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Title: US4969457: Body fluids barrier mask
[ Derwent Title ]

Country: US United States of America

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6 pages

 
Inventor: Hubbard, Vance M.; Bedford, TX
Brunson, Welton K.; Bedford, TX
Caldwell, Darrell S.; Bedford, TX

Assignee: Tecnol, Inc., Forth Worth, TX
other patents from TECNOL, INC. (564730) (approx. 28)
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Published / Filed: 1990-11-13 / 1989-09-29

Application Number: US1989000415044
IPC Code: Advanced: A41D 13/11; A62B 18/08; A62B 23/02; B01D 39/08;
IPC-7: A62B 7/10; A62B 17/00; A62B 18/00;

ECLA Code: A62B23/02A; A41D13/11B2; A41D13/11D; A62B18/08; B01D39/16B4;

U.S. Class: Current: 128/206.12; 128/206.13; 128/206.19;
Original: 128/206.12; 128/206.19; 128/206.13;

Field of Search: 128/206.12,206.13,206.14,206.19,206.21,206.22,863,201.17,206.15,206.16,206.17,206.18 002/206

Priority Number:
1989-09-29  US1989000415044
1987-10-02  US1987000104807

Abstract:     A face mask (10) is provided for covering the mouth and nose of a wearer (14). The mask (10) prevents the passage of liquid from external to the mask to the face of the wearer (14). The mask (10) has four layers including a special low density polyethylene barrier (26). The barrier (26) prevents the passage of liquid in at least one direction while freely allowing the passage of gases in both directions.

Attorney, Agent or Firm: Baker & Botts ;

Primary / Asst. Examiners: Burr, Edgar S.; Asher, Kimberly L.
Maintenance Status: CC Certificate of Correction issued

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Related Applications:
Application Number Filed Patent Pub. Date  Title
US1987000104807 1987-10-02       


       
Parent Case:

--RELATED APPLICATION
    This is a divisional application of pending application Ser. No. 07/104,807, filed Oct. 2, 1987 and entitled "Body Fluids Barrier Masks".

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First Claim:
Show all 3 claims		 What is claimed is:     1. A method of making a face mask impervious to body liquids, comprising the steps of:
  • dimensioning a mask portion to cover the nose and mouth of a wearer;
  • forming said mask portion of layers of material at least one of which is a barrier layer pervious to gases yet impervious to body liquids said barrier layer formed of perforated low density polyethylene having the perforations sized to permit gas flow and to prevent the flow of body liquids therethrough;
  • placing a layer of chemically coated cover stock over one side of said barrier layer; and
  • connecting attachment means to said mask portion providing removable attachment of the mask to the face of the wearer.
    •


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Description: Show description

Forward References: Show 62 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (62)   |   Backward references (22)   |   Citation Link

Buy
PDF		 Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 4pp US1987922* 1935-01 Blatt    
Get PDF - 3pp US2029947* 1936-02 Schmitt et al.    
Get PDF - 3pp US2116241* 1938-05 Heumann    
Get PDF - 3pp US2149067* 1939-02 Otero    
Get PDF - 3pp US2916037  1959-12 Hansen   Disposable diaper
Get PDF - 5pp US3170461* 1965-02 Watts, Jr.    
Get PDF - 5pp US3288138* 1966-11 Sachs    
Get PDF - 5pp US3490447  1970-01 Jackson   SURGICAL MASK
Get PDF - 4pp US3603315  1971-09 Becker  American Hospital Supply Corporation SURGICAL FACE MASK
Get PDF - 6pp US3613678  1971-10 Mayhew  Minnesota Mining and Manufacturing Company FILTRATION MASK
Get PDF - 5pp US3884227  1975-05 Lutz et al.  Blessings Products, Incorporated Disposable surgical mask
Get PDF - 10pp US3888246  1975-06 Lauer  Johnson & Johnson Anti-fog surgical face mask
Get PDF - 7pp US3929135  1975-12 Thompson  The Procter & Gamble Company Absorptive structure having tapered capillaries
Get PDF - 6pp US3989867  1976-11 Sisson  The Procter & Gamble Company Absorptive devices having porous backsheet
Get PDF - 9pp US4215682  1980-08 Kubik et al.  Minnesota Mining and Manufacturing Company Melt-blown fibrous electrets
Get PDF - 5pp US4323063  1982-04 Fisichella   Medical face mask
Get PDF - 8pp US4419993  1983-12 Petersen  Minnesota Mining & Manufacturing Company Anti-fogging surgical mask
Get PDF - 6pp US4510931  1985-04 Henderson et al.  W. L. Gore & Associates, Inc. Barrier for use during cardiopulmonary resuscitation
Get PDF - 6pp US4600002  1986-07 Maryyanek et al.  American Optical Corporation Disposable respirator
Get PDF - 5pp US4635628  1987-01 Hubbard et al.  Tecnol, Inc. Surgical face mask with improved moisture barrier
Get PDF - 9pp US4662005  1987-05 Grier-Idris  Kimberly-Clark Corporation Conformable surgical face mask
Get PDF - 8pp US4684570  1987-08 Malaney  Chicopee Microfine fiber laminate
  * some details unavailable
       
Foreign References: None

Other Abstract Info: DERABS C90-170875

Other References:
  • "The Condensed Chemical Dictionary", ©1961, pub. by Reinhold Publishing Corp., N.Y., Sixth Ed., pp. 826, 827, 910-911.


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