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 Title: |
US4856509:
Face mask and method
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Lemelson, Jerome H.; Metuchen, NJ 08840
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| Assignee: |
None
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| Published / Filed: |
1989-08-15
/ 1985-07-08
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| Application Number: |
US1985000752829
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| IPC Code: |
Advanced:
A41D 13/11;
A62B 23/02;
A62D 9/00;
IPC-7:
A62B 7/10;
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| ECLA Code: |
A62D9/00; A41D13/11B8B; A41D13/11M; A62B23/02A;
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| U.S. Class: |
Current:
128/206.19;
128/206.16;
D24/110.1;
Original:
128/206.19;
128/206.16;
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| Field of Search: |
128/139,205.77-265.29,206.19,206.12,206.11,206.13,206.18,253.29
055/279
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| Priority Number: |
| 1985-07-08 |
US1985000752829 |
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| Abstract: |
This invention relates to improvements in face masks, particularly for use in preventing the spread of disease such as colds, influenza and the like wherein a select portion or portions of such mask contain a disease or viral destroying chemical or biological agent, such as an acid or other material impregnating or forming part of a portion of the mask, such as that portion which extends across the nasal and mouth portions of the face of a wearer. In one form, the chemical or biological agent is in the form of a solid, such as a coating or a multitude of particles or crystals disposed against a porous portion of the mask or an insert which is attachable to and replaceable with respect to a mask frame or holding unit. In another form, such chemical is in the form of a liquid. In a third form, such chemical is disposed within a multitude of micro capsules which are ruptured or otherwise activated when the mask is used and which dispense their contents during such use and distribute the same throughout a select portion of the mask. In a particular form, the mask is formed of a unitary sheet of porous paper, cellular plastic or non-woven fiber with a portion of the outer layer thereof impregnated with a viral killing chemical, such as citric acid, to prevent passage of viral agents either from a person using the mask or from the atmosphere.
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| Attorney, Agent or Firm: |
Markva, Neil F. ;
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| Primary / Asst. Examiners: |
Hindenburg, Max; Reichle, K. M.
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
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| Family: |
Show 3 known family members
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First Claim:
Show all 25 claims |
I claim:
1. A face mask comprising:
- (a) a unitary mask base formed of a sheet material and shaped to be disposed across a portion of the face of a wearer in alignment with and surrounding the nose and mouth of the wearer of said mask,
- (b) said mask base including a central portion adapted to be aligned with the nose and mouth of the wearer,
- (c) said mask base being formed of a laminate of a plurality of layers of porous materials,
- (d) a disease germ killing agent means disposed within said central portion and operable to destroy disease germs, such as bacteria and viruses, passing through said central portion,
- (e) said disease germ killing agent means being located between exterior and interior portions of said central portion for killing disease germs without normally contacting the skin of a person handling and/or wearing said mask.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 51 U.S. patent(s) that reference this one
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