Jimmy D Andrews

Title: Jimmy D Andrews and His Dual Backseat Valve Assembly

Introduction

Jimmy D Andrews is an inventor associated with FMC Corporation. His patent work includes a valve design intended to improve how a valve stem is sealed and secured in different operating positions. The available information identifies 1 patent associated with him.

Latest Patents

Andrews’s listed invention is the “Dual backseat valve assembly.” The design includes a valve body, a vertically moving gate, a threaded stem, and a bonnet that receives the stem. It uses two backseat seals to provide sealing in different conditions: one engages when the valve is open and the stem is backseated, while the other seals between the stem and bonnet when the valve is closed and backseated.

The assembly also includes a fixed structure that engages a downward-facing surface on the stem when the valve is open. This engagement is designed to tighten and lock the stem in its backseated position. Together, these features address stem sealing and retention across the valve’s operating positions.

Career Highlights

The available details connect Andrews’s invention to FMC Corporation and identify Singapore as his location. The patent description reflects work on valve components and mechanisms, particularly the interaction between the stem, bonnet, seals, and locking structure.

Collaborations

Michael R Williams and Jeffrey L Mathews are identified as Andrews’s coworkers. The information provided does not specify their roles in developing or patenting the valve assembly.

Conclusion

Jimmy D Andrews’s listed patent, the “Dual backseat valve assembly,” describes a valve design that combines position-specific sealing with a mechanism for securing the stem when backseated.