Howard Houston Harris

US Patent:

6577817, Jun 10, 2003

Filed:

Jul 3, 2001

Appl. No.:

09/897036

Inventors:

Howard Harris - Ashland City TN

Assignee:

Howard Harris Builder - Nashville TN

International Classification:

F24H 110

US Classification:

392481, 392479, 392496, 392498

Abstract:

A pressureless electric water heater for domestic use having a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil immersed in the heat transfer liquid. The heat transfer liquid is heated by an electric heating element that extends down a double-walled top. The inner walls and the outer walls of the tank and the upper and lower walls of the top may be spaced apart using any convenient spacing distance, in order to accommodate an amount of thermal insulation, such as fiberglass, foam, cellulose or cardboard, preferably includes open air spaces between the linings of insulation or between a lining of insulation and a wall or surface.

US Patent:

20100154772, Jun 24, 2010

Filed:

Oct 24, 2009

Appl. No.:

12/605332

Inventors:

Howard Harris - Nashville TN, US
Jane Harry - Ashland City TN, US

International Classification:

F24C 9/00
F24J 3/00

US Classification:

126247, 122 26

Abstract:

A fluid-charged heating device comprising a cylindrical housing in fluid communication with a housing extension; a cylindrical rotor disposed centrally and mounted for rotation in said cylindrical housing in spaced relation to provide an annular passage for heat transfer fluid to recirculate between the cylindrical housing and the housing extension. The rotor has a surface with a continuous helical groove along the longitudinal axis of the rotor and rotation of the helically grooved rotor causes fluid shearing, heat-generating cavitation, and recirculation of the heat transfer fluid between the housing and the housing extension.

US Patent:

61988790, Mar 6, 2001

Filed:

Dec 30, 1999

Appl. No.:

9/475282

Inventors:

Howard Harris - Ashland City TN

Assignee:

Howard Harris Builders, Inc. - Ashland City TN

International Classification:

F24H 120

US Classification:

392451

Abstract:

A pressureless electric water heater for domestic use has a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil immersed in the heat transfer liquid. The heat transfer liquid is heated by an electric heating element that extends down from a hinged tank top. Cold water flowing through the immersed coil is heated by the heat transfer liquid and exits the coil as hot water. The hinged top allows easy access to the interior of the tank and to the heating element, further easing access and replacement thereof. Sedimentation in the tank is minimized because the tank water is rarely replaced. Sedimentation in the coil is reduced because pressurized water flows through the coil when hot water is required and continuously cleanses the tubing. A sensor block is used to activate the heating element whenever water is introduced into the coils. An automatic fill valve maintains the tank level.

US Patent:

61731188, Jan 9, 2001

Filed:

Jun 15, 1999

Appl. No.:

9/333261

Inventors:

Howard Harris - Ashland City TN

Assignee:

Howard Harris Building Inc. - Ashland City TN

International Classification:

F24H 110
F24H 120

US Classification:

392451

Abstract:

A pressureless electric water heater for domestic use has a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil immersed in the heat transfer liquid. The heat transfer liquid is heated by an electric heating element which extends down from a hinged tank top. Cold water flowing through the immersed coil is heated by the heat transfer liquid and exits the coil as hot water. The hinged top allows easy access to the interior of the tank and to the heating element, further easing access and replacement thereof. Sedimentation in the tank is minimized because the tank water is rarely replaced. Sedimentation in the coil is reduced because pressurized water flows through the coil when hot water is required and continuously cleanses the tubing. A sensor block is used to activate the heating element whenever water is introduced into the coils. An automatic fill valve maintains the tank level.

US Patent:

58388796, Nov 17, 1998

Filed:

Dec 27, 1995

Appl. No.:

8/579424

Inventors:

Howard Harris - Ashland City TN

Assignee:

Howard Harris Builders, Inc. - Ashland City TN

International Classification:

F24H 122

US Classification:

392451

Abstract:

A pressureless electric water heater for domestic use has a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil immersed in the heat transfer liquid. The heat transfer liquid is heated by an electric heating element which extends down from a hinged tank top. Cold water flowing through the immersed coil is heated by the heat transfer liquid and exits the coil as hot water. The hinged top allows easy access to the interior of the tank and to the heating element, further easing access and replacement thereof. Sedimentation in the tank is minimized because the tank water is rarely replaced. Sedimentation in the coil is reduced because pressurized water flows through the coil when hot water is required and continuously cleanses the tubing.