US3380369A - System for ventilating clean rooms - Google Patents

System for ventilating clean rooms Download PDF

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Publication number
US3380369A
US3380369A US527686A US52768666A US3380369A US 3380369 A US3380369 A US 3380369A US 527686 A US527686 A US 527686A US 52768666 A US52768666 A US 52768666A US 3380369 A US3380369 A US 3380369A
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US
United States
Prior art keywords
air
room
ceiling
clean rooms
curtain
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 - Lifetime
Application number
US527686A
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English (en)
Inventor
Allander Claes Gustaf
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3380369A publication Critical patent/US3380369A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/108—Means providing sterile air at a surgical operation table or area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/29—Air curtains

Definitions

  • a room requiring -a high purity of the air such as an operating room in a hospital is provided with a bounded space, for instance around the operating table, separated from the remainder of the room by an air curtain. Ventilated air of high purity is supplied to the bounded space through a perforated ceiling of said space, and the boundary air is supplied through a slot line encompassing said perforated ceiling. The air is exhausted through outlets near the floor of the room.
  • the object of this invention is to present a technical solution which renders possible the provision and maintenance of a pure zone in a room.
  • the invention is characterized by a curtain of iiowing air provided between an air slot and exhausing means and separating said zone from the remaining part of the room, and by means for supplying air within said separated zone.
  • FIG. 1 is a vertical sectional view of a room -having a pure zone in accordance with the invention
  • FIG. 2 is a top plan View of the room
  • FIG. 3 is a sectional view of a modified detail.
  • a zone of pure air is to be created above and around an operating-table 5 in a room having a ceiling 1, lioor 2 and walls 3 and 4.
  • a curtain 6 of air flow from slots 7 to exhausting means said slots and said exhausting means being disposed such that the air curtain separates a part 8 of the room from the remaining part of the room.
  • the slots 7 are provided in the ceiling and form outlets from a rectangular duct 9 located above the ceiling.
  • the duct 9 may be annular, polygonal or have any suitable shape encompassing a region of the ceiling.
  • the duct 9 receives air through a conduit 10.
  • the air exhausting means is disposed at the lower part of the room and is represented by a plurality of outlets 16 in the walls of the room near the lioor.
  • a pure zone can be maintained in the part 8 of the room without the necessity of air locks at the entrance or exit of the room. It is even possible to leave the doors of the room open.
  • the invention is not limited t0 the embodiment illustrated in the drawing.
  • the air slots 7 may be defined by adjustable guide members 17 (FIG. 3) which permit control of the direction of flow of the air from the slot.
  • the guide members are adjustable by means of control members 18 by means of which the guide members 17 can be turned about pivots 19.
  • the air slots may be provided in the lower part of the room and exhausting means may be provided in the ceiling.
  • the embodiment illustrated is more advantageous with respect to the introduction of additional air from the apertures 11.
  • a ventilated room having a ceiling and a iioor and ⁇ side walls extending between the ceiling and the lloor and encompassing the room, air supply slot means extending through and encompassing a region of said ceiling horizontally spaced from all said side walls, means for supplying air under positive pressure through said slot means and into the room, and exhaust means for air outlet adjacent said floor and encompassing at least a portion of the room thereby to induce the flow of a current of air from said slot means to said exhaust means with the curtain ot' air forming a continuous curtain enclosing on all lateral ⁇ sides a portion of space in the room and separating that space from the remainder of the room on all lateralsides.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ventilation (AREA)
  • Air-Flow Control Members (AREA)
  • Duct Arrangements (AREA)
US527686A 1965-02-23 1966-02-15 System for ventilating clean rooms Expired - Lifetime US3380369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE230865 1965-02-23

Publications (1)

Publication Number Publication Date
US3380369A true US3380369A (en) 1968-04-30

Family

ID=20259719

Family Applications (1)

Application Number Title Priority Date Filing Date
US527686A Expired - Lifetime US3380369A (en) 1965-02-23 1966-02-15 System for ventilating clean rooms

Country Status (7)

Country Link
US (1) US3380369A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE676849A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1604114B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK112615B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FI (1) FI43003B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1127793A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL139594B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462920A (en) * 1966-12-16 1969-08-26 Bell S Medical Products Ltd Gaseously formed curtains
US3511162A (en) * 1969-02-20 1970-05-12 Johnson & Johnson Apparatus and method for isolating a patient zone
US3515053A (en) * 1968-06-14 1970-06-02 Import Inspection Services Meat inspection system and method
US3602212A (en) * 1968-05-02 1971-08-31 Howorth & Co Ltd James Surgical operating theatre with sterile air admitting means
US3625133A (en) * 1969-01-13 1971-12-07 Sanko Air Plant Air-curtaining apparatus for forming an internal-isolated zone
US3626837A (en) * 1970-02-13 1971-12-14 Chs Ind Inc Dual plenum for ventilating ceilings in clean rooms
US3680557A (en) * 1970-05-06 1972-08-01 Becton Dickinson Co Controlled atmosphere incubator system with oxygen probe
US3726203A (en) * 1971-06-23 1973-04-10 Svenska Flaektfabriken Ab Device for maintenance of a dustfree, bacteria-free zone in a room
US3776217A (en) * 1969-12-18 1973-12-04 Pielkenrood Vinitex Bv Nursing box for babies or similar purposes
US3800686A (en) * 1972-03-28 1974-04-02 Tokyo Gas Co Ltd Air supply and exhaust duct system in a building
US3803995A (en) * 1970-09-04 1974-04-16 C Allander Arrangement for maintaining a ventilated zone within a part of a room partitioned by an air curtain
US3952640A (en) * 1973-03-01 1976-04-27 Vent-Cair, Inc. Apparatus and method for extracting grease and smoke, and method of installing the same
US3998142A (en) * 1975-07-03 1976-12-21 Sterilaire Medical, Inc. Air circulating system for ultra clean areas
US4009647A (en) * 1974-04-26 1977-03-01 Howorth Air Engineering Limited Clean air zone for surgical purposes
US4048912A (en) * 1974-09-19 1977-09-20 Ab Svenska Flaktfabriken Color spray booth and method of ventilating the same
US4063495A (en) * 1975-01-25 1977-12-20 Zinon Duvlis Contamination prevention for operating areas
US4094232A (en) * 1975-04-16 1978-06-13 Howorth Air Engineering Limited Clean air zone
US4133255A (en) * 1977-03-21 1979-01-09 Guice John J Paint spray booth and method of painting an article therein
US4137831A (en) * 1976-05-08 1979-02-06 Howorth Air Engineering Limited Clean air zone
US4140105A (en) * 1973-12-04 1979-02-20 Zinon Duvlis Gas curtain for shielding person on an operating table
US4606259A (en) * 1984-08-07 1986-08-19 Flakt Aktiebolag Air curtain
US4668484A (en) * 1984-02-13 1987-05-26 Elliott David J Transport containers for semiconductor wafers
DE3639708A1 (de) * 1986-11-20 1988-06-01 Metallbau Buedelsdorf Vorrichtung zur erzeugung eines reinraumes im bereich eines reinfeldes
US4927438A (en) * 1987-12-01 1990-05-22 Varian Associates, Inc. Horizontal laminar air flow work station
US5259812A (en) * 1992-09-23 1993-11-09 Kleinsek Don A Clean room and clean room containment center
US5457270A (en) * 1993-10-04 1995-10-10 Hildebrand; Philip B. Chemical control system for confining volatile liquids
US5792259A (en) * 1995-11-27 1998-08-11 Dainippon Screen Mfg. Co., Ltd. Substrate processing apparatus and air supply method in substrate processing apparatus
US6110244A (en) * 1994-10-22 2000-08-29 Howorth Airtech Limited Clean air system
US20040242955A1 (en) * 2003-03-26 2004-12-02 Jochim Koch Hoodless incubator
EP1495744A1 (de) * 2003-07-09 2005-01-12 van den Wildenberg, Pierre Einrichtung zur Versorgung eines Operationsraumes mit kontaminationsfreier Luft, Energie und sonstigen Versorgungsmedien
US20050250436A1 (en) * 2002-09-04 2005-11-10 Agne Nilsson System, device and method for ventilation
US20090156112A1 (en) * 2006-03-22 2009-06-18 Koken Ltd. Toxic gas exposure preventing system for anatomic practice room
US20120115409A1 (en) * 2009-04-24 2012-05-10 Ltb S.A. Smoking room with the air renewed by a laminar flow
JP2013085672A (ja) * 2011-10-18 2013-05-13 Shimizu Corp 空調システム
US20150072609A1 (en) * 2012-03-29 2015-03-12 Howorth Air Technology Limited Clean air apparatus
US20160334120A1 (en) * 2015-05-12 2016-11-17 Halton Oy Controlled dilution flow in critical environments
WO2020070285A1 (en) * 2018-10-05 2020-04-09 Eir Clinical Ab Ventilation system for operating room
US20220333797A1 (en) * 2021-04-20 2022-10-20 FLOWGenuity Inc. System for creating a microenvironment within an ambient environment

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222453B2 (de) * 1972-05-08 1981-09-24 Ltg Lufttechnische Gmbh, 7000 Stuttgart Schlitzluftauslaß zum Einblassen von Zuluft in einen Gebäuderaum
DE2615904C3 (de) * 1976-04-10 1985-06-05 Weiss Technik GmbH Umwelt-Klima-Messtechnik, 6301 Reiskirchen Zuluftdecke zum Klimatisieren von Operationssälen u.dgl.
DE2911462C2 (de) * 1979-03-23 1981-12-03 Hansa Ventilatoren u. Maschinenbau Neumann GmbH & Co KG, 2915 Saterland Verfahren und Vorrichtung zur Reinhaltung der Luft in einer Frischwarenabteilung
LU81292A1 (fr) 1979-05-18 1980-12-16 Eni Elect Nijverheidsinstall Procede et dispositif de sterilisation d'un gaz et de protection d'une zone d'un espace contre la penetration d'agents contaminants
DE3050685C2 (de) * 1980-02-05 1985-10-17 TTL Tür + Torschleier lufttechnische Geräte GmbH, 7065 Winterbach Einrichtung zum Erzeugen eines Torluftschleiers
FR2515319B1 (fr) * 1981-10-26 1986-12-26 Air Ind Paroi repartitrice d'air de ventilation pour enceintes de travail
DE3242918A1 (de) * 1982-11-20 1984-05-30 Schulz u. Berger Blech- und Feineisenkonstruktionen GmbH, 6831 Reilingen Vorrichtung zur belueftung von arbeitsplaetzen
NO934439D0 (no) * 1993-12-06 1993-12-06 Aet Arbeidsmiljoe Og Energitek Anordning ved takmontert ventilasjonsanlegg
NL2016881B1 (nl) * 2016-06-02 2018-01-12 Medexs Holding B V Werkwijze en inrichting voor luchtstroom instelling
CN114502891A (zh) * 2020-08-19 2022-05-13 Itt制造企业有限责任公司 空气安全系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904052A (en) * 1959-05-26 1962-08-22 Carrier Engineering Co Ltd Improvements relating to methods and apparatus for maintaining an atmosphere having predetermined characteristics in an open-fronted chamber
US3150584A (en) * 1961-09-04 1964-09-29 Svenska Flaektfabriken Ab Air-conditioning arrangement for operating rooms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE545632C (de) * 1928-03-07 1932-03-03 Karlrichard Mueller Dipl Ing Verfahren zum Abtrennen von Raeumen
DE1095497B (de) * 1954-05-12 1960-12-22 Schilde Maschb Ag Lufttuer fuer Trockner und Industrieoefen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904052A (en) * 1959-05-26 1962-08-22 Carrier Engineering Co Ltd Improvements relating to methods and apparatus for maintaining an atmosphere having predetermined characteristics in an open-fronted chamber
US3150584A (en) * 1961-09-04 1964-09-29 Svenska Flaektfabriken Ab Air-conditioning arrangement for operating rooms

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462920A (en) * 1966-12-16 1969-08-26 Bell S Medical Products Ltd Gaseously formed curtains
US3602212A (en) * 1968-05-02 1971-08-31 Howorth & Co Ltd James Surgical operating theatre with sterile air admitting means
US3515053A (en) * 1968-06-14 1970-06-02 Import Inspection Services Meat inspection system and method
US3625133A (en) * 1969-01-13 1971-12-07 Sanko Air Plant Air-curtaining apparatus for forming an internal-isolated zone
US3511162A (en) * 1969-02-20 1970-05-12 Johnson & Johnson Apparatus and method for isolating a patient zone
FR2031559A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-02-20 1970-11-20 Johnson & Johnson
US3776217A (en) * 1969-12-18 1973-12-04 Pielkenrood Vinitex Bv Nursing box for babies or similar purposes
US3626837A (en) * 1970-02-13 1971-12-14 Chs Ind Inc Dual plenum for ventilating ceilings in clean rooms
US3680557A (en) * 1970-05-06 1972-08-01 Becton Dickinson Co Controlled atmosphere incubator system with oxygen probe
US3803995A (en) * 1970-09-04 1974-04-16 C Allander Arrangement for maintaining a ventilated zone within a part of a room partitioned by an air curtain
US3726203A (en) * 1971-06-23 1973-04-10 Svenska Flaektfabriken Ab Device for maintenance of a dustfree, bacteria-free zone in a room
US3800686A (en) * 1972-03-28 1974-04-02 Tokyo Gas Co Ltd Air supply and exhaust duct system in a building
US3952640A (en) * 1973-03-01 1976-04-27 Vent-Cair, Inc. Apparatus and method for extracting grease and smoke, and method of installing the same
US4140105A (en) * 1973-12-04 1979-02-20 Zinon Duvlis Gas curtain for shielding person on an operating table
US4009647A (en) * 1974-04-26 1977-03-01 Howorth Air Engineering Limited Clean air zone for surgical purposes
US4048912A (en) * 1974-09-19 1977-09-20 Ab Svenska Flaktfabriken Color spray booth and method of ventilating the same
US4063495A (en) * 1975-01-25 1977-12-20 Zinon Duvlis Contamination prevention for operating areas
US4094232A (en) * 1975-04-16 1978-06-13 Howorth Air Engineering Limited Clean air zone
US3998142A (en) * 1975-07-03 1976-12-21 Sterilaire Medical, Inc. Air circulating system for ultra clean areas
US4137831A (en) * 1976-05-08 1979-02-06 Howorth Air Engineering Limited Clean air zone
US4133255A (en) * 1977-03-21 1979-01-09 Guice John J Paint spray booth and method of painting an article therein
US4668484A (en) * 1984-02-13 1987-05-26 Elliott David J Transport containers for semiconductor wafers
US4606259A (en) * 1984-08-07 1986-08-19 Flakt Aktiebolag Air curtain
DE3639708A1 (de) * 1986-11-20 1988-06-01 Metallbau Buedelsdorf Vorrichtung zur erzeugung eines reinraumes im bereich eines reinfeldes
US4927438A (en) * 1987-12-01 1990-05-22 Varian Associates, Inc. Horizontal laminar air flow work station
US5259812A (en) * 1992-09-23 1993-11-09 Kleinsek Don A Clean room and clean room containment center
US5457270A (en) * 1993-10-04 1995-10-10 Hildebrand; Philip B. Chemical control system for confining volatile liquids
US6110244A (en) * 1994-10-22 2000-08-29 Howorth Airtech Limited Clean air system
US5792259A (en) * 1995-11-27 1998-08-11 Dainippon Screen Mfg. Co., Ltd. Substrate processing apparatus and air supply method in substrate processing apparatus
US20050250436A1 (en) * 2002-09-04 2005-11-10 Agne Nilsson System, device and method for ventilation
US7361082B2 (en) * 2002-09-04 2008-04-22 Johnson Medical Development Pte. Ltd. System, device and method for ventilating a room
EP1539080B1 (en) * 2002-09-04 2012-03-28 Johnson Medical Development Pte Ltd System, device and method for ventilation
US6926664B2 (en) * 2003-03-26 2005-08-09 Dräger Medical AG & Co. KGaA Hoodless incubator
US20040242955A1 (en) * 2003-03-26 2004-12-02 Jochim Koch Hoodless incubator
EP1495744A1 (de) * 2003-07-09 2005-01-12 van den Wildenberg, Pierre Einrichtung zur Versorgung eines Operationsraumes mit kontaminationsfreier Luft, Energie und sonstigen Versorgungsmedien
US20090156112A1 (en) * 2006-03-22 2009-06-18 Koken Ltd. Toxic gas exposure preventing system for anatomic practice room
US20120115409A1 (en) * 2009-04-24 2012-05-10 Ltb S.A. Smoking room with the air renewed by a laminar flow
JP2013085672A (ja) * 2011-10-18 2013-05-13 Shimizu Corp 空調システム
US20150072609A1 (en) * 2012-03-29 2015-03-12 Howorth Air Technology Limited Clean air apparatus
US10962246B2 (en) * 2012-03-29 2021-03-30 Howorth Air Technology Limited Clean air apparatus and method for discharging clean air towards a target clean area in the form of an air curtain
US20160334120A1 (en) * 2015-05-12 2016-11-17 Halton Oy Controlled dilution flow in critical environments
US10852015B2 (en) * 2015-05-12 2020-12-01 Halton Oy Controlled dilution flow in critical environments
WO2020070285A1 (en) * 2018-10-05 2020-04-09 Eir Clinical Ab Ventilation system for operating room
US20220333797A1 (en) * 2021-04-20 2022-10-20 FLOWGenuity Inc. System for creating a microenvironment within an ambient environment

Also Published As

Publication number Publication date
BE676849A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-07-18
GB1127793A (en) 1968-09-18
DE1604114B1 (de) 1971-12-23
FI43003B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-09-02
NL139594B (nl) 1973-08-15
DK112615B (da) 1968-12-30
NL6602354A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-08-24

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