Patent ID: 11892198
Assignee: NATIONAL MACHINE COMPANY
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 20:
21. A heater comprising:
a hollow body configured to couple to an interior of a fluid tank, the hollow body having an inlet and an outlet that is in fluid communication with the inlet, the inlet being arranged at a bottom end of the hollow body and the outlet spaced away from the inlet towards a top end of the hollow body;
a heating element arranged within the hollow body, the heating element having a heating surface configured to heat fluid flowing through the hollow body;
a cavity formed between the heating surface of the heating element and an interior surface of the hollow body; and
an outlet tube extending external to the hollow body from the outlet of the hollow body and towards the inlet of the hollow body, wherein the outlet tube is configured to deposit the fluid heated by the heating element to a location within the fluid tank that is below a fluid level line, and wherein the outlet tube is in fluid communication with the inlet of the hollow body,
wherein the hollow body includes a hollow tube and an adapter sleeve arranged at a lower end of the hollow tube, and wherein the inlet of the hollow body is arranged in the adapter sleeve.