FR2161236A5 - Filter with automatic by-pass - actuated by excessive pressure drop and signalling blocked condition electrically - Google Patents

Filter with automatic by-pass - actuated by excessive pressure drop and signalling blocked condition electrically

Info

Publication number
FR2161236A5
FR2161236A5 FR7141284A FR7141284A FR2161236A5 FR 2161236 A5 FR2161236 A5 FR 2161236A5 FR 7141284 A FR7141284 A FR 7141284A FR 7141284 A FR7141284 A FR 7141284A FR 2161236 A5 FR2161236 A5 FR 2161236A5
Authority
FR
France
Prior art keywords
filter
pass
signalling
actuated
automatic
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
Application number
FR7141284A
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.)
DBA
Original Assignee
DBA
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 DBA filed Critical DBA
Priority to FR7141284A priority Critical patent/FR2161236A5/en
Application granted granted Critical
Publication of FR2161236A5 publication Critical patent/FR2161236A5/en
Expired legal-status Critical Current

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
    • 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
    • B01D35/147—Bypass or safety valves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Safety Valves (AREA)

Abstract

A cylindrical filter, closed at one end, is held in posn against a seating in a sleeve by a spring, so that when blockage causes excessive perssure drop, the filter holder is displaced, permitting by-pass flow, and comes into contact with a conductor, to complete an electrical warning circuit. The cylindrical sleeve has an axial inlet, and the valve may be at this inlet, or alternatively may be a sliding valve at side outlet, closed during normal operation. The electrical signal may alternatively be produced by breaking an electrical circuit closed when filter holder is in operating posn. The device is compact.
FR7141284A 1971-11-18 1971-11-18 Filter with automatic by-pass - actuated by excessive pressure drop and signalling blocked condition electrically Expired FR2161236A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7141284A FR2161236A5 (en) 1971-11-18 1971-11-18 Filter with automatic by-pass - actuated by excessive pressure drop and signalling blocked condition electrically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7141284A FR2161236A5 (en) 1971-11-18 1971-11-18 Filter with automatic by-pass - actuated by excessive pressure drop and signalling blocked condition electrically

Publications (1)

Publication Number Publication Date
FR2161236A5 true FR2161236A5 (en) 1973-07-06

Family

ID=9085971

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7141284A Expired FR2161236A5 (en) 1971-11-18 1971-11-18 Filter with automatic by-pass - actuated by excessive pressure drop and signalling blocked condition electrically

Country Status (1)

Country Link
FR (1) FR2161236A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761898A3 (en) * 1997-04-09 1998-10-16 Ades Technologies Valve incorporating filter for compressed air supply
DE112019001391B4 (en) 2018-03-19 2024-02-15 Isuzu Motors Limited DETECTION DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761898A3 (en) * 1997-04-09 1998-10-16 Ades Technologies Valve incorporating filter for compressed air supply
DE112019001391B4 (en) 2018-03-19 2024-02-15 Isuzu Motors Limited DETECTION DEVICE

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Legal Events

Date Code Title Description
ST Notification of lapse