US3487766A - Clean room having substantially vertical air flow therein - Google Patents

Clean room having substantially vertical air flow therein Download PDF

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Publication number
US3487766A
US3487766A US697362A US3487766DA US3487766A US 3487766 A US3487766 A US 3487766A US 697362 A US697362 A US 697362A US 3487766D A US3487766D A US 3487766DA US 3487766 A US3487766 A US 3487766A
Authority
US
United States
Prior art keywords
air
chambers
floor
openings
room
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
US697362A
Other languages
English (en)
Inventor
Walter Bruce Wood
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.)
American Air Filter Co Inc
Original Assignee
American Air Filter Co Inc
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
US case filed in Oregon District Court litigation Critical https://portal.unifiedpatents.com/litigation/Oregon%20District%20Court/case/3%3A12-cv-00775 Source: District Court Jurisdiction: Oregon District Court "Unified Patents Litigation Data" by Unified Patents is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by American Air Filter Co Inc filed Critical American Air Filter Co Inc
Application granted granted Critical
Publication of US3487766A publication Critical patent/US3487766A/en
Assigned to WOODS KATHLEEN D., AS TRUSTEE, CONNECTICUT NATIONAL BANK THE, A NATIONAL BANKING ASSOCIATION AS TRUSTEE reassignment WOODS KATHLEEN D., AS TRUSTEE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALLIS-CHALMERS CORPORATION A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed

Definitions

  • FIGURE 2 is an isometric partially broken away view of a lower corner of the clean room and the vertical chambers beneath the floor.
  • the air need not enter solely through the ceiling, but may enter as well through the ducts placed in the wall near the ceiling.
  • the entrance ducts should be placed in the ceiling and should be placed as uniformly as possible throughout the entire ceiling.
  • a porous floor comprising a plurality of longitudinally extending columnar vertical chambers, said chambers being of substantially uniform cross section along their longitudinal axis and in parallel relationship, each being sealed with respect to adjacent chambers and having an upper portion with at least one opening therein in direct communication with said enclosure and a lower portion with at least one opening therein opposed to the opening in said upper portion and communicating directly with an air collection duct, the respective areas of the openings in said upper portions and said lower portions being each less than the cross-sectional area of said chamber, said longitudinally extending columnar vertical chambers acting to direct the flow of air in said enclosure from said porous ceiling downwardly in a substantially nondeviating vertical direction to said chambers.
  • said porous floor comprises an upper portion which is a perforated metal plate, a spaced lower portion which is a perforated metal plate and a series of vertical chambers therebetween of corrugated material having an upper edge sealed to said upper perforated metal plate and a lower edge sealed to said lower perforated metal plate to prevent the chambers from communicating with one another and to provide physical support beneath said upper perforated plate to mitigate buckling of said upper plate beneath a load.
  • porous floor comprises perforated steel plates having corrugated kraft paperboard therebetween.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
US697362A 1968-01-12 1968-01-12 Clean room having substantially vertical air flow therein Expired - Lifetime US3487766A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69736268A 1968-01-12 1968-01-12

Publications (1)

Publication Number Publication Date
US3487766A true US3487766A (en) 1970-01-06

Family

ID=24800836

Family Applications (1)

Application Number Title Priority Date Filing Date
US697362A Expired - Lifetime US3487766A (en) 1968-01-12 1968-01-12 Clean room having substantially vertical air flow therein

Country Status (5)

Country Link
US (1) US3487766A (de)
JP (1) JPS4911803B1 (de)
DE (1) DE1901460A1 (de)
FR (1) FR2000208A1 (de)
GB (1) GB1259679A (de)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657991A (en) * 1970-05-18 1972-04-25 Zero Manufacturing Co Floor for blast room with uniform down-draft ventilation
US3942964A (en) * 1974-09-26 1976-03-09 American Air Filter Company, Inc. Clean room perforated floor panel
US4319520A (en) * 1980-01-07 1982-03-16 Westinghouse Electric Corp. Air flow floor panel
US4632020A (en) * 1983-06-21 1986-12-30 Ingenieursbureau Macoma B.V. Air conditioning systems for a room
US4660464A (en) * 1984-09-03 1987-04-28 Sanki Kogyo Kabushiki Kaisha Clean air supply means in a clean tunnel
US4667580A (en) * 1984-07-19 1987-05-26 Wetzel Lawrence E Clean room module
US4690100A (en) * 1985-10-22 1987-09-01 Thoren Caging Systems, Inc. Ventilated animal housing and service system with cage filter covers
US4888927A (en) * 1986-06-19 1989-12-26 Daiken Trade & Industry Co., Ltd. Floating floor
WO1991004448A1 (en) * 1989-09-25 1991-04-04 Orr, Graeme The air conditioner
US5083558A (en) * 1990-11-06 1992-01-28 Thomas William R Mobile surgical compartment with micro filtered laminar air flow
US5144781A (en) * 1987-11-12 1992-09-08 Heinrich Nickel Gmbh Double floor for removing air from rooms
US5192348A (en) * 1991-08-21 1993-03-09 Brod & Mcclung-Pace Co. Directional air diffuser panel for clean room ventilation system
US5445557A (en) * 1993-09-27 1995-08-29 Stripping Technologies, Inc. Abrasive blasting floor recovery system which is resistant to clogging
US5454756A (en) * 1991-08-21 1995-10-03 Pace Company Clean room ventilation system
US5613759A (en) * 1991-06-24 1997-03-25 Brod & Mcclung-Pace Co. Light and filter support structure
US5944602A (en) * 1997-09-09 1999-08-31 Tumi Manufacturing, Inc. Portable cleanroom cabinet assembly
US20030046889A1 (en) * 2001-09-11 2003-03-13 Lynch Diane Irene Moire ceiling panels
CN102460027A (zh) * 2009-04-24 2012-05-16 Ltb股份有限公司 通过分层流动来更新空气的吸烟室
WO2013082647A1 (en) * 2011-12-05 2013-06-13 Kaip Pty Limited An air diffuser and an air circulation system
US20220049865A1 (en) * 2020-08-12 2022-02-17 Robert Edward Breidenthal, Jr. Ventilation airflow in confined spaces to inhibit the transmission of disease

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6759302B2 (ja) * 2018-11-07 2020-09-23 三菱重工業株式会社 発熱体の冷却システム
IT201900011700A1 (it) * 2019-07-12 2021-01-12 Tecma S R L Distributore lineare aerodinamico di aeriformi

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1162473A (fr) * 1955-12-22 1958-09-15 British Oxygen Co Ltd Récipient pour gaz liquéfiés
US2912918A (en) * 1957-06-25 1959-11-17 William H Mead Blast room with uniform down-draft ventilation
US3148676A (en) * 1962-12-10 1964-09-15 Crimsco Inc Unit for maintaining food at a constant temperature
US3158457A (en) * 1962-05-14 1964-11-24 Willis J Whitfield Ultra-clean room
US3314353A (en) * 1965-10-18 1967-04-18 Weber Showcase & Fixture Co Di Ventilated floor modular system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1162473A (fr) * 1955-12-22 1958-09-15 British Oxygen Co Ltd Récipient pour gaz liquéfiés
US2912918A (en) * 1957-06-25 1959-11-17 William H Mead Blast room with uniform down-draft ventilation
US3158457A (en) * 1962-05-14 1964-11-24 Willis J Whitfield Ultra-clean room
US3148676A (en) * 1962-12-10 1964-09-15 Crimsco Inc Unit for maintaining food at a constant temperature
US3314353A (en) * 1965-10-18 1967-04-18 Weber Showcase & Fixture Co Di Ventilated floor modular system

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657991A (en) * 1970-05-18 1972-04-25 Zero Manufacturing Co Floor for blast room with uniform down-draft ventilation
US3942964A (en) * 1974-09-26 1976-03-09 American Air Filter Company, Inc. Clean room perforated floor panel
US4319520A (en) * 1980-01-07 1982-03-16 Westinghouse Electric Corp. Air flow floor panel
US4632020A (en) * 1983-06-21 1986-12-30 Ingenieursbureau Macoma B.V. Air conditioning systems for a room
US4667580A (en) * 1984-07-19 1987-05-26 Wetzel Lawrence E Clean room module
US4660464A (en) * 1984-09-03 1987-04-28 Sanki Kogyo Kabushiki Kaisha Clean air supply means in a clean tunnel
US4690100A (en) * 1985-10-22 1987-09-01 Thoren Caging Systems, Inc. Ventilated animal housing and service system with cage filter covers
US4888927A (en) * 1986-06-19 1989-12-26 Daiken Trade & Industry Co., Ltd. Floating floor
US5144781A (en) * 1987-11-12 1992-09-08 Heinrich Nickel Gmbh Double floor for removing air from rooms
WO1991004448A1 (en) * 1989-09-25 1991-04-04 Orr, Graeme The air conditioner
US5083558A (en) * 1990-11-06 1992-01-28 Thomas William R Mobile surgical compartment with micro filtered laminar air flow
US5613759A (en) * 1991-06-24 1997-03-25 Brod & Mcclung-Pace Co. Light and filter support structure
US5192348A (en) * 1991-08-21 1993-03-09 Brod & Mcclung-Pace Co. Directional air diffuser panel for clean room ventilation system
US5454756A (en) * 1991-08-21 1995-10-03 Pace Company Clean room ventilation system
US5445557A (en) * 1993-09-27 1995-08-29 Stripping Technologies, Inc. Abrasive blasting floor recovery system which is resistant to clogging
US5944602A (en) * 1997-09-09 1999-08-31 Tumi Manufacturing, Inc. Portable cleanroom cabinet assembly
US20030046889A1 (en) * 2001-09-11 2003-03-13 Lynch Diane Irene Moire ceiling panels
US7658046B2 (en) * 2001-09-11 2010-02-09 Usg Interiors, Inc. Moiré ceiling panels
CN102460027A (zh) * 2009-04-24 2012-05-16 Ltb股份有限公司 通过分层流动来更新空气的吸烟室
WO2013082647A1 (en) * 2011-12-05 2013-06-13 Kaip Pty Limited An air diffuser and an air circulation system
CN103975203A (zh) * 2011-12-05 2014-08-06 开谱有限公司 空气扩散器和空气循环系统
US20220049865A1 (en) * 2020-08-12 2022-02-17 Robert Edward Breidenthal, Jr. Ventilation airflow in confined spaces to inhibit the transmission of disease

Also Published As

Publication number Publication date
JPS4911803B1 (de) 1974-03-19
GB1259679A (en) 1972-01-12
FR2000208A1 (de) 1969-08-29
DE1901460A1 (de) 1969-08-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CONNECTICUT NATIONAL BANK THE, A NATIONAL BANKING

Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001

Effective date: 19830329

Owner name: WOODS KATHLEEN D., AS TRUSTEE

Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001

Effective date: 19830329