US3266490A - Pocket respirator - Google Patents
Pocket respirator Download PDFInfo
- Publication number
- US3266490A US3266490A US359353A US35935364A US3266490A US 3266490 A US3266490 A US 3266490A US 359353 A US359353 A US 359353A US 35935364 A US35935364 A US 35935364A US 3266490 A US3266490 A US 3266490A
- Authority
- US
- United States
- Prior art keywords
- air
- respirator
- body portion
- rubber
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing 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
Definitions
- This invention relates to a pocket respirator and, more particularly, to the mouth piece and attached assembly for such respirator.
- An object of the present invention is to provide a novel pocket respirator which is devoid of the above named disadvantages and which is relatively compact, simple in construction and inexpensive to manufacture and assemble.
- a further object of the present invention is to provide a novel escape unit embodying a canister which may be selectively substituted for the conventional filter unit of the pocket respirator.
- FIG. 1 is a perspective view of a pocket respirator embodying the principles of the present invention
- FIG. 2 is an enlarged, exploded view showing the various parts of the pocket respirator shown in FIG. 1;
- FIG. 3 is a side view of the mouth piece portion of the pocket respirator and an escape unit embodying a canister which is selectively substituted for the filter unit shown in FIGS. 1 and 2 to provide an escape unit.
- numeral 1 generally denotes a filter assembly for filtering the surrounding air of dust, fumes and mists, comprising a screw threaded cover 2 having perforations 3 through which air is admitted and passes through a filter pad 4.
- the cover is screw threaded onto a threaded base 5 which supports a filter cartridge 6 of any well known construction, such as a chemical cartridge or one including activated charcoal or any other suitable filtering material for air.
- a filter cartridge 6 of any well known construction, such as a chemical cartridge or one including activated charcoal or any other suitable filtering material for air.
- clips 8 Attached to diametrically opposed portions of the base 5 are clips 8 to which are attached the ends of strap 9 which extends about the rear portion of the neck of the wearer to support the respirator when the mouth piece is not held in the mouth.
- Diaphragm 14 when mounted on collar 12, is adapted to become seated on flange or seat 15 or to become unseated therefrom when air is inhaled.
- the pocket respirator unit generally denoted by numeral 17, comprises a body portion 20, preferably made of neoprene, rubber or plastic material, and provided with an air inlet opening 18 and air outlet opening 23, both of which are circular and in confronting relationship.
- the valve seat 15 is adapted to be projected through air inlet opening 18, while the latter is stretched, until collar portion 19 snugly seats within the opening 18.
- filtered air is drawn into the body portion 20, the mouth piece 21, outlet 21a and into the mouth'of the wearer.
- exhalation valve generally denoted by numeral 24, is projected into outlet opening 23 of flange 22, as the latter is stretched, until ri-m portion 26 seats against the inner surface 27, while the collar portion 25 is snugly emice braced by opening 23 in an air-tight manner.
- the exhalation valve is of hard plastic or rubber material having central openings and a seat 29 on which rubber diaphragm 31 of exhalation valve 30 is seated after the central stud portion thereof is projected into a tight fitting hole in the exhalation valve 24.
- a cover of squirrel cage construction is fitted onto the collar portion 33 and is provided with a plurality of peripherally extending holes 34 through which air may be exhaled.
- a circular spring 37 having terminal loops 38 and 39 which are sandwiched between spool-like rubber elements 40, 41 and to which are integrally secured noseengaging elements 42 and 43 of soft rubber having a readily yieldable rubber connection integrally secured to elements 40, 41 (42, 43 may be of rubber-like material).
- FIG. 3 shows the mouth piece assembly and an escape unit 45 which may be substituted for the filter assembly shown in FIGS. 1 and 2.
- This escape unit comprises a collar portion 47 and flange 46 which takes the place of collar 19 and flange 15 of FIG. 2 in that it is adapted to be projected through air inlet opening 18 and thus mounted on the body portion 20 at which time collar portion 47 is snugly seated in opening 18.
- a housing 48 which is connected to a gas-mask type canister 49, a fragmentary portion of which is shown, air which has been filtered by the canister passes through housing 48 into the body 20 so that purified air will reach the mouth piece 21 as it is held between the lips and teeth while bits 21a thereof are held between the teeth.
- an eflicient pocket respirator which comprises a compact assembly of parts which are easy to assemble and to take apart for cleaning and which are relatively inexpensive in cost, yet which will provide assured filtering of outside air even though the filter is worn in the mouth; furthermore, we have provided a pocket respirator to which an escape unit may be selectively mounted in place of the air filtering unit for use in a gaseous atmosphere.
- a pocket respirator comprising a mouthpiece including a substantially cylindrical body portion of a resilient rubber-like material having an air inlet opening at one end coaxially confronting an air outlet opening at the other end, said openings being of substantially smaller diameter than that of said cylindrical body portion, an air exhalation valve having an integral air-outlet, shoulder-forming annular flanges of larger diameter than said outlet opening separated by an integral collar portion of smaller diameter which has a length equal to the thickness of the body portion at said outlet opening and which detachably fits into said outlet opening to hold the flanges against the inner surface of the body portion to form an air-tight seal therewith, said mouthpiece having an integral mouthpiece portion projecting at an obtuse angle from the top of said body portion above and beyond said exhalation valve, and an 'air filtering unit having integral, air-inlet, shoulderforming annular flanges of larger diameter than that of said air-inlet opening separated by an integral collar portion of smaller diameter which has a length equal to the 3 4 thickness of the body portion at said
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Description
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US359353A US3266490A (en) | 1964-04-13 | 1964-04-13 | Pocket respirator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US359353A US3266490A (en) | 1964-04-13 | 1964-04-13 | Pocket respirator |
Publications (1)
Publication Number | Publication Date |
---|---|
US3266490A true US3266490A (en) | 1966-08-16 |
Family
ID=23413460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US359353A Expired - Lifetime US3266490A (en) | 1964-04-13 | 1964-04-13 | Pocket respirator |
Country Status (1)
Country | Link |
---|---|
US (1) | US3266490A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4090511A (en) * | 1977-03-23 | 1978-05-23 | Mine Safety Appliances Company | Mouthpiece valve for escape breathing apparatus |
DE2826620A1 (en) * | 1978-06-19 | 1979-12-20 | Auergesellschaft Gmbh | NOSE CLAMP FOR BREATHING UNITS |
US4452240A (en) * | 1981-10-05 | 1984-06-05 | E. D. Bullard Company | Respiratory protection apparatus |
US4926853A (en) * | 1988-01-21 | 1990-05-22 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Gas mask nose occluder |
US5533504A (en) * | 1994-09-13 | 1996-07-09 | Stamos; Louis | Apparatus for controlling air flow through nasal passages |
US20030075173A1 (en) * | 2001-10-24 | 2003-04-24 | Daniel Shahaf | Inhalation protection apparatuses |
US20030183227A1 (en) * | 2002-03-26 | 2003-10-02 | Klemperer Walter G. | Mouthpiece, nasal seal, head appliance, apparatus, and methods of treating sleep apnea |
US20040025878A1 (en) * | 2000-07-26 | 2004-02-12 | Duxbury James Neil | Personal respirator |
US20040079058A1 (en) * | 2001-10-26 | 2004-04-29 | Mcgahey Harry V. | Window biological and chemical contamination filter |
WO2005000412A1 (en) * | 2003-06-25 | 2005-01-06 | Johannes Alexander Paulus Paul | Respiratory protection device |
US20070101990A1 (en) * | 2005-11-09 | 2007-05-10 | Respan Products, Inc. | Disposable mask assembly with exhaust filter and method of assembling same |
US20090250060A1 (en) * | 2005-11-09 | 2009-10-08 | Respan Products, Inc. | Disposable mask assembly with exhaust filter and valve disc and method of assembling same |
US20100190126A1 (en) * | 2009-01-23 | 2010-07-29 | Hyo-Sang Park | Nasal and maxillary growth enhancer |
US20110171873A1 (en) * | 2008-09-10 | 2011-07-14 | Vallejo Carl J | Entertaining nose clasp apparatus |
US10688324B2 (en) * | 2018-03-23 | 2020-06-23 | Global Esprit Inc. | Nose clip structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610624A (en) * | 1947-06-04 | 1952-09-16 | Mine Safety Appliances Co | Pocket respirator |
US2852023A (en) * | 1956-11-06 | 1958-09-16 | Mine Safety Appliances Co | Closed circuit breathing apparatus |
US3142549A (en) * | 1961-10-31 | 1964-07-28 | Electric Storage Battery Co | Respirator and a disposable pre-filter |
-
1964
- 1964-04-13 US US359353A patent/US3266490A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610624A (en) * | 1947-06-04 | 1952-09-16 | Mine Safety Appliances Co | Pocket respirator |
US2852023A (en) * | 1956-11-06 | 1958-09-16 | Mine Safety Appliances Co | Closed circuit breathing apparatus |
US3142549A (en) * | 1961-10-31 | 1964-07-28 | Electric Storage Battery Co | Respirator and a disposable pre-filter |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4090511A (en) * | 1977-03-23 | 1978-05-23 | Mine Safety Appliances Company | Mouthpiece valve for escape breathing apparatus |
DE2826620A1 (en) * | 1978-06-19 | 1979-12-20 | Auergesellschaft Gmbh | NOSE CLAMP FOR BREATHING UNITS |
US4452240A (en) * | 1981-10-05 | 1984-06-05 | E. D. Bullard Company | Respiratory protection apparatus |
US4926853A (en) * | 1988-01-21 | 1990-05-22 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Gas mask nose occluder |
US5533504A (en) * | 1994-09-13 | 1996-07-09 | Stamos; Louis | Apparatus for controlling air flow through nasal passages |
US20040025878A1 (en) * | 2000-07-26 | 2004-02-12 | Duxbury James Neil | Personal respirator |
US6971386B2 (en) * | 2000-07-26 | 2005-12-06 | James Neil Duxbury | Personal respirator |
US20030075173A1 (en) * | 2001-10-24 | 2003-04-24 | Daniel Shahaf | Inhalation protection apparatuses |
US20040079058A1 (en) * | 2001-10-26 | 2004-04-29 | Mcgahey Harry V. | Window biological and chemical contamination filter |
US6818035B2 (en) * | 2001-10-26 | 2004-11-16 | Mcgahey, Jr. Harry V. | Window biological and chemical contamination filter |
US7000611B2 (en) * | 2002-03-26 | 2006-02-21 | Klemperer Walter G | Mouthpiece, nasal seal, head appliance, apparatus, and methods of treating sleep apnea |
US20030183227A1 (en) * | 2002-03-26 | 2003-10-02 | Klemperer Walter G. | Mouthpiece, nasal seal, head appliance, apparatus, and methods of treating sleep apnea |
WO2005000412A1 (en) * | 2003-06-25 | 2005-01-06 | Johannes Alexander Paulus Paul | Respiratory protection device |
US20070101990A1 (en) * | 2005-11-09 | 2007-05-10 | Respan Products, Inc. | Disposable mask assembly with exhaust filter and method of assembling same |
US7559323B2 (en) * | 2005-11-09 | 2009-07-14 | Respan Products, Inc. | Disposable mask assembly with exhaust filter |
US20090250060A1 (en) * | 2005-11-09 | 2009-10-08 | Respan Products, Inc. | Disposable mask assembly with exhaust filter and valve disc and method of assembling same |
US8342179B2 (en) | 2005-11-09 | 2013-01-01 | Respan Products, Inc. | Disposable mask assembly with exhaust filter and valve disc and method of assembling same |
US20110171873A1 (en) * | 2008-09-10 | 2011-07-14 | Vallejo Carl J | Entertaining nose clasp apparatus |
US8562384B2 (en) * | 2008-09-10 | 2013-10-22 | Carl J. Vallejo | Entertaining nose clasp apparatus |
US20140017968A1 (en) * | 2008-09-10 | 2014-01-16 | Carl J. Vallejo | Entertaining nose clasp apparatus |
US9126123B2 (en) * | 2008-09-10 | 2015-09-08 | Carl J Vallejo | Entertaining nose clasp apparatus |
US20100190126A1 (en) * | 2009-01-23 | 2010-07-29 | Hyo-Sang Park | Nasal and maxillary growth enhancer |
US10688324B2 (en) * | 2018-03-23 | 2020-06-23 | Global Esprit Inc. | Nose clip structure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3266490A (en) | Pocket respirator | |
US4549543A (en) | Air filtering face mask | |
US9993668B2 (en) | Face mask assembly | |
US6758212B2 (en) | Personal emergency breathing system | |
CN106267614B (en) | Have exhaust valve on nose cup removes micronic dust ventilator | |
US6134716A (en) | Disposable smoke mask with replaceable filter | |
KR101340226B1 (en) | Respiratory protection device that has rapid threaded clean air source attachment | |
US4494538A (en) | Mask assembly | |
US4573464A (en) | Filter respirator for protection against smoke and toxic gases | |
US5005568A (en) | Isolation valve | |
US20030154983A1 (en) | Personal air filtering device | |
US2843122A (en) | Breathing mask | |
CN111135492A (en) | Filter part for filtering air and mask with filter part, with filter being easy to replace | |
US11266861B2 (en) | Face mask assembly | |
WO2003013657A1 (en) | Respirator | |
US20170050058A1 (en) | Mouthheld filter apparatus | |
US4361146A (en) | Filtering respirator | |
US5226412A (en) | Emergency respirator | |
KR20200054942A (en) | Anti-pollution face mask | |
US2791216A (en) | Respiratory masks | |
US2610624A (en) | Pocket respirator | |
US3109425A (en) | Respirator speaking diaphragm and exhalation valve unit | |
US3262447A (en) | Respirator for laryngectomies | |
US535718A (en) | Respirator | |
CN111135495A (en) | Discharge valve for mask, mask with the discharge valve, and strap part of the mask |
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 |