GB8811837D0 - Clean enclosures - Google Patents

Clean enclosures

Info

Publication number
GB8811837D0
GB8811837D0 GB888811837A GB8811837A GB8811837D0 GB 8811837 D0 GB8811837 D0 GB 8811837D0 GB 888811837 A GB888811837 A GB 888811837A GB 8811837 A GB8811837 A GB 8811837A GB 8811837 D0 GB8811837 D0 GB 8811837D0
Authority
GB
United Kingdom
Prior art keywords
enclosures
clean
clean enclosures
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.)
Withdrawn
Application number
GB888811837A
Other versions
GB2222705A (en
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.)
Eady J G
Wheeler T A W
Original Assignee
Eady J G
Wheeler T A W
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 Eady J G, Wheeler T A W filed Critical Eady J G
Priority to GB8811837A priority Critical patent/GB2222705A/en
Publication of GB8811837D0 publication Critical patent/GB8811837D0/en
Publication of GB2222705A publication Critical patent/GB2222705A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • G01F1/69—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element of resistive type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
GB8811837A 1988-05-19 1988-05-19 Reduced pressure enclosure Withdrawn GB2222705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8811837A GB2222705A (en) 1988-05-19 1988-05-19 Reduced pressure enclosure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8811837A GB2222705A (en) 1988-05-19 1988-05-19 Reduced pressure enclosure

Publications (2)

Publication Number Publication Date
GB8811837D0 true GB8811837D0 (en) 1988-06-22
GB2222705A GB2222705A (en) 1990-03-14

Family

ID=10637151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8811837A Withdrawn GB2222705A (en) 1988-05-19 1988-05-19 Reduced pressure enclosure

Country Status (1)

Country Link
GB (1) GB2222705A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4091373T (en) * 1989-07-31 1992-12-10
SE468118B (en) * 1990-03-08 1992-11-09 Flaekt Ab PROCEDURE AND DEVICE TO ACHIEVE SIGNIFICANT CONSTANT AIR FLOW THROUGH THE DOOR OF A TRANSFER
US5302071A (en) * 1991-08-28 1994-04-12 Svedala Industries, Inc. Dust containment system for bottom dumping railroad cars
GB9127337D0 (en) * 1991-12-24 1992-02-19 Toleman Bernard J System for measuring fluid flow
AU2820997A (en) * 1996-05-03 1997-11-26 Phoenix Controls Corporation Inverted venturi flow element for measuring fluid velocity in a conduit
DK174646B1 (en) * 2000-04-17 2003-08-04 Heto Holten As Workstation for laminar air flow.
DE102017210153A1 (en) 2017-06-19 2018-12-20 Ab Elektronik Sachsen Gmbh Device for level detection of media in containers
DE102017210152A1 (en) 2017-06-19 2018-12-20 Ab Elektronik Sachsen Gmbh Device for detecting media
CN109764922A (en) * 2018-12-27 2019-05-17 苏州化工仪表有限公司 A kind of thermal type gas quality flow meter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1161140A (en) * 1979-11-09 1984-01-24 Graeme J. Lowe Control of the atmosphere in an enclosure
US4528898A (en) * 1984-03-05 1985-07-16 Imec Corporation Fume hood controller

Also Published As

Publication number Publication date
GB2222705A (en) 1990-03-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)