James Henry Onnen

US Patent:

41276213, Nov 28, 1978

Filed:

Aug 4, 1977

Appl. No.:

5/821728

Inventors:

Albert H. Berst - Louisville KY
Richard L. Kline - Louisville KY
William A. Medcalf - Louisville KY
James H. Onnen - Louisville KY
Philipp P. Schupp - La Grange KY

Assignee:

American Air Filter Company, Inc. - Louisville KY

International Classification:

B01D 4706

US Classification:

261118

Abstract:

A quenching device for a hot, dirty gas stream, the quenching device being disposed between a flow-through duct carrying a hot, dirty gas stream and a housing to treat the gas, the quenching device including a pair of cooling water sources in parallel transversing the gas stream. The quenching device further includes means to prevent dirt build-up at the entrance of the housing due to entrainment of the dirt in the cooling water flowing through the gas stream.

US Patent:

40999386, Jul 11, 1978

Filed:

Feb 17, 1977

Appl. No.:

5/769521

Inventors:

James H. Onnen - Louisville KY

Assignee:

American Air Filter Company, Inc. - Louisville KY

International Classification:

B01D 4706

US Classification:

55230

Abstract:

A cleaning device for a mist eliminator disposed within a wet scrubbing apparatus includes a pair of revolvably mounted horizontally extending spray headers disposed on opposite sides of the mist eliminator. The spray headers are in communication with a spraying solution source.

US Patent:

39894657, Nov 2, 1976

Filed:

Apr 7, 1975

Appl. No.:

5/565419

Inventors:

James H. Onnen - Louisville KY

Assignee:

American Air Filter Company, Inc. - Louisville KY

International Classification:

B01J 1000
C01B 1758
G01N 2726

US Classification:

23260

Abstract:

A process and apparatus for treating industrial stack gases containing sulfur dioxide in the gas contact zone of a scrubbing tower with an aqueous medium containing a sulfur dioxide reactant material, which aqueous medium is subsequently removed from the contact zone and introduced into a reaction tank where the initial reaction product is oxidized to more stable reaction products. The process includes automatically controlling the pH of the liquid in the reaction tank, which automatic controlling includes monitoring the conditions in the reaction tank, comparing the information from the monitor to an optimum preselected condition and introducing a corrective portion of basic liquid into said reaction tank to attain the optimum preselected condition. The process further includes using the reaction tank as a supply reservoir for liquid introduced into the contact zone of the scrubbing tower, thus, insuring that the liquid introduced into the contact zone is of optimum pH for reaction.

US Patent:

41642112, Aug 14, 1979

Filed:

Oct 3, 1977

Appl. No.:

5/838821

Inventors:

James H. Onnen - Louisville KY

Assignee:

American Air Filter Company, Inc. - Louisville KY

International Classification:

F23L 1306

US Classification:

126285A

Abstract:

A damper assembly for use in gas-conducting conduits including a damper blade with a cavity therein for receiving a fluid and a plurality of outlet ports in flow communication with the cavity to provide means for providing a pressurized fluid seal around the damper blade when in a closed position.