US3658058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breathing apparatus nose-closing device
Assignee: MSA Safety Inc
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Filing: 1970-04-06
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Granted: 1972-04-25
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Expires: 1990-04-06
Abstract
Abstract A breathing tube, which is provided at one end with a bite piece for holding it in the mouth, is snugly surrounded by a supporting member close to the bite piece. This member extends upwardly and has nose-engaging means integral with its upper portion for closing the nostrils.
Inventors
- 👤 John W Neidhart
- 👤 Rutherford B Snyder Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:18
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488; A61M16/049; A61M16/0493; A61M16/06; A62; A62B; A62B9/00; A62B9/06; A61M2210/00; A61M2210/06; A61M2210/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
The combination of a breathing tube provided at one end with a bite piece for holding that end in the mouth, a supporting member having a lower ring portion snugly surrounding the tube close to said bite piece and a post portion extending upwardly therefrom, and nose-engaging means integral with the upper post portion of said member and supported thereby, the supporting member and nose-engaging means being a single element of resilient rubber-like material, and said nose-engaging means being a recessed clip positioned to receive and straddle the end of the nose and pinch the nostrils shut.
Claim 2
Dependent Claim
97 words
The combination of a breathing tube provided at one end with a bite piece for holding that end in the mouth, a supporting member having a lower ring portion snugly surrounding the tube close to said bite piece and a post portion extending upwardly therefrom, and nose-engaging means integral with the upper post portion of said member and supported thereby, the supporting member and nose-engaging means being a single element of resilient rubber-like material, and said nose-engaging means being a recessed clip positioned to receive and straddle the end of the nose and pinch the nostrils shut.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |