US4444183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hood
Assignee: Individual
•
Filing: 1981-12-04
•
Granted: 1984-04-24
•
Expires: 2001-12-04
Abstract
Abstract A compartment, adapted to receive the head of a patient therein, which includes means for receiving a supply of oxygen or similar gas therein, the geometry being such that a continuous supply of such gas is provided adjacent the patient's face.
Inventors
- 👤 David E. Heckendorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:04
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61M16/0605; A61M16/0627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
280 words
A hood comprising: a compartment open at the bottom thereof, said compartment including; a front planar wall having a portion thereof adapted to be placed over a patient, a rear planar wall means comprising at least one planar surface, said rear planar wall means having means for receiving gas inlet means therethrough, means for causing gas entering said receiving means to form a continuous reservoir of gas adjacent said front planar wall, said reservoir forming means including a pair of connecting upper wall planar portions, one of which upper wall planar portions is linked to said front planar wall and the other of which is linked to said one rear planar surface, said upper wall planar portions forming an obtuse angle therebetween, said other upper wall planar portion and said one rear planar surface forming an obtuse angle therebetween, and said one upper wall planar portion and said front planar wall having a curved juncture and being approximately perpendicular to each other, and gas inlet means positionable within said gas inlet receiving means, said gas inlet means being so positionable as to direct gas at an acute angle relative to said other upper wall planar portion, said pair of upper wall planar portions being so angularly related that gas from said gas inlet means striking said other upper wall planar portion at an acute angle will thereafter strike said one upper wall planar portion at an acute angle, and said one upper wall planar portion and said front planar wall are so angularly related that said gas from said gas inlet means striking said one upper wall planar portion will thereafter strike said front wall in an approximately perpendicular manner.
Claim 2
Dependent Claim
280 words
A hood comprising: a compartment open at the bottom thereof, said compartment including; a front planar wall having a portion thereof adapted to be placed over a patient, a rear planar wall means comprising at least one planar surface, said rear planar wall means having means for receiving gas inlet means therethrough, means for causing gas entering said receiving means to form a continuous reservoir of gas adjacent said front planar wall, said reservoir forming means including a pair of connecting upper wall planar portions, one of which upper wall planar portions is linked to said front planar wall and the other of which is linked to said one rear planar surface, said upper wall planar portions forming an obtuse angle therebetween, said other upper wall planar portion and said one rear planar surface forming an obtuse angle therebetween, and said one upper wall planar portion and said front planar wall having a curved juncture and being approximately perpendicular to each other, and gas inlet means positionable within said gas inlet receiving means, said gas inlet means being so positionable as to direct gas at an acute angle relative to said other upper wall planar portion, said pair of upper wall planar portions being so angularly related that gas from said gas inlet means striking said other upper wall planar portion at an acute angle will thereafter strike said one upper wall planar portion at an acute angle, and said one upper wall planar portion and said front planar wall are so angularly related that said gas from said gas inlet means striking said one upper wall planar portion will thereafter strike said front wall in an approximately perpendicular manner.
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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |