Company Filing History:
2 out of 3 
1 out of 65 
1 out of 26 Years Active: 1998-2003
Title: John M Henshaw: Innovator in Testing Technologies
Introduction
John M Henshaw is a notable inventor based in Tulsa, OK, who has made significant contributions to the field of testing technologies. With a total of 3 patents to his name, Henshaw has developed innovative solutions that enhance the accuracy and reliability of various testing methods.
Latest Patents
One of Henshaw's latest patents is the "Creep Testing Fixture and Method." This invention provides a precise method for applying constant tensile stress to a creep test specimen, allowing for accurate measurement of creep. The fixture includes first and second mounting grips that hold opposite ends of the test specimen, supported by a frame that enables reciprocal movement. A tensile spring connects the grips, applying the necessary stress to the specimen.
Another significant patent is for "Puncture Resistance in Ultra-Thin Aluminum Pressure Vessels." This apparatus and method improve the measurement of puncture resistance in aluminum cans, simulating end-use punctures more accurately. The design features a horizontal penetrator driven by a falling weight, which impacts a pressurized aluminum can containing liquid. Various sensors, including a load cell and a displacement transducer, collect and analyze data from the impact, enhancing the repeatability of the tests.
Career Highlights
Henshaw has worked with prominent organizations such as the Automotive Composites Consortium and the University of Tulsa. His experience in these institutions has allowed him to refine his skills and contribute to advancements in testing technologies.
Collaborations
Throughout his career, Henshaw has collaborated with notable individuals, including Edward M Hagerman and Daniel Quinn Houston. These partnerships have fostered innovation and the development of new testing methodologies.
Conclusion
John M Henshaw's contributions to testing technologies through his patents demonstrate his commitment to innovation and precision. His work continues to influence the field, making significant strides in the accuracy of testing methods.