3-D Sprags and Rollers
EVA Roller Wrench

KC-135
NBL
SEM
Commercial Roller Wrench
Publications
Awards and Recognitions
Project Support
Project Personnel
Other Applications
Other Resources
More Information

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Who to Contact for More Information

For more information, feel free to contact the following people:

Information on three-dimensional (3-D) sprags

John Vranish
3-D sprag inventor
address:
NASA/Goddard Space Flight Center
Electromechanical System Branch
Greenbelt, MD 20771-0001 phone: 301.286.4031
fax: 301.286.1613
e-mail: john.m.vranish.1@gsfc.nasa.gov

Information on the commercial 3-D sprag wrench

Mike Wade
Senior Aerospace Engineering Technician
Commercial hand wrench inventor
address: NASA/Goddard Space Flight Center
Code 547.1
Greenbelt, MD 20771-0001 phone: 301.286.9101
fax: 301.286.1693
e-mail: michael.wade@gsfc.nasa.gov

Information on the 3-D roller commercial and EVA wrenches

Brian Roberts
NASA Graduate Student Research Fellow
EVA 3-D roller wrench engineer
address: Space Systems Laboratory
Neutral Buoyancy Research Facility
University of Maryland
College Park, MD 20742 phone: 301.405.7353
fax: 301.314.9738
e-mail: broberts@ssl.umd.edu

Transfer and commercialization of the technology

Darryl Mitchell
Commercial Program Manager
address: NASA/Goddard Space Flight Center
Technology Commercialization Office
Code 750.0
Greenbelt, MD 20771-0001 phone: 301.286.5169
fax: 301.286.0301
e-mail: darryl.mitchell@gsfc.nasa.gov

Patent licensing information

Keith Dixon
address: NASA/Goddard Space Flight Center
Patent Counsel
Code 750.0
Greenbelt, MD 20771-0001 phone: 301.286.9279
fax: 301.286.1713
e-mail: keith.l.dixon.1@gsfc.nasa.gov