US3876859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated transport incubator
Assignee: Draegerwerk AG and Co KGaA
•
Filing: 1973-08-24
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Granted: 1975-04-08
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Expires: 1993-08-24
Abstract
Abstract An incubator for transporting babies while keeping them, during the transportation, under a constant ambient temperature is thermally insulated on all sides and comprises in the interior receptacles containing a chemical compound preferably tetradecyl alcohol having a melting temperature between 30-40.degree.C and emitting latent heat when cooling down and crystallizing, this emitted heat being sufficient to compensate heat losses during transportation of the incubator and so to maintain the inner temperature for a certain time without heat supply. Before the transportation the chemical substance is melted by means of an electric heating device supplied from the outside and a thermostat keeps the inner temperature, before the transportation, slightly above the melting point of the substance.
Inventors
- 👤 Wolfgang Franz
- 👤 Jens Stallbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:30
CPC Classifications
A; A61; A61G; A61G11/00; F; F28; F28D; F28D20/00; F28D20/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
A transport incubator which may be heated to a comfortable temperature for an infant by connection to an external heater actuator at a preparation station prior to transport, comprising a thermally insulated incubator container having means for supporting an infant therein, a substance having a melting point in a temperature range comparable to the temperature range comfortable for the infant disposed in a closed portion of said container, a heater in said container for heating said substance above its melting point to a temperature which is compatible with the desired temperature for the infant to prepare the incubator to receive the infant prior to transportation, said substance being capable of maintaining the interior of the incubator at the desired temperature in the vicinity of its melting point and to transfer heat to the incubator when it gives up its latent heat upon solidifying, and a heater connection connected to said heater and to the exterior of said container and having terminals connectable to the heater actuator at the preparation station.
Claim 2
Dependent Claim
170 words
A transport incubator which may be heated to a comfortable temperature for an infant by connection to an external heater actuator at a preparation station prior to transport, comprising a thermally insulated incubator container having means for supporting an infant therein, a substance having a melting point in a temperature range comparable to the temperature range comfortable for the infant disposed in a closed portion of said container, a heater in said container for heating said substance above its melting point to a temperature which is compatible with the desired temperature for the infant to prepare the incubator to receive the infant prior to transportation, said substance being capable of maintaining the interior of the incubator at the desired temperature in the vicinity of its melting point and to transfer heat to the incubator when it gives up its latent heat upon solidifying, and a heater connection connected to said heater and to the exterior of said container and having terminals connectable to the heater actuator at the preparation station.
Claim 3
Dependent Claim
19 words
A transport incubator according to claim 1, wherein said substance is a substance having a melting point between 30.degree.-40.degree.C.
Claim 4
Dependent Claim
19 words
A transport incubator according to claim 1, wherein all sides of the incubator are provided with a thermal insulation.
Claim 5
Dependent Claim
17 words
A transport incubator according to claim 1, wherein said incubator heater is provided with an electric heater.
Claim 6
Dependent Claim
24 words
A transport incubator according to claim 1, wherein said heater is an electric heater located between said substance and a wall of said incubator.
Claim 7
Dependent Claim
35 words
A transport incubator according to claim 4, including a thermostat connected to said heater by which, during the preparation for service, the temperature of the substance is held above the melting temperature of said substance.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |