US2438058A - Air supply device for respirators - Google Patents

Air supply device for respirators Download PDF

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Publication number
US2438058A
US2438058A US50253643A US2438058A US 2438058 A US2438058 A US 2438058A US 50253643 A US50253643 A US 50253643A US 2438058 A US2438058 A US 2438058A
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air
respirator
member
supply
filtering
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Dwight N Kincheloe
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Dwight N Kincheloe
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/003Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort having means for creating a fresh air curtain

Description

March 16, 1948. D. N. KINCHELOE AIR SUPPLY DEVICE FOR RESPIRATORS Filed Sept. 15, 1943 2 Sheets-Sheet l 20 2/ Java/9702: A/ l'fzwcheloe March 16, 1948. D. N. KINCHELOE ,438,058

AIR SUPPLY DEVICE FOR RESPIRATORS Filed Sept. 15, 1943 2 Sheets-Sheet 2 Inventor I /Y. hfz'ncf/ezae w B) Patented Mar. 16, 1948 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to new and useful improvements in respirators and more particularly to an air supply device therefor.

The principal object of the present invention is to provide an air supply device for the purpose of supplying clean air to respirators in a convenient manner and through the medium of equipment not cumbersome to the wearer.

Another important object of the invention is to provide an air filtering unit for respirators which is of very simple construction and low cost to manufacture.

Other objects and advantages of the invention will become apparent to the reader of the following description.

In the drawings:

Figure 1 is a perspective view showing the device applied to a respirator and being worn.

Figure 2 is a side elevational view showing the device in relation to the main air supply line.

Figure 3 is a vertical sectional view through the respirator and showing the air spreader.

Figure 4 is an inside elevational view of the perforated section.

Figure 5 is a section taken substantially on the line 5-5 of Figure 2.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 denotes a conventional respirator,

while numeral 6 generally refers to the improved filtering unit.

This unit consists of a pair of cylindrical cuplike members 1, 8, the cup-like member 8 overlapping the cup-like member 1, the latter being provided with perforations 9 in its bottom Wall and through which air can pass to the interior of the respirator 5. The member 1 is suitably attached to the respirator 5 so that said perfora tions 9 pass air therethrough into the respirator.

Numeral It denotes an elbow projecting from the intermediate portion of the cup-shaped member 8 and at the inside of this member 9 is a spreader plate H spaced from the member 8 by connnectors l2 and being disposed over the inner end of the elbow In for the purpose of distributing air in all directions in the filtering unit 5. The filtering unit 6 is to be filled with some suitable filtering material.

Numeral l3 denotes a hose which extends from the elbow l9 and again engages over a nipple Hi, this nipple I4 projecting from one end of a hose section 15, which, in turn, is disposed over a nipple I9 projecting from a corresponding valve I! located on a manifold [8, which, in turn, is connected with an air supply line (not shown). The upper end of the manifold 18 is closed as 2 denoted by numeral :9 in Figure 5, and obviously a plurality of valves I! are provided on this upstanding manifold 18, so that any number of hose is can be connected to the manifold for the supply of air to adjacent workmen.

It is preferable that the cup-shaped section "I has a bayonet slot 29 therein to receive a pro- ."iection 2! on the inner side of the section 8.

The air spreader H within the respirator is important in that it creates a smooth flow of air over the entire face of the filter. Therefore, breathing is more natural. Furthermore, this spreader is a protection for the filtering element when workingoff a high pressure line.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:

In combination, a respirator, an air filtering invention, what is unit on one side of the respirator, said air filtering unit comprising a pair of cylindrical cuplike outer and inner members disposed in telescopic relation, one of said members being provided with a perforated sieve-like wall opposed to said side of the respirator with the perforations thereof opening into said respirator, an axial conduit extending from the opposed wall of the other member, an air supply tube connected to the conduit, and an air distributor at the inside of the air filter fixed to said opposed wall of the other member concentrically of said conduit with its perimeter spaced from the circumferential wall of the inner member.

DWIGHT N. KINCHELOE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 804,272 Schwarz Nov. 14. 1905 888,073 Elliott at al May 19, 1908 1,288,647 Miller Dec. 24, 1918 l.292,115 Soderling Jan. 21, 1919 1,590,668 Bello June 29, 1926 1,948,945 Seijo Feb. 2'7, 1934 2,012,441 Wilson et al Aug. 27, 1935 2,104,016 Biggs Jan. 4, 1938 2,106,795 Cover Feb. 1933 2,238,964 Benos Apr. 22, 1941

US2438058A 1943-09-15 1943-09-15 Air supply device for respirators Expired - Lifetime US2438058A (en)

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Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042035A (en) * 1958-12-09 1962-07-03 Baxter Don Inc Mask
US4686976A (en) * 1984-11-28 1987-08-18 Bakkila Charles A Safety mask
US5438981A (en) * 1993-09-30 1995-08-08 Respironics, Inc. Automatic safety valve and diffuser for nasal and/or oral gas delivery mask
US5592935A (en) * 1995-05-03 1997-01-14 Minnesota Mining And Manufacturing Company Positive/negative air pressure adaptor for use with respirators
US5647355A (en) * 1993-09-30 1997-07-15 Respironics, Inc. Automatic safety valve for respiratory equipment which is counter-balanced and self-adjusting
US6006748A (en) * 1996-10-16 1999-12-28 Resmed Limited Vent valve apparatus
US6029660A (en) * 1996-12-12 2000-02-29 Resmed Limited Substance delivery apparatus
US6044844A (en) * 1996-12-02 2000-04-04 Resmed Limited Mask and harness assembly
USD423096S (en) 1997-02-25 2000-04-18 Resmed Limited Nasal mask cushion
US6112746A (en) * 1996-07-26 2000-09-05 Resmed Limited Nasal mask and mask cushion therefor
US6119693A (en) * 1998-01-16 2000-09-19 Resmed Limited Forehead support for facial mask
US6123082A (en) * 1996-12-18 2000-09-26 Resmed Limited Device for preventing or reducing the passage of air through the mouth
US6123071A (en) * 1993-06-18 2000-09-26 Resmed Limited Facial masks for assisted respiration or CPAP
US6494207B1 (en) 1996-12-02 2002-12-17 Resmed Limited Harness assembly for a nasal mask
US20030019495A1 (en) * 2001-05-18 2003-01-30 Palkon David J. Mask cushion and method of using same
US6513526B2 (en) 1996-07-26 2003-02-04 Resmed Limited Full-face mask and mask cushion therefor
US20030034034A1 (en) * 1999-06-18 2003-02-20 Resmed Limited Forehead support for facial mask
US6561190B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US6561191B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US20030221691A1 (en) * 2000-10-19 2003-12-04 Achim Biener Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas
US20040045550A1 (en) * 2002-01-01 2004-03-11 Bernd Lang Breathing mask arrangement and a forehead support device for same
USD498529S1 (en) 1996-07-26 2004-11-16 Resmed Limited Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP)
US20050022820A1 (en) * 2003-05-05 2005-02-03 Kwok Philip R. Forehead support for facial mask
US20050139219A1 (en) * 1999-03-29 2005-06-30 Resmed Limited Forehead support for facial mask
US20050241644A1 (en) * 2004-04-09 2005-11-03 Resmed Limited Nasal assembly
US20060191538A1 (en) * 2001-10-22 2006-08-31 Map Medizin-Technologie Gmbh Application device for breathing mask arrangement
US20060196509A1 (en) * 2000-05-15 2006-09-07 Resmed Limited Respiratory mask having gas washout vent & gas washout vent assembly for a respiratory mask
US7290546B2 (en) 2002-03-22 2007-11-06 Invacare Corporation Nasal mask
US7320323B2 (en) 2001-10-22 2008-01-22 Map Medizin-Technologie Gmbh Breathing mask device and application device and frontal support device thereof
US20080066761A1 (en) * 2006-09-18 2008-03-20 Invacare Corporation Breathing mask
US20080092899A1 (en) * 2003-04-10 2008-04-24 Resmed Limited Mask with integral cushion and forehead piece
US20080257354A1 (en) * 2007-04-19 2008-10-23 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
US7621274B2 (en) 2003-03-22 2009-11-24 Invacare Corporation Nasal mask
US8353294B2 (en) 2004-06-16 2013-01-15 Resmed Limited Respiratory mask assembly
US8485192B2 (en) 2005-01-12 2013-07-16 Resmed Limited Cushion for patient interface
US8505535B2 (en) 2003-05-02 2013-08-13 Resmed Limited Mask system
US8517023B2 (en) 2007-01-30 2013-08-27 Resmed Limited Mask system with interchangeable headgear connectors
US8522785B2 (en) 2002-08-05 2013-09-03 Resmed Limited Inextensible headgear and CPAP or ventilator mask assembly with the same
US8522784B2 (en) 2008-03-04 2013-09-03 Resmed Limited Mask system
US8944061B2 (en) 2005-10-14 2015-02-03 Resmed Limited Cushion to frame assembly mechanism
US9072853B2 (en) 2001-09-07 2015-07-07 Resmed Limited Forehead pad for respiratory mask
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited Interchangeable mask assembly
US9802021B2 (en) 2002-12-06 2017-10-31 Fisher & Paykel Healthcare Limited Mouthpiece

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US804272A (en) * 1905-05-23 1905-11-14 Wilhelm Schwarz Respirator.
US888073A (en) * 1908-02-01 1908-05-19 William E Elliott System for ventilation of mines.
US1288647A (en) * 1916-11-29 1918-12-24 Floyd L Miller Respirator-mask.
US1292115A (en) * 1918-06-17 1919-01-21 Walter Soderling Respirator.
US1590668A (en) * 1925-07-30 1926-06-29 Bello Rosario Gas mask
US1948945A (en) * 1932-01-06 1934-02-27 Seijo Modesto Fernandez Mask for the absorption of poisonous gases
US2012441A (en) * 1932-11-21 1935-08-27 Willson Products Inc Mask for air line respirators
US2104016A (en) * 1935-10-16 1938-01-04 William P Biggs Respiratory device
US2106795A (en) * 1934-04-27 1938-02-01 Harvey S Cover Respirator
US2238964A (en) * 1939-09-01 1941-04-22 Nicholas K Benos Respirator

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US804272A (en) * 1905-05-23 1905-11-14 Wilhelm Schwarz Respirator.
US888073A (en) * 1908-02-01 1908-05-19 William E Elliott System for ventilation of mines.
US1288647A (en) * 1916-11-29 1918-12-24 Floyd L Miller Respirator-mask.
US1292115A (en) * 1918-06-17 1919-01-21 Walter Soderling Respirator.
US1590668A (en) * 1925-07-30 1926-06-29 Bello Rosario Gas mask
US1948945A (en) * 1932-01-06 1934-02-27 Seijo Modesto Fernandez Mask for the absorption of poisonous gases
US2012441A (en) * 1932-11-21 1935-08-27 Willson Products Inc Mask for air line respirators
US2106795A (en) * 1934-04-27 1938-02-01 Harvey S Cover Respirator
US2104016A (en) * 1935-10-16 1938-01-04 William P Biggs Respiratory device
US2238964A (en) * 1939-09-01 1941-04-22 Nicholas K Benos Respirator

Cited By (164)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042035A (en) * 1958-12-09 1962-07-03 Baxter Don Inc Mask
US4686976A (en) * 1984-11-28 1987-08-18 Bakkila Charles A Safety mask
US6123071A (en) * 1993-06-18 2000-09-26 Resmed Limited Facial masks for assisted respiration or CPAP
US5438981A (en) * 1993-09-30 1995-08-08 Respironics, Inc. Automatic safety valve and diffuser for nasal and/or oral gas delivery mask
US5647355A (en) * 1993-09-30 1997-07-15 Respironics, Inc. Automatic safety valve for respiratory equipment which is counter-balanced and self-adjusting
US5592935A (en) * 1995-05-03 1997-01-14 Minnesota Mining And Manufacturing Company Positive/negative air pressure adaptor for use with respirators
US5720280A (en) * 1995-05-03 1998-02-24 Minnesota Mining And Manufacturing Company Attenuator for use with respirators
US8522783B2 (en) 1996-07-26 2013-09-03 Resmed Limited Cushion and mask therefor
US8636006B2 (en) 1996-07-26 2014-01-28 Resmed Limited Mask
US20070261697A1 (en) * 1996-07-26 2007-11-15 Resmed Limited Cushion and mask therefor
US7243651B2 (en) 1996-07-26 2007-07-17 Resmed Limited Cushion and mask therefor
US6112746A (en) * 1996-07-26 2000-09-05 Resmed Limited Nasal mask and mask cushion therefor
US6513526B2 (en) 1996-07-26 2003-02-04 Resmed Limited Full-face mask and mask cushion therefor
US20070107735A1 (en) * 1996-07-26 2007-05-17 Resmed Limited Mask
US9421339B2 (en) 1996-07-26 2016-08-23 Resmed Limited Patient interface
US7178527B2 (en) 1996-07-26 2007-02-20 Resmed Limited Nasal mask and mask cushion therefor
US6357441B1 (en) 1996-07-26 2002-03-19 Resmed Limited Nasal mask and mask cushion therefor
US7950392B2 (en) 1996-07-26 2011-05-31 Resmed Limited Cushion and mask therefor
US20050022818A1 (en) * 1996-07-26 2005-02-03 Resmed Limited Cushion and mask therefor
US8056561B2 (en) 1996-07-26 2011-11-15 Resmed Limited Full-face mask and mask cushion therefor
US6871649B2 (en) 1996-07-26 2005-03-29 Resmed Limited Nasal mask cushion assembly
USD498529S1 (en) 1996-07-26 2004-11-16 Resmed Limited Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP)
US20040094159A1 (en) * 1996-07-26 2004-05-20 Resmed Limited Breathing mask and mask cushion therefor
US7069933B2 (en) 1996-07-26 2006-07-04 Resmed Limited Breathing mask and mask cushion therefor
US9463295B2 (en) 1996-07-26 2016-10-11 Resmed Limited Mask and mask cushion therefor
US6581602B2 (en) 1996-07-26 2003-06-24 Resmed Limited Nasal mask and mask cushion therefor
US6634358B2 (en) 1996-07-26 2003-10-21 Resmed Limited Nasal mask cushion assembly
US6701927B2 (en) 1996-07-26 2004-03-09 Resmed Limited Full-face mask and mask cushion therefor
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US7059325B2 (en) 1996-10-16 2006-06-13 Resmed Limited Vent assembly
US6889692B2 (en) 1996-10-16 2005-05-10 Resmed Limited Vent valve assembly
US6006748A (en) * 1996-10-16 1999-12-28 Resmed Limited Vent valve apparatus
US20060185674A1 (en) * 1996-10-16 2006-08-24 Resmed Limited Vent valve apparatus
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US7036508B2 (en) 1996-12-02 2006-05-02 Resmed Limited Harness assembly for a nasal mask
US6044844A (en) * 1996-12-02 2000-04-04 Resmed Limited Mask and harness assembly
US20070267021A1 (en) * 1996-12-02 2007-11-22 Resmed Limited Harness assembly for a nasal mask
US6029660A (en) * 1996-12-12 2000-02-29 Resmed Limited Substance delivery apparatus
US6123082A (en) * 1996-12-18 2000-09-26 Resmed Limited Device for preventing or reducing the passage of air through the mouth
US7207335B2 (en) 1997-02-10 2007-04-24 Resmed Limited Mask and vent assembly therefor
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US20080066761A1 (en) * 2006-09-18 2008-03-20 Invacare Corporation Breathing mask
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US20080257354A1 (en) * 2007-04-19 2008-10-23 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
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