Location History:
- Hot Springs, AR (US) (1978)
- Winston-Salem, NC (US) (2000 - 2001)
Company Filing History:
1 out of 45 
2 out of 832,812 Years Active: 1978-2001
Title: John K Fletcher: Innovator in Acoustical Insulation
Introduction
John K Fletcher is a notable inventor based in Winston-Salem, NC (US). He has made significant contributions to the field of acoustical insulation, holding a total of 3 patents. His innovative work focuses on creating effective sound barriers that enhance acoustic performance in various applications.
Latest Patents
Fletcher's latest patent is for an acoustical insulating barrier and method of making the barrier. This invention features a needled composite acoustical barrier that includes a non-woven first layer of needleable textile fibers. The first layer has a thickness ranging from about 0.01 inch to 0.5 inch and a density between about 1.0 and 10 lbs. per cubic foot. Additionally, a non-woven, low-density second layer of textile fibers is provided, with a thickness of between about 0.2 inch and 5 inches and a density of between about 0.1 and 4.0 lbs. per cubic foot. An intermediate acoustical barrier layer, which is high-density, is situated between the first and second layers. This layer has a thickness of between about 0.01 inch and 0.5 inch and a density of at least 50 lbs. per cubic foot. The barrier also features a continuous film of high-density needleable polymeric material and a plurality of needled stitches that extend through the layers, enhancing the overall acoustic performance.
Career Highlights
Throughout his career, John K Fletcher has worked with various companies, including Lydall, Inc. His experience in the industry has allowed him to develop innovative solutions that address the challenges of sound insulation.
Collaborations
Fletcher has collaborated with notable individuals in his field, including John J Hiers. These partnerships have contributed to the advancement of his inventions and the development of new technologies in acoustical insulation.
Conclusion
John K Fletcher's contributions to acoustical insulation through his innovative patents demonstrate his commitment to improving sound barrier technologies. His work continues to influence the industry and pave the way for future advancements in acoustical solutions.