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 Title: |
US4945574:
Protective mask
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Dagher, F. Joseph; St. Petersburg, FL
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| Assignee: |
DHL Research and Development Corporation, Philadelphia, PA
other patents from DHL RESEARCH AND DEVELOPMENT CORPORATION (145630) (approx. 1)
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| Published / Filed: |
1990-08-07
/ 1989-03-02
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| Application Number: |
US1989000318048
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| IPC Code: |
Advanced:
A61F 9/02;
Core:
more...
IPC-7:
A61F 9/04;
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| U.S. Class: |
Current:
002/009;
002/206;
128/201.12;
128/206.24;
128/863;
D29/110;
Original:
002/009;
002/206;
128/863;
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| Field of Search: |
002/206,9,10,427,431,12
128/863
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| Priority Number: |
| 1988-02-09 |
US1988000153858 |
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| Abstract: |
A protective mask comprising an imperforate, transparent shield mounted on the brow and extending over the face of a person wearing the mask. The shield includes an anteriorly protruding portion spaced sufficiently away from the wearer's face to enable spectacles or other optical devices to be worn by the user. The anteriorly protruding portion includes an outwardly flaring upper portion and a downwardly flaring lower portion, with the junction between the upper and lower portions being a non-sharp, gradually curved section which minimizes the amount of visual distortion experienced by the user. Attached in a longitudinal fashion, adjacent each side edge of the shield, is a malleable, form-adjusting strip, the bending of which foreshortens the shield, causing it to bow-out anteriorally to accommodate the use of a variety of sized eyegear to be worn with the mask.
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| Attorney, Agent or Firm: |
Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd. ;
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| Primary / Asst. Examiners: |
Nerbun, Peter;
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
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| Parent Case: |
RELATED APPLICATION
This application is a continuation-in-part of copending application Ser. No. 07/153,858 filed Feb. 9, 1988, now abandoned.
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| Family: |
None
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First Claim:
Show all 8 claims |
I claim:
1. A protective mask for use by a person, said mask comprising mount means for securing said mask onto the head of said person, imperforate shield means supported by said mounting means and disposed therebelow, said shield means being formed of a transparent material and being of a sufficient width and height to cover substantially the entire face of said person, said width being defined between opposed side edges, said shield means including an anteriorly protruding portion, said protruding portion including an outwardly flaring upper portion and a downwardly flaring lower portion, and form adjusting means for adjusting and maintaining the contour of said shield means, said form adjusting means comprising elongate strips of malleable, form-retaining material, each of said strips secured adjacent a different one of said opposed side edges of said shield means and bridging said outwardly flaring upper portion and said downwardly flaring lower portion.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 37 U.S. patent(s) that reference this one
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