1
Jonathan S Hager, Kellan P Geck, William L Giesler, David M Mathis: Oil seal for a high speed rotating shaft. AlliedSignal, Jerry J Holden, John R Rafter, June 10, 1997: US05636848 (37 worldwide citation)

An improved oil seal is provided for sealing passage of rotatable shaft through an end wall of a bearing housing in a turbomachine or the like, wherein the shaft is rotatably supported within the bearing housing by oil-lubricated bearings. The improved oil seal comprises a slinger rotor mounted on t ...


2
Robert E Phillips, David M Mathis, Ray Edwards Jr, Albert Lopez: Culturette safety sleeve. Becton Dickinson and Company, Nanette S Thomas, October 26, 1993: US05256537 (17 worldwide citation)

The present invention is a device and method for collecting and transporting biological specimens. The device provides an environment for maintaining substantial validity of a specimen during transport. The device comprises a tubular housing with an ampoule containing medium, a specimen collector an ...


3
William L Giesler, Todd A Langston, Marvin K Collins, Ronald A Peck, David M Mathis, Cynthia S Byers: Air turbine starter enhancement for clearance seal utilization. Honeywell International, Ingrassia Fisher & Lorenz, March 6, 2007: US07186081 (12 worldwide citation)

An air turbine starter (ATS) configured to couple to a gearbox, the ATS including an output shaft having an outer peripheral surface, a gearbox section, and an ATS section, the gearbox section configured to be disposed within, and coupled to, the gearbox and the ATS section configured to be disposed ...


4
Steven W Trimble, Robert Bons, David M Mathis: Method for operating a closed Brayton engine and engine adapted for use with method. Allied Signal, Joseph R Black, James W McFarland, Robert A Walsh, July 21, 1992: US05131231 (10 worldwide citation)

A process for operating a closed Brayton-cycle engine (14) at two substantially differrent levels of output power by selectively changing the molecular weight of the working fluid, and an engine adapted for use with the process.


5
Brent L Bristol, Louie T Gaines, William A Facinelli, David M Mathis: Air turbine starter having a force balanced, pressure energized, weighted check valve. Honeywell International, Ingrassia Fisher & Lorenz, April 25, 2006: US07033134 (9 worldwide citation)

An air turbine starter is provided that includes a check valve assembly for placement between a first environment, at least a portion of which is at a first pressure (P1), and a second environment, at least a portion of which is at a second pressure (P2), wherein the difference between the first and ...


6
Robert E Phillips, David M Mathis, Ray Edwards Jr, Albert Lopez: Culturette safety sleeve. Becton Dickinson and Company, Nanette S Thomas, Susan A Capello, June 20, 1995: US05425915 (8 worldwide citation)

The present invention includes a sleeve for use with a device for collecting and transporting biological specimens. The sleeve comprises a tubular member for containing the bottom portion of the collection device and a lever so as to exert pressure to the collection device so as to break the ampoule ...


7
Scott C Meyers, David M Mathis, Eugene A Zanelli: Underwater vehicle with improved jet pump propulsion configuration. AlliedSignal, Jerry J Holden, John R Rafter, November 12, 1996: US05574246 (8 worldwide citation)

An underwater vehicle such as a torpedo has a jet pump propulsion system. A high speed pump is located inside a rigid cylindrical housing of the torpedo near an end thereof. A water inlet communicates with the pump as does a water outlet provided at the aft end of the rigid housing via a water passa ...


8
David M Eschborn, Paul S Evans, Casey Hanlon, Calvin C Potter, Glenn H Lane, Gary A Farnsworth, Louie T Gaines, David M Mathis: Aircraft accessory monitor. Honeywell International, Ingrassia Fisher & Lorenz, July 31, 2007: US07251550 (7 worldwide citation)

Methods and apparatus are provided for monitoring an aircraft accessory. The apparatus comprises a processor associated with said aircraft accessory, a transducer coupled to said processor and operable to produce parametric data relating to said aircraft accessory and a memory coupled to said proces ...


9
Louie T Gaines, Kellan P Geck, Todd A Langston, David M Mathis, Jennifer L Zonneveld: Accessory lubrication system for a turbine plant. Honeywell International, Ingrassia Fisher & Lorenz, May 6, 2008: US07367427 (7 worldwide citation)

A lubrication system for supplying lubricants between two environments is provided. The first environment is disposed within a first housing and the second environment is disposed within a second housing having a supply opening and an exhaust opening. The system includes a lubricant supply tube disp ...


10
Paulynn Dong, Kellan P Geck, David M Mathis, James A Hall, David P Gentile, Jennifer L Zonneveld: Shroud for an air turbine starter. Honeywell International, Ingrassia Fisher & Lorenz, June 19, 2007: US07232289 (7 worldwide citation)

A shroud is provided for separating an air turbine starter housing from a turbine wheel. The shroud comprises a ring and a bumper. The ring is configured to be disposed between the turbine wheel and the housing and has an outer peripheral surface and an inner peripheral surface that defines a flow c ...