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Publication numberUS1701277 A
Publication typeGrant
Publication dateFeb 5, 1929
Filing dateFeb 18, 1927
Priority dateFeb 18, 1927
Publication numberUS 1701277 A, US 1701277A, US-A-1701277, US1701277 A, US1701277A
InventorsShindel Harry F
Original AssigneeWillson Products Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Valve device for respirators or the like
US 1701277 A
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Description  (OCR text may contain errors)

Feb. 5, 1929. 1,701,277

H. F. SHINDEL VALVE DEVIOEFOR RESPIRATORS OR THE LIKE Filed Feb. 18, 1927 Harry 2? 51717712].

371 ucnhw Patented F ch. 5, 1929. V

UNITED STATES PATENT OFFICE.

HARRY F. SHINIDEL, OI READING, PENNSYLVANIA, ASSIGNOR TO WILLSON PRODUCTS,

INC., 01 READING, PENNSYLVANIA,

A CORPORATION OF PENNSYLVANIA.

vanvn nnvrcn ron. nnsrmn'rons on r111: LIKE.

- Application filed February My invention relates to respirators or like dcviceswhich comprise a close-fitting airchamber having suitable provision for inhaling and a separate exhaling outlet, and it consists in an improved valve arrangement for the'latter as hilly described in connection with the accompanying drawing and clearly defined in the subjoined claim.

Fig. l is a diagrammatic side elevation of a respirator having my improved outlet valve applied thereto; Fig. 2 is an enlarged fragmentary cross-section of the chamber wall with the valve applied thereto, taken on the line 22 of Fig. 1; Figs. 3 and 4 are respectively an edge view and an inner plan view of the valve cap; and Fig. 5 is a sepatively retained by the cap.

The respirator indicated comprises a cup shaped air chamber a, formed of soft rubber and adapted to fit closelyto the face of the wearer, its open contracted forward portion being provided with a suitable casing 72 adapted to contain suitable filling material through which the inhaled air passes; a separate outlet opening 0 being provided in the chamber wall for discharge of the exhaled air.

In my improved construction the wall outlet opening 0 isrprovided with an exterior circular boss 5'; which boss forms a'seat for the rim portion 6 of a disc valve having an integral flap 7 adapted to normally close the opening, and is also provided with a p ripheral circular groove 8 adapted to be engaged by the valve cap separately shown in Figs. 3 and 4. z

This valve cap 10 is formed of sheet material pressed to cup-shape-as shown; the rim flange thereof having portions 11 which are adapted to fit over the wall boss 5, with in rate Vievwof the flap valve which is opera 18, 1927. Serial No. 169,215.

tervening notched portions 12. These notched portions 12 of the cap flange are set outward from the boss-engaging portions 11 so as to provide free discharge openings 13.,- through the cup flange when the valve flap 7 is opened by exhaling pressure; the increased diameter of the notched flange portions 12, extending below the valve-seating, face of the boss 5 but being spaced away from the periphery of the latter; and the boss-fitting flange portions 11 being formed with interior ofi'sets 1a which press the rim portion 6 of the valve to its seat upon the boss when the cap is in place upon the latter; and also having interior radial projections .15 which serve as detents adapted to engage in the peripheral groove 8 of the boss when the cap is so placed. My improved valve cap thus provides a very simple and neat valve-securing device which is adapted to permit free discharge of the exhaled air while forming a .very satisfactory covering of the wall opening, and which is very securely retained in place though readily removable when desired. The specific form set forth may be readily modified within the invention as defined in the claim.

' What I claim is: I

In combination with a chamber-enclosing 7o respirator-wall or the like having a discharge aperture with a surrounding valve-- retaining boss; a valve devige comprising a flap-valve seatingupon'said boss, and a valve-retaining cap having an annular flange with spaced apart boss-engaging portions having valve-contacting offsets and intervening portions of enlarged diameter having air-escape notches. o In testimoney whereof I afiix my signac ture.

HARRY F. SHINDEL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2426040 *Mar 10, 1944Aug 19, 1947Miller George LCheck valve
US2738788 *Apr 8, 1952Mar 20, 1956Willson Products IncRespirator with speaking diaphragm
US6460539 *Sep 21, 2000Oct 8, 20023M Innovative Properties CompanyRespirator that includes an integral filter element, an exhalation valve, and impactor element
US6843248Apr 18, 2001Jan 18, 20053M Innovative Properties CompanyFiltering face mask that has a new exhalation valve
US6854463 *May 11, 1994Feb 15, 20053M Innovative Properties CompanyFiltering face mask that has a new exhalation valve
US7117868 *Oct 3, 2000Oct 10, 20063M Innovative Properties CompanyFibrous filtration face mask having a new unidirectional fluid valve
US7311104 *Apr 18, 2001Dec 25, 20073M Innovative Properties CompanyMethod of making a filtering face mask that has an exhalation valve
US7428903 *Oct 6, 2000Sep 30, 20083M Innovative Properties CompanyFibrous filtration face mask having a new unidirectional fluid valve
US7493900 *Oct 3, 2000Feb 24, 20093M Innovative Properties CompanyFibrous filtration face mask having a new unidirectional fluid valve
US7644714May 23, 2006Jan 12, 2010Apnex Medical, Inc.Devices and methods for treating sleep disorders
US7809442Oct 12, 2007Oct 5, 2010Apnex Medical, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8311645Apr 26, 2011Nov 13, 2012Apnex Medical, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8386046Oct 3, 2011Feb 26, 2013Apnex Medical, Inc.Screening devices and methods for obstructive sleep apnea therapy
US8417343Oct 12, 2007Apr 9, 2013Apnex Medical, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8428727Apr 25, 2011Apr 23, 2013Apnex Medical, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8498712Dec 29, 2010Jul 30, 2013Apnex Medical, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8626304Dec 29, 2010Jan 7, 2014Cyberonics, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8639354Oct 3, 2011Jan 28, 2014Cyberonics, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8718783Dec 15, 2011May 6, 2014Cyberonics, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8744589Dec 29, 2010Jun 3, 2014Cyberonics, Inc.Obstructive sleep apnea treatment devices, systems and methods
US8757156Oct 13, 2008Jun 24, 20143M Innovative Properties CompanyFace mask with unidirectional multi-flap valve
EP2345458A1 *Oct 13, 2008Jul 20, 20113M Innovative Properties Co.Face mask with unidirectional valve
WO2009088545A2 *Oct 13, 2008Jul 16, 20093M Innovative Properties CoFace mask with unidirectional valve
Classifications
U.S. Classification137/855, 128/207.12, 137/377
International ClassificationF16K15/14, F16K15/16
Cooperative ClassificationF16K15/16
European ClassificationF16K15/16