Chain saw guide bar having dye-emitting nozzles

Details Chain saw guide bar having dye-emitting nozzles Chain saw guide bar having dye-emitting nozzles

1996-07-08

1998-08-25

Watts, Douglas D.

Cutlery

Combined cutlery or combined with ancillary feature

With means to apply transient fluid to tool

303795, 30387, 83928, 144 341, B27B 1702

Patent

active

057971870

ABSTRACT:
A chain saw guide bar is formed of a middle plate and a pair of side plates affixed on opposite sides of the middle plate. One (or both) of the side plates carries nozzles for emitting liquid dyes of different respective colors. Channels for conducting liquid dyes to the respective nozzles are formed by grooves cut in the interface between the middle plate and a side plate. Each channel is surrounded by a laser weld which completely isolates the channels from one another to avoid mixing the colors. The laser welds also secure the middle and side plates together. Additional laser welds secure the middle and side plates together, the additional laser welds being discontinuous.

REFERENCES:
patent: 4641432 (1987-02-01), Kume
patent: 4947550 (1990-08-01), Wenzel
patent: 4981129 (1991-01-01), Osterman et al.
patent: 5050303 (1991-09-01), Sinclair et al.
patent: 5092044 (1992-03-01), Edgerton et al.
patent: 5143131 (1992-09-01), Seigneur et al.
patent: 5426854 (1995-06-01), Leini et al.
patent: 5564484 (1996-10-01), Ketonen

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