David C Dunnigan

Title: The Innovative Mind of David C. Dunnigan

Introduction

David C. Dunnigan, an inventive engineer located in Buffalo, Minnesota, has made significant contributions to the world of vending machine technology. With a total of two patents to his name, Dunnigan's innovative designs focus on improving the functionality and efficiency of refrigerated vending machines.

Latest Patents

One of Dunnigan's most notable inventions is the "Damper Apparatus for Refrigerated Vending Machines with a Defrost Cycle." This apparatus introduces an improved method for defrosting refrigeration units in vending machines. The design features a damper that controls the flow of heated defrosting air, preventing it from escaping into the refrigerated compartment. This ensures that the desired ambient air temperature within the compartment is maintained during the defrosting cycle.

Another significant invention is the "Self-Sealing Vending Machine Refrigeration Apparatus." This innovative apparatus outlines a method for installing a slide-in refrigeration unit that automatically aligns and seals its air flow ducts to the refrigerated compartment. With a simple assembly that guides the movement of the refrigeration unit, it automatically engages the mating surfaces of a duct connector to establish efficient air flow communication. The installation process is further simplified by securing the unit with screws or bolts, enhancing both ease of use and efficiency for manufacturers.

Career Highlights

David C. Dunnigan works at Gross-Given Manufacturing Company, where he applies his skills in engineering and innovation to develop cutting-edge vending machine technologies. His contributions have not only advanced operational efficiency but have also set new standards in product design within the industry.

Collaborations

Throughout his career, Dunnigan has collaborated with notable colleagues including Bart W. Baxter and Joseph A. Lotspeich. Their collective expertise and innovative spirit foster a collaborative environment that promotes advancements in vending machine design and functionality.

Conclusion

David C. Dunnigan stands out as a remarkable inventor in the field of vending machine technology. With his innovative patents addressing the challenges of refrigeration and installation, he continues to pave the way for advancements in convenience and functionality in the vending industry. His work at Gross-Given Manufacturing Company and collaborations with fellow inventors amplify his impact on modern solutions in this domain.