Location History:
- St. Louis, MO (US) (1991)
- Clayton, MO (US) (1995 - 1997)
Company Filing History:
Years Active: 1991-1997
Title: Innovations of Douglas M Petty
Introduction
Douglas M Petty is an accomplished inventor based in Clayton, MO (US). He has made significant contributions to the field of technology, particularly in the areas of vending machines and dynamoelectric machines. With a total of 3 patents to his name, Petty's work showcases his innovative spirit and technical expertise.
Latest Patents
One of Petty's latest patents is a "Coin payout method and control means." This invention involves a device and method for controlling change payout from multiple coin tubes in a vending machine. Each coin tube stores a specific coin type, and the device includes a processor that manages data and controls vend operations. The processor is programmed to determine the amount of change to be returned and whether a specific coin type should be saved. It generates a payout array that adjusts the number of coins accordingly.
Another notable patent is the "Method and apparatus of operating a dynamoelectric machine using DC bus." This invention pertains to a brushless permanent magnet motor that features multiple stator windings and a rotor. The apparatus controls winding commutation relative to the rotor, optimizing motor performance and efficiency. The controller processes information from the sampled DC bus current waveshape to adjust the commutation frequency as needed.
Career Highlights
Throughout his career, Douglas M Petty has worked with reputable companies such as Emerson Electric Company and Coin Acceptors, Inc. His experience in these organizations has contributed to his development as an inventor and has allowed him to apply his innovative ideas in practical settings.
Collaborations
Petty has collaborated with notable individuals in his field, including Pradeep K Sood and James L Skinner. These collaborations have likely enriched his work and expanded his innovative capabilities.
Conclusion
Douglas M Petty is a distinguished inventor whose contributions to technology are evident through his patents and career achievements. His innovative solutions in vending machine technology and dynamoelectric machines reflect his commitment to advancing the field.