Harold H Seward

Title: Harold H. Seward: Inventor in Thermal Storage and Guidance Computing

Introduction

Harold H. Seward was an inventor associated with Arlington, Massachusetts. His work spans thermal energy storage and missile guidance computing, reflecting contributions to distinct areas of engineering. He is credited with 2 patents.

Latest Patents

Seward’s patents describe two different technical systems:

- **Thermal energy storage and exchanger device.** This invention uses horizontal, superimposed plates to form evenly spaced flow passages. A fluid can be driven through the passages to transfer heat to or from the plates. When the fluid is stationary, the plate arrangement is designed to reduce convection and heat exchange, supporting a storage mode.

- **Guidance computer.** This digital computer was designed to guide a ballistic missile during powered flight. It uses interconnected integrators, along with accelerometer outputs and other computational elements, to compare the missile’s measured velocity with its velocity-to-be-gained and produce trajectory-control signals.

Career Highlights

The patent records associate Seward’s work with the United States as represented by the Secretary of the Navy. His patents address both the management of thermal energy and the computational control of missile flight.

Collaborations

Seward’s listed coworkers include Eldon C. Hall and Joseph D. Sabo, reflecting connections with other contributors in the patent and engineering record.

Conclusion

Harold H. Seward’s two patents document inventive work in thermal energy storage and ballistic-missile guidance, linking practical heat-management design with digital control systems.