Company Filing History:
2 out of 8 
1 out of 1 
3 out of 832,891 Years Active: 1979-2000
Title: The Innovative Contributions of Ernest K. Schrader
Introduction
Ernest K. Schrader is a notable inventor based in Walla Walla, WA (US). He holds a total of 6 patents that reflect his innovative spirit and dedication to advancing technology in construction and engineering.
Latest Patents
Among his latest inventions is the "Dowel Bar Sleeve System and Method." This invention features a rectangular dowel bar sleeve designed to receive dowel bars and tie-bars. It allows for the opening and closing of joints between adjacent cast-in-place slabs and pavements while accommodating differential lateral movement. Additionally, it prevents differential vertical movement of the slabs on either side of the joint. Another significant patent is the "Yielding Tie Bar," which transfers load stress across joints between adjacent concrete slabs. This invention helps to reduce cracking by accommodating internal movement of the slabs. The yielding tie bar is designed with a yieldable strip made of metal or plastic resin, ensuring that it can effectively manage slab movement without causing damage.
Career Highlights
Throughout his career, Schrader has made significant contributions to the field of construction technology. He has worked with various companies, including Kalman Floor Company, where he applied his innovative ideas to real-world applications. His work has had a lasting impact on the industry, particularly in the development of systems that enhance the durability and functionality of concrete structures.
Collaborations
Schrader has collaborated with notable individuals in his field, including Carl N. Ytterberg and Russell Boxall. These partnerships have allowed him to expand his knowledge and refine his inventions, contributing to the advancement of construction technology.
Conclusion
Ernest K. Schrader's contributions to the field of construction through his innovative patents demonstrate his commitment to improving engineering practices. His inventions, particularly in the area of joint management and load transfer, have made a significant impact on the industry.