Body Of Mask, Other Than Viewing Means, Formed Of Porous Filter Material (e.g., Surgical Mask Formed Entirely Of Cloth, Etc.) Patents (Class 128/206.19)
  • Patent number: 10357069
    Abstract: A gauze mask with folding lines capable of enabling the gauze mask to be folded into a flat package or unfolded into a three dimensional configuration, includes two folding portions connected to a main covering portion and two main pieces. Each of the two folding portions includes at least three folding pieces, when in use, the folding pieces will be stretched out and prop up one another, which provides a better support and enables to the gauze mask to be unfolded into a three dimensional structure. When unfolded, the gauze mask can obtain a strong support and three dimensional sense.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: July 23, 2019
    Inventor: Ronald Tuan
  • Patent number: 10273612
    Abstract: Spunbonded electret webs comprising polylactic acid fibers, in which at least some of the polylactic acid fibers are meltspun, drawn, charged fibers that include charging additive; and, methods of making such fibers and webs.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: April 30, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Liming Song, Sachin Talwar, John D. Stelter, John M. Sebastian, Nathan E. Schultz, Eric M. Moore, Fuming B. Li, Andrew R. Fox, Michael R. Berrigan, Zackary J. Becker
  • Patent number: 9826786
    Abstract: A horizontal flat-fold, filtering face-piece respirator 10 that includes a harness 14 and a mask body 12 that has a front surface, a first perimeter 24a, and a longitudinal axis 34. A nose clip 30 is secured to the mask body 12 centrally and adjacent to the first perimeter 24a of the mask body 12. An indicia 32 that is visible on the front surface of the mask body 12 in a vicinity of the nose clip 30 is provided to highlight a longitudinal axis of symmetry of the nose clip. The use of such an indicia, visible from the mask body front surface, enables a user to readily identify where the nose clip may be bent to prepare it for donning by the wearer.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 28, 2017
    Assignee: 3M Innovative Properties Company
    Inventor: Dean R. Duffy
  • Patent number: 9744329
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: August 29, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Patent number: 9723880
    Abstract: The apparatus prevents the spread of airborne diseases. An outer sleeve has a passage with a filter element. A user grabs the outer sleeve and coughs or sneezes into the passage. The filter element traps airborne pathogens within the outer sleeve. The outer sleeve thus allows a user to handle the device without being contaminated by the aerosolized emissions emitted during coughing or sneezing within the passage.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: August 8, 2017
    Inventor: John W. Macey, Jr.
  • Patent number: 9706800
    Abstract: A method for making face masks includes: advancing continuously a longitudinal sheet material that can be divided into a plurality of mask sheets each of which has two opposite longitudinal ends and two opposite transverse ends; cutting the sheet material at intervals to form the mask sheets; providing a plurality of strips each of which has two longitudinally opposite strip ends and each of which is folded to form a pleat between the two strip ends thereof; and bonding the two strip ends of each of the strips to one of the opposite transverse ends of a respective one of the mask sheets to form an ear loop. A structure of the face mask is also disclosed.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: July 18, 2017
    Assignee: Kang Na Hsiung Enterprise Co., Ltd.
    Inventors: Jung-Chi Tai, Ho-Hsi Yang, Chien-Hsiang Lin, Chien-Chung Su
  • Patent number: 9684105
    Abstract: A polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film includes a polyester base film and a primer layer formed on at least one surface of the polyester base film. The polyester film contains about 0.1 wt % to about 5 wt % of a UV absorbent. In addition, a liquid crystal display includes the polarizing plate. A method of fabricating a polarizing plate includes preparing a multilayer film containing about 0.1 wt % to about 5 wt % of a UV absorbent, stretching the multilayer film to about 2 to about 10 times its initial length in a transverse direction (TD) to prepare a polyester film, and attaching the polyester film to at least one surface of a polarizer. The multilayer film comprises a polyester base film and a primer layer on at least one surface of the polyester base film.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: June 20, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kwang Ho Shin, Eun Su Park, Dong Yoon Shin, Hae Ryong Chung
  • Patent number: 9662601
    Abstract: The nonwoven fabric is a blended filament nonwoven fabric including a blend of two types of filaments, wherein the two types of filaments are constituted of thermoplastic resins different from each other, an average fiber diameter obtained by dividing the total value of fiber diameters of the filaments present in the nonwoven fabric by the number of the constituent filaments is 0.1 to 10 ?m, and the nonwoven fabric has a specific volume of 12 cm3/g or more; the blended filament nonwoven fabric, wherein the ratio of the number of constituent filaments having fiber diameters of 0.1 to 3 ?m is 50% or more of the filaments constituting the nonwoven fabric, and the ratio of the number of constituent filaments having fiber diameters exceeding 3 ?m is 50% or less of the filaments constituting the nonwoven fabric; or the nonwoven fabric is produced by a melt-blowing process.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: May 30, 2017
    Assignees: JNC CORPORATION, JNC FIBERS CORPORATION
    Inventors: Yasushi Matsuda, Junji Iwata, Mitsuru Kojima, Takafumi Ito
  • Patent number: 9636475
    Abstract: A respiratory mask is provided having an outer shell coupled to a cushion for the delivery of a gas to a user. The cushion of the respiratory mask has at least one pleat disposed in the cushion in order to provide varying degrees of flexibility and support about the cushion.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: May 2, 2017
    Assignee: RIC INVESTMENTS, LLC
    Inventors: Peter Chi Fai Ho, Derrick Andrews
  • Patent number: 9481961
    Abstract: A formulation is provided which comprises at least one phenolic compound in an amount of about 0.5 to about 1.2% of the mass of the formulation; at least one fragrance in an amount of about 0.3 to about 1.0% of the mass of the formulation; and at least one alcohol in an amount of about 90 to about 99% of the mass of the formulation. Said formulation is surfactant free and being capable of rendering anti-microbial finish to fabrics. And also, a process for preparing a fabric with anti-microbial finish is provided.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: November 1, 2016
    Assignee: RELIANCE INDUSTRIES LTD.
    Inventors: Anand Parekh, Satya Pal Gomber, Sujit Kumar Barik
  • Patent number: 9384383
    Abstract: For surreptitiously stymieing a recognition of facial characteristics by a facial recognition system using a camera, a user wears an object in front of at least one eye, where the object includes a light displacer. The light displacer optically displaces light radially relative to the original light direction, but still parallel to the original light direction so that a view by the eye through the light displacer is not distorted. With the light displacer, there is an apparent position of the eye perceived by the camera which is shifted relative to other features of the face and relative to the actual position of the eye. Consequently, an image of the face obtained by the camera locates the eye at the apparent position which is substantially different from an image which would have been obtained with the actual position of the eye, so that the facial recognition system is stymied.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: July 5, 2016
    Inventor: J. Stephen Hudgins
  • Patent number: 9314056
    Abstract: A foldable breathing mask formed with a deep-drawn mask body and sufficiently rigid so as to retain its shape and including at least one fold line for a storage folding of the mask body is a predefined manner.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: April 19, 2016
    Assignee: Moldex-Metric, Inc.
    Inventors: Roman Skov, Torben Skov, Heinz Wandel, Frank Kern
  • Patent number: 9205366
    Abstract: A system (10) and method for manufacturing ophthalmic devices, in particular contact lenses or intraocular lenses, the system comprising: at least one injection molding machine for manufacturing a cup bottom part (202) and cup top part (204) to form a cast mold, a cooling station (30), an injection assembly (120) arranged for injecting an amount of monomeric material into the cup bottom part, a curing assembly (130), a first optical inspection assembly (140) for determining at least one first optical cup part parameter, a second optical inspection assembly (150) for determining at least one optical combination parameter of the combination of the cured monomeric material formed into a lens and the cup part that bears the lens, and an electronic control (14) provided with a calculation module for determining at least one optical lens parameter of the lens on the basis of the cup part parameter and the combination parameter.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: December 8, 2015
    Assignee: HELSATECH GMBH
    Inventors: Peter Fick, Rainer Ernst, Jessica Schneider, Jörg Weber
  • Patent number: 9027554
    Abstract: A filtering face mask 10 that has a harness 14 and a mask body 12. The mask body 12 includes a filtering structure 18 and a cup-shaped shaping layer 20 where the latter comprises a closed cell foam layer that has a plurality of fluid permeable openings 22 located in it. The openings 22 are surrounded by recessed regions 31. The filtering structure 18 does not make substantial contact with the shaping layer 20 at the recessed regions. The shaping layer 20 makes contact with the wearer's face at the mask body perimeter 19 when the respirator is being worn. The use of a foam shaping layer that has openings surrounded by recessed regions provides sufficient structural integrity or stiffness to prevent mask body collapse during respirator use while also exhibiting a low pressure drop and rapid fluid distribution of air within the mask to allow for low breathing resistance and extended wearer comfort.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: May 12, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Jin-Ho Lee, Jungchul Moon, Kangsoo Park, Dong-Sun Noh
  • Publication number: 20150110843
    Abstract: Fibrous antimicrobial materials for use in structures and barrier applications, such as face masks and wound dressings, have been developed from antimicrobial polymeric materials. The fibrous antimicrobial materials also are particularly suitable for use in air and water filtration. The antimicrobial polymeric materials are prepared from solid solutions of antimicrobial bisguanide compounds blended with certain thermoplastic polymers. The antimicrobial polymeric materials may be extruded into fibers or used in the particulate form for preparation of the nonwoven antimicrobial materials. The antimicrobial bisguanide compound, such as chlorhexidine, are distributed at the molecular level within at least one thermoplastic polymer, such as a polyolefin in which the antimicrobial bisguanide compound is soluble, to form a miscible blend. Methods for their formation and use also are provided.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Inventors: Jan W. Gooch, Thomas J. Steimer, SR.
  • Patent number: 8978655
    Abstract: A respirator comprises: a nose and mouth covering porous filter body and a flexible restraining device arranged so that the body may pivot in its vertical plane of symmetry about its nose contact portion, and the restraining device attaches to the body at positions where its restraining force imparts torque in the body about said nose contact portion so that the chin contact portion of said body bears against the user's chin. In use, the resulting chin contact force may be less than the opposing user expiration force on the filter body, so the periphery of the chin contact portion may separate from the user's chin during expiration to benefit user comfort and mitigate eyeglass condensation.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: March 17, 2015
    Inventors: John Hincks Duke, Ritu Goel
  • Patent number: 8967147
    Abstract: A filtering face-piece respirator 10 that has a harness 14 and a mask body 12. The mask body 12 includes a support structure 16 and a filtering structure 18. The support structure 16 contains an auxetic mesh 20 that has been molded into an intended cup-shape configuration, and the filtering structure 18 contains a filtration layer 42 for removing contaminants from the ambient air. The use of an auxetic mesh 20 in the support structure 16 provides more uniformly-sized openings 26 in the mesh 20 and reduces opportunities for mesh overlapping and mesh distortion.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: March 3, 2015
    Assignee: 3M Innovative Properties Company
    Inventor: Philip G. Martin
  • Publication number: 20150031532
    Abstract: The present invention relates to stabilized channel type cyclodextrin crystals. In particular the present invention relates to a method for producing stabilized channel type cyclodextrin crystals, stabilized channel type cyclodextrin crystal comprising a stabilizer, uses of said stabilized crystals and products comprising stabilized channel type cyclodextrin crystals.
    Type: Application
    Filed: March 13, 2013
    Publication date: January 29, 2015
    Applicant: Amphidex A/S
    Inventors: Kim Lambertsen Larsen, Ronnie Nielsen, Thuy Thanh Do
  • Publication number: 20150013681
    Abstract: Apparatus and method to mitigate the spread of respiratory emission of a sneeze are disclosed. The apparatus includes a spacer component and at least one filtration component. The at least one filtration component is disposed atop the spacer component. The spacer component includes a corrugated sheet, which forms a plurality of directional flutes to direct filtered air out of the apparatus. The least one filtration component filters the respiratory emission to produce the filtered air. In accordance with the method, the respiratory emission is filtered through at least one filtration component to produce filtered air, and the filtered air is directed through a spacer component comprising a corrugated sheet, which forms a plurality of directional flutes that direct the filtered air out of the apparatus.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 15, 2015
    Inventor: Lee Stockhamer
  • Patent number: 8910634
    Abstract: A stress deformable and sealed breathing mask that includes an air permeable rectilinear mask body having at least one layer of air filtering material and a resilient sealing strip at an upper edge of the mask body for sealing engagement with a user's face. An upper attachment strap is in a laced engagement with the mask body and the resilient sealing strip such that tightening of the upper attachment strap about a user's head causes the resilient sealing strip to resiliently deform substantially to the contour of the user's face in the bridge area of the user's nose. A lower attachment strap secures the bottom of the mask body against a portion of the user's face below the user's mouth.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: December 16, 2014
    Inventors: Jianchun Lu, Fengyan Qu, Susan X. S. Ge
  • Patent number: 8905034
    Abstract: Ergonomic protective air filtration devices and methods for manufacturing the same are disclosed herein. An ergonomic protective air filtration device includes a stack of at least two layers of an air permeable material, the stack forming a body, a periphery, and a back; a plurality of intersecting three-dimensional V-shaped pleats extending from the periphery and into the stack of layers, so the back of the device defines a breathing chamber adapted to cover a mouth and a nose of the wearer; and a retaining means engaging the body of the device to secure the device to a face of the wearer and to create the breathing chamber. The ergonomic protective air filtration device provides protection against contaminated droplets, fluid splashes, solid particulates, pathogenic microorganisms, or aerosoled air pollutions.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: December 9, 2014
    Assignee: Salutaris LLP
    Inventors: Konstantin Goranov, Albena Milencheva
  • Patent number: 8881729
    Abstract: A horizontal flat-fold, filtering face-piece respirator 10 that includes a harness 14 and a mask body 12 that has a front surface, a first perimeter 24a, and a longitudinal axis 34. A nose clip 30 is secured to the mask body 12 centrally and adjacent to the first perimeter 24a of the mask body 12. An indicia 32 that is visible on the front surface of the mask body 12 in a vicinity of the nose clip 30 is provided to highlight a longitudinal axis of symmetry of the nose clip. The use of such an indicia, visible from the mask body front surface, enables a user to readily identify where the nose clip may be bent to prepare it for donning by the wearer.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: November 11, 2014
    Assignee: 3M Innovative Properties Company
    Inventor: Dean R. Duffy
  • Publication number: 20140290662
    Abstract: The present invention relates to a filter material for respirator masks. The filter material comprises a filter material layer that is pleated so as to form a plurality of folds, said filter material layer comprising a filter layer and a first netting layer. The invention is characterized in that the filter material layer comprises a second netting layer disposed on the filter layer on the side opposite to said first netting layer. The invention additionally relates to a respirator mask comprising such a filter material.
    Type: Application
    Filed: February 27, 2014
    Publication date: October 2, 2014
    Applicant: MOLDEX-METRIC, INC.
    Inventor: Frank Kern
  • Patent number: 8839788
    Abstract: Respirator attachment components are described and include a polymeric rigid respirator attachment body portion having a first surface and a second surface and a silicone sealing element chemically bonded to the first or second surface.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: September 23, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: James R. Betz, Sean M. Burke, Paul J. Flannigan
  • Patent number: 8828129
    Abstract: The two-stage air filter is formed of a nonwoven glass fiber first or inlet filter element and a second or outlet filter element formed of nonwoven fiber. The outlet filter element is preferably formed of either polyester material, or a blend of polyester and cotton fiber material. The first or inlet filter element is coarser than the second or outlet filter element, with the first element serving to capture larger particles while allowing smaller particles to pass therethrough to be captured by the finer second filter element. The two filter elements have a continuous and unbroken, homogeneous interface therebetween, with the attachment of the two filter elements with one another being solely at their mutual peripheries by a peripheral frame. Additional air freshening and cleaning, deodorizing, odor neutralizing, scent applying, fungicidal, bactericidal, and/or germicidal chemicals or materials may be applied to either or both filter elements.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: September 9, 2014
    Inventors: Giovanni D. Volo, Salvatore R. Carabetta
  • Publication number: 20140182593
    Abstract: A filtering facepiece respirator 10 that includes a harness 14 and a mask body 12 that has a filtering structure 16 that contains one or more layers of filter media 62 and that has a perimeter 24. The mask body also has first and second flanges 30a, 30b located on opposing sides of the filtering structure 16. The first and second flanges 30a, 30b each have a leading edge 33 and are each folded inwardly in contact with the filtering structure 16. The in-contact configuration exists when the mask body 12 is open in an in-use configuration. The leading edge 33 of each flange 30a, 30b is configured to match the mask body perimeter 24 when the flanges 30a, 30b are folded inwardly in contact with the filtering structure 16.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Dean R. Duffy
  • Patent number: 8678002
    Abstract: A facial mask for use in decreasing the transmission of one or more than one human pathogen to and from a human wearer of the facial mask, the facial mask comprising a facepiece; where the facepiece comprises three or more than three layers; where one or more than one of the three or more than three layers comprises a fabric comprising one or more than one binding substance comprising one or more than one human pathogen binding group for chemically attaching the human pathogen to the binding substance; where the fabric further comprises one or more than one type of multivalent metallic ion or metallic salt; and where one or more than one of the three or more than three layers comprises a heat-moldable fabric.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: March 25, 2014
    Assignee: Filligent Limited
    Inventors: Neal G. Stewart, Lok Yuen Lo, Francis Chi Nan Lau, Dacey J. Ryan, Reid W. von Borstel
  • Patent number: 8640704
    Abstract: A flat-fold filtering face piece respirator 10 that comprises a mask body 12 that has a transversely-extending line of demarcation 22 and a longitudinal axis 34. First and second weld patterns 32a, 32b are disposed above and not traversing the line of demarcation on each side of the longitudinal axis 34, respectively. Third and fourth weld patterns 32c, 32d are disposed below and not crossing the line of demarcation 22 on each side of the longitudinal axis 34, respectively. Each of the first, second, third, and fourth weld patterns 32a-32d is a two-dimensional enclosed pattern. This combined weld patterns can provide a mask body that exhibits crush resistance without the need for additional or heavier layers, which may cause higher pressure drops across the filtering structure.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: February 4, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Scott A. Spoo, Dean R. Duffy, Nhat Ha Nguyen
  • Patent number: 8622059
    Abstract: A face mask for reducing or eliminating fogging of eye wear worn by a user of the face mask is provided. The face mask may include a body portion that has an outer surface and an oppositely disposed inner surface. The face mask may also have an absorbent element that may be located on at least one of the surfaces of the body portion. The absorbent element may be capable of absorbing at least 3.5 grams of water and may act to absorb moisture and/or condensation due to human respiration and/or perspiration.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: January 7, 2014
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Angela M. Kleman
  • Patent number: 8573199
    Abstract: A respiratory mask includes a mask body with a perimeter. The mask has a use position wherein the mask body covers at least the mouth and nose and the perimeter is in contact with the face surrounding at least the mouth and nose. At least one ultrasonic sensor is supported on the mask body in detecting proximity to the perimeter. The ultrasonic sensor is operable to detect ultrasound. The ultrasonic sensor allows leakage around the perimeter of the mask body to be detected.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: November 5, 2013
    Assignee: Centers for Disease Control and Prevention
    Inventors: William Porter King, Jonathan Szalajda
  • Patent number: 8528560
    Abstract: A respirator 10 that has a harness 14 and a mask body 12 that is joined to the harness 14. The mask body 12 includes a filtering structure 16 that may contain a plurality of layers of nonwoven fibrous material 58, 60, 62. The layers of nonwoven fibrous material 58, 60, 62 have a thickness A and are welded together by at least two parallel weld lines 34?, 34? that are spaced at 0.5 to 6 times A. A mask body that uses parallel weld lines may exhibit better resistance to collapse and may be manufactured at faster speeds than similar structures which use single weld lines of comparable width.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: September 10, 2013
    Assignee: 3M Innovative Properties Company
    Inventor: Dean R. Duffy
  • Publication number: 20130139823
    Abstract: A filtering face mask 10 that has a harness 14 and a mask body 12. The mask body 12 includes a filtering structure 18 and a cup-shaped shaping layer 20 where the latter comprises a closed cell foam layer that has a plurality of fluid permeable openings 22 located in it. The openings 22 are surrounded by recessed regions 31. The filtering structure 18 does not make substantial contact with the shaping layer 20 at the recessed regions. The shaping layer 20 makes contact with the wearer's face at the mask body perimeter 19 when the respirator is being worn. The use of a foam shaping layer that has openings surrounded by recessed regions provides sufficient structural integrity or stiffness to prevent mask body collapse during respirator use while also exhibiting a low pressure drop and rapid fluid distribution of air within the mask to allow for low breathing resistance and extended wearer comfort.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 6, 2013
    Inventors: Jin-Ho Lee, Jungchul Moon, Kangsoo Park, Dong-Sun Noh
  • Patent number: 8439038
    Abstract: A respirator including a collapse-resistant means for resisting collapse of the respirator main body due to respiration of a user during use of such a respirator is disclosed. Specifically, in various embodiments, the collapse-resisting means may be a deflection member, a stiffening material, fastening components configured to apply an outward-facing deflection force when the respirator is worn, or any combination thereof. Additionally, a dual exhalation vent assembly adapted for use in a collapse resisting respirator is also disclosed.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: May 14, 2013
    Assignee: Kimberly-Clark Worldwide, inc.
    Inventors: Eric Steindorf, Debra Nell Welchel, Craig Miles, Sara Stephan
  • Patent number: 8430100
    Abstract: A face mask has upper and lower portions made of mask material. The upper and lower portions are joined together at side portions and a front portion. The side portions converge as the side portions extend from a face edge to the front portion. The mask has sections between the face edge and the front portion, with each section having a head retainer, a nose strip or both. The sections are divisible from each other along separation zones or bands that extend between the side edges. The size of the mask can be reduced by removing one or more sections, leaving one or more sections that incorporate the front edge and the shortened side edges.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 30, 2013
    Assignee: Prestige Ameritech Ltd.
    Inventors: George D. Reese, Michael L. Bowen
  • Patent number: 8375950
    Abstract: A personal respiratory protection device that comprises a multilayer body including a stiffening layer, filter media layer(s) and inner or outer cover layer(s). The mask body includes a central portion between first and second portions, the central portion being defined by a fold, bond, weld, seam, or combination thereof and having a width of about 160 to 220 mm and a height of about 30 to 110 mm. The device is capable of being folded flat for storage with the first portion in at least partial face-to-face contact with a surface of the central portion and the second portion contacting a surface of the first portion. When unfolded for use the device is capable of forming a cup-shaped off the face air chamber over the nose and mouth of a wearer.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: February 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger, James F. Dyrud
  • Publication number: 20130037032
    Abstract: A mask that can prevent spaces from forming between a mask body and a wearer's face. In the mask, the top base and bottom base of a left ear loop are joined to the mask body at a top joining part and bottom joining part, respectively. Also, the top base and bottom base of a right ear loop are joined to the mask body at a top joining part and bottom joining part, respectively. In the top joining parts, joining part bottoms, which are at the bottom in a second direction, are shifted away from rims in a first direction with respect to joining part tops, which are at the top in the second direction.
    Type: Application
    Filed: February 18, 2011
    Publication date: February 14, 2013
    Inventors: Akira Shibata, Eisuke Takeda
  • Patent number: 8365732
    Abstract: A wearable protective device (100) including an eye shield (102), a holder (106) for a removable breathing filter (400), and an arrangement (104, 118) for fixing the device, in use, to a wearer's head. The eye shield and the holder are integrated or permanently connected together.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: February 5, 2013
    Assignee: JSP Ltd.
    Inventor: Clive Johnstone
  • Patent number: 8360067
    Abstract: Face masks that are provided in a generally flat configuration and are capable of being expanded to a cup-shaped configuration. Such masks include at least one porous layer that includes at least one pleat and that is capable of being expanded by at least partially unfolding the at least one pleat. The mask further includes at least one stiffening element that comprises at least one engaging feature. Upon expanding the porous layer, the engaging feature engages with the porous layer so as to enhance the ability of the mask to maintain the expanded, cup-shaped configuration.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: January 29, 2013
    Assignee: 3M Innovative Properties Company
    Inventor: Dean R. Duffy
  • Publication number: 20120318273
    Abstract: A method of making a face mask is disclosed. The method includes providing an elastic nonwoven web continuous in a machine direction, the elastic nonwoven web having a central lane extending in the machine direction; bonding a filtering web to the central lane of the elastic nonwoven web to provide a layered web, the filtering web being continuous in the machine direction and having a cross-web width that is substantially the same as the cross-web width of the central lane; and stamping a face mask into the layered web. A face mask and a continuous layered web having a plurality of face masks disposed thereon are also disclosed.
    Type: Application
    Filed: March 1, 2011
    Publication date: December 20, 2012
    Inventor: Alexander C. Tsuei
  • Patent number: 8251065
    Abstract: The present invention relates to a four-sided dustproof mask including: an upper filter adapted to surround a wearer's nose area; a lower filter adapted to surround the wearer's chin area; and a protruded center filter adapted to attach the upper filter and the lower filter thereto in such a manner as to make the both ends of the upper filter and the lower filter correspond to center points formed at the both ends of a curved folding line dividing the protruded center filter into two sides, the curved folding line having a straight line portion having a predetermined length protrudedly extended from the center points thereof, whereby while the upper filter and the lower filter are being developed, the protruded center filter is protruded to a dome-like shape.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: August 28, 2012
    Assignee: Jangjung Industrial Corp.
    Inventor: Tae Gyu Kim
  • Publication number: 20120167891
    Abstract: An adjustable face mask having a body conforming substantially to the facial structure of a wearer. The face mask is provided with a neck shield and removable filter and novel air apertures providing a communication of forced air to the nose and mouth of a user. The face mask can optionally provide neck protection with a descending neck member.
    Type: Application
    Filed: January 3, 2011
    Publication date: July 5, 2012
    Inventor: John Smaller
  • Publication number: 20120160246
    Abstract: A filtering face-piece respirator 10 that comprises a mask body 12 and a harness 14 that is joined to the mask body 12. The mask body 12 includes a filter layer 30 and a nonwoven fibrous cover web 16. The fibrous cover web 16 is partially occluded and is generally parallel to and spaced from the filter layer 30 such that air passing through the cover web 16 can move freely between the cover web 16 and the filter layer 30 so that it can enter the filter layer 30 at essentially any available point over the filter layer surface 32. The inventive respirator is beneficial in that it can provide very good splash fluid and airborne contaminant protection while also exhibiting an extraordinary low pressure drop across the mask body during breathing.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 28, 2012
    Inventors: Nhat Ha T. Nguyen, John J. Rogers
  • Publication number: 20120160247
    Abstract: There is provided a splash resistant facemask having two outer splash layers adjacent each other on a side away from a wearer, a filter layer and an inside layer. None of the layers contains a repellent treatment. The facemask can pass a fluid splash resistance test, e.g. ASTM F-1862-05, wherein fluid is directed at the mask at a pressure of 160 mmHg.
    Type: Application
    Filed: May 4, 2011
    Publication date: June 28, 2012
    Inventors: Roger B. Quincy, III, Bryan James Stadelman, Elaine M. Namba, Catherine J. Turnbow
  • Patent number: 8182568
    Abstract: The two-stage air filter is formed of a nonwoven glass fiber first or inlet filter element and a second or outlet filter element formed of nonwoven fiber. The outlet filter element is preferably formed of either polyester material, or a blend of polyester and cotton fiber material. The first or inlet filter element is coarser than the second or outlet filter element, with the first element serving to capture larger particles while allowing smaller particles to pass therethrough to be captured by the finer second filter element. The two filter elements have a continuous and unbroken, homogeneous interface therebetween, with the attachment of the two filter elements with one another being solely at their mutual peripheries by a peripheral frame. Additional air freshening and cleaning, deodorizing, odor neutralizing, scent applying, fungicidal, bactericidal, and/or germicidal chemicals or materials may be applied to either or both filter elements.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: May 22, 2012
    Inventors: Giovanni D. Volo, Salvatore R. Carabetta
  • Patent number: 8176918
    Abstract: A three dimensional face mask comprises: a three dimensional cup, a three dimensional soft rubber washer, an elastic tape, and an anti-skid band; it is characterized in that: the three dimensional cup is made by hot pressing of multilayer of filtration material, the three dimensional soft rubber washer is provided with a soft nose cushion and is bonded to an outer periphery of the three dimensional cup by hot pressing, the anti-skid band is bonded to a lower edge of the three dimensional cup, the elastic tape has two ends symmetrically bonded to both sides of the three dimensional cup. The three dimensional non-woven face ensures a good air tightness against the face while leaving a large enough space between the three dimensional cup and the nose and mouth area to ensure conformable wearing, good filtration, making the wearer easy to breathe and talk.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: May 15, 2012
    Inventor: Mei-Sheng Teng
  • Patent number: 8171931
    Abstract: The present invention concerns a valve unit for a rebreather apparatus that recycles gas exhaled by a user. The valve unit includes a housing 5 with a first port for communication with a respiratory system of the user and a first inlet port 9 for breathable gas in said housing, a first exit port for exhausting gas from said housing into a flow channel, at least one separate second exit port 12 for exhausting gas form said housing 5 into an ambient environment, a second inlet port 13 for breathable gas connected to an open loop inlet valve 6 in said housing 5, and a valve body 4 in said housing 5 forming a valve for switching between two operating modes. The valve body 4 is formed as a barrel or cylinder with valve openings sealing against the housing 5, where the valve body 4 forms an internal cavity 18, alone or in combination with the housing 5, in connection with the port 10 for communication with a user. The valve 6 has an outlet in said cavity 18.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: May 8, 2012
    Assignee: Radikal AS
    Inventor: Lars Erik Frimann
  • Publication number: 20120090616
    Abstract: A mask placeable over the nose and mouth of a user for blocking out unpleasant odors. The mask has an air-permeable body with an inner surface shaped to fit over the nose and mouth and a strap for securing the mask in place over the user's face. An arrangement of pliable material is affixed to the inner surface of the mask at nostril level providing a method to secure a separate scent emitting object at the user's discretion.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 19, 2012
    Inventor: Robert Hanbury Means
  • Patent number: 8136524
    Abstract: A mask system includes a frame, cushion, cushion clip, swivel elbow, headgear and/or headgear clips that are configured for use in a clinical or hospital environment. One or more components of the mask system are configured to promote single patient use, e.g., by providing an age indicator and/or preventing disassembly and/or cleaning, etc.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: March 20, 2012
    Assignee: ResMed Limited
    Inventors: Anthony Michael Ging, David John Worboys, Gregory Scott Smart, Muditha Dantanarayana, John Michael Snow, Philip Thomas Stallard
  • Publication number: 20120060843
    Abstract: A pleated molded filtering face piece respirator to be worn upon the face of a wearer and for providing filtering including at least one layer of moldable flexible plastic material formed from openwork flexible plastic material for providing a plurality of perforations for allowing for the free passage of air through the openwork plastic. A layer of moldable filter material for filtering impurities in the air, the one layer of flexible plastic material formed from openwork flexible plastic material and the layer of filter material for filtering impurities in the air lying one on top of the other to form a moldable multilayer of flexible plastic material and filter material. The moldable multilayer of flexible plastic material and filter material are pleated into pleated material and molded to form the pleated filtering face piece respirator to a desired configuration where the one layer of openwork flexible plastic material forms a support layer to carry the layer of filter material.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 15, 2012
    Inventors: Mark Magidson, Crest Turdjian
  • Patent number: 8113201
    Abstract: A respirator including a collapse-resistant means for resisting collapse of the respirator main body due to respiration of a user during use of such a respirator is disclosed. Specifically, in various embodiments, the collapse-resisting means may be a deflection member, a stiffening material, fastening components configured to apply an outward-facing deflection force when the respirator is worn, or any combination thereof. Additionally, a dual exhalation vent assembly adapted for use in a collapse resisting respirator is also disclosed.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: February 14, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Eric Steindorf, Debra Nell Welchel, Craig Miles, Sara Stephan