Cutlery – Cutting tools – With blade moving means
Reexamination Certificate
2005-06-07
2005-06-07
Payer, Hwei-Siu (Department: 3724)
Cutlery
Cutting tools
With blade moving means
C030S347000
Reexamination Certificate
active
06901667
ABSTRACT:
An improved flexible line rotary trimmer head of the type adapted to be bumped against the ground to effect payout of predetermined lengths of cutting line and which is secured to the trimmer by a drive bolt having a non-circular head portion and a depending shaft portion. The trimmer head housing defines a tubular portion depending axially from the upper housing surface and having a particularly configured upper portion disposed about and creating an interference fit with the head portion of said drive bolt and a lower portion particularly configured to create an interference fit with the head portion of the cam member of the line feeding assembly. A slidable push retainer is carried by the shaft portion of the drive bolt adjacent the line feeding assembly for securing the assembly to the shaft portion of the drive bolt.
REFERENCES:
patent: 4097991 (1978-07-01), Proulx
patent: 4145809 (1979-03-01), Proulx
patent: 4203212 (1980-05-01), Proulx
patent: 4259782 (1981-04-01), Proulx
patent: 4458419 (1984-07-01), Proulx
patent: 4571831 (1986-02-01), White, III
patent: 4959904 (1990-10-01), Proulx
patent: 5659960 (1997-08-01), Everts et al.
patent: 6735874 (2004-05-01), Iacona
Holland & Knight LLP
Payer Hwei-Siu
Proulx Manufacturing, Inc.
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