Supports – Counterbalance weights
Patent
1979-11-02
1982-06-08
Foss, J. Franklin
Supports
Counterbalance weights
2483112, A47G 2900
Patent
active
043336264
ABSTRACT:
An aquarium heater that is disposed on an outside surface of the aquarium tank for maintaining the water in the tank at a selectable temperature. The heater is preferably supported by a hanger or holder from a top edge of the tank and has a heat transfer plate disposed in intimate contact with a side or back wall of the tank. The heater includes, in addition to the heat transfer plate, a plastic or phenolic housing, a heating element, insulation and a settable thermostat contained in a temperature-sensing section of the housing. When the tank water is below a threshold temperature the thermostat closes coupling power to the heating element, which is preferably a rope-type resistance heater covered by a metal foil blanket, and when the temperature of the water reaches the threshold the thermostat temporarily opens to uncouple power to the heating element. In addition to the temperature sensing section of the housing there is also provided a heating section in which the heating element resides. The thermostat in the temperature sensing section is isolated from the heating section. Furthermore, the thermostat is in direct heat exchange relationship to the portion of the heat transfer plate overlying the heat sensing section of the housing.
REFERENCES:
patent: 1898835 (1933-02-01), Henderson
patent: 2487645 (1949-11-01), Gershon
patent: 2576688 (1951-11-01), Landgraf
patent: 2736791 (1956-02-01), Krah et al.
patent: 3007177 (1961-11-01), Jackson et al.
patent: 3301518 (1967-01-01), Yetter et al.
patent: 3477679 (1969-11-01), Lovitz
patent: 3557344 (1971-01-01), Decrosta
patent: 3842241 (1974-10-01), Isaacson
patent: 3842981 (1974-10-01), Lambert
Foss J. Franklin
Rolf C. Hagen (USA) Corp.
LandOfFree
Aquarium heater does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aquarium heater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aquarium heater will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-550677