1
Richard K Fisher Jr: Hydraulic turbine aeration apparatus. Voith Hydro, Ostrolenk Faber Gerb & Soffen, October 25, 1988: US04780051 (21 worldwide citation)

An apparatus for aerating water discharging from a hydraulic turbine comprises an air distribution apparatus secured to the trailing edges of a turbine runner. The air distribution apparatus comprises a manifold which contains a bounded air channel extending the length of the runner blade trailing e ...


2
Richard K Fisher Jr, Richard A Johnson, Ronald E Deitz: Method and apparatus for optimizing performance of a kaplan turbine. Voith Hydro, Foley & Lardner, May 19, 1998: US05754446 (15 worldwide citation)

A method and system for optimizing performance of a Kaplan turbine power generating unit are provided wherein an optimal "N-dimensional" virtual cam is populated with gate and blade positional settings producing maximum power output for a set of N operating parameters. The preferred parameters inclu ...


3
Richard K Fisher Jr, Ronald E Deitz: Method and apparatus for optimizing performance of a pump-turbine. Voith Hydro, Foley & Lardner, January 26, 1999: US05864183 (15 worldwide citation)

A technique is disclosed for optimizing performance of a pump-turbine unit while operating normally in the pumping mode by identifying gate positions resulting in optimization of certain parameters of interest. Influences of gate positions on the optimized parameters is determined and used to evalua ...


4
Richard K Fisher Jr, Robert G Grubb, Joseph M Cybularz, Richard K Donelson, Mark E Kennell, Wolfgang Heine: Hydro-turbine runner. Voith Hydro, Foley & Lardner, September 21, 1999: US05954474 (13 worldwide citation)

A turbine, disposed in water flowing therethrough, includes a hub and associated runner blades. Each blade comprises an inner surface and a distal outer surface, a leading edge and a trailing edge separated by a water directing surface. Each blade is rotatable relative to the hub about a blade rotat ...


5
Richard K Fisher Jr: Draft tube for hydraulic turbine. Allis Chalmers Corporation, Timothy R Conrad, May 7, 1985: US04515524 (13 worldwide citation)

A draft tube for discharging fluid from a hydraulic turbine is disclosed as having a draft tube wall surrounding a discharge passage which diverges from a turbine runner to a discharge opening. The draft tube includes a first region downstream of the runner which has a rate of divergence less than t ...


6
James R Beyer, Richard K Fisher Jr, Robert G Grubb, Christian G Cabou: Hydraulic turbine for enhancing the level of dissolved gas in water. Voith Hydro, Foley & Lardner, July 20, 1999: US05924842 (11 worldwide citation)

A turbine, adaptable to enhance the levels of dissolved gas such as oxygen in water flowing therethrough, includes a rotating shaft and a runner secured to the shaft. The runner includes a crown, a band and a plurality of runner blades. Each blade is defined by an inner edge and a distal outer edge, ...


7
Joseph M Cybularz, Richard K Fisher Jr, Gary F Franke, Robert G Grubb: Dissolved gas augmentation with mixing chambers. Voith Hydro, Foley & Lardner, October 20, 1998: US05823740 (10 worldwide citation)

A shrouded turbine for enhancing the levels of dissolved gas such as oxygen in water flowing therethrough. The turbine comprises a rotatably mounted runner, a stationary discharge ring and a band seal. The runner includes a crown, a band, and a plurality of blades extending between the crown and the ...


8
James R Beyer, Richard K Fisher Jr, Robert G Grubb: Hydraulic turbine for enhancing the level of dissolved gas in water. Voith Siemens Hydro Power Generation, Foley & Lardner, June 19, 2001: US06247893 (10 worldwide citation)

A turbine, adaptable to enhance the levels of dissolved gas such as oxygen in water flowing therethrough, includes a rotating shaft and a runner secured to the shaft. The runner includes a crown, a band and a plurality of runner blades. Each blade is defined by an inner edge and a distal outer edge, ...


9
Joseph M Cybularz, Richard K Fisher Jr, Gary F Franke, Robert G Grubb: Dissolved gas augmentation with mixing chambers. Voith Hydro, Foley & Lardner, July 20, 1999: US05924844 (9 worldwide citation)

A turbine installation for regulating the levels of dissolved gas such as oxygen in water flowing therethrough. The turbine installation comprises a runner rotatably mounted within a stationary casing. The runner includes a crown, a band, and a plurality of blades extending between the crown and the ...


10
James R Beyer, Richard K Fisher Jr, Robert G Grubb: Aeration through runner. Voith Hydro, Foley & Lardner, March 9, 1999: US05879130 (9 worldwide citation)

A turbine, adaptable to enhance the levels of dissolved gas such as oxygen in water flowing therethrough, includes a rotating shaft and a runner secured to the shaft. The runner includes a crown, a band and a plurality of spaced apart runner blades. Each blade has a water directing surface defined b ...