Unpatented Grashof-Incubator

The most simple to manufacture, the easiest transportable, the most suitable for Indonesian baby and tropical weather,


Grashof Incubator definition and specifications

This simple incubator is addressed to help a marginal people who has limited acces to the hospital due to their incapability to pay hospital admission fee and others. So it should be suitable for home incubator without any air-conditioning system.

Grashof-incubator from University of Indonesia, unpatented-incubator

Using the principle of radiation, natural convection and natural circulation, the heat transfer, from the bulb lamp of 40-60 Watts,  can circulate naturally the airflow from the bottom fresh-air through the holes traversing the heating chamber upward to the baby’s cabin. After containing the cabin with the warm air, the air continue flowing to the outlet in the upper-side of cabin. With constant circulation of air, the temperature remain slightly inferior of  the human body temperature. Uniform laminair flow occurs due to the plate with many hole allowing hot air circulate naturally.

Upper part of the incubator made by acrylic with the thickness of 5 mm. Accesed to the cabin to place the baby, is located  in the opposite part of heating circulation. Bottom part of the incubator made of wood as a preference material. But other with lower thermal conductivity could also be used. Namely the most silent because there is no fan used in the system as a consequence there will be no device produce noise. Such a condition make the baby sleep tranquility.

The lightweight of the incubator around 15 kg in total become the most easiest portable and transportable equipment (the latest 12.5 kg only). The energy supplied has already been tested for Indonesian tropical weather. In certain  location in the mountain region, it shoud be better with 60 Watt bulb heater, that could be found anywhere in the elecrical shop and it is very cheap one.

Volumetric overall dimension should not exceed 50x50x60 cm3. A device of cut-off thermostat installed to keep the incubator in safety condition anytime anyplace.

Unpatented Grashof-incubator allow other Indonesian people can make it for an objective to assist marginal or poor community especially in the region far from the big cities or remote island. Utilisation outside Indonesia can be afforded only after discussion and consultation with the thermal group of University of Indonesia.

The newest design, the most natural, the most silent, the most cheapest, the most portable, the most saving-energy, of an infant-incubator for pre-emmies baby born, have already been, so far,  used since january 2012. And saving more than 60 babies around Jabodetabek to Bandung, with 100% succes without any problem under the university program of community services.

Any Indonesian can make it, can manufacture,  can even produce massively WITHOUT ANY PERMISSION. Everybody is free to get get benefit and get profit from Grashof-Incubator. The most important thing is… this equipment can save the Indonesian baby, warm them, give them alive. Make them healthy, make mother feel secure and save with no stress. With such a manner the  baby can recover the normal condition and stay healthy under the mother-supervision at home with love and care.

(Raldi, 11 December 2013)


Free home-incubator  services for Jakarta, Bogor, Tangerang, Depok, Bekasi



One response

Leave a Reply (boleh kasi komentar)

Isikan data di bawah atau klik salah satu ikon untuk log in:

Logo WordPress.com

You are commenting using your WordPress.com account. Logout /  Ubah )

Foto Google+

You are commenting using your Google+ account. Logout /  Ubah )

Gambar Twitter

You are commenting using your Twitter account. Logout /  Ubah )

Foto Facebook

You are commenting using your Facebook account. Logout /  Ubah )


Connecting to %s