This inventor holds 3 USPTO granted patents. Top assignees: Black Clawson, Inc., Other. Active years: 1978-1983.
Company Filing History:
1 out of 9 
2 out of 834,350 Years Active: 1978-1983
Title: Innovations by John H. Burk
Introduction
John H. Burk is a notable inventor based in Pleasant Hill, CA (US). He has made significant contributions to the field of rock crushing technology. With a total of 3 patents, Burk's innovations have improved the efficiency and functionality of rock crushers.
Latest Patents
One of Burk's latest patents is for a replacement wear pin and replaceable impeller assembly for impact. This invention features an improved impeller and replaceable wear parts for a rock crusher that utilizes a turntable driven by a vertical drive shaft. The impeller assembly includes wear pins, wear plates, block members, and heel plates, all mounted on a removable tray. This design allows for easy lifting from the turntable as a unit without the need to remove the heavy turntable from the drive shaft. The interchangeable wear pins and wear plates can be quickly and easily relocated or replaced within the impeller assembly.
Another significant patent by Burk is for rock crusher breaker blocks and adjustment apparatus. This invention includes a breaker block, radial and rotational breaker block adjustment assembly, and vertical adjustment means for rock crushers with an impeller mounted on a vertical axis. The breaker blocks are arranged in cell members forming a concentric circle around the vertical axis. They are detachably connected to adjustment assemblies that move the blocks toward the impeller as they wear, allowing for rotation if the impact face wears unevenly. An annular ring in one form of the invention supports the breaker blocks and cell members, which can be moved vertically in relation to the impeller.
Career Highlights
Throughout his career, John H. Burk has worked with various companies, including Black Clawson, Inc. His experience in the industry has contributed to his innovative designs and patents.
Collaborations
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Conclusion
John H. Burk's contributions to rock crushing technology through his patents demonstrate his innovative spirit and expertise in the field. His work continues to influence the industry and improve the efficiency of rock crushers.