US4344758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental face shield
Assignee: Individual
•
Filing: 1981-04-06
•
Granted: 1982-08-17
•
Expires: 2001-04-06
Abstract
Abstract A face shield for use during operations in the fields of dentistry and dental hygiene having an absorbent exterior surface layer, a barrier surface layer, an aperture through both layers, and a moisture-resistant adhesive attachment mechanism to form a seal against moisture when the shield is applied to the face of a patient and a moisture spray is directed toward the patient as that utilized with various tools used in these fields. The face shield is also pliable and has an aperture to permit a degree of freedom of movement for the patient's mouth when the face shield is disposed in its operative position.
Inventors
- 👤 Sandra L. Wielhouwer
- 👤 Suzanne M. Fortner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:52
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/90
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
114 words
A face shield for use on a patient's face in dental operations, comprising means for absorbing moisture providing the exterior surface of said shield directed away from the face; barrier means disposed adjacent said absorbing means providing an interior protective surface directed towards the face; adhesive attachment means secured to said barrier means, said adhesive attachment means being substantially unaffected as to its adhesive capacity by moisture; an aperture disposed through said absorbing means and said barrier means of a size large enough for the patient's open mouth; and said barrier means and said absorbing means extending outwardly from said aperture and said adhesive attachment means in a direction away from the patient's mouth.
Claim 2
Dependent Claim
114 words
A face shield for use on a patient's face in dental operations, comprising means for absorbing moisture providing the exterior surface of said shield directed away from the face; barrier means disposed adjacent said absorbing means providing an interior protective surface directed towards the face; adhesive attachment means secured to said barrier means, said adhesive attachment means being substantially unaffected as to its adhesive capacity by moisture; an aperture disposed through said absorbing means and said barrier means of a size large enough for the patient's open mouth; and said barrier means and said absorbing means extending outwardly from said aperture and said adhesive attachment means in a direction away from the patient's mouth.
Claim 3
Dependent Claim
28 words
A claim in accordance with claim 1, wherein said adhesive attachment means forms a seal around the mouth of a patient when operably disposed on the patient's face.
Claim 4
Dependent Claim
33 words
A claim in accordance with claim 1, wherein said aperture is in the shape of a hexagon to accommodate movement of the patient's mouth and approximate the shape of a patient's open mouth.
Claim 5
Dependent Claim
18 words
A claim in accordance with claim 3, wherein said aperture is in the form of an elongated hexagon.
Claim 6
Dependent Claim
46 words
A claim in accordance with claim 4, wherein for an adult patient, said shield is circular in shape with a diameter of approximately eight inches and said hexagon aperture has two elongated sides of approximately two inches and four sides of approximately one and one-half inches.
Claim 7
Dependent Claim
31 words
A claim in accordance with claim 3, wherein each side of the hexagon have a length in the range of approximately one-fourth to approximately one-sixth the largest dimension of said shield.
Claim 8
Dependent Claim
17 words
A claim in accordance with claim 1, wherein said adhesive attachment means comprises a moisture-resistant adhesive tape.
Claim 9
Dependent Claim
22 words
A claim in accordance with claim 7, wherein said adhesive attachment means comprises a square formed by said tape around said aperture.
Claim 10
Dependent Claim
19 words
A claim in accordance with claim 8, wherein a portion of said square of tape extends within said aperture.
Claim 11
Dependent Claim
30 words
A claim in accordance with claim 7, wherein said adhesive attachment means includes at least one tape portion extending from adjacent said aperture toward the periphery of said face shield.
Claim 12
Dependent Claim
18 words
A claim in accordance with claim 1, wherein both said absorbing means and said barrier means are pliable.
Claim 13
Dependent Claim
134 words
A face shield for use on a patient's face in dental operations, comprising means for absorbing moisture providing an exterior surface of said shield directed away from the face; barrier means disposed adjacent said absorbing means providing an interior surface directed towards the face; an aperture disposed through said absorbing means and said barrier means of a size large enough for the patient's open mouth, said absorbing means and said barrier means extending radially outwardly from said aperture; and adhesive sealing and attachment means disposed at least substantially at the edge of said aperture, said adhesive sealing and attachment means being substantially unaffected as to its adhesive capacity by moisture and sealing the periphery of the patient's mouth to keep moisture limited to the mouth area of the patient's face during a dental operation.
Claim 14
Dependent Claim
134 words
A face shield for use on a patient's face in dental operations, comprising means for absorbing moisture providing an exterior surface of said shield directed away from the face; barrier means disposed adjacent said absorbing means providing an interior surface directed towards the face; an aperture disposed through said absorbing means and said barrier means of a size large enough for the patient's open mouth, said absorbing means and said barrier means extending radially outwardly from said aperture; and adhesive sealing and attachment means disposed at least substantially at the edge of said aperture, said adhesive sealing and attachment means being substantially unaffected as to its adhesive capacity by moisture and sealing the periphery of the patient's mouth to keep moisture limited to the mouth area of the patient's face during a dental operation.
Claim 15
Dependent Claim
128 words
A face shield for use on a patient's face in dental operations, comprising means for absorbing moisture providing at least a portion of the exterior surface of said shield, directed away from the face; barrier means disposed adjacent said absorbing means providing an interior protective surface directed towards the face; an aperture disposed through said barrier means and through at least a portion of said absorbing means of a size large enough for the patient's open mouth; and adhesive sealing and attachment means, said adhesive means being substantially unaffected as to its adhesive capacity by moisture and sealing around the outer periphery of the patient's mouth to prevent moisture from the mouth area from becoming disposed between the barrier means and the patient's face during a dental operation.
Claim 16
Dependent Claim
128 words
A face shield for use on a patient's face in dental operations, comprising means for absorbing moisture providing at least a portion of the exterior surface of said shield, directed away from the face; barrier means disposed adjacent said absorbing means providing an interior protective surface directed towards the face; an aperture disposed through said barrier means and through at least a portion of said absorbing means of a size large enough for the patient's open mouth; and adhesive sealing and attachment means, said adhesive means being substantially unaffected as to its adhesive capacity by moisture and sealing around the outer periphery of the patient's mouth to prevent moisture from the mouth area from becoming disposed between the barrier means and the patient's face during a dental operation.
References Cited (Backward Citations)
US531094A
Cited
US835432A
Cited
US1850540A
Cited
US2667869A
Cited
US2695622A
Cited
US2928388A
Cited
US3478432A
Cited
US3364928A
Cited
US3561440A
Cited
US3667458A
Cited
US3669106A
Cited
US3826253A
Cited
US3956048A
Cited
US4050457A
Cited
US3916887A
Cited
US4024862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-16 | 1986-02-15 | 1986-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-16 | 1990-02-15 | 1990-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-16 | 1994-02-15 | 1994-08-17 | $7700.00 | Window Closed / Lapsed |