Edward P Yeh

Title: The Innovative Contributions of Edward P Yeh

Introduction

Edward P Yeh is a notable inventor based in Harleysville, Pennsylvania. He holds five patents that showcase his ingenuity and contributions to the field of engineering. His work primarily focuses on enhancing the functionality and safety of press machinery.

Latest Patents

One of his latest inventions is a turret tool holder for a press. This tool-changing system utilizes a rotary turret that securely holds different tools. The turret features a circular table base that is rotatably mounted on the press anvil. As the turret rotates, it aligns a different tool with the upper tool on the press ram. The turret can be driven manually or motorized in either direction between indexed positions. The indexing system employs two simple sensors located beneath the turret table, which read different circular tracks on the underside of the turret.

Another significant patent is a light-controlled safety switch for a punch press. This innovative safety switch includes an optical transmitter and receiver mounted on the press frame above the ram. The system redirects a light beam from vertical to horizontal, creating an optical path that enhances safety. A light-blocking shutter is connected to a slidable punch holder assembly, which interrupts the light beam whenever the punch contacts an object. This optical system replaces traditional hard-wired safety switches, offering numerous advantages.

Career Highlights

Throughout his career, Edward P Yeh has worked with several companies, including Accu-sort Systems, Inc. and Penn Engineering & Manufacturing Corporation. His experience in these organizations has contributed to his development as an inventor and innovator in the field.

Collaborations

Edward has collaborated with notable coworkers such as Albert Wurz and Thomas J Brobst. Their combined expertise has likely fostered a creative environment that encourages innovation.

Conclusion

Edward P Yeh's contributions to the field of engineering through his patents demonstrate his commitment to innovation and safety in machinery. His work continues to influence the industry and inspire future inventors.