US4337767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable anesthesia mask cover
Assignee: Individual
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Filing: 1981-01-15
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Granted: 1982-07-06
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Expires: 2001-01-15
Abstract
Abstract A disposable cover for an anesthesia mask is herein described as comprising a composite member having a pliable portion surrounding a central relatively rigid portion. The pliable portion may consist of rubber, plastic or paper and is formed with an elastomeric periphery for securing the cover over an anesthesia mask. The relatively rigid central portion may be of a stiff rubber, plastic or paper and be formed with a central cylindrical projection which frictionally engages within the gas inlet of the mask.
Inventors
- 👤 James I. Yahata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:57
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61M16/0683; Y; Y10; Y10S; Y10S128/00; Y10S128/909
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
A disposable cover adapted to be inserted within an anesthesia mask having a body portion with a peripheral edge and a central circular inlet opening, said cover comprising a composite member having a pliable peripheral portion surrounding a central more rigid portion, said pliable portion adapted to overlap the peripheral edge of said mask, said more rigid portion being shaped to conform to the inside surface of the body portion of said mask and having tubular projection means alignable with said inlet opening and sized with an outside diameter to be frictionally engaged in said inlet opening and thereby hold said cover within said anesthesia gas mask.
Claim 2
Dependent Claim
107 words
A disposable cover adapted to be inserted within an anesthesia mask having a body portion with a peripheral edge and a central circular inlet opening, said cover comprising a composite member having a pliable peripheral portion surrounding a central more rigid portion, said pliable portion adapted to overlap the peripheral edge of said mask, said more rigid portion being shaped to conform to the inside surface of the body portion of said mask and having tubular projection means alignable with said inlet opening and sized with an outside diameter to be frictionally engaged in said inlet opening and thereby hold said cover within said anesthesia gas mask.
Claim 3
Dependent Claim
37 words
A disposable cover for an anesthesia mask according to claim 1 having an elastomeric periphery surrounding said pliable portion thereof for holding said pliable portion in an operational posture over the peripheral edge of the anesthesia mask.
Claim 4
Dependent Claim
32 words
A disposable cover for an anesthesia mask according to claim 1 having a sticker means for holding said pliable portion in an operational posture over the peripheral edge of the anesthesia mask.
Claim 5
Dependent Claim
56 words
A disposable cover for an anesthesia mask as described in claim 2 which further includes an inflatable peripheral edge with a valve member projecting from the outside surface thereof, said cover further having an opening positioned in said pliable portion and sized to recieve the valve member projecting from the outside surface of said anesthesia mask.
Claim 6
Dependent Claim
56 words
A disposable cover for an anesthesia mask as described in claim 3 which further includes an inflatable peripheral edge with a valve member projecting from the outside surface thereof, said cover further having an opening positioned in said pliable portion and sized to receive the valve member projecting from the outside surface of said anesthesia 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) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |