US4384577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable face mask
Assignee: Moldex Metric Inc
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Filing: 1981-04-03
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Granted: 1983-05-24
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Expires: 2001-04-03
Abstract
Abstract A face mask for filtering air to a wearer including a plurality of non-woven fibers molded in a generally cup shaped configuration for fitting over the mouth and nose of the wearer and with the cup shaped configuration including a nose bridge portion for lying along the bridge of the nose of the wearer, nose pad portions aligned to either side of the nose bridge portion for fitting against the sides of the nose and a central portion lying below the nose bridge and nose pad portions and with the fibers of the nose pad portions more lightly compacted during molding than the fibers of at least portions of the central portion for providing sealing of the face mask along the sides of the nose and the cheekbones of the wearer, and an elongated ridge member extending across the nose bridge portion and along the nose pad portions and with the elongated ridge more tightly compacted than the nose pad portions to produce a springing action to push the nose pad portions against the side of the nose and the cheekbones of the wearer.
Inventors
- 👤 Otto L. Huber
- 👤 Mark Magidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:16
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1107; A41D13/1138; A41D13/1146
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
158 words
A face mask formed by a plurality of fibers and generally having a cup shape to fit over the mouth and nose of the wearer and for filtering the air passing through the fibers including: a nose bridge portion, nose pad portions to either side of the nose bridge portion to fit against the sides of the nose and against the cheekbone of the wearer, and an elongated ridge extending along and spaced from an edge of the face mask within the nose bridge portion and to either side of the nose bridge portion and along the nose pad portions and with the elongated ridge located between the edge of the face mask and the nose pad portions for providing a spring action to have the nose pad portions forced against the side of the nose and against the cheekbones of the wearer for preventing the passage of air between the mask and the face of the wearer.
Claim 2
Dependent Claim
158 words
A face mask formed by a plurality of fibers and generally having a cup shape to fit over the mouth and nose of the wearer and for filtering the air passing through the fibers including: a nose bridge portion, nose pad portions to either side of the nose bridge portion to fit against the sides of the nose and against the cheekbone of the wearer, and an elongated ridge extending along and spaced from an edge of the face mask within the nose bridge portion and to either side of the nose bridge portion and along the nose pad portions and with the elongated ridge located between the edge of the face mask and the nose pad portions for providing a spring action to have the nose pad portions forced against the side of the nose and against the cheekbones of the wearer for preventing the passage of air between the mask and the face of the wearer.
Claim 3
Dependent Claim
81 words
The face mask of claim 1 wherein the mask includes a central portion below the nose bridge portion and the nose pad portions and with the fibers of the nose pad portions more lightly compacted than the fibers in at least the central portion of the face mask to have the nose pad portions thicker and more flexible than at least the central portion of the face mask and with the elongated ridge more tightly compacted than the nose pad portions.
Claim 4
Dependent Claim
30 words
The face mask of claim 1 wherein the nose bridge portion includes one additional ridge extending across the nose bridge portion for providing additional shape retention for the face mask.
Claim 5
Dependent Claim
53 words
The face mask of claim 1 and with the face mask including a central portion of the face mask below the nose bridge portion and the nose pad portions and with the central portion of the face mask including ridges extending along the central portion for providing shape retention for the face mask.
Claim 6
Dependent Claim
86 words
The face mask of claim 1 additional including a peripheral edge pad portion extending around the periphery of the face mask in at least the nose bridge portion and with the fibers of the peripheral edge pad portion more lightly compacted than the fibers in the elongated ridge to have the peripheral edge portion thicker and more flexible than at least the elongated ridge providing a seal around the peripheral edge to prevent the passage of air between the mask and the face of the wearer.
Claim 7
Dependent Claim
215 words
A face mask for filtering air to a wearer including, a plurality of non-woven fibers molded in a generally cup shaped configuration for fitting over the mouth and nose of the wearer and with the cup shaped configuration including, a nose bridge portion for lying along the bridge of the nose of the wearer, nose pad portions aligned to either side of the nose bridge portion for fitting against the sides of the nose and cheekbones of the wearer, a central portion lying below the nose bridge and nose pad portions and with the fibers of the nose pad portions more lightly compacted during molding than the fibers of at least portions of the central portion for providing sealing of the face mask along the sides of the nose and the cheekbones of the wearer, and an elongated ridge member spaced from an edge of the face mask and extending across the nose bridge portion and along the nose pad portions and with the elongated ridge located between the edge of the face mask and the nose pad portions and with the elongated ridge more tightly compacted than the nose pad portions to produce a springing action to push the nose pad portions against the side of the nose and the cheekbones of the wearer.
Claim 8
Dependent Claim
215 words
A face mask for filtering air to a wearer including, a plurality of non-woven fibers molded in a generally cup shaped configuration for fitting over the mouth and nose of the wearer and with the cup shaped configuration including, a nose bridge portion for lying along the bridge of the nose of the wearer, nose pad portions aligned to either side of the nose bridge portion for fitting against the sides of the nose and cheekbones of the wearer, a central portion lying below the nose bridge and nose pad portions and with the fibers of the nose pad portions more lightly compacted during molding than the fibers of at least portions of the central portion for providing sealing of the face mask along the sides of the nose and the cheekbones of the wearer, and an elongated ridge member spaced from an edge of the face mask and extending across the nose bridge portion and along the nose pad portions and with the elongated ridge located between the edge of the face mask and the nose pad portions and with the elongated ridge more tightly compacted than the nose pad portions to produce a springing action to push the nose pad portions against the side of the nose and the cheekbones of the wearer.
Claim 9
Dependent Claim
36 words
The face mask of claim 6 wherein the nose bridge portion includes at least one additional ridge extending across the nose bridge portion for providing shape retention for the nose bridge portion of the face mask.
Claim 10
Dependent Claim
33 words
The face mask of claim 6 wherein the central portion of the face mask includes ridges extending along the central portion for providing shape retention for the central portion of the face mask.
Claim 11
Dependent Claim
57 words
The face mask of claim 6 additionally including a peripheral edge pad portion extending along at least the periphery of the nose bridge portion and with the molded fibers of the peripheral edge pad portion more lightly compacted than the fibers in the elongated ridge member for providing sealing around the peripheral edge of the face mask.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |