Cutlery – Combined cutlery or combined with ancillary feature – With means to apply transient fluid to tool
Patent
1990-12-14
1991-09-24
Watts, Douglas D.
Cutlery
Combined cutlery or combined with ancillary feature
With means to apply transient fluid to tool
30383, 47 15, B23D 5904
Patent
active
050503030
ABSTRACT:
An improved saw bar and a chain sawing assembly includes a frame which houses a drive engine or motor and receives the saw bar, an endless cutting chain, and a sprocket mechanically coupling the drive engine to the cutting chain. The saw bar includes a bar member having a slot formed therein through at least a portion of the thickness of the bar member, with the slot extending from an attachment end to a nose end of the bar member. The saw bar also has a channel assembly, such as a tubular channel assembly, positioned in cooperation with the slot to deliver fluid from the attachment end to a channel outlet. In one embodiment, the saw bar has an idler sprocket pivotally mounted within a sprocket mounting slot formed at the bar member nose end. The channel outlet opens into the sprocket mounting slot to deliver lubrication fluid to the sprocket teeth. In an alternate embodiment, the channel outlet comprises a plurality of apertures along the length of an exposed wall of the channel member. The plurality of apertures deliver a fluid to a surface which is formed during cutting.
A method is also provided of constructing an improved saw bar as described above.
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Harfst Michael D.
Pink Paul W.
Plumbley Robin A.
Sinclair James B.
Blount, Inc.
Watts Douglas D.
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