Location History:
- Milipitas, CA (US) (1995)
- Fremont, CA (US) (2001)
Company Filing History:
Years Active: 1995-2001
Title: Innovations of Marc R Bunyard
Introduction
Marc R Bunyard is an accomplished inventor based in Milpitas, CA (US). He has made significant contributions to the field of engineering, particularly in the development of methods and apparatuses that enhance the functionality of motors and pump assemblies. With a total of 3 patents to his name, Bunyard's work reflects a commitment to innovation and efficiency.
Latest Patents
One of his latest patents is the "Pseudo half-step motor drive method and apparatus." This invention provides a method for driving a stepper motor in such a way that the motor's velocity is substantially zero upon reaching a new stepped position. This eliminates overshoot and ringing, as well as the wasted energy associated with these effects. The method involves energizing at least one of the stepper motor windings at a predetermined current level for a specific step time, ensuring that the motor velocity is effectively controlled.
Another notable patent is the "Method and apparatus to test for valve leakage in a pump assembly." This invention allows for the detection of leakage in valves within a pump assembly. By utilizing a pressure sensor and a series of controlled steps, Bunyard's method can determine whether the inlet or outlet valves are leaking, thereby ensuring the integrity of the pump system.
Career Highlights
Marc R Bunyard is currently employed at Abbott Laboratories Corporation, where he continues to apply his expertise in engineering and innovation. His work at Abbott Laboratories has allowed him to collaborate with other talented professionals in the field, further enhancing the impact of his inventions.
Collaborations
Some of his notable coworkers include Walter L Jimison and Craig S Barker. Their collaborative efforts contribute to the innovative environment at Abbott Laboratories, fostering advancements in technology and engineering.
Conclusion
Marc R Bunyard's contributions to the field of engineering through his patents and work at Abbott Laboratories highlight his dedication to innovation. His inventions not only improve existing technologies but also pave the way for future advancements in motor and pump assembly efficiency.