Pipe joints or couplings – Essential catch – Resilient ring
Reexamination Certificate
2006-11-21
2006-11-21
Bochna, David (Department: 3679)
Pipe joints or couplings
Essential catch
Resilient ring
C285S307000, C285S340000
Reexamination Certificate
active
07137653
ABSTRACT:
A locking ring designed to work in a self restraining pipe joint. This locking ring is designed (which may include attention to a combination of shape and material properties) to twist when exposed to a concentrated load and thereby distribute this load across broader area of the pipe joint to increase the thrust restraining capabilities of the joint
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Bochna David
Bradley Arant Rose & White
United States Pipe and Foundry Company, LLC
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