James Thurston Abbott, 89Boone, NC

5179933, Jan 19, 1993

Nov 7, 1991

7/788899

Robert C. McCrillis - Durham NC
Nelson L. Butts - Hillsborough NC
Wade H. Ponder - Raleigh NC
James H. Abbott - Cary NC

The United States of America as represented by the Administrator of the
Environmental Protection Agency - Washington DC

F24C 114

126 77

A single chamber wood stove has primary and secondary combustion zones in direct fluid flow communication with each other. Air from outside the stove is supplied to the primary and secondary combustion zones. Gaseous hydrocarbon fuel from a source located outside the stove is selectively supplied to the secondary combustion zone and is ignited by a glow plug in the secondary combustion zone in response to a signal derived by a temperature detector in the secondary zone. The gaseous hydrocarbon fuel flows to the secondary combustion zone at a rate in the range of about 0. 25 to 3 cubic feet per hour. The fuel is supplied to the secondary zone when the secondary zone temperature is above carbon monoxide ignition temperature.

5322052, Jun 21, 1994

Jan 19, 1993

8/005958

Robert C. McCrillis - Durham NC
Wade H. Ponder - Raleigh NC
Nelson L. Butts - Hillsborough NC
James H. Abbott - Cary NC

The United States of America as represented by the Administrator of the
U.S. Environmental Protection Agency - Washington DC

F24C 114

126503

Particulate emissions from a wood fire in a fireplace having a baffle for preventing the direct flow of fluid into the flue from the wood fire are reduced by locating a hydrocarbon gas pilot source in proximity to the baffle. Ignited gas from the pilot combines particulate emissions from the wood fire while they are in the fireplace and before they reach the flue. Air from outside of the fireplace is supplied into proximity with ignited pilot gas so the outside air and the ignited pilot gas mix. A flame sensor for the pilot controls the flow of gas to the pilot source and ignition of the pilot source.

5476640, Dec 19, 1995

Aug 25, 1994

8/296110

James H. Abbott - Cary NC
Dennis C. Drehmel - Cary NC
Geddes H. Ramsey - Chapel Hill NC

The United States of America as represented by the Administrator of the
U.S. Environmental Protection Agency - Washington DC

B01D 5000
F01N 310

422171

Low temperature apparatus for the destruction of low volume time varying organic air toxins in air streams utilizing non-catalytic glass beads in parallel conduits heated by hot gas flow around the conduits and flowing the air stream through the conduits and controlling the hot gas flow in response to toxin levels in the air stream.

5236672, Aug 17, 1993

Dec 18, 1991

7/809792

Carlos M. Nunez - Durham NC
Geddes H. Ramsey - Chapel Hill NC
Wade H. Ponder - Raleigh NC
James H. Abbott - Cary NC

The United States of America as represented by the United States
Environmental Protection Agency - Washington DC

B01J 1912

42218604

Apparatus and method for controlling volatile organic compounds and air toxics in a contaminated fluid flow through use of an excited species flow generated and introduced into the contaminated fluid flow to convert the contaminants into non-toxic compounds. Tungsten electrodes and an alternating current are used in the excited species generator.