James R McNair

Title: The Innovative Contributions of James R. McNair

Introduction

James R. McNair is a notable inventor based in Bay Springs, MS (US). He has made significant contributions to the field of heating technology. His innovative approach has led to the development of a unique heating pad that enhances user safety and comfort.

Latest Patents

One of McNair's most recognized patents is the "Flexible self-regulating heating pad combination and associated method." This invention features a flexible electric heating pad equipped with a self-limiting heating element. The heating element consists of a pair of relatively spaced conductors surrounded by positive temperature coefficient (PTC) material. The design includes a layer of electrically insulating material that encases the PTC material, which is made from a polyolefin resin with a low flexural modulus. The heating element is arranged in a serpentine configuration within passages formed in the heating pad's covering material. These passages are created by joining layers of covering material through ultrasonic welding or other suitable methods. The temperature control is managed by a controller circuit that utilizes a solid-state timed interval control circuit. Additionally, a safety circuit is integrated to disconnect electrical power from the heating element in case of short or open circuit conditions. The invention also includes a temperature indicator and a variable automatic shutoff circuit.

Career Highlights

James R. McNair is associated with Sunbeam Corporation Limited, where he has contributed to the advancement of heating technologies. His work has focused on creating safer and more efficient heating solutions for consumers.

Collaborations

Throughout his career, McNair has collaborated with notable colleagues, including William M. Sullivan and William W. Irwin, Jr. These partnerships have fostered innovation and have led to the successful development of new technologies.

Conclusion

James R. McNair's contributions to the field of heating technology exemplify the spirit of innovation. His patented heating pad design not only enhances user safety but also showcases the importance of thoughtful engineering in everyday products.