1
Robert F Handschuh, Gary L Farley: Flushing system for removing lubricant coking in gas turbine bearings. The United States of America represented by the Secretary of the Army, William Randolph, March 30, 2004: US06712080 (26 worldwide citation)

A flushing system for flushing away any coking material which may have built up in the bearing of a gas turbine. Three fluid tanks respectively contain a solvent for dissolving the coked material, a cleaner and a lubricant. By means of a three-way valve, one of the fluids is provided to a supply pum ...


2
Robert F Handschuh: Thermal stress minimized, two component, turbine shroud seal. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, Gene E Shook, John R Manning, March 1, 1988: US04728257 (22 worldwide citation)

In a turbine machine, a two component shroud seal which maximizes insulation and sealing around the rotating turbine blades and made by independently fabricating each of the two components then joining them together is disclosed. The two components may be joined together at room temperature. The res ...


3
Mark A Stevens, Robert F Handschuh, David G Lewicki: Offset compound gear inline two-speed drive. The United States of America Represented by the Administrator of National Aeronautics and Space Administration, Robert H Earp III, March 11, 2014: US08668613 (2 worldwide citation)

A two-speed transmission having an input shaft and an output shaft, the transmission being capable of transitioning between fixed ratios, the high-range ratio being direct 1:1 and the low-range ratio being about 2:1. The transmission is a simple lightweight, yet robust, configuration utilizing only ...


4
Mark A Stevens, Robert F Handschuh, David G Lewicki: Offset compound gear inline two-speed drive. The United States of America represented by the Administrator of National Aeronautics and Space Administration, Howard M Cohn, Robert H Earp III, January 10, 2012: US08091445 (2 worldwide citation)

A two-speed transmission having an input shaft and an output shaft, the transmission being capable of transitioning between fixed ratios, the high-range ratio being direct 1:1 and the low-range ratio being about 2:1. The transmission is a simple lightweight, yet robust, configuration utilizing only ...


5
Robert F Handschuh, Gary D Roberts: Hybrid gear. The United States of America Represented by the Administrator of National Aeronautics and Space Administration, Robert H Earp III, March 29, 2016: US09296157

A hybrid gear consisting of metallic outer rim with gear teeth and metallic hub in combination with a composite lay up between the shaft interface (hub) and gear tooth rim is described. The composite lay-up lightens the gear member while having similar torque carrying capability and it attenuates th ...