This inventor holds 6 USPTO granted patents, plus 1 CIPO patent. Top assignees: Ruanduff Electrical Limited, University of Guelph, Other. Active years: 1984-2001.
Company Filing History:
1 out of 1 
1 out of 115 
4 out of 834,453 Years Active: 1984-2001
Title: The Innovative Contributions of James D. Cross
Introduction: James D. Cross, an accomplished inventor based in Waterloo, Ontario, Canada, holds a remarkable portfolio of four patents. His work, characterized by ingenuity and technical proficiency, has significantly contributed to advancements in the field of electrical and mechanical engineering.
Latest Patents: Among his latest inventions, James D. Cross developed an "Electrode System for Perforating Synthetic Plastic Films." This innovative apparatus incorporates one or more electrodes within holders that lightly contact the film, a return electrode that supports the film, and a voltage coupler designed to create a discharge between these electrodes to perforate the film effectively. Additionally, a water jet sprayer is mounted on the electrode holder to deliver a jet of water where the electrodes make contact with the film, enhancing the precision of the perforation process.
Another notable invention by Cross is a "High Voltage Power Supply." This device is engineered to produce a high DC output voltage through a primary winding and a secondary winding connected via a magnetic circuit. The secondary winding consists of a series of independent coils or turns, each equipped with a rectifier element to convert induced AC voltage into a DC voltage. These rectifier elements are arranged in series, culminating in a high output level, typically a minimum of 50 kV. Furthermore, the design of the secondary coils ensures that the induced voltage remains below the Paschen minimum voltage for the gaseous medium that surrounds them. The power supply's construction can utilize surface mount technology or be designed as a printed circuit board, with the secondary coils formed as tracks on the substrate.
Career Highlights: Throughout his career, James D. Cross has demonstrated exceptional creativity and technical skills that have led to the successful registration of multiple patents. His inventions are not only reflections of his expertise but also address practical challenges in the industries they serve.
Collaborations: While specific collaborations have not been detailed in the available data, it is common for inventors like Cross to engage with various entities, including research institutions and industry partners, to further develop and commercialize their inventions.
Conclusion: James D. Cross's contributions to innovation are noteworthy, marking him as a significant figure in the world of invention. With an impressive array of patents, his work continues to pave the way for advancements in electrical and mechanical engineering, showcasing the transformative power of creative thinking and technical excellence.