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 Title: |
US5080092:
Protective mask
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Tenna, Giovanni M.; Munich, Germany
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| Assignee: |
SGE Societa Generale Elastomeri S.p.A. Italy
other patents from SGE SOCIETA GENERALE ELASTOMERI S.P.A. (507561) (approx. 1)
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| Published / Filed: |
1992-01-14
/ 1990-02-09
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| Application Number: |
US1990000483963
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| IPC Code: |
Advanced:
A62B 18/02;
IPC-7:
A62B 18/08;
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| ECLA Code: |
A62B18/02;
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| U.S. Class: |
Current:
128/201.19;
128/206.24;
Original:
128/201.19;
128/206.24;
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| Field of Search: |
128/201.19,201.24,205.27,206.21,206.24,207.12
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| Priority Number: |
| 1937-08-04 |
CH1937000002981 |
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| Abstract: |
The protective mask (1) comprises essentially a face-shield (2) covering the user's face, made by rigid, resilient and transparent material and rimmed by a bellows seal; the belts (4), the operational means interfacing to the outside world, the filters, the ocular surfaces (12) and the other elements with which the mask is provided are fitted to the rigid structure of the face-shield (2) which does not transmit the possible deformations due to the weight of the means to the seal (11); said seal (11) provided only the necessary tightness with high comfort allowing the continuous use of the mask even during many consecutive days and nights (see FIG. 3).
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| Attorney, Agent or Firm: |
Brumbaugh, Graves, Donohue & Raymond ;
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| Primary / Asst. Examiners: |
Burr, Edgar S.; Lewis, Aaron J.
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| Maintenance Status: |
CC Certificate of Correction issued
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Parent Case: |
This application is a continuation of application Ser. No. 227,157, filed on Aug. 2, 1988, now abandoned.
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| Family: |
Show 3 known family members
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First Claim:
Show all 6 claims |
What is claimed is:
1. A protective mask comprising:
- an outer one-piece face shield having a front wall adapted to overlie the wearer's face and a peripheral edge which when the mask is secured to the wearer's head fits over the forehead and cheeks and under the chin of the wearer and extends rearwardly, said face shield being formed of rigid material at least an ocular portion of which is transparent for providing the wearer a wide field of view;
- means for resiliently sealing said face shield to the face of the wearer comprising a unitary structure in the form of an annular development having an outer edge the contour of which corresponds to the contour of the peripheral edge of said face shield and an inner edge, wherein the outer edge of said face sealing structure is detachably secured to said face shield with a peripheral hoop cooperatively with a step formed on said face shield along the peripheral edge, said structure having a channel at said outer edge in which the peripheral edge of said face shield is received for sealing said face shield to said sealing means, an annular-shaped sealing strip surrounding the inner edge, and compressible bellows means interposed between said channel and said face sealing strip for resiliently adjusting the tightness of the seal between the face sealing strip and the face of the wearer; and
- means for securing said face shield to the head of the wearer comprising a plurality of elastic belts each secured at one end to said face shield and interconnected at the other end and arranged to fit over the back of the head of the wearer for supporting the load of said face shield and any attachments thereon without affecting said face sealing means other than to comfortably maintain the tightness of the seal between the face sealing strip and the face of the wearer, and wherein said one end of said belts are attached to said peripheral hoop at spaced locations therearound.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 20 U.S. patent(s) that reference this one
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