Company Filing History:
Years Active: 1978-1985
Title: The Innovative Contributions of Frederic W Pollman
Introduction
Frederic W Pollman is a notable inventor based in Ames, Iowa, recognized for his significant contributions to technology with a total of 15 patents to his name. His work primarily focuses on improving control systems for machinery, particularly in applications that require precise cable management and motor control.
Latest Patents
Among his latest inventions is the "Constant Tension Cable Reel Drive." This innovative system enhances the control of a driven cable reel mounted on vehicles, such as mine cars. The invention ensures that the reel maintains a relatively constant tension on the cable, which is crucial for preventing cable breakage. The control system adjusts the torque supplied by the reel drive, providing higher torque when paying in cable and lower torque when paying out. This adjustment compensates for the changing frictional characteristics during these operations. Additionally, the system includes a transient condition output signal that modulates the drive of the cable reel, reducing slack and preventing sudden increases in cable tension.
Another significant patent is the "Hydraulic Motor Control," which offers a solution for variable displacement motors. This control operates in both directions of rotation and adjusts the position of a wash plate based on the rate of fluid flow through the motor. By sensing pressure drops in a closed circuit line, the control sets a variable signal that decreases motor displacement in relation to increased fluid flow, enhancing the efficiency of the motor's operation.
Career Highlights
Frederic W Pollman has made substantial contributions to the field of engineering through his work at Sundstrand Corporation. His innovative designs and patents have played a crucial role in advancing technology in various applications, particularly in the mining and industrial sectors.
Collaborations
Throughout his career, Pollman has collaborated with notable colleagues, including David W Reynolds and Jimmy W Bolinger. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Frederic W Pollman's inventive spirit and dedication to improving control systems have made a lasting impact on the engineering field. His patents reflect a commitment to innovation that continues to influence technology today.