Location History:
- Rochesterm, NY (US) (1988)
- Rochester, NY (US) (1989)
Company Filing History:
1 out of 62 
2 out of 832,880 Years Active: 1988-1989
Title: The Innovative Mind of Stephen Helesfai
Introduction
Stephen Helesfai is a notable inventor based in Rochester, NY (US). He has made significant contributions to the field of invention, holding a total of 3 patents. His work primarily focuses on combination locks and radiological detection technologies.
Latest Patents
One of his latest patents is the "Tumbler wheel structure for radiological detector resistant combination." This invention features a combination lock designed for changing the combination using a change key. It includes a lock case housing and a stack of tumbler wheels that are loosely journaled on a tumbler post. Each tumbler wheel consists of an annular outer rim portion and an inner annular hub portion, which are releasably intercoupled at various angular positions. The specially shaped peripheral gates of the rim portions allow for proper alignment with a fence lever. The tumbler post supports axial movement, enabling the hub portions to shift between coupled and decoupled relations. An actuator, activated by the change key, facilitates this movement for combination changes.
Another significant patent is the "Radiological detection resistant combination lock." This invention shares similar features with the tumbler wheel structure, emphasizing the importance of security and functionality in combination locks. The design ensures that the tumbler wheels can be aligned correctly, allowing for secure locking mechanisms that are resistant to radiological detection.
Career Highlights
Throughout his career, Stephen Helesfai has worked with various companies, including Sargent & Greenleaf, Inc. His experience in the industry has allowed him to refine his inventions and contribute to advancements in security technology.
Collaborations
Stephen has collaborated with notable individuals such as Harry C. Miller and John R. Bishop. Their combined expertise has likely influenced the development of his innovative designs.
Conclusion
Stephen Helesfai is a distinguished inventor whose work in combination locks and radiological detection technologies has made a significant impact. His patents reflect a commitment to innovation and security, showcasing his expertise in the field.