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 Title: |
US4920576:
Visor-type mask for dentists
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Landis, Timothy J.; Roseville, CA 95661-4945
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| Assignee: |
None
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| Published / Filed: |
1990-05-01
/ 1989-01-17
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| Application Number: |
US1989000297050
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| IPC Code: |
Advanced:
A61F 9/02;
IPC-7:
A42B 1/06;
A61F 9/06;
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| ECLA Code: |
A61F9/02;
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| U.S. Class: |
Current:
002/009;
002/010;
002/173;
002/195.2;
002/200.2;
002/200.3;
002/209.3;
002/901;
002/909;
Original:
002/009;
002/010;
002/173;
002/185.R;
002/199;
002/200;
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| Field of Search: |
002/009,10,173,181.4,185 R,199,200
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| Priority Number: |
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| Abstract: |
An improvement upon other inventions of Applicant wherein a visor which is attached to the head of the user supports a shield which hangs in front of the face of the wearer, protecting the eyes, nose and mouth from contamination which might be carried by dental and medical patients or in other environments. This invention differs in that the support of the shield is accomplished by forward extending tabs on the forward edge of the visor projecting into slots formed near the upper edge of the shield.
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| Attorney, Agent or Firm: |
Caplan, Julian ;
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| Primary / Asst. Examiners: |
Schroeder, Werner H.; Chapman, Jeanette E.
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
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| Related Applications: |
| Application Number |
Filed |
Patent |
Pub. Date |
Title |
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| US1988000194150 | 1988-05-16 |
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| US1988000214437 | 1988-07-01 |
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| US1988000229349 | 1988-08-08 |
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| Parent Case: |
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of Applicant's co-pending applications Ser. No. 194,150 filed May 16, 1988, 214,437 filed Jul. 1, 1988, and 229,349 filed Aug. 8, 1988. This application is also an improvement upon Ser. No. 229,448 filed Aug. 8, 1988 in which Applicant is a co-inventor. Reference is further made to Applicant's U.S. Pat. No. 4,701,965, on which the present application is an improvement.
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| Family: |
Show 4 known family members
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First Claim:
Show all 14 claims |
What is claimed is:
1. A face mask comprising a visor, said visor comprising first means comprising a bill for engaging or lying against the forehead, said bill projecting forwardly above eye level and second means for attaching the visor to the head of the wearer, said bill being formed with first cooperating means extending along the outer edge of said bill, said first cooperating means comprising a plurality of projections spaced along said outer edge of said bill, and a shield transparent over at least a substantial portion of its area, said shield having an upper edge, second cooperating means on said shield shaped and positioned to engage said first cooperating means so that said shield is supported by said visor, said shield being dimensioned to extend down below the mouth and around the face, said second cooperating means comprising spaced slits in said shield dimensioned to receive and retain said projections, said shield having its upper edge disposed above said bill and being further disposed in contact with said outer edge of said bill.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 18 U.S. patent(s) that reference this one
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