Location History:
- Citrus Heights, CA (US) (1977)
- Lake Stevens, WA (US) (1995 - 1998)
- Oceanside, CA (US) (2011)
Company Filing History:
3 out of 163 
2 out of 832,966 Years Active: 1977-2011
Title: The Innovative Contributions of William M McDonald
Introduction
William M McDonald is a notable inventor based in Lake Stevens, WA (US). He has made significant contributions to technology through his innovative patents. With a total of 5 patents, McDonald has focused on creating solutions that address real-world problems.
Latest Patents
One of his latest inventions is the "Persuasive Environmental Recovery System." This device serves as a sewer backup alarm and overflow prevention mechanism that effectively eliminates raw sewage spills. It prevents pressure buildup in sewer drains by utilizing one or more sewage level sensors connected to an alarm and an automatic water main shut-off valve. The level sensor detects excess fluid levels in a sewer lateral line, activating the shut-off valve and/or alarm when necessary. The device also features a joggle, which is a component of a non-mechanical backflow prevention system, and includes a two-way, in-line cleanout tube for ease of maintenance.
Another significant patent is the "Scanner with Direct Pixel Accessing from Multiple Pixel Memory Array." This apparatus is designed for scanning a field of view to gather two-dimensional data rapidly. It employs a video device that produces a two-dimensional matrix of pixel data, which is processed by a digital memory and a digital processor. The innovative design allows for the efficient retrieval of pixel data, significantly reducing the time required for processing.
Career Highlights
Throughout his career, McDonald has worked with various companies, including Intermec, Inc. His experience in these organizations has contributed to his development as an inventor and innovator.
Collaborations
McDonald has collaborated with notable individuals such as George R Huggett and Andrew E Reynolds. These partnerships have likely influenced his work and led to the successful development of his patents.
Conclusion
William M McDonald is a distinguished inventor whose work has made a lasting impact in the field of technology. His innovative patents address critical issues and demonstrate his commitment to improving environmental safety and data processing efficiency.