This inventor holds 6 USPTO granted patents. Top assignees: Emhart Industries, Inc., Mallory Components Group Emhart Industries, Inc., P. R. Mallory Co.. Active years: 1979-1983.
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 595 
1 out of 1 
1 out of 169 Years Active: 1979-1983
Title: Walter R. Spofford: Innovator in Temperature Sensing and Microwave Technology
Introduction
Walter R. Spofford is a notable inventor based in Bedford, MA (US), recognized for his contributions to temperature sensing and microwave technology. He holds a total of 6 patents, showcasing his innovative spirit and technical expertise in these fields.
Latest Patents
Among his latest inventions is a temperature sensing circuit designed for semiconductor junction temperature probes. This temperature probe is biased to ensure that the current flowing through it is proportional to the probe temperature. A variable set point temperature is represented by a variable reference current, which is summed with the temperature probe current. An output signal is generated to indicate the relationship between the set point temperature and the probe temperature. Another significant patent is an oscillator circuit for controlling the power level of a microwave oven. This circuit features a variable duty cycle and includes an adjustable RC time constant circuit, which consists of a capacitance branch and a resistance branch. The resistance branch has alternately selectable current paths for charging and discharging the capacitance branch, allowing for precise control of the microwave oven's power level.
Career Highlights
Walter R. Spofford has worked with several prominent companies throughout his career, including Emhart Industries, Inc. and Mallory Components Group. His experience in these organizations has contributed to his development as an inventor and innovator in his field.
Collaborations
Throughout his career, Spofford has collaborated with notable individuals such as Daniel I. Pomerantz and Louis M. Sandler. These collaborations have likely enriched his work and contributed to his success as an inventor.
Conclusion
Walter R. Spofford's innovative contributions to temperature sensing and microwave technology have made a significant impact in his field. His patents reflect a deep understanding of engineering principles and a commitment to advancing technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile