US3137296A - Respirator filter mounting means - Google Patents
Respirator filter mounting means Download PDFInfo
- Publication number
- US3137296A US3137296A US131698A US13169861A US3137296A US 3137296 A US3137296 A US 3137296A US 131698 A US131698 A US 131698A US 13169861 A US13169861 A US 13169861A US 3137296 A US3137296 A US 3137296A
- Authority
- US
- United States
- Prior art keywords
- face piece
- filter
- tabs
- headband
- strip
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
- A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
Definitions
- This invention relates to a respirator of the type which surrounds the nose, cheeks and chin of the wearer to protect him from inhaling dusts, and, more particularly, relates to means for mounting a filter within the respirator mask in a readily detachable manner.
- respirators of the type having a detachable filter backing frame have been molded with complicated integrally molded projections for supporting the frame, which have involved difliculty in molding, as well as increasing the cost of production.
- An object of my invention is to provide a novel means for detachably mounting a filter and filter-backing frame on an open face piece of a respirator in a readily attachable and detachable manner so as to avoid the above named disadvantages, that is, devoid of integral projections or other complicated constructional features for supporting the filter-backing frame.
- FIG. 1 is a front, elevational view of the respirator embodying the principles of the present invention
- FIG. 2 is a cross-sectional view taken along line IIII of FIG. 1;
- FIG. 3 is a cross-sectional view taken along line IIIIH of FIG. 2;
- FIG. 4 is a cross-sectional view of the filter-backing frame taken through strip 10 of FIG. 3;
- FIG. 5 is an enlarged, fragmentary view of the head strap anchoring portion 6, shown in FIG. 1;
- FIG. 6 is a side view showing the respirator of FIGS. l-5 in mounted position on the face of the wearer.
- numeral 1 denotes a respirator face piece of rubber, plastic or other flexible material having a substantially triangular mouth portion for surrounding and closely contacting, in a dust fight manner, the nose, cheeks and chin of the wearer.
- Numeral 2 denotes an integral, inturned, front marginal portion of the face piece 1 for supporting a a substantially triangular filter 9 of felt, paper or any other suitable filtering material.
- Integrally molded with marginal portion 2 are strips 4 and a substantially cruci form element 3 which, together with the marginal portion 2, provide an open framework or grille against which is supported the filter 9.
- a filter backing frame is provided for detachable mounting within the face piece as a backing for the filter 9.
- Such frame comprises a vertical strip 10 having integral, laterally extending strips 11, all of which strips integrally join a substantially triangular perimetrical strip 8.
- the backing frame is preferably made of flexble plastic material and is provided with radially outwardly extending lugs or tabs 12, which are preferably offset relative to the plane of the frame, as shown in FIG. 4, so as to provide a tight marginal seal between the hacking frame marginal portion 8 and the perimeter of the filter 9.
- tabs 12 are shown, however, this number may be increased or decreased, as desired.
- headband strap anchors 6 preferably of the same material as the face piece 1, which are provided with grooves 6b extending therethrough from front to rear of the projection 6, and grooves 6a extending laterally and at right angles to grooves 6b.
- the headband strap 6c may be inserted through the rear of groove 6b, then outwardly through groove 6a and reversely bent so as to extend rearwardly of the mask.
- headband strap will pull the marginal or mouth portion of the face piece inwardly to form a tighter seal with the face of the wearer since'the pull on the headband is outwardly of anchors 6.
- a respirator comprising a substantially triangular face piece of flexible material having an opening in the front thereof bounded by an inturned marginal flange integrally molded on said face piece and surrounding said opening, a grille portion integral with and extending from said flange, a filter supported against said flange and grille portion, a filter backing frame comprising a substantially triangular strip having a plurality of radially outwardly extending tabs, including tabs at substantially the corners of said strip offset forwardly of the plane of said strip, and cross strips integrally joined to said substantially triangular strip, said substantially triangular face piece including a plurality of integrally molded, radially outwardly extending projections at substantially the corners of said substantially triangular face piece corresponding to the positions of said tabs, each projection including a groove substantially in the plane of said filter for snugly receiving one of said tabs so as to hold the peripheral portion of said frame tightly against the peripheral portion of said filter while the latter is held tightly against said flange portion to form a dust-tight seal,
- said headband strap anchoring means are in the form of projections integrally molded at the sides of the face piece, each projection having an opening extending from front to rear throughout the entire length of the projection and an opening extending sidewise through said projection and at right angles to said opening and in communication therewith, said headband strap having end portions extending through a portion of said first mentioned openings from rear to front and thence out- 10 wardly through said sidewise extending openings and thence extending rearwardly along the outer surfaces of said projections and about the rear neck portion of the wearer so as to tightly hold the sides of said respirator tightly against the face of the wearer.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US131698A US3137296A (en) | 1961-05-29 | 1961-05-29 | Respirator filter mounting means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US131698A US3137296A (en) | 1961-05-29 | 1961-05-29 | Respirator filter mounting means |
Publications (1)
Publication Number | Publication Date |
---|---|
US3137296A true US3137296A (en) | 1964-06-16 |
Family
ID=22450622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US131698A Expired - Lifetime US3137296A (en) | 1961-05-29 | 1961-05-29 | Respirator filter mounting means |
Country Status (1)
Country | Link |
---|---|
US (1) | US3137296A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3276445A (en) * | 1964-02-25 | 1966-10-04 | Weck & Co Edward | Surgical mask |
US3521630A (en) * | 1967-04-07 | 1970-07-28 | Minnesota Mining & Mfg | Respirator face mask with replaceable filter |
US3735571A (en) * | 1970-06-09 | 1973-05-29 | K Pampuch | Respirators |
US4463757A (en) * | 1982-05-03 | 1984-08-07 | Schmidt Edward J | Covering device for tracheostomy stoma |
US5408995A (en) * | 1993-04-16 | 1995-04-25 | Figgie International Inc. | Continuous flow passenger oxygen dispensing unit |
US20150047642A1 (en) * | 2012-04-30 | 2015-02-19 | Scott Technologies. Inc. | Half Facepiece |
USD757249S1 (en) * | 2015-01-13 | 2016-05-24 | Lu Xu | Respirator mask |
US9457207B2 (en) | 2013-09-04 | 2016-10-04 | Waterford Mask Systems Inc. | Facemask with filter insert for protection against airborne pathogens |
USD778431S1 (en) * | 2014-10-08 | 2017-02-07 | Adam Sloan Glickfield | Mask for noise reduction |
USD811582S1 (en) * | 2016-07-06 | 2018-02-27 | Sleepnet Corporation | Face mask |
USD812737S1 (en) * | 2016-07-06 | 2018-03-13 | Sleepnet Corporation | Face mask |
US20210274865A1 (en) * | 2020-03-09 | 2021-09-09 | Leigh Ann Radziwon | Protective mask, material and kit |
IT202000007309A1 (en) * | 2020-04-06 | 2021-10-06 | Spectre S R L | FACIAL PROTECTION MASK WITH REMOVABLE FILTER |
WO2021213702A3 (en) * | 2020-04-24 | 2021-12-23 | Löwenstein Medical Technology S.A. | Breathing mask with particle filter |
USD946832S1 (en) * | 2020-12-03 | 2022-03-22 | Haiyang Jiang | Foldable mask |
US11484734B2 (en) | 2013-09-04 | 2022-11-01 | Octo Safety Devices, Llc | Facemask with filter insert for protection against airborne pathogens |
US11554276B2 (en) | 2018-04-11 | 2023-01-17 | Octo Safety Devices, Llc | Facemask with facial seal and seal test device |
USD991441S1 (en) * | 2020-07-28 | 2023-07-04 | Rynthiva Thongkham | Mask |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1079227A (en) * | 1912-12-17 | 1913-11-18 | Walter Francis Fanning | Respirator. |
US3014479A (en) * | 1959-05-20 | 1961-12-26 | Welsh Mfg Co | Respirator |
US3029812A (en) * | 1958-03-03 | 1962-04-17 | Welsh Mfg Co | Respirator |
-
1961
- 1961-05-29 US US131698A patent/US3137296A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1079227A (en) * | 1912-12-17 | 1913-11-18 | Walter Francis Fanning | Respirator. |
US3029812A (en) * | 1958-03-03 | 1962-04-17 | Welsh Mfg Co | Respirator |
US3014479A (en) * | 1959-05-20 | 1961-12-26 | Welsh Mfg Co | Respirator |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3276445A (en) * | 1964-02-25 | 1966-10-04 | Weck & Co Edward | Surgical mask |
US3521630A (en) * | 1967-04-07 | 1970-07-28 | Minnesota Mining & Mfg | Respirator face mask with replaceable filter |
US3735571A (en) * | 1970-06-09 | 1973-05-29 | K Pampuch | Respirators |
US4463757A (en) * | 1982-05-03 | 1984-08-07 | Schmidt Edward J | Covering device for tracheostomy stoma |
US5408995A (en) * | 1993-04-16 | 1995-04-25 | Figgie International Inc. | Continuous flow passenger oxygen dispensing unit |
US20150047642A1 (en) * | 2012-04-30 | 2015-02-19 | Scott Technologies. Inc. | Half Facepiece |
US10744352B2 (en) * | 2012-04-30 | 2020-08-18 | Scott Technologies, Inc. | Half facepiece |
US11484734B2 (en) | 2013-09-04 | 2022-11-01 | Octo Safety Devices, Llc | Facemask with filter insert for protection against airborne pathogens |
US9457207B2 (en) | 2013-09-04 | 2016-10-04 | Waterford Mask Systems Inc. | Facemask with filter insert for protection against airborne pathogens |
US11833372B2 (en) | 2013-09-04 | 2023-12-05 | Octo Safety Devices, Llc | Facemask with filter insert for protection against airborne pathogens |
USD778431S1 (en) * | 2014-10-08 | 2017-02-07 | Adam Sloan Glickfield | Mask for noise reduction |
USD757249S1 (en) * | 2015-01-13 | 2016-05-24 | Lu Xu | Respirator mask |
USD812737S1 (en) * | 2016-07-06 | 2018-03-13 | Sleepnet Corporation | Face mask |
USD811582S1 (en) * | 2016-07-06 | 2018-02-27 | Sleepnet Corporation | Face mask |
US11554276B2 (en) | 2018-04-11 | 2023-01-17 | Octo Safety Devices, Llc | Facemask with facial seal and seal test device |
US12029927B2 (en) | 2018-04-11 | 2024-07-09 | Octo Safety Devices, Llc | Facemask with facial seal and seal test device |
US20210274865A1 (en) * | 2020-03-09 | 2021-09-09 | Leigh Ann Radziwon | Protective mask, material and kit |
IT202000007309A1 (en) * | 2020-04-06 | 2021-10-06 | Spectre S R L | FACIAL PROTECTION MASK WITH REMOVABLE FILTER |
WO2021213702A3 (en) * | 2020-04-24 | 2021-12-23 | Löwenstein Medical Technology S.A. | Breathing mask with particle filter |
USD991441S1 (en) * | 2020-07-28 | 2023-07-04 | Rynthiva Thongkham | Mask |
USD946832S1 (en) * | 2020-12-03 | 2022-03-22 | Haiyang Jiang | Foldable mask |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: C & D ACQUISITION CORP., 280 PARK AVE., NEW YORK, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INCO SAFETY PRODUCTS COMPANY;REEL/FRAME:003955/0259 Effective date: 19810730 Owner name: MANUFACTURERS HANOVER COMMERICIAL CORPORATION, 121 Free format text: SECURITY INTEREST;ASSIGNOR:C & D ACQUISITION CORP.;REEL/FRAME:003955/0272 Effective date: 19810730 Owner name: C & D ACQUISITION CORP., A CORP. OF DE., NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INCO SAFETY PRODUCTS COMPANY;REEL/FRAME:003955/0259 Effective date: 19810730 Owner name: MANUFACTURERS HANOVER COMMERICIAL CORPORATION, A C Free format text: SECURITY INTEREST;ASSIGNOR:C & D ACQUISITION CORP.;REEL/FRAME:003955/0272 Effective date: 19810730 |