DEVICE PROVIDING ASSISTANCE IN THE WORKING OF PIPES, INCLUDING MULTIPLE COMPONENTS HAVING CORRESPONDING SURFACES AND A CATCH
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United States of America Patent
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app pub date -
Sep 23, 2011
filing date -
Sep 24, 2010
priority date (Note) -
Abandoned
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Abstract
The invention relates to a device providing assistance in the working of pipes, including: a plate (5) having an internal cavity and comprising parts (13A, 13B, 13C) assembled together such that they can pivot to occupy a closed position in which they are joined to form a ring; and a plate locking device. The adjacent ends of two plates (13A, 13B, 13C) include corresponding surfaces that are shaped to cooperate and establish a connection as the plate (5) moves into the closed position. Each connection comprises two complementary surfaces (37) that come into contact with one another in the closed plate position. The locking device comprises at least one catch which can be actuated in said position and which acts on the adjacent ends of the plates (13A, 13B, 13C) in order to clamp the complementary contact surface against one another.
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