Patent US4701965A successfully refreshed from Google Patents.
US4701965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visor-type mask for dentists
Assignee: Individual
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Filing: 1986-03-21
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Granted: 1987-10-27
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Expires: 2006-03-21
Abstract
Abstract A mask to protect dentists from handpiece splatter which contains all manner of germs and viruses and has a visor which attaches to the head above the eyes and a transparent shield which extends down below the mouth. The shield is preferably detachable from the visor for cleaning and replacement. The visor has a vent for air circulation which may be closed by a cover for protection. A filter may be applied to the shield for eye protection when ultraviolet light is being used for curing plastic tooth cavity fillings.
Inventors
- 👤 Timothy J. Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:52
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1184; A42; A42B; A42B1/00; A42B1/018; A42B1/0181; A61; A61F; A61F9/00; A61F9/02
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
109 words
A face mask comprising a visor, first means for supporting said visor projecting forward from the head of the wearer above eye level, a shield supported by said visor, said shield being transparent over at least a substantial portion of its area, and second means attaching said shield to said visor to extend down from said visor to below the mouth and around the face to protect the eyes, nose and mouth, said first means comprising a resilient band having a center around the front of the head and discrete, thin, flexible ends engaging the sides of the head, said ends terminating spaced from the back of the head.
Claim 2
Dependent Claim
109 words
A face mask comprising a visor, first means for supporting said visor projecting forward from the head of the wearer above eye level, a shield supported by said visor, said shield being transparent over at least a substantial portion of its area, and second means attaching said shield to said visor to extend down from said visor to below the mouth and around the face to protect the eyes, nose and mouth, said first means comprising a resilient band having a center around the front of the head and discrete, thin, flexible ends engaging the sides of the head, said ends terminating spaced from the back of the head.
Claim 3
Dependent Claim
15 words
A mask according to claim 1 in which said visor is formed with an opening.
Claim 4
Dependent Claim
14 words
A mask according to claim 2 which further comprises a cover for said opening.
Claim 5
Dependent Claim
28 words
A mask according to claim 3 which further comprises hinge means connecting said cover to said visor whereby said cover may be moved between covered and uncovered positions.
Claim 6
Dependent Claim
24 words
A mask according to claim 3 in which said cover is removable and which further comprises detachable means securing the cover in said opening.
Claim 7
Dependent Claim
23 words
A mask according to claim 4 in which said cover has a protective position extending upward-rearward from the forward edge of said opening.
Claim 8
Dependent Claim
28 words
A mask according to claim 1 in which said shield is formed of a sheet of flexible transparent plastic having an upper edge and downward converging side edges.
Claim 9
Dependent Claim
111 words
A face mask comprising a visor, first means for supporting said visor projecting forward from the head of the wearer above eye level, a shield, said shield being transparent over at least a substantial portion of its area, and second means attaching said shield to said visor to extend down from said visor to below the mouth and around the face to protect the eyes, nose and mouth, said shield being formed of a sheet of flexible, transparent plastic having an upper edge and downward converging side edges, said filter comprising a piece of filter material and detachable means for attaching a filter, said piece to said sheet of transparent plastic.
Claim 10
Dependent Claim
111 words
A face mask comprising a visor, first means for supporting said visor projecting forward from the head of the wearer above eye level, a shield, said shield being transparent over at least a substantial portion of its area, and second means attaching said shield to said visor to extend down from said visor to below the mouth and around the face to protect the eyes, nose and mouth, said shield being formed of a sheet of flexible, transparent plastic having an upper edge and downward converging side edges, said filter comprising a piece of filter material and detachable means for attaching a filter, said piece to said sheet of transparent plastic.
Claim 11
Dependent Claim
82 words
A face mask comprising a visor, first means for supporting said visor projecting forward from the head of the wearer above eye level, a shield, said shield being transparent over at least a substantial portion of its area, and second means attaching said shield to said visor to extend down from said visor to below the mouth and around the face to protect the eyes, nose and mouth, said shield being provided with a filter area to protect eyes from harmful rays.
Claim 12
Dependent Claim
82 words
A face mask comprising a visor, first means for supporting said visor projecting forward from the head of the wearer above eye level, a shield, said shield being transparent over at least a substantial portion of its area, and second means attaching said shield to said visor to extend down from said visor to below the mouth and around the face to protect the eyes, nose and mouth, said shield being provided with a filter area to protect eyes from harmful rays.
Claim 13
Dependent Claim
19 words
A mask according to claim 1 in which said second means is detachable whereby said shield may be replaced.
Claim 14
Dependent Claim
30 words
A mask according to claim 10 in which said visor is provided with first fastening means and said shield with cooperating second fastening means, one said fastening means being resilient.
Claim 15
Dependent Claim
56 words
A mask according to claim 11 in which said first fastening means comprises a plurality of studs fixed to the underside of said visor adjacent the forward edge of said visor and said second fastening means comprises a plurality of holes formed adjacent the upper edge of said shield spaced and shaped to receive said studs.
Claim 16
Dependent Claim
17 words
A mask according to claim 12 in which at lease one said stud has an irregular shape.
Claim 17
Dependent Claim
31 words
A mask according to claim 12 in which said shield is formed with a plurality of short slits extending outward of said holes to make said shield flexible near said holes.
Claim 18
Dependent Claim
30 words
A mask according to claim 12 which further comprises a reinforcing ledge depending from the underside of said visor, said studs being fixed to the rearward face of said ledge.
Claim 19
Dependent Claim
29 words
A mask according to claim 9 in which said filter comprises a band of orange pigment across said shield having its upper edge below the level of the eyes.
Claim 20
Dependent Claim
22 words
A mask according to claim 16 in which said band terminates on both sides short of the side edges of said shield.
Claim 21
Dependent Claim
20 words
A mask according to claim 9 in which said filter comprises a band extending across the top of said shield.
Claim 22
Dependent Claim
30 words
A mask according to claim 9 in which said filter is on the inside of said shield and which further comprises a mirror fixed on the outside of said shield.
Claim 23
Dependent Claim
35 words
A shield for a mask of the type described comprising a sheet of flexible, transparent plastic having an upper edge and is formed with a plurality of holes spaced slightly below the said upper edge.
Claim 24
Dependent Claim
35 words
A shield for a mask of the type described comprising a sheet of flexible, transparent plastic having an upper edge and is formed with a plurality of holes spaced slightly below the said upper edge.
Claim 25
Dependent Claim
26 words
A shield according to claim 20 formed with a plurality of short slits extending outward from said holes to make said shield flexible near said holes.
Claim 26
Dependent Claim
15 words
A shield according to claim 20 in which said shield has downward converging side edges.
Claim 27
Dependent Claim
23 words
A shield according to claim 20 in which said shield is provided with a filter area to protect the eyes from harmful rays.
Claim 28
Dependent Claim
29 words
A shield according to claim 23 in which said filter comprises a band of orange pigment across said shield having its upper edge below the level of the eyes.
Claim 29
Dependent Claim
22 words
A shield according to claim 24 in which said band terminates on both ends short of the side edges of said shield.
Claim 30
Dependent Claim
20 words
A shield according to claim 24 in which said filter comprises a band extending across the top of said shield.
Claim 31
Dependent Claim
29 words
A shield according to claim 24 which said filter is on the inside of said shield and which further comprises a mirror finish on the outside of said shield.
Claim 32
Dependent Claim
29 words
A shield according to claim 23 in which said filter comprises a piece of filter material and detachable means for attaching said piece to said sheet of transparent plastic.
Claim 33
Dependent Claim
28 words
A shield according to claim 20 in which at least one said hole is formed with a vertical leg and round cutouts on either side of said leg.
Claim 34
Dependent Claim
53 words
A shield according to claim 20 in which a first said hole is formed in the center of said mask and second and third holes are formed on opposite sides of said first hole, each said second and third hole having a vertical leg and round cutouts on either side of said leg.
References Cited (Backward Citations)
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US2262449A
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US2665686A
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US2818859A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |