Company Filing History:
2 out of 31,024 
1 out of 5,161 
1 out of 846 Years Active: 1996-2022
Title: David Fredrick Hammerbacher: Innovator in Electric Power Steering and Pump Technologies
Introduction
David Fredrick Hammerbacher, a prominent inventor based in Saginaw, MI, has made significant contributions to the field of automotive technologies with a total of four patents to his name. His innovative work focuses primarily on electric power steering systems and hydraulic pumps, which are essential in modern vehicle design.
Latest Patents
Among Hammerbacher's latest patents is the "Rattle Noise Reducing Electric Power Steering Column Assembly and Method." This assembly features a lower assist shaft with a defined first bore and includes a needle bearing positioned within the bore. It also incorporates an upper assist shaft assembly with its own defined second bore and a journal surface. A critical component of this assembly is the torsion bar, which ensures continued contact between the journal surface and the needle bearing, effectively reducing noise.
Another noteworthy patent from Hammerbacher is the "Sliding Vane Pump." This invention consists of a rotor housing that incorporates a pumping chamber along with a rotor that has radially disposed slots. The sliding vanes within these slots are designed to maintain contact with the walls of the pumping chamber, enhancing the efficiency and performance of the pump.
Career Highlights
David has had a robust career working with respected companies in the automotive sector, including GM Global Technology Operations LLC and Delphi Technologies, Inc. His experience spans various projects aimed at advancing automotive technology and improving vehicle performance.
Collaborations
Throughout his career, Hammerbacher has collaborated with several notable colleagues, including Roy William Heath and Jesse Kalkman. These professional relationships have fostered innovation and development in the projects they have undertaken together, contributing to the success of the technology they have worked on.
Conclusion
David Fredrick Hammerbacher exemplifies the spirit of innovation found in the automotive industry. With a track record of impactful patents and valuable collaborations, Hammerbacher remains a key player in the development of advanced technologies that enhance vehicle performance and reliability. His work continues to inspire future innovations in the field.