US4275725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breathing apparatus
Assignee: Individual
•
Filing: 1979-12-03
•
Granted: 1981-06-30
•
Expires: 1999-12-03
Abstract
Abstract An improved breathing apparatus fittable into the mouth of a human between the teeth and cheek is disclosed. The apparatus comprises a tube having a front opening and a back opening and sufficient length to project forward to the front of the lips and rearward down the side of the mouth to a point adjacent the molars; to the end of the tube proximate the exterior of the lips is coupled a curved flange stabilizing means and spaced rearward of the curved flange stabilizing means is curved sealing means adapted to fit between the frontal teeth and the lips to an extent to seal off passage of air through the mouth except into the tube.
Inventors
- 👤 Byron G. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:29
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0488
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
239 words
In a breathing apparatus of the kind which is fittable in the mouth of a human between the cheek and teeth, which apparatus includes tube means having an opening proximate to the lips and an opening distal to the lips, said distal opening adapted to be located proximate the molars, said openings being sized in combination to permit a flow of respirated air through said tube means approximate the flow of air said human could achieve through normal nasal breathing; said tube means being adapted and having sufficient length to extend from the front of said mouth back down the side of said mouth to a point adjacent the molars, and sealing means adapted to extend from said front open end around the front of said mouth to an extent to seal off passage of air through said front of said mouth except into said front opening, said sealing means being adapted for fitment between the frontal teeth and lips; an improvement comprising flange stabilizer means coupled to an extension of said tube means at a point forward of said sealing means, said flange stabilizer means being adapted for fitment along the exterior of said lips when said apparatus is in the mouth, said flange stabilizer means being in a plane approximately parallel to the plane of said sealing means, the space between said flange stabilizer means and said sealing means being approximate the width of said human's lips.
Claim 2
Dependent Claim
239 words
In a breathing apparatus of the kind which is fittable in the mouth of a human between the cheek and teeth, which apparatus includes tube means having an opening proximate to the lips and an opening distal to the lips, said distal opening adapted to be located proximate the molars, said openings being sized in combination to permit a flow of respirated air through said tube means approximate the flow of air said human could achieve through normal nasal breathing; said tube means being adapted and having sufficient length to extend from the front of said mouth back down the side of said mouth to a point adjacent the molars, and sealing means adapted to extend from said front open end around the front of said mouth to an extent to seal off passage of air through said front of said mouth except into said front opening, said sealing means being adapted for fitment between the frontal teeth and lips; an improvement comprising flange stabilizer means coupled to an extension of said tube means at a point forward of said sealing means, said flange stabilizer means being adapted for fitment along the exterior of said lips when said apparatus is in the mouth, said flange stabilizer means being in a plane approximately parallel to the plane of said sealing means, the space between said flange stabilizer means and said sealing means being approximate the width of said human's lips.
Claim 3
Dependent Claim
17 words
The improvement of claim 1 wherein said flange stabilizer means is rigidly affixed to said tube means.
Claim 4
Dependent Claim
17 words
The improvement of claim 1 wherein said flange stabilizer means is axially movable along said tube means.
Claim 5
Dependent Claim
44 words
The improvement of claim 3 wherein there is additionally provided stopping means adjacent the front open end of said extension of said tube means, said stopping means being adapted to prevent unwanted removal of said flange stabilizer means at the front of said extension.
Claim 6
Dependent Claim
48 words
The improvement of claim 1 wherein said extension of said tube means between said flange stabilizer means and said curved sealing means has a pear shape configuration whereby the more obtuse end of said pear shaped extension is adapted to fit in the corner of the user's mouth.
Claim 7
Dependent Claim
27 words
The improvement of claim 1 wherein said flange stabilizer means has an additional portion adapted for fitment around the outside of the cheek of the user's mouth.
Claim 8
Dependent Claim
22 words
The improvement of claim 1 wherein said sealing means and said flange stabilizer means are both axially movable along said tube means.
Claim 9
Dependent Claim
50 words
The improvement of claim 7 wherein there is additionally provided a stopping means adjacent the front opening of said extension of said tube means, said stopping means being adapted to prevent unwanted removal of said flange stabilizer means and said curved sealing means from the front of said tube means.
Claim 10
Dependent Claim
142 words
In a breathing apparatus of the kind which is fittable in the mouth of a human between the cheek and teeth, which apparatus includes tube means having an opening proximate the lips and an opening distal to the lips, said distal opening adapted to be located proximate the molars; said openings being sized in combination to permit a flow of respirated air through said tube means approximate the flow of air said human could achieve through normal nasal breathing; said tube means being adapted and having sufficient length to extend from the front of said mouth back down the side of said mouth to a point adjacent the molars, and sealing means adapted to extend from said tube means and adapted for fitment between the frontal teeth and lips; an improvement wherein said sealing means is axially movable along said tube means.
Claim 11
Dependent Claim
142 words
In a breathing apparatus of the kind which is fittable in the mouth of a human between the cheek and teeth, which apparatus includes tube means having an opening proximate the lips and an opening distal to the lips, said distal opening adapted to be located proximate the molars; said openings being sized in combination to permit a flow of respirated air through said tube means approximate the flow of air said human could achieve through normal nasal breathing; said tube means being adapted and having sufficient length to extend from the front of said mouth back down the side of said mouth to a point adjacent the molars, and sealing means adapted to extend from said tube means and adapted for fitment between the frontal teeth and lips; an improvement wherein said sealing means is axially movable along said tube means.
Claim 12
Dependent Claim
139 words
In a breathing apparatus of the kind which is fittable in the mouth of a human between the cheek and teeth, which apparatus includes tube means having an opening proximate to the lips and an opening distal to the lips, said distal opening adapted to be located proximate the molars, said openings being sized in combination to permit a flow of air approximate that flow of air said human could achieve through normal nasal breathing; said tube means being adapted and having sufficient length to extend from the front of said mouth back down the side of said mouth to a point adjacent the molars, and flange stabilizing means extending from said tube means, said stabilizing means being adapted for fitment externally proximate the lips; an improvement wherein said flange stabilizing means is axially movable along said tube means.
Claim 13
Dependent Claim
139 words
In a breathing apparatus of the kind which is fittable in the mouth of a human between the cheek and teeth, which apparatus includes tube means having an opening proximate to the lips and an opening distal to the lips, said distal opening adapted to be located proximate the molars, said openings being sized in combination to permit a flow of air approximate that flow of air said human could achieve through normal nasal breathing; said tube means being adapted and having sufficient length to extend from the front of said mouth back down the side of said mouth to a point adjacent the molars, and flange stabilizing means extending from said tube means, said stabilizing means being adapted for fitment externally proximate the lips; an improvement wherein said flange stabilizing means is axially movable along said tube means.
References Cited (Backward Citations)
US3106916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |