1
Timmons S McClanahan, Michael C Crim: Simple and compact low-temperature power cycle. Tennessee Valley Authority, Sughrue Mion PLLC, June 22, 2004: US06751959 (73 worldwide citation)

A simple, compact, and relatively efficient thermodynamic power cycle system and process for extracting heat from a heat source stream and converting a portion of the heat to mechanical power. The system and process are composed of the same series of four processing units or steps found in the most ...


2
Glenn M Blouin: Method for applying coatings to solid particles. Tennessee Valley Authority, Robert A Petrusek, November 9, 1976: US03991225 (66 worldwide citation)

The apparatus provides a homogeneous (with respect to particle size), dense, mass of sized particles in random motion so that highly uniform coatings of the same or of different solids can be applied to each particle by conventional spray-coating with the liquified coating material(s). The apparatus ...


3
Leslie L Behrends: Reciprocating subsurface-flow constructed wetlands for improving wastewater treatment. Tennessee Valley Authority United States, Robert A Petrusek, January 26, 1999: US05863433 (53 worldwide citation)

This invention relates to the design and operation of paired subsurface flow constructed wetlands in which significant improvements in wastewater treatment are possible. These improvements are brought about by coupling paired subsurface flow wetlands and using reciprocation, whereby adjacent cells a ...


4
Sandra J Meischen, Vincent J Van Pelt: Method to control mercury emissions from exhaust gases. Tennessee Valley Authority, Peter D Olexy, October 24, 2000: US06136281 (51 worldwide citation)

The present invention relates to a method to catalyze the oxidation of Hg(0) in a flue gas stream prior to standard emissions control equipment. The oxidized mercury has been found to be more condensable than Hg(0) and consequently more easily removed from the gas phase. Accordingly, mercury in its ...


5
William E Dressler, Lane D Brown, Robert G Walker, Michael J Housh: Heating, cooling, and dehumidifying system with energy recovery. Tennessee Valley Authority, Donald R Schoonover, September 21, 1999: US05953926 (50 worldwide citation)

An improved heating and cooling system is provided which also includes dehumidification and energy recovery capability. The system includes two or more heat pump circuits operating singly or in concert to provide heating, singly or in concert in reverse to provide cooling, or concurrently but opposi ...


6
Blaine W Roberts, William H Zielke, Arun Puri, Michael Jirinec, Frank Novak: Rotor repair system and technique. Tennessee Valley Authority, Sughrue Mion Zinn Macpeak & Seas PLLC, June 22, 1999: US05914055 (47 worldwide citation)

A system for repairing worn, distorted, cracked, or degraded portions of high temperature rotors such as those used in high-pressure and reheat steam turbines is disclosed. The repairs are applicable to low alloy steels generally described in ASTM Specification A-470 classes 3, 7, and 8. Explicit co ...


7
Cecil P Harrison, Cullen G Tittle: Agglomeration of gypsum, limestone, or gypsum-limestone mix. Tennessee Valley Authority, Robert A Petrusek, September 4, 1990: US04954134 (41 worldwide citation)

An improved process for economically and effectively granulating solid, finely-divided, particulate feedstock comprising phosphogypsum, limestone, or mixtures comprising sulfogypsum, natural or mineral gypsum, or mixtures thereof and limestone and having from about 80 to 95 percent by weight of such ...


8
Vincent J Van Pelt, Sandra J Meischen: Determination of total mercury in exhaust gases. Tennessee Valley Authority, Robert A Petrusek, March 9, 1999: US05879948 (35 worldwide citation)

The present invention relates to a system, apparatus, and process to reduce the oxidized mercury in an exhaust gas to elemental mercury and to prevent its reoxidation by congeneric components in the exhaust gas prior to the photometric measurement of said elemental mercury. In the process, the sampl ...


9
Harold B Cummings III, Frank A Deviney: Insulation power factor alarm monitor. Tennessee Valley Authority, Robert A Petrusek, July 12, 1988: US04757263 (33 worldwide citation)

The present invention teaches a technique and provides for apparatus eminently useful for the continuous, simultaneous monitoring of the insulation quality of one or more pieces of high voltage ac electrical equipment, while the equipment is in service and connected to its normal high voltage source ...


10
John W Larsen: Conversion of waste rubber to fuel and other useful products. Tennessee Valley Authority, Robert A Petrusek, December 7, 1976: US03996022 (32 worldwide citation)

Heretofore waste rubber, a substantial amount of it in the form of used automobile tires, has been buried, burned, or otherwise disposed of in manners and by means totally inconsistent with good ecological practices and considerations. Now, such waste or scrap rubber, both natural and synthetic, can ...