Coaxial drive cable centering device
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United States of America Patent
Stats
-
Dec 11, 2012
Grant Date -
Jul 21, 2011
app pub date -
Jan 20, 2010
filing date -
Jan 20, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A working tool (10) includes a gasoline motor (11), a working head (12), and a shaft assembly (14) extending between and mechanically coupling the engine and the working head. The shaft assembly includes a frame tube (18), a flexible drive cable (19), and an elongated coaxial drive cable centering device or support member (20) positioned between the drive cable and the frame tube. The support member includes a sheath (21) and a plurality of centering members (22). The centering members includes contacting elements (23) in the form of spiral or a flexible rubber bushings having a central tube (34) and a plurality of spaced annular rings or flanges (35).
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