Donald H Pfefferle

Title: The Innovative Contributions of Donald H. Pfefferle

Introduction

Donald H. Pfefferle is a notable inventor based in Williamsport, PA (US). He has made significant contributions to the field of photoflash technology, holding a total of 2 patents. His work has advanced the functionality and design of photoflash units, showcasing his innovative spirit and technical expertise.

Latest Patents

Pfefferle's latest patents include a photoflash unit featuring flashlamps that utilize looped lead-in wires. This design incorporates a printed circuit board and multiple electrically-activated flashlamps. Each lamp is equipped with lead-in wires that have looped portions, allowing for frictional insertion into openings on the board, thereby securing the lamp in place. This innovative approach also facilitates contact with the board's lamp-firing circuitry.

Another significant patent is for a compact photoflash unit that comprises several flashlamps connected to a circuit board with radiation-sensitive switching circuitry. This design allows for the sequential flashing of the lamps. The unit features electrically conductive reflector panels positioned between the lamps and the circuit board, with an insulating sheet interposed to prevent shorting of the circuitry. The insulating sheet is designed with T-shaped tabs that interlock with slots in the circuit board, ensuring proper alignment during assembly.

Career Highlights

Throughout his career, Donald H. Pfefferle has worked with prominent companies such as GTE Sylvania Incorporated and GTE Products Corporation. His experience in these organizations has contributed to his development as an inventor and has provided him with valuable insights into the industry.

Collaborations

Pfefferle has collaborated with notable coworkers, including Emery G. Audesse and Ronald E. Sindlinger. These partnerships have likely enriched his work and fostered a collaborative environment for innovation.

Conclusion

Donald H. Pfefferle's contributions to photoflash technology through his patents and career experiences highlight his role as an influential inventor. His innovative designs continue to impact the field, showcasing the importance of creativity and technical skill in advancing technology.