Trimmer head for use in flexible line rotary trimmers having...

Cutlery – Cutting tools – With blade moving means

Reexamination Certificate

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Details

C030S347000

Reexamination Certificate

active

10933486

ABSTRACT:
A trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one line radially extending receptor channel formed by a plurality of inwardly tapered walls and is polygonal in cross-section. So configured, the channel walls will securely grip the cutting line upon the line being inserted in the channel and wound about the spool. To provide uniform winding of the line, a plurality of cam, cam abutment and sliding surfaces are operatively connected to the housing and spool such that when the spool is manually rotated relative to the housing in the drive direction, the spool is caused to reciprocate axially within the housing evenly distributing the line about the body of the spool.

REFERENCES:
patent: 4020552 (1977-05-01), Mizuno et al.
patent: 4035912 (1977-07-01), Ballas et al.
patent: 4067108 (1978-01-01), Ballas
patent: 4091538 (1978-05-01), Akiyama
patent: 4177561 (1979-12-01), Ballas
patent: 4203212 (1980-05-01), Proulx
patent: 4259782 (1981-04-01), Proulx
patent: 4458419 (1984-07-01), Proulx
patent: 4959904 (1990-10-01), Proulx
patent: 5490641 (1996-02-01), Worthing
patent: 5659960 (1997-08-01), Everts et al.
patent: 5671536 (1997-09-01), Everts et al.
patent: 5806192 (1998-09-01), Everts et al.
patent: 6148523 (2000-11-01), Everts et al.
patent: 6263580 (2001-07-01), Stark et al.
patent: 6901667 (2005-06-01), Proulx
patent: 6952877 (2005-10-01), Pfaltzgraff
patent: 2005/0217120 (2005-10-01), Proulx
patent: 2005/0252009 (2005-11-01), Alliss

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