Location History:
- Jension, MI (US) (1998)
- Jenison, MI (US) (1987 - 2008)
Company Filing History:
5 out of 15 
4 out of 21 
3 out of 3 Years Active: 1987-2008
Title: Innovations of Donald R Rigsby in Exhaust Treatment Technology
Introduction
Donald R Rigsby is a notable inventor based in Jenison, MI (US), recognized for his contributions to the field of exhaust treatment technology. With a total of 14 patents to his name, Rigsby has made significant advancements in the design and functionality of catalytic converters and other related devices.
Latest Patents
One of Rigsby's latest patents focuses on vacuum-insulated exhaust treatment devices, specifically catalytic converters with passive controls. This innovative thermally-activated exhaust treatment device features a core that includes an inner housing and a catalytic material. The design incorporates a jacket with an outer housing that encloses the inner housing without direct contact. The inner and outer housings form a vacuum-drawn sealed insulation cavity around the inner housing. Additionally, a temperature-activated variable insulator device is positioned within the outer housing, which includes a hydrogen source and controls for managing the variable insulator device. A vacuum-maintenance device is also integrated into the insulation cavity, consisting of a small container, getter material, and a porous member that allows gas communication with the getter material. Furthermore, a multi-layered radiation shield is loosely coupled to the inner housing, and a vacuum detector provides a visible indicator of the vacuum within the insulation cavity.
Career Highlights
Throughout his career, Rigsby has worked with prominent companies such as Benteler Industries, Inc
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.