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 Title: |
US4864653:
Protective shield and visor supporting same
[ 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: |
1989-09-12
/ 1988-05-16
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| Application Number: |
US1988000194150
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| IPC Code: |
Advanced:
A61F 9/02;
Core:
more...
IPC-7:
A61F 9/00;
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| U.S. Class: |
Current:
002/009;
002/909;
Original:
002/009;
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| Field of Search: |
002/009,10,11,12,13,DIG. 11
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| Priority Number: |
| 1988-05-16 |
US1988000194150 |
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| Abstract: |
A mask to protect physicians, dentists and technicians from spatter from patients afflicted with various diseases (including A.I.D.S.) is assembled from two parts, which may be shipped and stored flat, may be sterilized, and are so inexpensive in materials and cost of fabrication that they may be disposed of after use. In one form of the invention, a visor is formed of a flat piece of sheet rubber having two tails provided with interfitting snaps. The tails are brought around the back of the head and the proper snaps or other fasteners adjusted to accommodate the head size of the wearer. This operation causes the flat sheet to assume a curved visor shape fitting around the forehead. In another embodiment, a hole is punched in a curved sheet of elastic material of a size so that it may be drawn down over the head. In a further embodiment, a piece of stretchable rubber-like tubing has opposite ends attached to ends of the tails of the visor. The tubing is stretched around the back of the head, causing the visor to assume an upward convex shape and causing its inner edge to engage the forehead of the wearer. The shape of the sheet provides a bill similar to the preceding modification. Slits are formed near the outer edge of the visor. A transparent shield has dovetail projections on its upper edge which snap through the slits. Other cooperating fastening means may be used to assemble the visor and shield. The shield is supported by the visor and hangs down to about the chin, protecting the eyes, nose and mouth.
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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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Family Legal Status Report
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| Family: |
Show 4 known family members
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First Claim:
Show all 9 claims |
What is claimed is:
1. A face mask comprising a visor initially formed of a flat sheet of material which is bendable, first means comprising a bill to be attached to the forehead projecting forwardly and second means for attaching the visor to the head of the wearer said second means comprising a first and a second narrow tail, said tails having cooperating fastening means to adjustably fit around the head, said visor being formed with first cooperating means along the outer edge of said visor and a shield of flexible transparent plastic, said shield being initially flat and having an upper edge formed with second cooperating means shaped and positioned to engage said cooperating means so that said shield is supported extending freely substantially vertically downward approximately perpendicular to said visor, said shield being dimensioned to extend down below the mouth and around the face, said first cooperating means comprising at least four spaced slits through the outer edge of said visor and said second cooperating means comprises projections dimensioned to be forced through each of said slits.
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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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