This inventor holds 5 USPTO granted patents. Top assignees: Avdel Limited, Advel Limited, Avdel Systems Limited. Active years: 1987-1990.
Company Filing History:
2 out of 23 
1 out of 4 
1 out of 16 Years Active: 1987-1990
Title: The Innovative Contributions of William D. Bradley
Introduction
William D. Bradley is a notable inventor based in Welwyn Garden City, GB. He has made significant contributions to the field of engineering, particularly in the development of innovative fastening solutions. With a total of 5 patents to his name, Bradley's work has had a lasting impact on various industries.
Latest Patents
Among his latest inventions is the break-stem blind rivet, which features a deformable tubular shell made of aluminum alloy. This rivet includes a stem of low-carbon steel that fits closely within the shell's bore. The design incorporates at least three zones of modified strength, which are spaced apart along the length of the shell. These zones are formed by shallow grooves rolled into the surface, with the spacing between them decreasing as one moves from the tail end of the shell.
Another significant invention is a blind rivet designed to anchor in materials like softwood without breaking through the blind face. This rivet consists of a tubular shell and a stem that extends through it. The shell has a preformed head at one end, and the end portion of the shank is designed with a thinner wall to facilitate expansion. The stem features a plugging portion with an expander head that increases in diameter, allowing for effective anchoring when the pulling portion is gripped and pulled.
Career Highlights
William D. Bradley has worked with several companies throughout his career, including Avdel Limited and Avdel Systems Limited. His experience in these organizations has contributed to his expertise in fastening technologies and innovative design.
Collaborations
Bradley has collaborated with notable individuals in his field, including Raymond D. Lacey and Michael Woodrow. These partnerships have likely fostered a creative environment that has led to the development of his patented inventions.
Conclusion
William D. Bradley's contributions to the field of engineering through his innovative patents demonstrate his commitment to advancing fastening technology. His work continues to influence the industry and inspire future inventors.