Company Filing History:
4 out of 1,393 
1 out of 1,173 
1 out of 29,302 
Years Active: 1985-2011
Title: The Innovations of Robert Spaargaren
Introduction
Robert Spaargaren is a notable inventor based in Granger, Indiana. He has made significant contributions to the field of automotive technology, holding a total of 6 patents. His work primarily focuses on enhancing braking systems, showcasing his expertise and innovative spirit.
Latest Patents
One of Spaargaren's latest patents is for a brake booster with dual rate assist. This invention features a boosted brake that includes a decompression arrangement. The output push rod has a head with multiple openings that extend into a stem, creating several arcuate grooves. These openings accommodate projections extending from a piston retained in a sleeve held in a movable partition. A spring acts on these projections, urging the piston into engagement with a reaction disc, which supplies an actuation force to the master cylinder. The design allows for a predetermined reaction force from the master cylinder to act on the piston, overcoming the spring to modify the reaction force. The arcuate grooves in the stem facilitate a maximum diameter for the spring while maintaining a minimum diameter for the stem, corresponding to the piston diameter, thus creating a desired braking response during emergency applications.
Another significant patent is the backing plate assembly for a drum brake. This assembly includes a first part designed for attachment to a vehicle frame and a second part that is releasably coupled to the first. The second part is made from a material that significantly reduces noise in the assembly and is tightly frictionally coupled to the first part. Notably, the second part does not experience braking torque and is connected to a reinforced section of the first part.
Career Highlights
Throughout his career, Robert Spaargaren has worked with prominent companies such as Allied Corporation and The Bendix Corporation. His experience in these organizations has contributed to his development as an inventor and innovator in the automotive sector.
Collaborations
Spaargaren has collaborated with notable individuals in his field, including John L. Turak and Charles Horner. These partnerships have likely enriched his work and expanded his innovative capabilities.
Conclusion
Robert Spaargaren's contributions to automotive technology through his patents demonstrate his commitment to innovation and improvement in braking systems. His work continues to influence the industry and showcases the importance of inventive thinking in engineering.