US4084587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid heating apparatus
Assignee: Arbrook Inc
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Filing: 1975-07-17
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Granted: 1978-04-18
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Expires: 1995-07-17
Abstract
Abstract A fluid heating apparatus for use in medical applications in the heating of water for use in a nebulizer is provided having a heated passageway for connecting between a water reservoir and a nebulizer head for heating only the water being used immediately before use. The passageway may be formed at the interfacing surfaces of a housing and an insert. The insert may be coated with a biocompatible material which possesses certain heat conductive properties while providing a water seal. A channel may transverse the surface of the coating to establish the passageway. An electrical heater may be located within the insert.
Inventors
- 👤 Joseph W. Lindsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/14; A61M16/16; A61M16/1075; A61M16/109; A61M16/12; A61M16/122; A61M16/125; A61M16/127; A61M2202/00; A61M2202/02; A61M2202/0208; A61M2205/00; A61M2205/36; A61M2205/3653; Y; Y10; Y10S; Y10S261/00; Y10S261/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
In combination with a medical device including a nebulizer having a venturi-type nozzle and a fluid supply, a fluid heating apparatus, comprising: a housing having a chamber provided therein, said chamber having a truncated pyramidal shape and having access openings through the walls thereof connected to said fluid supply and connected to said nozzle; a truncated pyramidal shaped insert positioned in said housing and having situated therewithin a heating element having electrical leads thereto, said heating element including a rectilinearly shaped, wound resistance wire heater element, and a rubber coating material surrounding said heater element, the outer surface of said coating material providing a truncated pyramidal shape and including a relieved channel in the outer surface thereof, said channel traversing said insert surface in rectilinear maze fashion, and forming a passageway from said fluid supply opening to said nozzle opening at the interfacing surfaces of said chamber walls and said insert when said insert is inserted into said chamber in a pressure fit.
Claim 2
Dependent Claim
163 words
In combination with a medical device including a nebulizer having a venturi-type nozzle and a fluid supply, a fluid heating apparatus, comprising: a housing having a chamber provided therein, said chamber having a truncated pyramidal shape and having access openings through the walls thereof connected to said fluid supply and connected to said nozzle; a truncated pyramidal shaped insert positioned in said housing and having situated therewithin a heating element having electrical leads thereto, said heating element including a rectilinearly shaped, wound resistance wire heater element, and a rubber coating material surrounding said heater element, the outer surface of said coating material providing a truncated pyramidal shape and including a relieved channel in the outer surface thereof, said channel traversing said insert surface in rectilinear maze fashion, and forming a passageway from said fluid supply opening to said nozzle opening at the interfacing surfaces of said chamber walls and said insert when said insert is inserted into said chamber in a pressure fit.
References Cited (Backward Citations)
US803795A
Cited
US942874A
Cited
US1554219A
Cited
US2040630A
Cited
US3096426A
Cited
US3458948A
Cited
US3718805A
Cited
US3820540A
Cited
US3864544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |