David F Salzmann

Title: David F. Salzmann and His Automotive Inventions.

Introduction

David F. Salzmann is an inventor associated with South Lyon, Michigan. His work includes inventions for automotive systems, particularly hydraulic switching and electronic control of automatic transmissions. Salzmann is credited with 3 patents.

Latest Patents

One of Salzmann’s patents, “Hydraulic Master Cylinder Switch,” describes a switch mounted on a master-cylinder push rod. Its plunger assembly moves in stages to activate multiple switches, such as those used for cruise control, electronic fuel injection, and start interlocks. The relative movement between the push rod and plungers allows the switch housing to be shorter, making it suitable for assemblies with limited space.

Another patent, “Electrical Control Apparatus for Control of an Automatic Transmission,” concerns an electronic system for changing a motor vehicle’s automatic transmission state. An operator input device provides the desired state, while an encoder detects the transmission’s current state. A logic control unit then enables a motor controller to operate the transmission-shifting motor. Locating the motor controller remotely from the logic control unit can reduce high-current wiring, improve dynamic braking, and make the system easier to service.

Career Highlights

Salzmann’s listed company affiliations include Automotive Products, Inc., and Automotive Products (USA), Inc. His patent work reflects a focus on practical automotive engineering, including compact switch design and electronic transmission control.

Collaborations

Salzmann’s listed coworkers include Edward L. Tury and Keith V. Leigh-Monstevens. Their names appear among the professional connections associated with his inventive work.

Conclusion

David F. Salzmann’s patents address automotive control challenges through staged hydraulic switching and electronic transmission management, illustrating his contributions to vehicle systems engineering.