End closure assembly for oil-filled heater
AssigneeLakewood Engineering and Manufacturing Co.
InventorsStephen C. Kirchner, Andrei Illies
Life of this patent
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Abstract
An oil-filled heater (22) comprises a plate (34) welded onto the top opening in a fin of the heater. The plate (34) has a threaded opening (36), and a bolt (38) is threaded into the threaded opening (36) to seal the top opening. The bottom opening of the fin is sealed by a heating element (42) welded onto the fin. The present invention further relates to a method of filling the oil-filled heater (22).
Claims6
In an electric oil-filled heater having a top end closure assembly to seal a top opening in a fin of the heater, wherein the top end closure assembly comprises:
- a plate having a threaded opening, wherein the plate is welded onto the fin;
- a bolt threaded into the threaded opening;
- and,
- further comprising a heating element having a flange directly welded to a bottom opening in the fin of the heater.
An electric oil-filled heater comprising;
- a plurality of fins welded together;
- a plate having a threaded opening, wherein the plate is welded onto a top opening in one of the plurality of fins;
- a bolt threaded into the threaded opening to seal the top opening;
- and
- a heating element having a flange directly welded to a bottom opening in the one of the plurality of fins to seal the bottom opening.
Dependencies are inferred from the claim text.