Company Filing History:
Years Active: 1991
Title: Douglas H. Rigerman: Innovator in Manway Lift Assist Technology
Introduction
Douglas H. Rigerman is a notable inventor based in Leroy, NY (US). He has made significant contributions to the field of engineering, particularly with his innovative approach to manhole cover technology. His work focuses on improving safety and efficiency in handling manhole covers.
Latest Patents
Rigerman holds a patent for his invention titled "Manway Lift Assist." This invention relates to an improved balancing aid for a pivotally mounted cover for a manhole. The design includes means for hinging the cover relative to the manhole, allowing it to be rotated about the hinge to expose and cover the manhole. Additionally, it features a spring retaining means comprising a rod pivotally secured to the cover, which is partially encased by a housing containing a compression spring. This spring is compressed when the cover is closed, enhancing the functionality and safety of the manhole cover.
Career Highlights
Douglas H. Rigerman is associated with The Pfaudler Companies, Inc., where he has contributed his expertise in engineering and innovation. His work has been instrumental in developing solutions that address practical challenges in the industry.
Collaborations
Throughout his career, Rigerman has collaborated with talented individuals such as Franklyn J. Amorese and Robert R. Loomis. These collaborations have fostered a creative environment that encourages the development of innovative solutions.
Conclusion
Douglas H. Rigerman's contributions to manhole cover technology exemplify the spirit of innovation. His patent for the Manway Lift Assist showcases his commitment to improving safety and efficiency in engineering applications. His work continues to inspire advancements in the field.