Donald L Hall

US Patent:

49365053, Jun 26, 1990

Filed:

Dec 28, 1988

Appl. No.:

7/291104

Inventors:

Donald O. Hall - Louisville KY

International Classification:

F24H 306

US Classification:

237 17

Abstract:

An improved gas-fired heater for supplying heat to a space, such as a vehicle cab, and simultaneously, heat to the engine block for running the vehicle. A heat exchanger simultaneously heats a coolant which supplies heat to the engine block, and air to the vehicle cab. The gas-fired heater comprises an inner duct having opposite front and rear ends with a device at its front end for mixing and igniting a mixture of pressurized fuel and a combustion supporting gas that is discharged through an exhaust conduit from its rear end to an exhaust outlet located adjacent to its front end; an intermediate duct circumscribing the rear portion of the inner duct wherein the space between the inner and intermediate ducts receives a fluid to be heated; an outer duct surround the inner and intermediate duct and the exhaust conduit having opposite forward and rearward ends, respectively, located adjacent to the front and rear ends of the inner duct, and the outer duct having a fluid inlet opening proximate one of the opposite front and rear ends of the inner duct and a fluid outlet opening between the opposite front and rear ends of the inner duct; and a device for supplying a stream of pressurized fluid to the inlet opening of the outer duct for discharge through the outlet opening of the outer duct after having passed over the exteriors of and received heat from the inner and intermediate ducts.

US Patent:

47949082, Jan 3, 1989

Filed:

Jan 30, 1987

Appl. No.:

7/008757

Inventors:

Donald O. Hall - Louisville KY

International Classification:

F24H 308

US Classification:

126112

Abstract:

This invention provides improved gas-fired heater means for supplying heat to a space, such as a room, house, building, vehicle, or the like. Basically, the improved gas-fired space heater means comprises: a first duct-like member having opposite front and rear ends and provided adjacent its front end with means for receiving, mixing and igniting a mixture of pressurized fuel gas and a combustion supporting gas within its interior that is discharged through exhaust conduit means from its rear end to an exhaust outlet located adjacent to its front end; a second duct-like member, surrounding the first duct-like member and the exhaust conduit means and having opposite forward and rearward ends, with the forward and rearward ends of the second duct-like member being respectively located adjacent to the front and rear ends of the first duct-like member and the second duct-like member having a fluid inlet opening located proximate to one of the opposite front and rear ends of the first duct-like member and a fluid outlet opening located between the opposite front and rear ends of the first duct-like member; and means for supplying a stream of pressurized fluid to the inlet opening of the second duct-like member for discharge through the outlet opening of the second duct-like member after having passed over the exteriors of and received heat from the first duct-like member and the exhaust conduit means to supply heated fluid to a space via second conduit means interconnectable between that space and the outlet opening of the second duct-like member.

Address:

3922 Northwestern Pkwy, Louisville, KY 40212

VIN:

4T1BE46K47U024293

Make:

TOYOTA

Model:

CAMRY

Year:

2007