GB1325764A - Fluid velocity indicators - Google Patents

Fluid velocity indicators

Info

Publication number
GB1325764A
GB1325764A GB1477773A GB1477770A GB1325764A GB 1325764 A GB1325764 A GB 1325764A GB 1477773 A GB1477773 A GB 1477773A GB 1477770 A GB1477770 A GB 1477770A GB 1325764 A GB1325764 A GB 1325764A
Authority
GB
United Kingdom
Prior art keywords
fluid
conduit
bore
july
closed
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
GB1477773A
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.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
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 Becton Dickinson and Co filed Critical Becton Dickinson and Co
Publication of GB1325764A publication Critical patent/GB1325764A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/163—Clean air work stations, i.e. selected areas within a space which filtered air is passed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Ventilation (AREA)
  • Measuring Volume Flow (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)

Abstract

1325764 Measuring fluid flow BECTON DICKINSON & CO 8 July 1970 [8 July 1969] 14777/73 Divided out of 1325763 Heading G1R An air velocity indicator 29, particularly for indicating the velocity of air entering a cabinet type work bench (see Division F4), comprises a transparent or translucent body 47 having a vertical frustoconical bore 75 containing a movable ball shaped float 84. An inlet tube 49, having one end closed at 86 and apertures 88 positioned to face and receive a flow of fluid from fluid flowing through a conduit 48, is connected to the lower end of the vertical bore 75. Fluid leaves the upper end of the bore through an outlet tube 50 which also extends into conduit 48, is closed at one end 87 and has outlet apertures 89 facing the downstream direction of fluid flow through the conduit 48. Conveniently a calibrated scale (not shown) is associated with the body 47 to provide visual reference to the position of the movable float 84.
GB1477773A 1969-07-08 1970-07-08 Fluid velocity indicators Expired GB1325764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83996769A 1969-07-08 1969-07-08

Publications (1)

Publication Number Publication Date
GB1325764A true GB1325764A (en) 1973-08-08

Family

ID=25281111

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3322670A Expired GB1325763A (en) 1969-07-08 1970-07-08 Cabinet work benches
GB1477773A Expired GB1325764A (en) 1969-07-08 1970-07-08 Fluid velocity indicators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3322670A Expired GB1325763A (en) 1969-07-08 1970-07-08 Cabinet work benches

Country Status (4)

Country Link
CH (2) CH536986A (en)
DE (1) DE7025282U (en)
FR (1) FR2054356A5 (en)
GB (2) GB1325763A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044659B4 (en) * 2000-09-02 2009-03-19 Hein, Stefan, Dr.-Ing. Volume flow sensor for hydraulic fluids

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2328875C2 (en) * 1973-06-06 1989-11-02 CIBA-GEIGY AG, 4002 Basel Air distributor
GB2129928B (en) * 1982-10-16 1986-09-10 Yamato Scient Co Ltd A fume hood
JPS60500164A (en) * 1982-12-06 1985-02-07 リドレイ，マイクル　ジヨ−ジ Dental hazardous gas generating storage cabinet
GB2215260A (en) * 1988-03-02 1989-09-20 Vista Optics Limited Structure for creating a laminar-flow environment and a method of use
GB2217250B (en) * 1988-04-09 1991-05-15 Cambridge Isolation Tech Isolators
DE4209297C2 (en) * 1992-03-21 1995-12-21 Meissner & Wurst Treatment facility for the clean room area
GB2271074B (en) * 1992-09-24 1996-07-10 Extract Technology Ltd Glove box
GB9401821D0 (en) * 1994-01-31 1994-03-23 Mdh Ltd Isolator and method of operating it
DE4419268A1 (en) * 1994-06-01 1995-12-07 Waldner Laboreinrichtungen Fume cupboard which may be fully opened in safety
GB9411403D0 (en) * 1994-06-07 1994-07-27 Miller Peter B Glove boxes
DE19549396A1 (en) * 1995-05-10 1997-01-09 Doerfert Hans Joachim Safety workbench
DE19528780C2 (en) * 1995-08-04 2002-06-20 Bayer Ag Fume cupboard with monitoring device
GB2314409A (en) * 1996-06-19 1997-12-24 Powder Systems Ltd Fume cupboard
GB9622929D0 (en) * 1996-11-02 1997-01-08 Whiteley & Sons Ltd S Fume extraction system
DE10157950C2 (en) * 2001-11-20 2003-12-24 Berner Internat Gmbh Safety Cabinet
DE102004032454A1 (en) 2004-06-24 2006-01-12 Kendro Laboratory Products Gmbh Safety Cabinet
DE102011114993A1 (en) * 2011-10-06 2013-04-11 Thermo Electron Led Gmbh Fume hood and especially safety workbench with LED lighting
JP5890066B2 (en) * 2013-03-29 2016-03-22 パナソニックヘルスケアホールディングス株式会社 Isolators, clean benches and cabinets
DE102017112346A1 (en) * 2017-06-06 2018-12-06 Weiss Pharmatechnik GmbH Device and method for venting a clean room working area with clean air and workplace arrangement with the device
GB202000744D0 (en) * 2020-01-17 2020-03-04 Whitley Don Scient Ltd Workstation
CN112114167B (en) * 2020-10-14 2022-05-10 中国计量科学研究院 Airflow flow velocity detection and calibration device and system for biological safety cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044659B4 (en) * 2000-09-02 2009-03-19 Hein, Stefan, Dr.-Ing. Volume flow sensor for hydraulic fluids

Also Published As

Publication number Publication date
DE2033323B2 (en) 1975-02-06
DE2033323A1 (en) 1971-01-28
CH536986A (en) 1973-05-15
DE7025282U (en) 1971-01-21
GB1325763A (en) 1973-08-08
CH555050A (en) 1974-10-15
FR2054356A5 (en) 1971-04-16

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Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee