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USD529606S1 - Air duct - Google Patents

Air duct Download PDF

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Publication number
USD529606S1
USD529606S1 US29/202,969 US20296904F USD529606S US D529606 S1 USD529606 S1 US D529606S1 US 20296904 F US20296904 F US 20296904F US D529606 S USD529606 S US D529606S
Authority
US
United States
Prior art keywords
air duct
view
ornamental design
duct
design
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
US29/202,969
Inventor
Paul Hind
Desmond T. Curran
Peter D. Lee
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties 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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to US29/202,969 priority Critical patent/USD529606S1/en
Assigned to 3M INNOVATIVE PROPERTIES COMPANY reassignment 3M INNOVATIVE PROPERTIES COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEE, PETER D., CURRAN, DESMOND T., HIND, PAUL
Priority to AU200414341F priority patent/AU300701S/en
Priority to CA108325F priority patent/CA108325S/en
Application granted granted Critical
Publication of USD529606S1 publication Critical patent/USD529606S1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a perspective view, showing the new design for an air duct;
FIG. 2 is a left side view thereof, the right side view being a mirror image thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
The broken line showing forms no part of the claimed design, and the shading is provided to illustrate contour only and is not an indication of texture, etc.

Claims (1)

    CLAIM
  1. The ornamental design for an air duct, as shown and described.
US29/202,969 2004-04-07 2004-04-07 Air duct Expired - Lifetime USD529606S1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US29/202,969 USD529606S1 (en) 2004-04-07 2004-04-07 Air duct
AU200414341F AU300701S (en) 2004-04-07 2004-09-09 Air duct
CA108325F CA108325S (en) 2004-04-07 2004-09-10 Air duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29/202,969 USD529606S1 (en) 2004-04-07 2004-04-07 Air duct

Publications (1)

Publication Number Publication Date
USD529606S1 true USD529606S1 (en) 2006-10-03

Family

ID=37037820

Family Applications (1)

Application Number Title Priority Date Filing Date
US29/202,969 Expired - Lifetime USD529606S1 (en) 2004-04-07 2004-04-07 Air duct

Country Status (3)

Country Link
US (1) USD529606S1 (en)
AU (1) AU300701S (en)
CA (1) CA108325S (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD569501S1 (en) * 2007-03-23 2008-05-20 Hakan Berg Attachment for scavenging escape gas from a nasal mask
USD881380S1 (en) * 2017-10-16 2020-04-14 Gentex Corporation Respirator
USD1057296S1 (en) 2022-04-01 2025-01-07 3M Innovative Properties Company Air supply attachment for a helmet

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822698A (en) 1973-01-22 1974-07-09 R Guy Powered air-purifying respirator helmet
US3826255A (en) 1972-06-22 1974-07-30 Hudson Oxygen Therapy Sales Co Intermittent positive pressure breathing manifold
US4136688A (en) * 1976-03-31 1979-01-30 Racal-Amplivox Communications Ltd. Protective devices
US4280491A (en) 1980-03-07 1981-07-28 Minnesota Mining And Manufacturing Company Powered air respirator
US4462399A (en) 1981-10-02 1984-07-31 Minnesota Mining And Manufacturing Company Powered air respirator and cartridge
US5054479A (en) * 1988-04-19 1991-10-08 Pulsafe Safety Products Limited Safety visor having a rotatably mounted shield and filter
USD350585S (en) * 1993-11-18 1994-09-13 Aqua-Leisure Industries, Inc. Snorkel
US5577495A (en) 1992-07-31 1996-11-26 Mine Safety Appliances Company Helmet respirator apparatus
US5878742A (en) 1997-09-11 1999-03-09 Figueredo; Joseph P. Airvisor delivery system
US6014971A (en) 1997-08-15 2000-01-18 3M Innovative Properties Company Protective system for face and respiratory protection
US6810532B2 (en) * 2003-03-31 2004-11-02 Anthony Wang Lee Safety helmet with an air duct
US6925655B1 (en) * 2002-12-26 2005-08-09 Polaris Industries Inc. Protective helmet with selectively covered aperture
US6990691B2 (en) * 2003-07-18 2006-01-31 Depuy Products, Inc. Head gear apparatus

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826255A (en) 1972-06-22 1974-07-30 Hudson Oxygen Therapy Sales Co Intermittent positive pressure breathing manifold
US3822698A (en) 1973-01-22 1974-07-09 R Guy Powered air-purifying respirator helmet
US4136688A (en) * 1976-03-31 1979-01-30 Racal-Amplivox Communications Ltd. Protective devices
US4280491A (en) 1980-03-07 1981-07-28 Minnesota Mining And Manufacturing Company Powered air respirator
US4462399A (en) 1981-10-02 1984-07-31 Minnesota Mining And Manufacturing Company Powered air respirator and cartridge
US5054479A (en) * 1988-04-19 1991-10-08 Pulsafe Safety Products Limited Safety visor having a rotatably mounted shield and filter
US5577495A (en) 1992-07-31 1996-11-26 Mine Safety Appliances Company Helmet respirator apparatus
USD350585S (en) * 1993-11-18 1994-09-13 Aqua-Leisure Industries, Inc. Snorkel
US6014971A (en) 1997-08-15 2000-01-18 3M Innovative Properties Company Protective system for face and respiratory protection
US6250299B1 (en) 1997-08-15 2001-06-26 3M Innovative Properties Company Protective system for face and respiratory protection
US6279572B1 (en) 1997-08-15 2001-08-28 3M Innovative Properties Company Protective system for face and respiratory protection
US5878742A (en) 1997-09-11 1999-03-09 Figueredo; Joseph P. Airvisor delivery system
US6925655B1 (en) * 2002-12-26 2005-08-09 Polaris Industries Inc. Protective helmet with selectively covered aperture
US6810532B2 (en) * 2003-03-31 2004-11-02 Anthony Wang Lee Safety helmet with an air duct
US6990691B2 (en) * 2003-07-18 2006-01-31 Depuy Products, Inc. Head gear apparatus

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Photo of Airduct for 3M Powered Air Purifying Respirator.
Photo of Airduct for Arbin Powered Air Purifying Respirator (end view).
Photo of Airduct for Arbin Powered Air Purifying Respirator (side view).
Photo of Airduct for Martindale Powered Air Purifying Respirator.
Photo of Airduct for Speedglas Powered Air Purifying Respirator.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD569501S1 (en) * 2007-03-23 2008-05-20 Hakan Berg Attachment for scavenging escape gas from a nasal mask
USD881380S1 (en) * 2017-10-16 2020-04-14 Gentex Corporation Respirator
USD1057296S1 (en) 2022-04-01 2025-01-07 3M Innovative Properties Company Air supply attachment for a helmet

Also Published As

Publication number Publication date
CA108325S (en) 2005-10-17
AU300701S (en) 2005-02-16

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