|Publication number||US2438058 A|
|Publication date||Mar 16, 1948|
|Filing date||Sep 15, 1943|
|Priority date||Sep 15, 1943|
|Publication number||US 2438058 A, US 2438058A, US-A-2438058, US2438058 A, US2438058A|
|Inventors||Kincheloe Dwight N|
|Original Assignee||Kincheloe Dwight N|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (95), Classifications (5) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Air supply device for respirators
US 2438058 A
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
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US804272 *||May 23, 1905||Nov 14, 1905||Wilhelm Schwarz||Respirator.|
|US888073 *||Feb 1, 1908||May 19, 1908||William E Elliott||System for ventilation of mines.|
|US1288647 *||Nov 29, 1916||Dec 24, 1918||Floyd L Miller||Respirator-mask.|
|US1292115 *||Jun 17, 1918||Jan 21, 1919||Walter Soderling||Respirator.|
|US1590668 *||Jul 30, 1925||Jun 29, 1926||Rosario Bello||Gas mask|
|US1948945 *||Jan 6, 1932||Feb 27, 1934||Fernandez Seijo Modesto||Mask for the absorption of poisonous gases|
|US2012441 *||Aug 12, 1933||Aug 27, 1935||Willson Products Inc||Mask for air line respirators|
|US2104016 *||Oct 16, 1935||Jan 4, 1938||William P Biggs||Respiratory device|
|US2106795 *||Sep 21, 1934||Feb 1, 1938||Harvey S Cover||Respirator|
|US2238964 *||Sep 1, 1939||Apr 22, 1941||Benos Nicholas K||Respirator|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3042035 *||Dec 9, 1958||Jul 3, 1962||Baxter Don Inc||Mask|
|US4686976 *||Dec 27, 1985||Aug 18, 1987||Bakkila Charles A||Safety mask|
|US5438981 *||Sep 30, 1993||Aug 8, 1995||Respironics, Inc.||Automatic safety valve and diffuser for nasal and/or oral gas delivery mask|
|US5592935 *||May 3, 1995||Jan 14, 1997||Minnesota Mining And Manufacturing Company||Positive/negative air pressure adaptor for use with respirators|
|US5647355 *||May 30, 1995||Jul 15, 1997||Respironics, Inc.||Automatic safety valve for respiratory equipment which is counter-balanced and self-adjusting|
|US5720280 *||Oct 8, 1996||Feb 24, 1998||Minnesota Mining And Manufacturing Company||Attenuator for use with respirators|
|US6006748 *||Oct 16, 1997||Dec 28, 1999||Resmed Limited||Vent valve apparatus|
|US6029660 *||Dec 12, 1997||Feb 29, 2000||Resmed Limited||Substance delivery apparatus|
|US6044844 *||Dec 2, 1997||Apr 4, 2000||Resmed Limited||Mask and harness assembly|
|US6112746 *||Jan 31, 1997||Sep 5, 2000||Resmed Limited||Nasal mask and mask cushion therefor|
|US6119693 *||Jan 16, 1998||Sep 19, 2000||Resmed Limited||Forehead support for facial mask|
|US6123071 *||Sep 26, 1996||Sep 26, 2000||Resmed Limited||Facial masks for assisted respiration or CPAP|
|US6123082 *||Oct 3, 1997||Sep 26, 2000||Resmed Limited||Device for preventing or reducing the passage of air through the mouth|
|US6357441||Jul 16, 1997||Mar 19, 2002||Resmed Limited||Nasal mask and mask cushion therefor|
|US6463931||Jun 30, 2000||Oct 15, 2002||Resmed Limited||Forehead support for facial mask|
|US6494207||Dec 2, 1997||Dec 17, 2002||Resmed Limited||Harness assembly for a nasal mask|
|US6513526||May 21, 1999||Feb 4, 2003||Resmed Limited||Full-face mask and mask cushion therefor|
|US6557556||May 13, 2002||May 6, 2003||Resmed Limited||Forehead support for facial mask|
|US6561190||Feb 10, 1998||May 13, 2003||Resmed Limited||Mask and a vent assembly therefor|
|US6561191||Dec 1, 1999||May 13, 2003||Resmed Limited||Mask and a vent assembly therefor|
|US6581602||Feb 8, 2002||Jun 24, 2003||Resmed Limited||Nasal mask and mask cushion therefor|
|US6634358||May 8, 2000||Oct 21, 2003||Resmed Limited||Nasal mask cushion assembly|
|US6691708||Aug 29, 2002||Feb 17, 2004||Resmed Limited||Forehead support for facial mask|
|US6701927||Jun 11, 2002||Mar 9, 2004||Resmed Limited||Full-face mask and mask cushion therefor|
|US6860269||Oct 4, 2002||Mar 1, 2005||Resmed Limited||Forehead support for facial mask|
|US6871649||Dec 6, 2001||Mar 29, 2005||Resmed Limited||Nasal mask cushion assembly|
|US6889692||Feb 13, 2003||May 10, 2005||Resmed Limited||Vent valve assembly|
|US6973929||Dec 17, 2002||Dec 13, 2005||Resmed Limited||Forehead support for a facial mask|
|US6997188||Sep 15, 2003||Feb 14, 2006||Resmed Limited||Forehead support for facial mask|
|US7000614||Mar 14, 2002||Feb 21, 2006||Map Medizin-Technologie Gmbh||Breathing mask arrangement and a forehead support device for same|
|US7007696||May 16, 2002||Mar 7, 2006||Tiara Medical Systems, Inc.||Mask cushion and method of using same|
|US7036508||Apr 30, 2002||May 2, 2006||Resmed Limited||Harness assembly for a nasal mask|
|US7059325||Mar 31, 2005||Jun 13, 2006||Resmed Limited||Vent assembly|
|US7069933||Nov 12, 2003||Jul 4, 2006||Resmed Limited||Breathing mask and mask cushion therefor|
|US7100610||Oct 16, 2001||Sep 5, 2006||Map Medizintechnologie Gmbh||Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas|
|US7178527||Feb 11, 2002||Feb 20, 2007||Resmed Limited||Nasal mask and mask cushion therefor|
|US7207335||Feb 12, 2003||Apr 24, 2007||Resmed Limited||Mask and vent assembly therefor|
|US7234466||Nov 4, 2003||Jun 26, 2007||Resmed Limited||Forehead support for facial mask|
|US7243651||Sep 7, 2004||Jul 17, 2007||Resmed Limited||Cushion and mask therefor|
|US7290546||Mar 22, 2003||Nov 6, 2007||Invacare Corporation||Nasal mask|
|US7320323||Oct 22, 2002||Jan 22, 2008||Map Medizin-Technologie Gmbh||Breathing mask device and application device and frontal support device thereof|
|US7406965||May 5, 2004||Aug 5, 2008||Resmed Limited||Forehead support for facial mask|
|US7472704||Mar 2, 2005||Jan 6, 2009||Resmed Limited||Forehead support for facial mask|
|US7503327||Apr 9, 2004||Mar 17, 2009||Resmed Limited||Mask with integral cushion and forehead piece|
|US7610916||Aug 28, 2006||Nov 3, 2009||Resmed Limited||Forehead support for facial mask|
|US7621274||Jun 23, 2003||Nov 24, 2009||Invacare Corporation||Nasal mask|
|US7654263||May 13, 2005||Feb 2, 2010||Map Medizin-Technologie Gmbh||Breathing mask arrangement and a forehead support device for same|
|US7762259||Dec 17, 2007||Jul 27, 2010||Resmed Limited||Mask with integral cushion and forehead piece|
|US7775209||Jul 25, 2006||Aug 17, 2010||Map Medizintechnologie Gmbh||Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas|
|US7845354||Nov 19, 2002||Dec 7, 2010||Resmed Limited||Mask and vent assembly therefor|
|US7882837||Aug 19, 2005||Feb 8, 2011||Resmed Limited||Forehead support for facial mask|
|US7926487||Apr 28, 2006||Apr 19, 2011||Resmed Limited||Respiratory mask having gas washout vent and gas washout vent assembly for a respiratory mask|
|US7942149||Jan 5, 2009||May 17, 2011||Resmed Limited||Forehead support for a facial mask|
|US7942150||Apr 8, 2005||May 17, 2011||Resmed Limited||Nasal assembly|
|US7950392||Jul 13, 2007||May 31, 2011||Resmed Limited||Cushion and mask therefor|
|US7967014||Apr 25, 2006||Jun 28, 2011||Map Medizin-Technologie Gmbh||Application device for breathing mask arrangement|
|US7992559||Nov 28, 2007||Aug 9, 2011||Map Medizin-Technologie Gmbh||Breathing mask arrangement as well as an application device and a forehead support device for same|
|US8028698||Sep 17, 2007||Oct 4, 2011||Invacare Corporation||Breathing mask|
|US8056561||May 12, 2006||Nov 15, 2011||Resmed Limited||Full-face mask and mask cushion therefor|
|US8122886||Dec 27, 2006||Feb 28, 2012||Resmed Limited||Respiratory mask assembly with vent|
|US8186348||Sep 23, 2009||May 29, 2012||Resmed Limited||Forehead support for facial mask|
|US8210180||Jun 30, 2010||Jul 3, 2012||Resmed Limited||Mask with integral cushion and forehead piece|
|US8353294||Mar 21, 2011||Jan 15, 2013||Resmed Limited||Respiratory mask assembly|
|US8371301||Jul 9, 2010||Feb 12, 2013||Resmed R&D Germany Gmbh||Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas|
|US8402972||Aug 27, 2009||Mar 26, 2013||Resmed R&D Germany Gmbh||Breathing mask arrangement and a forehead support device for same|
|US8479738||May 20, 2011||Jul 9, 2013||Resmed R&D Germany Gmbh||Breathing mask arrangement as well as an application device and a forehead support device for same|
|US8485192||Jun 29, 2012||Jul 16, 2013||Resmed Limited||Cushion for patient interface|
|US8505535||Dec 23, 2009||Aug 13, 2013||Resmed Limited||Mask system|
|US8517023||Jan 29, 2008||Aug 27, 2013||Resmed Limited||Mask system with interchangeable headgear connectors|
|US8522783||May 16, 2011||Sep 3, 2013||Resmed Limited||Cushion and mask therefor|
|US8522784||Jan 23, 2013||Sep 3, 2013||Resmed Limited||Mask system|
|US8522785||Aug 5, 2003||Sep 3, 2013||Resmed Limited||Inextensible headgear and CPAP or ventilator mask assembly with the same|
|US8528558||Mar 15, 2011||Sep 10, 2013||Resmed Limited||Respiratory mask having washout vent and gas washout vent assembly for a respiratory mask|
|US8528561||Jan 18, 2013||Sep 10, 2013||Resmed Limited||Mask system|
|US8550081||Nov 29, 2012||Oct 8, 2013||Resmed Limited||Cushion for patient interface|
|US8550082||Nov 29, 2012||Oct 8, 2013||Resmed Limited||Cushion for patient interface|
|US8550083||Nov 29, 2012||Oct 8, 2013||Resmed Limited||Cushion for patient interface|
|US8550084||Feb 27, 2009||Oct 8, 2013||Resmed Limited||Mask system|
|US8555885||Nov 29, 2012||Oct 15, 2013||Resmed Limited||Cushion for patient interface|
|US8567404||Nov 14, 2012||Oct 29, 2013||Resmed Limited||Cushion for patient interface|
|US8573213||Nov 14, 2012||Nov 5, 2013||Resmed Limited||Cushion for patient interface|
|US8573214||Nov 28, 2012||Nov 5, 2013||Resmed Limited||Cushion for patient interface|
|US8573215||Nov 29, 2012||Nov 5, 2013||Resmed Limited||Cushion for patient interface|
|US8578935||Nov 29, 2012||Nov 12, 2013||Resmed Limited||Cushion for patient interface|
|US8613280||Nov 14, 2012||Dec 24, 2013||Resmed Limited||Cushion for patient interface|
|US8613281||Nov 29, 2012||Dec 24, 2013||Resmed Limited||Cushion for patient interface|
|US8616211||Nov 29, 2012||Dec 31, 2013||Resmed Limited||Cushion for patient interface|
|US8636006||Jan 3, 2007||Jan 28, 2014||Resmed Limited||Mask|
|US8646450||Mar 29, 2011||Feb 11, 2014||Resmed Limited||Forehead support for a facial mask|
|US8746250||Jan 28, 2013||Jun 10, 2014||Resmed R&D Germany Gmbh||Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas|
|US8757162||Nov 2, 2010||Jun 24, 2014||Resmed Limited||Nasal assembly|
|US8794239||Jun 19, 2012||Aug 5, 2014||Resmed Limited||Mask with integral cushion and forehead piece|
|US8813748||Nov 10, 2011||Aug 26, 2014||Resmed Limited||Full-face mask and mask cushion therefor|
|US8826910||Feb 11, 2013||Sep 9, 2014||Resmed Limited||Mask and vent assembly therefor|
|US8833371||Nov 11, 2010||Sep 16, 2014||Resmed Limited||Mask and vent assembly therefor|