AREA)
  • Hydroponics (AREA)
  • Cookers (AREA)
DK364179A 1978-10-30 1979-08-30 Trykindikator, der viser, om en trykforskel har overskredet en fastlagt vaerdi, isaer til kontrol af filtre i hydrauliske anlaeg DK147719C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95629178 1978-10-30
US05/956,291 US4172971A (en) 1978-10-30 1978-10-30 Magnetic pressure indicator with thermal lockout

Publications (3)

Publication Number Publication Date
DK364179A DK364179A (da) 1980-05-01
DK147719B DK147719B (da) 1984-11-19
DK147719C true DK147719C (da) 1985-05-13

Family

ID=25498036

Family Applications (1)

Application Number Title Priority Date Filing Date
DK364179A DK147719C (da) 1978-10-30 1979-08-30 Trykindikator, der viser, om en trykforskel har overskredet en fastlagt vaerdi, isaer til kontrol af filtre i hydrauliske anlaeg

Country Status (15)

Country Link
US (1) US4172971A (de)
EP (1) EP0010569B1 (de)
JP (1) JPS6022732B2 (de)
AT (1) ATE4941T1 (de)
AU (1) AU517237B2 (de)
BR (1) BR7905259A (de)
CA (1) CA1097990A (de)
DE (1) DE2966252D1 (de)
DK (1) DK147719C (de)
ES (1) ES482129A1 (de)
FI (1) FI66693C (de)
MX (1) MX147388A (de)
NO (1) NO151259C (de)
PT (1) PT69831A (de)
ZA (1) ZA792988B (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246110A (en) * 1979-11-09 1981-01-20 J. I. Case Company Compensating device for filter contaminant indicating system
DE3131873A1 (de) * 1980-09-20 1983-04-07 Robert Bosch Gmbh, 7000 Stuttgart Druckgeber, insbesondere fuer ein kraftfahrzeug
WO1982002498A1 (en) * 1981-01-19 1982-08-05 Joe E Fuzzell A temperature compensated differential fluid pressure switch
US4426952A (en) 1981-02-09 1984-01-24 Facet Enterprises, Inc. Temperature compensated differential pressure indicating device
US4498495A (en) * 1981-08-04 1985-02-12 Pall Corporation Magnetic differential pressure valve with an indicator showing when valve has opened or closed
US4475407A (en) * 1982-12-27 1984-10-09 Brunswick Corporation Temperature compensated flow sensor
JPS613448U (ja) * 1984-06-13 1986-01-10 日吉工業株式会社 フイルタ−の目詰り検知装置
DE3700593A1 (de) * 1986-01-13 1987-07-16 Sharp Kk Rotations-entwicklungsvorrichtung
US4867095A (en) * 1988-04-05 1989-09-19 Parker Hannifin Corporation Differential pressure indicator
FR2659141B1 (fr) * 1990-03-01 1994-03-25 Lebozec Gautier Indicateur de colmatage.
US5188728A (en) * 1989-10-31 1993-02-23 Le Bozec Et Gautier Clogging display with shape memory alloy spring actuator
FI910694A7 (fi) * 1991-02-13 1992-08-14 Finn Filter Oy Foerfarande och anordning foer bevakning av tryckskillnad.
US5437241A (en) * 1994-06-08 1995-08-01 Pall Corporation Differential pressure 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
US6289879B1 (en) 1999-11-24 2001-09-18 Parker-Hannifin Corp. Air eliminating return fuel recirculation valve
US7157653B1 (en) 2005-09-20 2007-01-02 Deltrol Controls Magnetic latching switch
US8710386B2 (en) * 2011-02-04 2014-04-29 Sensata Technologies, Inc. Fluid pressure responsive electric switch
PL3012705T3 (pl) * 2014-10-22 2017-07-31 Danfoss A/S Układ zaworowy wymiennika ciepła, system grzewczy i sposób działania systemu grzewczego
RU2625043C1 (ru) * 2016-07-08 2017-07-11 Акционерное общество Энгельсское опытно-конструкторское бюро "Сигнал" им. А.И. Глухарева Комбинированный сигнализатор давления и температуры фильтра
CN113820195B (zh) * 2021-11-25 2022-03-08 成都宜乐芯生物科技有限公司 一种多通道并行前处理装置
CN117379853A (zh) * 2023-10-27 2024-01-12 新乡航空工业(集团)有限公司 一种具有温度锁闭功能的过滤器压差指示器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332150A (de) * 1963-12-16
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
US3364897A (en) * 1964-09-25 1968-01-23 Purolator Products Inc Differential fluid pressure indicator
US3841259A (en) * 1971-06-21 1974-10-15 Parmatic Inc Differential pressure indicator
US3785332A (en) * 1972-01-31 1974-01-15 Pall Corp Magnetic pressure indicator
US3815542A (en) * 1972-07-27 1974-06-11 Pall Corp Magnetic pressure indicator
US4026153A (en) * 1975-08-08 1977-05-31 Pall Corporation Magnetic pressure indicator with sampling ports

Also Published As

Publication number Publication date
EP0010569B1 (de) 1983-10-05
DE2966252D1 (en) 1983-11-10
FI66693B (fi) 1984-07-31
NO792566L (no) 1980-05-02
AU4783979A (en) 1980-05-08
ZA792988B (en) 1980-08-27
MX147388A (es) 1982-11-26
ES482129A1 (es) 1980-02-16
US4172971A (en) 1979-10-30
FI792468A7 (fi) 1980-05-01
EP0010569A1 (de) 1980-05-14
CA1097990A (en) 1981-03-24
BR7905259A (pt) 1980-05-06
DK147719B (da) 1984-11-19
ATE4941T1 (de) 1983-10-15
NO151259B (no) 1984-11-26
PT69831A (en) 1979-07-01
JPS6022732B2 (ja) 1985-06-04
DK364179A (da) 1980-05-01
JPS5560831A (en) 1980-05-08
NO151259C (no) 1985-03-06
FI66693C (fi) 1984-11-12
AU517237B2 (en) 1981-07-16

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Legal Events

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PBP Patent lapsed