Liberato Pietrantoni

Title: Liberato Pietrantoni: Innovator in Automatic Screw Machine Technology

Introduction

Liberato Pietrantoni is a notable inventor based in Rochester, NY (US). He has made significant contributions to the field of automatic screw machine technology, holding a total of 4 patents. His work focuses on improving the efficiency and functionality of screw machines, particularly through innovative mechanisms.

Latest Patents

One of Pietrantoni's latest patents is a quick-change mechanism designed for use with the stationary spindle of a Davenport® automatic screw machine. This invention provides an improvement by incorporating a quick-change mechanism associated with the stationary spindle. The mechanism features mating frusto-conical surfaces on both the spindle and tool holder, along with a multi-lead threaded connection. This design allows for the tool holder to be quickly locked into engagement with the spindle through minimal relative rotation. Additionally, the invention includes an adjustment mechanism that aligns the tool's axis with that of a spaced rotatable spindle, enhancing precision in machining operations.

Another significant patent is for an improved tool holder, such as a shave tool. This tool holder includes an adapter plate that can be mounted on the screw machine for controlled movement toward and away from the workpiece. It features a tool block that is slidably mounted for relative movement along a first axis, and a slide body that allows for rotation about a second axis. An adjustment mechanism is also included to vary the angular position of the slide body, ensuring versatility in tool positioning.

Career Highlights

Throughout his career, Liberato Pietrantoni has worked with several companies, including C.J. Winter Machine Technologies, Inc. and C.J. Winter Machine Works, Inc. His experience in these organizations has contributed to his expertise in the field of automatic screw machines and tool holder innovations.

Collaborations

Pietrantoni has collaborated with notable coworkers such as Paul W. Allart and David G. Cole. These partnerships have likely fostered a creative environment that has led to the development of innovative solutions in machining technology.

Conclusion

Liberato Pietrantoni's contributions to automatic screw machine technology through his patents and career experiences highlight his role as an influential inventor. His innovative designs continue to impact the efficiency and functionality of machining processes.