DE3204242A1 - Druckmesser - Google Patents

Druckmesser

Info

Publication number
DE3204242A1
DE3204242A1 DE19823204242 DE3204242A DE3204242A1 DE 3204242 A1 DE3204242 A1 DE 3204242A1 DE 19823204242 DE19823204242 DE 19823204242 DE 3204242 A DE3204242 A DE 3204242A DE 3204242 A1 DE3204242 A1 DE 3204242A1
Authority
DE
Germany
Prior art keywords
magnet
pressure
axis
helix
measuring device
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.)
Granted
Application number
DE19823204242
Other languages
German (de)
English (en)
Other versions
DE3204242C2 (en, 2012
Inventor
John 91740 Glendora Calif. Hestich
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.)
Dwyer Instruments LLC
Original Assignee
Dwyer Instruments LLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22875410&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3204242(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dwyer Instruments LLC filed Critical Dwyer Instruments LLC
Publication of DE3204242A1 publication Critical patent/DE3204242A1/de
Application granted granted Critical
Publication of DE3204242C2 publication Critical patent/DE3204242C2/de
Granted 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
DE19823204242 1981-02-09 1982-02-08 Druckmesser Granted DE3204242A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/232,988 US4374475A (en) 1981-02-09 1981-02-09 Differential pressure gauge

Publications (2)

Publication Number Publication Date
DE3204242A1 true DE3204242A1 (de) 1982-09-09
DE3204242C2 DE3204242C2 (en, 2012) 1991-12-12

Family

ID=22875410

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823204242 Granted DE3204242A1 (de) 1981-02-09 1982-02-08 Druckmesser

Country Status (5)

Country Link
US (1) US4374475A (en, 2012)
JP (1) JPS57156530A (en, 2012)
CA (1) CA1162411A (en, 2012)
DE (1) DE3204242A1 (en, 2012)
GB (1) GB2092751B (en, 2012)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718279A (en) * 1986-12-01 1988-01-12 Dwyer Instruments, Inc. Dual bourdon tube type sensing pressure transducer
US4891987A (en) * 1988-11-25 1990-01-09 Stockton William E Magnetic linkage for bourdon tube gauges
US6116093A (en) * 1997-12-09 2000-09-12 Rogers; John W. Differential pressure gauge assembly
US6711525B1 (en) 1999-04-17 2004-03-23 Pneumatic Products Corporation Filter monitor
US6758097B2 (en) 2001-11-30 2004-07-06 Mija Industries Pressure gauge spring
US6854335B1 (en) 2003-12-12 2005-02-15 Mlho, Inc. Magnetically coupled tire pressure sensing system
CA2513849A1 (en) * 2004-07-29 2006-01-29 Dwyer Instruments, Inc. Gauge having a magnetically driven pointer rotation device
US7752993B2 (en) * 2007-05-25 2010-07-13 Gordon Joseph B Method and apparatus for a gauge for indicating a pressure of a fluid
US8307712B2 (en) 2009-03-06 2012-11-13 Dwyer Instruments, Inc. Pressure gage with magnetically coupled diaphragm
US8146435B1 (en) * 2010-10-17 2012-04-03 Sailsors Instruments Ltd., Beijing Differential pressure gauge
US9425007B2 (en) * 2014-09-22 2016-08-23 Moo Sung Kim Pressure-type contact switch for use in operation of pressure pump

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338101A (en) * 1965-10-21 1967-08-29 Stewart Warner Corp Bourdon tube gauges
US3373614A (en) * 1965-10-23 1968-03-19 Yarway Corp Differential pressure gauge
DE2112020A1 (de) * 1970-03-14 1971-10-07 Carlo Alinari Tiefenmesser
US3645140A (en) * 1970-06-15 1972-02-29 Dwyer Instr Pressure gauge
DE2329490A1 (de) * 1972-06-10 1973-12-20 Stradella Metall-federrohr fuer bourdon-manometerwerke mit einstellbarem fuehrungsorgan fuer das bewegliche rohrende und drehbarer lagerung fuer das feststehende ende
US3862416A (en) * 1974-03-22 1975-01-21 Dwyer Instr Pressure indicator and switch
US3992945A (en) * 1975-06-05 1976-11-23 American Chain & Cable Company, Inc. Bourdon pressure gauge having direct-coupled electronic and visual readout
US4011759A (en) * 1975-12-11 1977-03-15 Dwyer Instruments, Inc. Differential pressure gauge
US4030365A (en) * 1975-12-11 1977-06-21 Dwyer Instruments, Inc. Differential pressure gauge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929249A (en) * 1956-09-10 1960-03-22 James E Lindsay Pressure gauge
US3180152A (en) * 1962-02-09 1965-04-27 Micro Metrics Sales Corp Pressure transducer
US3807232A (en) * 1972-08-23 1974-04-30 Dresser Ind Explosion proof gauge transducer
US3789668A (en) * 1972-08-23 1974-02-05 Dresser Ind Overload protected bourdon tube
US4043197A (en) * 1976-11-04 1977-08-23 Gulton Industries, Inc. Flow rate transducer
US5142256A (en) * 1991-04-04 1992-08-25 Motorola, Inc. Pin diode with field emission device switch

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338101A (en) * 1965-10-21 1967-08-29 Stewart Warner Corp Bourdon tube gauges
US3373614A (en) * 1965-10-23 1968-03-19 Yarway Corp Differential pressure gauge
DE2112020A1 (de) * 1970-03-14 1971-10-07 Carlo Alinari Tiefenmesser
US3645140A (en) * 1970-06-15 1972-02-29 Dwyer Instr Pressure gauge
DE2329490A1 (de) * 1972-06-10 1973-12-20 Stradella Metall-federrohr fuer bourdon-manometerwerke mit einstellbarem fuehrungsorgan fuer das bewegliche rohrende und drehbarer lagerung fuer das feststehende ende
US3862416A (en) * 1974-03-22 1975-01-21 Dwyer Instr Pressure indicator and switch
US3992945A (en) * 1975-06-05 1976-11-23 American Chain & Cable Company, Inc. Bourdon pressure gauge having direct-coupled electronic and visual readout
US4011759A (en) * 1975-12-11 1977-03-15 Dwyer Instruments, Inc. Differential pressure gauge
US4030365A (en) * 1975-12-11 1977-06-21 Dwyer Instruments, Inc. Differential pressure gauge

Also Published As

Publication number Publication date
JPH0531093B2 (en, 2012) 1993-05-11
DE3204242C2 (en, 2012) 1991-12-12
US4374475A (en) 1983-02-22
GB2092751B (en) 1984-05-31
CA1162411A (en) 1984-02-21
GB2092751A (en) 1982-08-18
JPS57156530A (en) 1982-09-27

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: G01L 7/04

D2 Grant after examination
8364 No opposition during term of opposition