Control system for a portable instant hot water heater
AssigneeThe Coleman Company, Inc.
InventorNorris Richard Long
Life of this patent
Estimating the term…
Abstract
A portable instant water heater. Water is delivered to a base unit of the instant hot water heater by a pump that draws water from a reservoir through a flow control valve. The water flows into a pre-heater that wraps around a base of the burner and that is heated by the burner. Water is heated in a heat exchanger and then exits the base unit through an outlet spout that swings out from the base unit to dispense water and that may be stored and locked into position in a handle for the base unit. The flow control valve may lower the flow of water through the heat exchanger, so the water has more time to absorb heat and to get hotter. The base unit includes a single control knob that turns on the pump and the burner and operates the flow control valve.
Claims36
An instant hot water heater, comprising:
- a base unit for heating water;
- and
- an adapter for attaching between a source of water flow and the base unit, the adapter comprising:
- a device for starting and stopping a flow of water from the adapter to the base unit;
- and
- an apparatus for maintaining a desired pressure of water provided to the base unit.
An instant hot water heater, comprising:
- a base unit;
- a heat exchanger in the base unit for heating water;
- a combustion device for heating the heat exchanger;
- and
- a control system for effecting safe operation of the base unit.
An instant hot water heater, comprising:
- a base unit for heating water;
- and
- a foot pedal for controlling operation of the base unit.
Dependencies are inferred from the claim text.