George MacDonald is an accomplished inventor based in Garrettsville, Ohio. He holds three patents that showcase his expertise in marine technology. His innovative designs focus on enhancing the functionality and reliability of sealing devices used in water vessels.

Latest Patents

One of his latest patents is the "Marine shaft seal with lip seal, bearing and gasket." This sealing device is designed for use with a drive shaft of a water vessel. It comprises a housing for a seal and bearing, a compression ring, a lip seal flange attachment, and a diaphragm that tracks the movement of the shaft. The diaphragm is made of a resilient, flexible material and is operatively connected to the seal housing. In operation, the diaphragm tracks the motion of the drive shaft, allowing it to move freely within the hull of the vessel. This design ensures a constant seal around the shaft, accommodating any axial, lateral, or circular-axial movement.

Another significant patent is the "Adjustable seal for propeller drive shaft." This device provides a sealing solution between a rotatable drive shaft, such as a propeller drive shaft, and the aperture in a structure, like the hull or bulkhead of a vessel. The device is generally rigid and consists of an adapter ring, a slide ring, a diaphragm positioned between the adapter ring and the slide ring, and a friction ring. The friction ring has one end positioned in the adapter ring and a seal surface that engages with the seal surface of a seal ring that rotates with the shaft. Biasing means are positioned between the slide ring and the friction ring to urge the seal surfaces together, while a spring cover acts as a redundant seal to the diaphragm.

Career Highlights

Throughout his career, George MacDonald has made significant contributions to marine technology. His innovative sealing devices have improved the performance and durability of water vessels. His work reflects a deep understanding of the challenges faced in marine engineering.

Collaborations

George has collaborated with notable companies such as Duramax Marine, LLC and Duramax, Inc. These partnerships have allowed him to further develop and refine his inventions, contributing to advancements in the marine industry.

Conclusion

George MacDonald is a notable inventor whose work in marine sealing technology has made a significant impact. His patents demonstrate his commitment to innovation and improving the functionality of water vessels. His contributions continue to influence the marine engineering

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