Clamping ring in particular for oil duct
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United States of America Patent
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Sep 17, 2002
Grant Date -
N/A
app pub date -
Nov 3, 2000
filing date -
May 13, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns an annular clamping ring in particular for laying oil ducts including a rigid annular base (2) supporting with support apparatus a coaxial ring-shaped assembly of vertical jaws (4) mobile in the diametral planes; said apparatus includes long connecting rods (14) articulated on the base (2) and on the outside of the jaws (4) in an almost vertical position, and the rigid annular body (3) enclosing the jaw (4) assembly, mobile in vertical translation by means of controllable cylinder actuators (6) linking it to the base (2); the jaws (4) are linked with the annular body (3) by at least two connecting rods (5) forming an articulated parallelogram, such that the annular body (3) vertical displacement relative to the base (2) causes a substantially radial and synchronized displacement of the jaw assembly (4).
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