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GB1147376A - Method and apparatus for detecting defects in air-permeable bodies - Google Patents

Method and apparatus for detecting defects in air-permeable bodies

Info

Publication number
GB1147376A
GB1147376A GB4947566A GB4947566A GB1147376A GB 1147376 A GB1147376 A GB 1147376A GB 4947566 A GB4947566 A GB 4947566A GB 4947566 A GB4947566 A GB 4947566A GB 1147376 A GB1147376 A GB 1147376A
Authority
GB
United Kingdom
Prior art keywords
air
filter
defects
shroud
receiving surface
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
GB4947566A
Inventor
Raymond Gerard Bennett
Willis Harold Risse
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.)
Novo Industrial Corp
Original Assignee
Novo Industrial 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 Novo Industrial Corp filed Critical Novo Industrial Corp
Priority to GB4947566A priority Critical patent/GB1147376A/en
Publication of GB1147376A publication Critical patent/GB1147376A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0436—Installations or apparatus for applying liquid or other fluent material to elongated bodies, e.g. light poles, pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B05B1/205—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor characterised by the longitudinal shape of the elongated body
    • B05B1/207—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor characterised by the longitudinal shape of the elongated body the elongated body being a closed loop

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

1,147,376. Testing for flaws. NOVO INDUSTRIAL CORP. Nov.4, 1966, No.49475/66. Heading G1S. A method and apparatus for detecting flaws in an air-permeable body 10 such as an air filter element comprises a ring spray nozzle 24 for passing air through successively exposed contiguous areas of the body 10 so that the air impinges against a receiving surface arranged inside the body, the air carrying a fluorescent agent which is carried through any defects in the body and is deposited on the receiving surface so as to indicate the existence and the location of such defects. In the embodiment described the body under test is a cylindrical air filter which is mounted on a cylindrical receiving surface 64 and covered by a shroud 20 having a number of windows or scanning slots 22 around its perimeter to expose reduced areas of the filter. The inside of the air filter is maintained at a reduced pressure to encourage the flow of the fluorescent agent through any defects in the filter. In order to expose the entire area of the filter successively the shroud is raised together with the spray nozzle by means of a piston and cylinder 39 connected to the shroud by a line 46.
GB4947566A 1966-11-04 1966-11-04 Method and apparatus for detecting defects in air-permeable bodies Expired GB1147376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4947566A GB1147376A (en) 1966-11-04 1966-11-04 Method and apparatus for detecting defects in air-permeable bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4947566A GB1147376A (en) 1966-11-04 1966-11-04 Method and apparatus for detecting defects in air-permeable bodies

Publications (1)

Publication Number Publication Date
GB1147376A true GB1147376A (en) 1969-04-02

Family

ID=10452472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4947566A Expired GB1147376A (en) 1966-11-04 1966-11-04 Method and apparatus for detecting defects in air-permeable bodies

Country Status (1)

Country Link
GB (1) GB1147376A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736790A (en) * 1971-08-26 1973-06-05 A Pontello Apparatus for non-destructively testing fuel filters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736790A (en) * 1971-08-26 1973-06-05 A Pontello Apparatus for non-destructively testing fuel filters

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