US4236513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed oxygen chamber
Assignee: Individual
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Filing: 1979-04-18
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Granted: 1980-12-02
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Expires: 1999-04-18
Abstract
Abstract A treatment chamber for a human extremity specially adapted for use with a pulsed or hyperbaric oxygen supply, the chamber comprising upper and lower sections adapted to be sealingly clamped together and provided at one end with a demountable annular sleeve, which fits sealingly against the sides of a patient's extremity and against a chamber end closure element.
Inventors
- 👤 Rocco W. LoPiano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:39
CPC Classifications
A; A61; A61H; A61H9/00; A61H9/005; A61H9/0071; A61H33/00; A61H33/14; A61M; A61M35/00; A61M35/30; A61H2033/143
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
A closable chamber for use in gas treatment of a human limb comprising separable lower and upper portions and a ring-sleeve assembly, the lower portion including an elongated upwardly facing trough having a closed end wall and a partially cut away end wall, the upper portion including an elongated downwardly facing trough having a closed end wall and a partially cut away end wall, each of the upper portion end walls being complementary to the respective lower portion end walls and the cut away walls having beveled edges which cooperate to define a substantially circular opening, the lower and upper portions having matching peripheral edges, upwardly and downwardly facing, respectively, and a vertically compressible sealing gasket being located between said edges, and the ring-sleeve assembly being provided with means engageable with the beveled edges of the circular opening and a horizontally compressible sealing gasket engageable with the cut away walls.
Claim 2
Dependent Claim
150 words
A closable chamber for use in gas treatment of a human limb comprising separable lower and upper portions and a ring-sleeve assembly, the lower portion including an elongated upwardly facing trough having a closed end wall and a partially cut away end wall, the upper portion including an elongated downwardly facing trough having a closed end wall and a partially cut away end wall, each of the upper portion end walls being complementary to the respective lower portion end walls and the cut away walls having beveled edges which cooperate to define a substantially circular opening, the lower and upper portions having matching peripheral edges, upwardly and downwardly facing, respectively, and a vertically compressible sealing gasket being located between said edges, and the ring-sleeve assembly being provided with means engageable with the beveled edges of the circular opening and a horizontally compressible sealing gasket engageable with the cut away walls.
Claim 3
Dependent Claim
31 words
A closable chamber according to claim 1 wherein at least one of the gaskets is substantially rectangular in cross-section and longitudinally grooved along its side facing the interior of the chamber.
Claim 4
Dependent Claim
27 words
A closable chamber according to claim 2 wherein each gasket is substantially rectangular in cross-section and longitudinally grooved along its side facing the interior of the chamber.
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) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |