This inventor holds 5 USPTO granted patents. Top assignees: Delco Electronics Corporation, Gm Global Technolgoy Operations, Inc.. Active years: 1981-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
4 out of 788 
1 out of 31,934 
Years Active: 1981-1999
Title: Innovations of John M Hart, Jr.
Introduction
John M Hart, Jr. is a notable inventor based in Kokomo, IN (US). He has made significant contributions to the field of pressure sensor technology, holding a total of 5 patents. His work has been instrumental in advancing the design and functionality of pressure sensors used in various applications.
Latest Patents
One of his latest patents is a method of making a thick film pressure sensor. This invention includes a media-compatible, high-pressure transducer cell, a rugged sensor assembly incorporating the cell, and a method for its production. The pressure cell generally consists of a metal body with a diaphragm, at least one dielectric layer on the diaphragm, and at least one thick-film piezoresistive element for sensing deflection of the diaphragm. The metal body is preferably formed of stainless steel alloy, ensuring compatibility with a wide variety of media. The diaphragm can be formed by etching or machining the metal body, while the dielectric layers are created using thick-film processing to withstand the strains induced during operation.
Another significant patent is a method of manufacturing a pressure sensor assembly. This involves a carrier frame with cells that have inwardly extending thin flexible tabs. Pressure sensor housings are molded into the frame cells, allowing for easy removal after processing. A lead frame is insert molded simultaneously, and a reinforcing tie bar is attached to close the cells, enhancing the assembly's rigidity.
Career Highlights
Throughout his career, John M Hart, Jr. has worked with prominent companies such as Delco Electronics Corporation and General Motors Global Technology Operations, Inc. His experience in these organizations has contributed to his expertise in sensor technology and innovation.
Collaborations
John has collaborated with notable coworkers, including John Michael Matly and Dennis Michael Koglin. Their combined efforts have led to advancements in the field of pressure sensors and related technologies.
Conclusion
John M Hart, Jr. is a distinguished inventor whose work in pressure sensor technology has led to multiple patents and significant advancements in the field. His contributions continue to influence the industry and inspire future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile