Multi-functional connector, drill head, and method
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United States of America Patent
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Jun 30, 2020
Grant Date -
Mar 15, 2018
app pub date -
Apr 2, 2015
filing date -
Apr 2, 2015
priority date (Note) -
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Abstract
A multi-functional connector is arranged for connecting a functional drill element to a drill head, such as an extendable cylinder of a drill head. The multi-functional connector includes a first connecting element having a first receptacle, a second connecting element having a second receptacle, and a retainer element having a retainer opening. The first receptacle has at least two driving surfaces for transferring a torque in a first direction, the second receptacle has at least two driving surfaces for transferring a torque in a first direction and in a second, opposite direction, and the retainer element has at least one retaining section to prevent a movement of a second functional drill element relative to the second connecting element in a retracting position of the second functional drill element.
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