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FR2428845A1 - Detecting low airflow between two areas - using metal oxide coated ball in tube with proximity detector - Google Patents

Detecting low airflow between two areas - using metal oxide coated ball in tube with proximity detector

Info

Publication number
FR2428845A1
FR2428845A1FR7819060AFR7819060AFR2428845A1FR 2428845 A1FR2428845 A1FR 2428845A1FR 7819060 AFR7819060 AFR 7819060AFR 7819060 AFR7819060 AFR 7819060AFR 2428845 A1FR2428845 A1FR 2428845A1
Authority
FR
France
Prior art keywords
ball
tube
metal oxide
areas
oxide coated
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.)
Pending
Application number
FR7819060A
Other languages
French (fr)
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.)
NEU SA
Original Assignee
NEU SA
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 NEU SAfiledCriticalNEU SA
Priority to FR7819060ApriorityCriticalpatent/FR2428845A1/en
Publication of FR2428845A1publicationCriticalpatent/FR2428845A1/en
Pendinglegal-statusCriticalCurrent

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Classifications

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Abstract

The straight cylindrical tube (1) of large diameter contains a very light ball (2). Both tube and ball are calibrated and the diameter of the ball is close to the internal tube diameter. Two cross elements (3) allow passage of air but the ball. The tube assembly is rotated (7) and locked (8) on a base (6) and a bubble level (10) enables the inclination angle to be set. The ball position is sensed by photocells and luminous sources or by coating the ball with metal oxide for magnetic or capacitive proximity detectors (11).
FR7819060A1978-06-161978-06-16Detecting low airflow between two areas - using metal oxide coated ball in tube with proximity detectorPendingFR2428845A1 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
FR7819060AFR2428845A1 (en)1978-06-161978-06-16Detecting low airflow between two areas - using metal oxide coated ball in tube with proximity detector

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
FR7819060AFR2428845A1 (en)1978-06-161978-06-16Detecting low airflow between two areas - using metal oxide coated ball in tube with proximity detector

Publications (1)

Publication NumberPublication Date
FR2428845A1true FR2428845A1 (en)1980-01-11

Family

ID=9209994

Family Applications (1)

Application NumberTitlePriority DateFiling Date
FR7819060APendingFR2428845A1 (en)1978-06-161978-06-16Detecting low airflow between two areas - using metal oxide coated ball in tube with proximity detector

Country Status (1)

CountryLink
FR (1)FR2428845A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
EP0164350A4 (en)*1983-11-291987-03-30Bloxom Ingrid BurmaColonic or intestinal irrigation system with directional flow monitor.
WO2018098339A1 (en)2016-11-232018-05-31Wiseman Brian MDirectional differential pressure detector
US10942197B2 (en)2013-03-152021-03-09Brian M. WisemanDirectional differential pressure detector
US11340127B2 (en)2019-10-182022-05-24AirFlow Direction, Inc.Directional differential pressure detector
US11415475B2 (en)2019-10-222022-08-16AirFlow Direction, Inc.Directional differential pressure detector with improved reliability
US11415594B2 (en)2019-05-302022-08-16AirFlow Direction, Inc.Directional differential pressure detector for indicating potential or actual directional air flow
US11423918B2 (en)2019-05-302022-08-23AirFlow Direction, Inc.Directional differential pressure detector
US11460481B2 (en)2019-05-302022-10-04AirFlow Directions, Inc.Directional differential pressure detector having a differential pressure set point indicator
US12228587B2 (en)2014-05-202025-02-18AirFlow Direction, Inc.Directional differential pressure detector
US12411053B2 (en)2022-04-212025-09-09AirFlow Direction, Inc.Interchangeable directional differential pressure detector

Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
FR1417920A (en)*1964-12-211965-11-12Simmonds Prec Productsinc Electrical device for the remote indication of temperature and pressure, electrical measuring system equipped with this device and their various applications
US3414013A (en)*1966-09-161968-12-03Taylor Instrument CoDifferential pressure indicator
DE1773963A1 (en)*1968-08-011971-08-26Honsberg & Co Kg Device for the electrical monitoring of differential pressures
US3699560A (en)*1970-10-081972-10-17Bendix CorpPrecision position indicator
FR2150323A1 (en)*1971-08-211973-04-06Martinez Daniel Emilio
FR2334091A1 (en)*1975-12-041977-07-01Gerdts Gustav F KgMonitor for quantity of flowing medium - delivers signal when quantity exceeds or does not reach specified value

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
FR1417920A (en)*1964-12-211965-11-12Simmonds Prec Productsinc Electrical device for the remote indication of temperature and pressure, electrical measuring system equipped with this device and their various applications
US3414013A (en)*1966-09-161968-12-03Taylor Instrument CoDifferential pressure indicator
DE1773963A1 (en)*1968-08-011971-08-26Honsberg & Co Kg Device for the electrical monitoring of differential pressures
US3699560A (en)*1970-10-081972-10-17Bendix CorpPrecision position indicator
FR2150323A1 (en)*1971-08-211973-04-06Martinez Daniel Emilio
FR2334091A1 (en)*1975-12-041977-07-01Gerdts Gustav F KgMonitor for quantity of flowing medium - delivers signal when quantity exceeds or does not reach specified value

Cited By (19)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
EP0164350A4 (en)*1983-11-291987-03-30Bloxom Ingrid BurmaColonic or intestinal irrigation system with directional flow monitor.
US11789035B2 (en)2013-03-152023-10-17AirFlow Direction, Inc.Directional differential pressure detector
US10942197B2 (en)2013-03-152021-03-09Brian M. WisemanDirectional differential pressure detector
US11454644B2 (en)2013-03-152022-09-27AirFlow Direction, Inc.Directional differential pressure detector
US12228587B2 (en)2014-05-202025-02-18AirFlow Direction, Inc.Directional differential pressure detector
WO2018098339A1 (en)2016-11-232018-05-31Wiseman Brian MDirectional differential pressure detector
EP3545316A4 (en)*2016-11-232020-07-22Wiseman, Brian, M. DIRECTIONAL DIFFERENTIAL PRESSURE DETECTOR
EP4016089A1 (en)*2016-11-232022-06-22Wiseman, Brian, M.Directional differential pressure detector
US11415477B2 (en)2016-11-232022-08-16AirFlow Direction, Inc.Directional differential pressure detector having an inclined conduit and a pitch indicator
US11415594B2 (en)2019-05-302022-08-16AirFlow Direction, Inc.Directional differential pressure detector for indicating potential or actual directional air flow
US11423918B2 (en)2019-05-302022-08-23AirFlow Direction, Inc.Directional differential pressure detector
US11460481B2 (en)2019-05-302022-10-04AirFlow Directions, Inc.Directional differential pressure detector having a differential pressure set point indicator
US11340127B2 (en)2019-10-182022-05-24AirFlow Direction, Inc.Directional differential pressure detector
US11733116B2 (en)2019-10-182023-08-22AirFlow Direction, Inc.Directional differential pressure detector
US12313484B2 (en)2019-10-182025-05-27AirFlow Direction, Inc.Directional differential pressure detector
US11644376B2 (en)2019-10-222023-05-09AirFlow Direction, Inc.Directional differential pressure detector
US12181354B2 (en)2019-10-222024-12-31AirFlow Direction, Inc.Directional differential pressure detector
US11415475B2 (en)2019-10-222022-08-16AirFlow Direction, Inc.Directional differential pressure detector with improved reliability
US12411053B2 (en)2022-04-212025-09-09AirFlow Direction, Inc.Interchangeable directional differential pressure detector

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