Beds – With heating or cooling
Patent
1994-03-08
1995-09-12
Trettel, Michael F.
Beds
With heating or cooling
5462, 62261, A61F 703
Patent
active
054487889
ABSTRACT:
A thermostat controlled mattress includes a mattress unit having an underlay, a surface cover and a curved circuit. A water circuit tube connects to the curved circuit so as to allow water to be introduced into the mattress unit with the aid of a pump. Water is circulated between the mattress unit and a water storage box via the water circuit tube. A sensor is operatively arranged with respect to the water storage box to sense the temperature and quantity of water contained in the water storage box and sends a signal to a thermostat electric circuit. An aluminum reservoir for the water is connected to the curved circuit of the mattress unit and the water circuit tube. A thermoelectric element is connected to the reservoir and the power supply to heat or cool the water. Water is circulated in the water circuit tube between the curved circuit of the mattress unit and the water storage box, through the reservoir. The water temperature is controlled based on signals generated by the thermostat electric circuit, which activates the power supply operatively connected to the thermoelectric element. A heat sink and a fan may be arranged adjacent to the thermoelectric element such that the fan blows a current of air onto the heat sink.
REFERENCES:
patent: 800967 (1905-10-01), Young et al.
patent: 2938356 (1960-05-01), McMahon
patent: 3283520 (1966-11-01), Donohue et al.
patent: 3648469 (1972-03-01), Chapman
patent: 4907308 (1990-03-01), Leininger et al.
patent: 5146633 (1992-09-01), Kim et al.
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