Company Filing History:
Years Active: 2005-2018
Title: Innovations by David E Ewel
Introduction
David E Ewel is an accomplished inventor based in Mankato, MN (US). He has made significant contributions to the field of hydraulic braking systems and trailer safety mechanisms. With a total of 2 patents, Ewel's work reflects his commitment to enhancing vehicle safety and performance.
Latest Patents
One of Ewel's notable inventions is the trailer break-away switch. This device comprises an electromechanical means to energize a towed trailer brake in the event of unintended decoupling from the towing vehicle. Under normal operation, the trailer break-away switch functions as a normally open switch between the trailer's stored energy source and the brake system. In case of decoupling, a pin is pulled from the switch, activating it and allowing electrical power to connect to the trailer brake system. In some instances, the switch directly connects the trailer battery to the electromagnetic coils of the electric brakes.
Another significant patent is the electronically controlled full power brake valve. This hydraulic braking system supplies a braking output for vehicles with at least one brake. It includes a primary valve assembly that receives a manually controlled input to vary the braking output. The primary valve assembly features a first spool valve that adjusts the braking output based on the input. Additionally, a secondary valve assembly, integral with the primary assembly, receives input signals from a programmable electronic controller. This assembly includes a second spool valve that modulates the braking output produced by the primary assembly.
Career Highlights
Throughout his career, David E Ewel has worked with reputable companies such as Mico, Inc. and Dewel, LLC. His experience in these organizations has contributed to his expertise in developing innovative braking systems and safety devices.
Collaborations
[This section has been skipped due to space constraints.]
Conclusion
David E Ewel's contributions to vehicle safety through his innovative patents demonstrate his dedication to improving automotive technology. His work continues to influence the industry and enhance the safety of towing and braking systems.