Alan Johnson

Title: Alan Johnson: Innovator in Gas Detection and Thermoplastic Bonding

Introduction

Alan Johnson is a notable inventor based in Sunderland, GB. He has made significant contributions to the fields of gas detection and thermoplastic bonding, holding a total of 2 patents. His innovative approaches have led to advancements that enhance safety and efficiency in various applications.

Latest Patents

One of Alan's latest patents is a method for detecting combustible gases. This method allows for the detection of the proportion of combustible gas in a mixture of air using a measuring device that operates by both heat-tone and heat-conductivity methods. The design permits measurement across the full concentration range with high accuracy and minimal energy consumption. The measuring device is compact and lightweight, featuring a sensor with a long service life. The method employs a single sensor that operates at low temperatures in heat-conductivity mode or catalytically at higher temperatures in heat-tone mode. If the measurement yields a result below a reference value, it continues in the more accurate heat-tone mode. To prevent ambiguity in the measuring signal and protect the sensor from damage, the measurement reverts to heat-conductivity mode when gas concentration increases.

Another significant patent is for coupling devices used with electrofusion fittings of thermoplastic. This coupling device identifies the fitting and indicates the duration for which the fittings should be electrically energized to ensure a satisfactory bond to thermoplastic pipes. The device consists of relatively rotatable parts that align with fixed identification locations on the fitting, automatically selecting an electrical parameter representative of that fitting and the required energization period.

Career Highlights

Throughout his career, Alan has worked with prominent companies such as Dragerwerk Aktiengesellschaft and British Gas Plc. His experience in these organizations has contributed to his expertise in developing innovative solutions in his field.

Collaborations

Alan has collaborated with notable individuals, including Hansjochen Schuck and Peter J Iredale. These partnerships have fostered a creative environment that has led to the development of his patents.

Conclusion

Alan Johnson's contributions to gas detection and thermoplastic bonding demonstrate his commitment to innovation and safety. His patents reflect a deep understanding of technology and its applications in real-world scenarios. His work continues to influence the industry positively.