This inventor holds 1 USPTO granted patent. Top assignee: Sizewise Rentals, L.l.c.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: James A. Rodrain: Airbed Pump Control Innovation
Introduction
James A. Rodrain is an inventor associated with Milwaukee, Wisconsin, and Sizewise Rentals, L.L.C. His patent work addresses control of diaphragm pumps used in airbed applications.
Latest Patents
Rodrain is credited with 1 patent: “Diaphragm Pump Control for Airbed Applications.” The invention describes an air pump unit combining an AC diaphragm pump with a DC motor driver circuit. The pump winding has AC power connections at both ends, while the driver supplies two DC square-wave signals to those connections. The signals operate at a frequency corresponding to a motor-frequency setting and are 180 degrees out of phase.
Career Highlights
Rodrain’s documented patent contribution focuses on adapting motor-drive control for an airbed pump. The patent describes a circuit arrangement intended to control the pump through coordinated, out-of-phase waveforms.
Collaborations
Rodrain’s listed coworkers include David Delroy Driscoll, Jr., and David Brian Scott. His association with Sizewise Rentals, L.L.C., provides the organizational context for his recorded invention.
Conclusion
James A. Rodrain’s patent documents a specialized approach to controlling diaphragm pumps for airbed applications, combining an AC pump with a DC motor driver circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile