Dwaine S Bundy

US Patent:

57360499, Apr 7, 1998

Filed:

Feb 6, 1997

Appl. No.:

8/796424

Inventors:

Dwaine S. Bundy - Ames IA
Ken Bokor - Blenhein, CA
Edward G. Andrews - Sioux City IA

Assignee:

Iowa State University Research Foundation, Inc. - Ames IA

International Classification:

C02F 1106

US Classification:

210620

Abstract:

A method for controlling odor in a waste water lagoon comprises the steps of aerating a top horizontal layer of a lagoon adjacent its upper surface at a depth of approximately 12 to 24 inches by introducing air through a plurality of nozzles submerged in the layer to create a plurality of air bubbles in the layer. The nozzles are moved horizontally through the layer. A device for controlling the odor in waste water lagoons includes a support structure with an elongated boom operatively secured to the support structure and extending outwardly therefrom to operatively contact water in an adjacent lagoon. Compressed air is delivered through a plurality of downwardly extending nozzles on the boom into a layer of water on the top of the lagoon approximately 12 to 24 inches deep. Power elements are secured to the boom to cause the boom to move horizontally with respect to the lagoon while the compressed air is being delivered through the nozzles.

US Patent:

55797199, Dec 3, 1996

Filed:

Apr 6, 1995

Appl. No.:

8/418006

Inventors:

Steven J. Hoff - Ames IA
Mark S. Honeyman - Ames IA
James D. McKean - Ames IA
Emmett J. Stevermer - Ames IA
Dwaine S. Bundy - Ames IA
Fernando Perez-Munoz - Ames IA
Steven E. Bryce - Souderton PA
William E. Backhaus - Ida Grove IA

Assignee:

Iowa State University Research Foundation, Inc. - Ames IA

International Classification:

A01K 500

US Classification:

119 5102

Abstract:

A gestation sow feeding system has a sow bedding enclosure, a gated scale weighing station, an alley connecting the scale weighing station with two separate feeding pens having entry and exist gates, and a bypass gate connecting the alley and the bedding enclosure. The traffic of sows through the system is monitored and controlled by a computer which controls the gates of the system, measures the weight and average daily gain of each sow weighed, and directs the weighed sow to the feeding pen for a ration of feed to permit the sow to adjust to a targeted average daily weight stored in the computer.

US Patent:

57673853, Jun 16, 1998

Filed:

Feb 5, 1997

Appl. No.:

8/794873

Inventors:

Dwaine S. Bundy - Ames IA
Wen-Hua Huang - Vancouver, CA
Steven J. Hoff - Jewell IA
Qianbao Liu - Mayaguez, PR
Xiwei Li - Ames IA

Assignee:

Iowa State University Research Foundation, Inc. - Ames IA

International Classification:

G01N 126

US Classification:

73 2334

Abstract:

An automated forced-choice dynamic-dilution olfactometer has an odor evaluation module having two or more panelist stations, with a plurality of sniffing ports at each station. At least one signal element at each station is connected to a data control unit. Separate air lines are connected to one each of the sniffing ports at each station. One of the air lines has an odor introduction port. The method of detecting an odorous stream of air in an automated forced-choice dynamic-dilution olfactometer and method of operating the same olfactor system comprises the steps of providing an odor evaluation module having at least two panelist stations; providing a plurality of sniffing ports at each station; providing a data control unit and connecting the control unit to a signal element at each station, providing separate air lines to one each of the sniffing ports at each station so that individual panelists at each station can separately sniff the air in each line, introducing an odor into one of the air lines, having the panelists at each station sniff each sniffing port to determine which air line contains the odor, and having each panelist actuate the signal element to advise the data control system as to which air line contains the odor.