This inventor holds 2 USPTO granted patents. Top assignees: Sun West Solar Systems, Inc., Other. Active years: 1984-1985.
Company Filing History:
1 out of 1 
1 out of 834,453 Years Active: 1984-1985
Title: The Innovations of Robert A Holliday
Introduction
Robert A Holliday is an accomplished inventor based in Phoenix, AZ. He holds a total of 2 patents that showcase his innovative contributions to technology. His work primarily focuses on enhancing the functionality of vending machines and improving air conditioning systems.
Latest Patents
One of Holliday's notable inventions is a coin handling apparatus designed for use in merchandise vending machines. This apparatus features a specially configured escrow box capable of handling large quantities of coins without the jamming and incomplete emptying issues seen in prior designs. The escrow box includes a coin return gate and a vend gate that form a V-shaped structure when closed. This design allows for efficient operation, as the gates pivot to fully open one side of the escrow box, facilitating smooth coin transactions.
Another significant patent is a duty cycle controller for air conditioning systems. This controller utilizes solid-state switches connected in series with the heating and cooling switches of a thermostat. The switch control circuit enables the solid-state switches to be conductive or nonconductive based on timing signals from a counter. This innovation ensures that each heating and cooling duty cycle begins with a full energization period, enhancing the efficiency of air conditioning systems.
Career Highlights
Throughout his career, Holliday has worked with various companies, including Sun West Solar Systems, Inc. His experience in the industry has allowed him to develop practical solutions that address common challenges in vending and climate control technologies.
Collaborations
Holliday has collaborated with notable individuals, including his coworker Warren L Williamson. Their joint efforts have contributed to the advancement of technology in their respective fields.
Conclusion
Robert A Holliday's innovative patents reflect his commitment to improving everyday technologies. His contributions to vending machine functionality and air conditioning efficiency demonstrate the impact of his work in the field of inventions.