Chain saw guide bar

Details Chain saw guide bar Chain saw guide bar

1990-07-09

1991-07-30

Watts, Douglas D.

Cutlery

Cutting tools

Saw

30383, B27B 1702, B23D 5702

Patent

active

050350587

ABSTRACT:
A guide bar for a chain saw, the bar having oppositely located flat sides. A plurality of recesses are formed in each of the sides, the recesses on one side being offset from the recesses on the other side. At least some of the recesses are filled with a lightweight material. Some of the recesses may also function as oil reservoirs and oil passages between the guide grooves of the bar.

REFERENCES:
patent: 2913020 (1959-11-01), Nielsen
patent: 3949475 (1976-04-01), Tokarz
patent: 4361960 (1982-12-01), Halversen
patent: 4393590 (1983-07-01), Pantzar
patent: 4693005 (1987-09-01), Wehle et al.
patent: 4825553 (1989-05-01), Bruccheri
patent: 4837934 (1989-06-01), Krohn
patent: 4885843 (1989-12-01), Kelsay et al.
patent: 4903410 (1990-02-01), Weininger et al.

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