Wayne Tuttle received the for Patent 10,139,047 for stress relieved welds in positive expulsion fuel tanks with elastomeric diaphragm dated November 27, 2018.
Ian Ballinger received: Patent 10,088,103 for a method of fabricating space satellite tank components utilizing additive manufacturing and spin forming dated October 2, 2018.
Keystone Engineering’s Wayne Tuttle has been granted United States Patent 9,840,752 for a new method for performing Post Weld Heat Treatment (PWHT) on the company’s line of spacecraft propellant tanks and related products. This new method allows welds to be heat retreated while protecting sensitive internal components such as elastomeric bladders from exposure to excessive temperatures. Prior art required heavier weld lands to make up for the reduced strength of a non-treated weld. Utilizing this new technology, Keystone can provide elastomeric bladder and diaphragm tanks that are lighter than those of its competitors.
Keystone Engineering Company
Ian Ballinger: President/Chief Technology Officer
Manoj Bhatia: VP of Business Development
Bob Manning, Ph.D: PMD and Fluids Analyst
Will be attending The 2017 AIAA Propulsion and Energy Forum and Exposition, 10th July 2017 in Atlanta Georgia
Dr. Bob Manning will be presenting his paper entitled “Fast Boundary Integral Method for Slosh and Microgravity Fluid Dynamics”.