US3563236A - Face pieces for protective masks - Google Patents

Face pieces for protective masks Download PDF

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Publication number
US3563236A
US3563236A US791830A US3563236DA US3563236A US 3563236 A US3563236 A US 3563236A US 791830 A US791830 A US 791830A US 3563236D A US3563236D A US 3563236DA US 3563236 A US3563236 A US 3563236A
Authority
US
United States
Prior art keywords
mask
face
rib
lens
sealing rib
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
Application number
US791830A
Other languages
English (en)
Inventor
Otto Henry Hansson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trelleborgs Gummifabriks AB
Original Assignee
Trelleborgs Gummifabriks AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Trelleborgs Gummifabriks AB filed Critical Trelleborgs Gummifabriks AB
Application granted granted Critical
Publication of US3563236A publication Critical patent/US3563236A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A62B18/02—Masks

Definitions

  • FACE PIECES FOR PROTECTIVE MASKS Face pieces for protective masks must sealingly engage the wearers face to make it impossible for the gas against which the wearer wishes to protect himself to penetrate into the space between the face and the face piece.
  • some kind of sealing means has been used hitherto, and this sealing means projects from the inner side of the face piece to engage the wearer's face.
  • the sealing means can have the shape of a hose which is deformed to a varying extent, thereby taking up variations in the shape of the face.
  • FIGS. 2-7 are sections on lines II-II, III-III, IVIV, V- V, VI-VI and VII-VII, respectively, in FIG. 1.
  • the face piece of the protective mask has an eye piece or lens 11 common to both eyes and consisting of some clear plastic material, e.g. acryl glass.
  • the lens I] is gas-tightly connected to the face piece in some suitable manner; in the embodiment illustrated the lens is glued into a groove provided in the face piece.
  • the face piece has a fastening device 12 for a protective filter (not shown) which is retained in the fastening device in some suitable manner. From the space of the fastening device rearwardly of the protective filter there extend two inlet passages 13 which open at the lower edge of the lens 11 so that all inhaling air has to flow in an upward direction over the inner side of the lens 11.
  • the mask of clairh 1 further having two outward bulges on said sealing rib at the edge thereof remote from said lens, said outward bulges approximately conforming to the arch of the broad curved portion of the frontal bone.
  • baffle is provided with at least one inhaling valve disposed therein, at least one inhaling passage communicating between said inhaling valve and the interior of the mask to permit filtered air which has passed over said eye lens to be inhaled by the wearer of the mask, and an outlet means in said mask for permitting passage of exhaled air to the atmosphere.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
US791830A 1968-02-15 1968-11-20 Face pieces for protective masks Expired - Lifetime US3563236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE197968 1968-02-15

Publications (1)

Publication Number Publication Date
US3563236A true US3563236A (en) 1971-02-16

Family

ID=20259183

Family Applications (1)

Application Number Title Priority Date Filing Date
US791830A Expired - Lifetime US3563236A (en) 1968-02-15 1968-11-20 Face pieces for protective masks

Country Status (7)

Country Link
US (1) US3563236A (fr)
AT (1) AT325423B (fr)
BE (1) BE725201A (fr)
CH (1) CH482447A (fr)
DK (1) DK119950B (fr)
FI (1) FI43264B (fr)
NL (1) NL154670B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680556A (en) * 1969-10-22 1972-08-01 U S Divers Co Diving helmet
US4296746A (en) * 1979-12-18 1981-10-27 Surgikos Disposable full-face surgical mask
US5689833A (en) * 1995-05-03 1997-11-25 Minnesota Mining And Manufacturing Company Eye shield for a respiratory mask
US6062222A (en) * 1997-08-14 2000-05-16 International Safety Instruments, Inc. Face mask for self contained breathing apparatus
US6626178B2 (en) * 2001-01-12 2003-09-30 Kirby Morgan Dive Systems, Inc. Full face mask with face seal and removable adaptors allowing full access to separate spaces
US20110004067A1 (en) * 2006-01-04 2011-01-06 Connie Marchek Surgical Retractors and Methods of Minimally Invasive Surgery
US7955257B2 (en) 2006-01-05 2011-06-07 Depuy Spine, Inc. Non-rigid surgical retractor
US8550995B2 (en) 2006-01-04 2013-10-08 DePuy Synthes Products, LLC Surgical access devices and methods of minimally invasive surgery
US8602984B2 (en) 2003-12-18 2013-12-10 DePuy Synthes Products, LLC Surgical retractor systems and illuminated cannulae
US20210402225A1 (en) * 2020-06-24 2021-12-30 Marina Hossain Protective head covering

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1096761A (en) * 1912-07-02 1914-05-12 Charles Scheer Mask.
GB425152A (en) * 1933-07-22 1935-03-07 Alfred Senft Improvements in gas-masks
GB425744A (en) * 1933-09-06 1935-03-20 Alfred Senft Improvements in gas-masks
DE669210C (de) * 1938-12-19 Bernh Draeger Gasschutzmaske
US3181531A (en) * 1960-04-01 1965-05-04 Pirelli Rubber gas mask

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE669210C (de) * 1938-12-19 Bernh Draeger Gasschutzmaske
US1096761A (en) * 1912-07-02 1914-05-12 Charles Scheer Mask.
GB425152A (en) * 1933-07-22 1935-03-07 Alfred Senft Improvements in gas-masks
GB425744A (en) * 1933-09-06 1935-03-20 Alfred Senft Improvements in gas-masks
US3181531A (en) * 1960-04-01 1965-05-04 Pirelli Rubber gas mask

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680556A (en) * 1969-10-22 1972-08-01 U S Divers Co Diving helmet
US4296746A (en) * 1979-12-18 1981-10-27 Surgikos Disposable full-face surgical mask
US5689833A (en) * 1995-05-03 1997-11-25 Minnesota Mining And Manufacturing Company Eye shield for a respiratory mask
US5720281A (en) * 1995-05-03 1998-02-24 Minnesota Mining And Manufacturing Company Eye shield for a respiratory mask
US6062222A (en) * 1997-08-14 2000-05-16 International Safety Instruments, Inc. Face mask for self contained breathing apparatus
US6626178B2 (en) * 2001-01-12 2003-09-30 Kirby Morgan Dive Systems, Inc. Full face mask with face seal and removable adaptors allowing full access to separate spaces
US8622897B2 (en) 2003-12-18 2014-01-07 DePuy Synthes Products, LLC Surgical methods and surgical kits
US8602984B2 (en) 2003-12-18 2013-12-10 DePuy Synthes Products, LLC Surgical retractor systems and illuminated cannulae
US10869657B2 (en) 2003-12-18 2020-12-22 DePuy Synthes Products, Inc. Surgical retractor systems and illuminated cannulae
US8517935B2 (en) 2006-01-04 2013-08-27 DePuy Synthes Products, LLC Surgical retractors and methods of minimally invasive surgery
US8550995B2 (en) 2006-01-04 2013-10-08 DePuy Synthes Products, LLC Surgical access devices and methods of minimally invasive surgery
US20110004067A1 (en) * 2006-01-04 2011-01-06 Connie Marchek Surgical Retractors and Methods of Minimally Invasive Surgery
US7955257B2 (en) 2006-01-05 2011-06-07 Depuy Spine, Inc. Non-rigid surgical retractor
US20110213207A1 (en) * 2006-01-05 2011-09-01 Depuy Spine, Inc. Non-rigid surgical retractor
US9254126B2 (en) 2006-01-05 2016-02-09 DePuy Synthes Products, Inc. Non-rigid surgical retractor
US20210402225A1 (en) * 2020-06-24 2021-12-30 Marina Hossain Protective head covering

Also Published As

Publication number Publication date
AT325423B (de) 1975-10-27
NL6817717A (fr) 1969-08-19
BE725201A (fr) 1969-05-16
DE1811142A1 (de) 1969-08-21
NL154670B (nl) 1977-10-17
CH482447A (de) 1969-12-15
DK119950B (da) 1971-03-15
FI43264B (fr) 1970-11-02

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