Chain saw drive sprocket with wear mark indicators
First Claim
Patent Images
1. In a chain saw sprocket having an axis of rotation, a saw chain contacting surface on the sprocket and disposed about the axis, and a plurality of saw chain driving teeth, each of the teeth having a tip, the improvement comprising:
- at least one groove disposed in the saw chain contacting surface;
the groove being parallel to the axis of the sprocket;
the groove being of a preselected depth and being disposed a predetermined distance from the tip of a saw chain driving tooth;
the depth of the groove being selected to indicate that replacement of the sprocket is necessary when the saw chain contacting surface is worn such that said surface is at the depth of the groove therein.
3 Assignments
0 Petitions
Accused Products
Abstract
A saw chain sprocket has wear indicating grooves disposed in the saw chain contacting surface, each groove being located at a predetermined distance from the tip of the saw chain driving tooth such that when the sprocket surface is worn to the depth of one of the grooves, sprocket replacement is indicated as necessary.
18 Citations
7 Claims
-
1. In a chain saw sprocket having an axis of rotation, a saw chain contacting surface on the sprocket and disposed about the axis, and a plurality of saw chain driving teeth, each of the teeth having a tip, the improvement comprising:
-
at least one groove disposed in the saw chain contacting surface; the groove being parallel to the axis of the sprocket; the groove being of a preselected depth and being disposed a predetermined distance from the tip of a saw chain driving tooth; the depth of the groove being selected to indicate that replacement of the sprocket is necessary when the saw chain contacting surface is worn such that said surface is at the depth of the groove therein. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification