Company Filing History:
Years Active: 1984-1989
Title: Innovations by Stanley D. Rosen
Introduction
Stanley D. Rosen is a notable inventor based in Southfield, MI (US), recognized for his contributions to automotive technology. He holds a total of 4 patents, showcasing his expertise in developing advanced systems for automatic transmissions.
Latest Patents
One of his latest patents is for a torque converter lockup clutch control for an automatic transmission. This invention involves a torque converter lockup clutch that is pressurized from a source of regulated line pressure through a lockup clutch control valve. The valve directs pressure to either of two passages to apply and release the clutch. It is supplied with control pressure from a solenoid-operated valve that produces high and low fluid pressure states corresponding to commands to engage and release the lockup clutch. Additionally, a second control pressure is applied to the control valve when the vehicle operator manually selects certain gear ratios, particularly the lowest forward and reverse gear ratios.
Another significant patent by Rosen is the coast clutch control for multiple speed automatic transmissions. This invention features a manual valve that alternately connects a source of regulated line pressure to a forward drive passage and to a reverse drive passage. A shift valve connects these passages to an input port of a coast clutch valve based on the state of a solenoid-operated valve. The control port of the coast clutch shift valve is pressurized either from a manual valve or from a source of variable pressure control by operation of a variable force solenoid.
Career Highlights
Stanley D. Rosen has made significant strides in the automotive industry, particularly through his work at Ford Motor Company Limited. His innovative designs have contributed to the efficiency and performance of automatic transmission systems.
Collaborations
Throughout his career, Rosen has collaborated with notable colleagues, including William D. Ross and Scott Raymond Crandall. These partnerships have fostered a creative environment that has led to the development of groundbreaking automotive technologies.
Conclusion
Stanley D. Rosen's contributions to automotive innovation, particularly in automatic transmission systems, highlight his expertise and dedication to advancing technology in the industry. His patents reflect a commitment to improving vehicle performance and efficiency.