Company Filing History:
3 out of 78 
2 out of 5,989 
1 out of 832,880 Years Active: 1980-1999
Title: The Innovative Contributions of Donald M. Berlin
Introduction
Donald M. Berlin is a notable inventor based in McHenry, Illinois, with a remarkable portfolio of six patents. His work primarily focuses on enhancing electrical systems and safety through innovative designs. Berlin's inventions reflect a commitment to improving functionality and reliability in everyday applications.
Latest Patents
Among his latest patents is a photo-control apparatus and circuit. This invention comprises a photo-control circuit that includes two or more photo-cells connected in parallel, which respond to ambient light. The circuit features a switch that connects a power source to a load. When the photo-cells are exposed to ambient light, current flows through the parallel photo-cells, operating the switch and disengaging the load from the source. The use of multiple parallel photo-cells enhances reliability and reduces manufacturing costs compared to conventional single photo-cell circuits. Another significant patent is the outdoor electrical outlet cover. This weatherproof protective cover is designed to attach securely to an electrical outlet, ensuring safety in outdoor environments. It includes a base plate, an insert for accommodating different outlet orientations, and a protective housing that encloses the outlet. The design also features a latching mechanism to keep the cover securely closed.
Career Highlights
Throughout his career, Donald M. Berlin has worked with prominent companies such as Intermatic Incorporated and Eaton Corporation. His experience in these organizations has contributed to his expertise in electrical systems and product development.
Collaborations
Berlin has collaborated with notable colleagues, including Julius R. Rosenski and Keith E. Zukausky. Their combined efforts have likely fostered innovation and creativity in their respective projects.
Conclusion
Donald M. Berlin's contributions to the field of electrical engineering through his patents demonstrate his innovative spirit and dedication to improving safety and functionality in electrical systems. His work continues to influence the industry and inspire future inventors.