Location History:
- New York, NY (US) (1982)
- Rice, MN (US) (1985)
- St. Cloud, MN (US) (1993 - 2003)
- Sartell, MN (US) (2003 - 2019)
Company Filing History:
Years Active: 1982-2019
Title: Innovations of Douglas J Tanner
Introduction
Douglas J Tanner is a notable inventor based in St. Cloud, MN (US), recognized for his contributions to various technological advancements. He holds a total of 11 patents, showcasing his innovative spirit and expertise in engineering.
Latest Patents
Among his latest inventions is a check valve control unit. This invention includes a valve body that defines an inlet port and an outlet port, with a disc disposed within the valve body. The disc is coupled to a pivot shaft, which is in turn connected to the valve body. A lever arm is attached to the disc, allowing it to rotate and interact with an actuator shaft connected to a motor. This design enables precise control over the valve's maximum open position. Another significant patent is the pneumatic volume booster for valve positioners. This system utilizes electrical control signals to manage a pneumatically operated valve. It features a pilot circuit with multiple piezo valves that generate pneumatic output signals, effectively controlling higher volume valve assemblies. The design ensures that even small pneumatic signals can shift larger pistons, allowing for efficient operation of the valve.
Career Highlights
Throughout his career, Tanner has worked with prominent companies such as Spx Corporation and General Signal Corporation. His experience in these organizations has contributed to his development as an inventor and innovator in the field.
Collaborations
Tanner has collaborated with notable individuals in his field, including Lawrence R Lafler and George Spector. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Douglas J Tanner's innovative contributions, particularly in valve control technologies, highlight his significant role as an inventor. His patents reflect a commitment to enhancing engineering solutions and improving operational efficiencies.