This inventor holds 3 USPTO granted patents. Top assignee: J.l. Clark, Inc.. Active years: 2001-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2001-2003
Title: Donald Leni and High-Torque Metal Spool Assembly
Introduction
Donald Leni is an inventor associated with Rockford, Illinois, and J.L. Clark, Inc. His work includes inventions for assembling metal spools designed to transmit greater torque between their components. Leni is credited with 3 patents.
Latest Patents
One of Leni’s latest patents concerns a die and method for assembling a metal spool with high torque-transmitting capacity. The spool consists of a cylindrical barrel, two flanges, and two flange hubs. A die presses the spool against a matching die, while annular curling faces curl and compress the metal edges to secure the components together.
After the curls are formed, nibs on the die swage detents into them. These detents help increase torque transfer among the barrel, flanges, and flange hubs, making the spool more suitable for wire winding and pulling. The patent also describes applying flattening paste to a metal surface within the curl to increase friction and further improve torque transmission.
Career Highlights
Leni’s patent work focuses on the design and assembly of metal spool components. The described die combines curling, compression, and swaging operations to strengthen the connections between the spool’s parts.
Collaborations
Leni is associated with J.L. Clark, Inc. His listed coworkers include Ewald A. Oppmann and Richard L. Peterson.
Conclusion
Donald Leni’s patented spool-assembly approach uses tightened curls, swaged detents, and increased friction to improve torque transfer and support demanding wire-handling applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile